From 1bf9f0e0fd0add9f57d0935906012157c9d70e45 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Sun, 8 Jun 2025 15:39:14 -0700
Subject: [PATCH 01/21] feat(api): add command registry endpoint and update API
 configuration

---
 devex-ui/package-lock.json                    | 118 +---------------
 devex-ui/src/components/CommandIssuer.tsx     |  81 +++++++----
 devex-ui/src/data/api.ts                      |   6 +-
 devex-ui/src/data/apiService.ts               |   7 +-
 devex-ui/src/data/commandRegistry.ts          | 126 ------------------
 devex-ui/src/data/index.ts                    |   1 -
 .../src/mocks/factories/registry.factory.ts   | 124 +++++++++++++++++
 devex-ui/src/mocks/handlers.ts                |  11 ++
 devex-ui/src/mocks/scenarios/default.ts       |   3 +
 devex-ui/src/utils/schemaValidator.ts         |  15 ++-
 package-lock.json                             |  23 ++++
 package.json                                  |   1 +
 src/api/index.ts                              |  22 ++-
 13 files changed, 252 insertions(+), 286 deletions(-)
 delete mode 100644 devex-ui/src/data/commandRegistry.ts
 create mode 100644 devex-ui/src/mocks/factories/registry.factory.ts

diff --git a/devex-ui/package-lock.json b/devex-ui/package-lock.json
index b84ce0b3..b4b0ca55 100644
--- a/devex-ui/package-lock.json
+++ b/devex-ui/package-lock.json
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       "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "emoji-regex": "^8.0.0",
@@ -7320,7 +7231,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
       "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -7330,14 +7240,12 @@
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
       "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/string-width-cjs/node_modules/strip-ansi": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
       "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-regex": "^5.0.1"
@@ -7350,7 +7258,6 @@
       "version": "7.1.0",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.1.0.tgz",
       "integrity": "sha512-iq6eVVI64nQQTRYq2KtEg2d2uU7LElhTJwsH4YzIHZshxlgZms/wIc4VoDQTlG/IvVIrBKG06CrZnp0qv7hkcQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-regex": "^6.0.1"
@@ -7367,7 +7274,6 @@
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
       "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-regex": "^5.0.1"
@@ -7380,7 +7286,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
       "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -7403,7 +7308,6 @@
       "version": "3.35.0",
       "resolved": "https://registry.npmjs.org/sucrase/-/sucrase-3.35.0.tgz",
       "integrity": "sha512-8EbVDiu9iN/nESwxeSxDKe0dunta1GOlHufmSSXxMD2z2/tMZpDMpvXQGsc+ajGo8y2uYUmixaSRUc/QPoQ0GA==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@jridgewell/gen-mapping": "^0.3.2",
@@ -7439,7 +7343,6 @@
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/supports-preserve-symlinks-flag/-/supports-preserve-symlinks-flag-1.0.0.tgz",
       "integrity": "sha512-ot0WnXS9fgdkgIcePe6RHNk1WA8+muPa6cSjeR3V8K27q9BB1rTE3R1p7Hv0z1ZyAc8s6Vvv8DIyWf681MAt0w==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">= 0.4"
@@ -7462,7 +7365,6 @@
       "version": "3.4.17",
       "resolved": "https://registry.npmjs.org/tailwindcss/-/tailwindcss-3.4.17.tgz",
       "integrity": "sha512-w33E2aCvSDP0tW9RZuNXadXlkHXqFzSkQew/aIa2i/Sj8fThxwovwlXHSPXTbAHwEIhBFXAedUhP2tueAKP8Og==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "@alloc/quick-lru": "^5.2.0",
@@ -7516,7 +7418,6 @@
       "version": "3.3.1",
       "resolved": "https://registry.npmjs.org/thenify/-/thenify-3.3.1.tgz",
       "integrity": "sha512-RVZSIV5IG10Hk3enotrhvz0T9em6cyHBLkH/YAZuKqd8hRkKhSfCGIcP2KUY0EPxndzANBmNllzWPwak+bheSw==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "any-promise": "^1.0.0"
@@ -7526,7 +7427,6 @@
       "version": "1.6.0",
       "resolved": "https://registry.npmjs.org/thenify-all/-/thenify-all-1.6.0.tgz",
       "integrity": "sha512-RNxQH/qI8/t3thXJDwcstUO4zeqo64+Uy/+sNVRBx4Xn2OX+OZ9oP+iJnNFqplFra2ZUVeKCSa2oVWi3T4uVmA==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "thenify": ">= 3.1.0 < 4"
@@ -7545,7 +7445,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/to-regex-range/-/to-regex-range-5.0.1.tgz",
       "integrity": "sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "is-number": "^7.0.0"
@@ -7587,7 +7486,6 @@
       "version": "0.1.13",
       "resolved": "https://registry.npmjs.org/ts-interface-checker/-/ts-interface-checker-0.1.13.tgz",
       "integrity": "sha512-Y/arvbn+rrz3JCKl9C4kVNfTfSm2/mEp5FSz5EsZSANGPSlQrpRI5M4PKF+mJnE52jOO90PnPSc3Ur3bTQw0gA==",
-      "dev": true,
       "license": "Apache-2.0"
     },
     "node_modules/tslib": {
@@ -7776,7 +7674,6 @@
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha512-EPD5q1uXyFxJpCrLnCc1nHnq3gOa6DZBocAIiI2TaSCA7VCJ1UJDMagCzIkXNsUYfD1daK//LTEQ8xiIbrHtcw==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/uuid": {
@@ -7891,7 +7788,6 @@
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/which/-/which-2.0.2.tgz",
       "integrity": "sha512-BLI3Tl1TW3Pvl70l3yq3Y64i+awpwXqsGBYWkkqMtnbXgrMD+yj7rhW0kuEDxzJaYXGjEW5ogapKNMEKNMjibA==",
-      "dev": true,
       "license": "ISC",
       "dependencies": {
         "isexe": "^2.0.0"
@@ -7917,7 +7813,6 @@
       "version": "8.1.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-8.1.0.tgz",
       "integrity": "sha512-si7QWI6zUMq56bESFvagtmzMdGOtoxfR+Sez11Mobfc7tm+VkUckk9bW2UeffTGVUbOksxmSw0AA2gs8g71NCQ==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-styles": "^6.1.0",
@@ -7936,7 +7831,6 @@
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
       "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-styles": "^4.0.0",
@@ -7954,7 +7848,6 @@
       "version": "5.0.1",
       "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
       "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=8"
@@ -7964,14 +7857,12 @@
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
       "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
-      "dev": true,
       "license": "MIT"
     },
     "node_modules/wrap-ansi-cjs/node_modules/string-width": {
       "version": "4.2.3",
       "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
       "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "emoji-regex": "^8.0.0",
@@ -7986,7 +7877,6 @@
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
       "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "dev": true,
       "license": "MIT",
       "dependencies": {
         "ansi-regex": "^5.0.1"
@@ -7999,7 +7889,6 @@
       "version": "6.2.1",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.1.tgz",
       "integrity": "sha512-bN798gFfQX+viw3R7yrGWRqnrN2oRkEkUjjl4JNn4E8GxxbjtG3FbrEIIY3l8/hrwUwIeCZvi4QuOTP4MErVug==",
-      "dev": true,
       "license": "MIT",
       "engines": {
         "node": ">=12"
@@ -8022,7 +7911,6 @@
       "version": "2.6.0",
       "resolved": "https://registry.npmjs.org/yaml/-/yaml-2.6.0.tgz",
       "integrity": "sha512-a6ae//JvKDEra2kdi1qzCyrJW/WZCgFi8ydDV+eXExl95t+5R+ijnqHJbz9tmMh8FUjx3iv2fCQ4dclAQlO2UQ==",
-      "dev": true,
       "license": "ISC",
       "bin": {
         "yaml": "bin.mjs"
diff --git a/devex-ui/src/components/CommandIssuer.tsx b/devex-ui/src/components/CommandIssuer.tsx
index 6dc8e188..a82cb065 100644
--- a/devex-ui/src/components/CommandIssuer.tsx
+++ b/devex-ui/src/components/CommandIssuer.tsx
@@ -1,5 +1,5 @@
 //devex-ui/src/components/CommandIssuer.tsx
-import { useState } from "react";
+import { useState, useEffect } from "react";
 import { Button } from "@/components/ui/button";
 import { Input } from "@/components/ui/input";
 import { Label } from "@/components/ui/label";
@@ -9,13 +9,14 @@ import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@
 import { Badge } from "@/components/ui/badge";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Clock, Send, RotateCcw, Terminal, ChevronDown, ChevronRight, RefreshCw, AlertCircle } from "lucide-react";
-import { commandRegistry } from "@/data";
-import type { CommandSchema } from "@/data";
+import type { CommandSchema } from "@/data/types";
 import { useCommands, useSubmitCommand } from "@/hooks/api";
-import { validate } from "@/utils/schemaValidator";
+import { validate, registerSchemas } from "@/utils/schemaValidator";
 import { makeExample } from "@/utils/schemaFaker";
 import { toast } from "@/components/ui/sonner";
 import { useAppCtx } from '@/app/AppProvider';
+import { useQuery } from "@tanstack/react-query";
+import { fetchCommandRegistry } from "@/data/apiService";
 
 const generateUUID4 = (): string => {
   return crypto.randomUUID();
@@ -35,6 +36,18 @@ export const CommandIssuer = () => {
   // Use React Query hooks
   const { data: recentCommands = [] } = useCommands(tenant, 10);
   const { mutate: submitCommandMutation, isPending: isSubmitting } = useSubmitCommand();
+  const { data: commandRegistry = [], isLoading: isLoadingRegistry } = useQuery({
+    queryKey: ['commandRegistry'],
+    queryFn: fetchCommandRegistry,
+    staleTime: Infinity
+  });
+
+  // Register schemas when registry is loaded
+  useEffect(() => {
+    if (commandRegistry.length > 0) {
+      registerSchemas(commandRegistry);
+    }
+  }, [commandRegistry]);
 
   // Extract field names from validation error messages
   const extractFieldNames = (errors: string[]): Set<string> => {
@@ -293,27 +306,34 @@ export const CommandIssuer = () => {
             <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
               <div className="space-y-2">
                 <Label htmlFor="command-type" className="text-slate-300">Command Type</Label>
-                <Select value={selectedCommand} onValueChange={(value) => {
-                  setSelectedCommand(value);
-                  setFormData({});
-                  setPayload("");
-                  setValidationErrors([]);
-                  setInvalidFields(new Set());
-                }}>
-                  <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
-                    <SelectValue placeholder="Select command type" />
-                  </SelectTrigger>
-                  <SelectContent className="bg-slate-800 border-slate-700">
-                    {commandRegistry.map((cmd) => (
-                      <SelectItem key={cmd.type} value={cmd.type} className="text-slate-100 hover:bg-slate-700">
-                        <div className="flex flex-col items-start">
-                          <span>{cmd.type}</span>
-                          <span className="text-xs text-slate-400">{cmd.description}</span>
-                        </div>
-                      </SelectItem>
-                    ))}
-                  </SelectContent>
-                </Select>
+                {isLoadingRegistry ? (
+                  <div className="flex items-center space-x-2 p-2 bg-slate-800 border border-slate-700 rounded">
+                    <div className="animate-spin h-4 w-4 border-2 border-blue-500 border-t-transparent rounded-full" />
+                    <span className="text-slate-400">Loading command registry...</span>
+                  </div>
+                ) : (
+                  <Select value={selectedCommand} onValueChange={(value) => {
+                    setSelectedCommand(value);
+                    setFormData({});
+                    setPayload("");
+                    setValidationErrors([]);
+                    setInvalidFields(new Set());
+                  }}>
+                    <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
+                      <SelectValue placeholder="Select command type" />
+                    </SelectTrigger>
+                    <SelectContent className="bg-slate-800 border-slate-700">
+                      {commandRegistry.map((cmd) => (
+                        <SelectItem key={cmd.type} value={cmd.type} className="text-slate-100 hover:bg-slate-700">
+                          <div className="flex flex-col items-start">
+                            <span>{cmd.type}</span>
+                            <span className="text-xs text-slate-400">{cmd.description}</span>
+                          </div>
+                        </SelectItem>
+                      ))}
+                    </SelectContent>
+                  </Select>
+                )}
                 {selectedCommandSchema && (
                   <div className="text-xs text-slate-400">
                     Domain: {selectedCommandSchema.domain}
@@ -344,7 +364,7 @@ export const CommandIssuer = () => {
               </div>
             </div>
 
-            {selectedCommandSchema && (
+            {!isLoadingRegistry && selectedCommandSchema && (
               <div className="space-y-4">
                 <h3 className="text-lg font-semibold text-slate-100">Payload</h3>
 
@@ -383,6 +403,12 @@ export const CommandIssuer = () => {
                 </Card>
               </div>
             )}
+            {isLoadingRegistry && selectedCommand && (
+              <div className="flex items-center justify-center p-8 bg-slate-800 border border-slate-700 rounded">
+                <div className="animate-spin h-5 w-5 border-2 border-blue-500 border-t-transparent rounded-full mr-3" />
+                <span className="text-slate-400">Loading schema...</span>
+              </div>
+            )}
 
             {validationErrors.length > 0 && (
               <div className="mb-4 p-3 bg-red-900/30 border border-red-700 rounded-md">
@@ -401,7 +427,7 @@ export const CommandIssuer = () => {
             <div className="flex gap-3">
               <Button 
                 onClick={handleSubmit}
-                disabled={!selectedCommand || isSubmitting}
+                disabled={!selectedCommand || isSubmitting || isLoadingRegistry}
                 className="bg-blue-600 hover:bg-blue-700"
               >
                 {isSubmitting ? (
@@ -420,6 +446,7 @@ export const CommandIssuer = () => {
               {selectedCommand && (
                 <Button 
                   variant="secondary"
+                  disabled={isLoadingRegistry}
                   onClick={() => {
                     const schema = selectedCommandSchema?.schema;
                     if (!schema) return;
diff --git a/devex-ui/src/data/api.ts b/devex-ui/src/data/api.ts
index 864426cf..cf22873d 100644
--- a/devex-ui/src/data/api.ts
+++ b/devex-ui/src/data/api.ts
@@ -1,17 +1,17 @@
 //devex-ui/src/data/api.ts
 import { toast } from "@/components/ui/sonner";
 
-
 // API client configuration
 export const API_CONFIG = {
-  baseUrl: import.meta.env.VITE_API_URL || '',
+  baseUrl: localStorage.getItem('api_uri') || import.meta.env.VITE_API_URL || '',
   wsUrl: import.meta.env.VITE_WS_URL || 'ws://localhost:8080/events/stream',
   endpoints: {
     events: '/api/events',
     commands: '/api/commands',
     traces: '/api/traces',
     aggregates: '/api/aggregates',
-    logs: '/api/logs'
+    logs: '/api/logs',
+    registry: '/api/registry/commands'
   }
 };
 
diff --git a/devex-ui/src/data/apiService.ts b/devex-ui/src/data/apiService.ts
index 8b617036..23d58c62 100644
--- a/devex-ui/src/data/apiService.ts
+++ b/devex-ui/src/data/apiService.ts
@@ -1,6 +1,6 @@
 //devex-ui/src/data/apiService.ts
 import { apiClient, API_CONFIG } from './api';
-import type { Event, Command, CommandResult } from './types';
+import type { Event, Command, CommandResult, CommandSchema } from './types';
 import type { LogLine } from './mockLogs';
 
 // Events API
@@ -48,3 +48,8 @@ export const fetchTraceById = async (traceId: string) => {
 
 export const fetchLogs = (tenant: string, limit=50) =>
   apiClient.get<LogLine[]>(API_CONFIG.endpoints.logs, { tenant_id: tenant, limit: limit+'' });
+
+// Registry API
+export const fetchCommandRegistry = async (): Promise<CommandSchema[]> => {
+  return apiClient.get<CommandSchema[]>(API_CONFIG.endpoints.registry, { includeSchema: 'true' });
+};
diff --git a/devex-ui/src/data/commandRegistry.ts b/devex-ui/src/data/commandRegistry.ts
deleted file mode 100644
index 3d097718..00000000
--- a/devex-ui/src/data/commandRegistry.ts
+++ /dev/null
@@ -1,126 +0,0 @@
-//devex-ui/src/data/commandRegistry.ts
-
-export interface CommandSchema {
-  type: string;
-  domain: string;
-  description: string;
-  schema: {
-    type: string;
-    title: string;
-    properties: Record<string, unknown>;
-    required?: string[];
-  };
-}
-
-export const commandRegistry: CommandSchema[] = [
-  {
-    "type": "logMessage",
-    "domain": "system",
-    "description": "System command: logMessage",
-    "schema": {
-      "type": "object",
-      "title": "logMessage",
-      "properties": {
-        "message": {
-          "type": "string"
-        },
-        "systemId": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "message"
-      ]
-    }
-  },
-  {
-    "type": "simulateFailure",
-    "domain": "system",
-    "description": "System command: simulateFailure",
-    "schema": {
-      "type": "object",
-      "title": "simulateFailure",
-      "properties": {
-        "systemId": {
-          "type": "string"
-        }
-      }
-    }
-  },
-  {
-    "type": "emitMultipleEvents",
-    "domain": "system",
-    "description": "System command: emitMultipleEvents",
-    "schema": {
-      "type": "object",
-      "title": "emitMultipleEvents",
-      "properties": {
-        "count": {
-          "type": "number"
-        },
-        "systemId": {
-          "type": "string"
-        }
-      },
-      "required": [
-        "count"
-      ]
-    }
-  },
-  {
-    "type": "executeTest",
-    "domain": "system",
-    "description": "System command: executeTest",
-    "schema": {
-      "type": "object",
-      "title": "executeTest",
-      "properties": {
-        "testId": {
-          "type": "string"
-        },
-        "testName": {
-          "type": "string"
-        },
-        "systemId": {
-          "type": "string"
-        },
-        "parameters": {
-          "type": "object",
-          "additionalProperties": true
-        }
-      },
-      "required": [
-        "testId",
-        "testName"
-      ]
-    }
-  },
-  {
-    "type": "executeRetryableTest",
-    "domain": "system",
-    "description": "System command: executeRetryableTest",
-    "schema": {
-      "type": "object",
-      "title": "executeRetryableTest",
-      "properties": {
-        "testId": {
-          "type": "string"
-        },
-        "testName": {
-          "type": "string"
-        },
-        "systemId": {
-          "type": "string"
-        },
-        "parameters": {
-          "type": "object",
-          "additionalProperties": true
-        }
-      },
-      "required": [
-        "testId",
-        "testName"
-      ]
-    }
-  }
-];
diff --git a/devex-ui/src/data/index.ts b/devex-ui/src/data/index.ts
index 3e3bf169..faf76a78 100644
--- a/devex-ui/src/data/index.ts
+++ b/devex-ui/src/data/index.ts
@@ -2,6 +2,5 @@
 
 // Re-export all data and API functions for easy imports
 export * from './types';
-export * from './commandRegistry';
 export * from './api';
 export * from './apiService';
diff --git a/devex-ui/src/mocks/factories/registry.factory.ts b/devex-ui/src/mocks/factories/registry.factory.ts
new file mode 100644
index 00000000..43dadec0
--- /dev/null
+++ b/devex-ui/src/mocks/factories/registry.factory.ts
@@ -0,0 +1,124 @@
+// devex-ui/src/mocks/factories/registry.factory.ts
+
+export function makeCommandRegistry() {
+  return [
+    {
+      type: "CreateUser",
+      domain: "user",
+      description: "Creates a new user in the system",
+      schema: {
+        type: "object",
+        title: "CreateUser",
+        properties: {
+          userId: { type: "string" },
+          email: { type: "string", format: "email" },
+          name: { type: "string" }
+        },
+        required: ["userId", "email"]
+      }
+    },
+    {
+      type: "PlaceOrder",
+      domain: "order",
+      description: "Places a new order",
+      schema: {
+        type: "object",
+        title: "PlaceOrder",
+        properties: {
+          orderId: { type: "string" },
+          userId: { type: "string" },
+          total: { type: "number" }
+        },
+        required: ["orderId", "userId"]
+      }
+    },
+    {
+      type: "ProcessPayment",
+      domain: "payment",
+      description: "Processes a payment for an order",
+      schema: {
+        type: "object",
+        title: "ProcessPayment",
+        properties: {
+          paymentId: { type: "string" },
+          orderId: { type: "string" },
+          amount: { type: "number" }
+        },
+        required: ["paymentId", "orderId"]
+      }
+    },
+    {
+      type: "UpdateUser",
+      domain: "user",
+      description: "Updates user details",
+      schema: {
+        type: "object",
+        title: "UpdateUser",
+        properties: {
+          userId: { type: "string" },
+          name: { type: "string" },
+          email: { type: "string", format: "email" }
+        },
+        required: ["userId"]
+      }
+    },
+    {
+      type: "CreateProduct",
+      domain: "catalog",
+      description: "Creates a new product",
+      schema: {
+        type: "object",
+        title: "CreateProduct",
+        properties: {
+          productId: { type: "string" },
+          name: { type: "string" },
+          price: { type: "number" }
+        },
+        required: ["productId", "name"]
+      }
+    },
+    {
+      type: "CancelOrder",
+      domain: "order",
+      description: "Cancels an existing order",
+      schema: {
+        type: "object",
+        title: "CancelOrder",
+        properties: {
+          orderId: { type: "string" },
+          reason: { type: "string" }
+        },
+        required: ["orderId"]
+      }
+    },
+    {
+      type: "ProcessRefund",
+      domain: "payment",
+      description: "Processes a refund for a payment",
+      schema: {
+        type: "object",
+        title: "ProcessRefund",
+        properties: {
+          refundId: { type: "string" },
+          paymentId: { type: "string" },
+          amount: { type: "number" }
+        },
+        required: ["refundId", "paymentId"]
+      }
+    },
+    {
+      type: "UpdateInventory",
+      domain: "inventory",
+      description: "Updates inventory levels for a product",
+      schema: {
+        type: "object",
+        title: "UpdateInventory",
+        properties: {
+          productId: { type: "string" },
+          quantity: { type: "number" }
+        },
+        required: ["productId"]
+      }
+    }
+  ];
+}
\ No newline at end of file
diff --git a/devex-ui/src/mocks/handlers.ts b/devex-ui/src/mocks/handlers.ts
index 314cc27d..0b5aa5d3 100644
--- a/devex-ui/src/mocks/handlers.ts
+++ b/devex-ui/src/mocks/handlers.ts
@@ -13,8 +13,19 @@ import {
 } from './stores';
 import { makeEvent } from './factories/event.factory';
 import { makeLog } from './factories/log.factory';
+import { makeCommandRegistry } from './factories/registry.factory';
 
 export const handlers = [
+  // Registry handler
+  http.get('/api/registry/commands', ({ request }) => {
+    const url = new URL(request.url);
+    const includeSchema = url.searchParams.get('includeSchema') === 'true';
+    const registry = makeCommandRegistry();
+
+    return HttpResponse.json(
+      includeSchema ? registry : registry.map(({ schema, ...rest }) => rest)
+    );
+  }),
   // Logs list
   http.get('/api/logs', ({ request }) => {
     const url = new URL(request.url);
diff --git a/devex-ui/src/mocks/scenarios/default.ts b/devex-ui/src/mocks/scenarios/default.ts
index 757b5ea8..376718f1 100644
--- a/devex-ui/src/mocks/scenarios/default.ts
+++ b/devex-ui/src/mocks/scenarios/default.ts
@@ -7,8 +7,11 @@ import { makeEvent } from '../factories/event.factory';
 import { makeCommand } from '../factories/command.factory';
 import { makeTrace } from '../factories/trace.factory';
 import { makeLog } from '../factories/log.factory';
+import { makeCommandRegistry } from '../factories/registry.factory';
 import type { Command } from '@/data/types';
 
+export const mockCommandRegistry = makeCommandRegistry();
+
 // preserves current demo dataset
 export function loadDefault() {
   // Optional: reset first
diff --git a/devex-ui/src/utils/schemaValidator.ts b/devex-ui/src/utils/schemaValidator.ts
index 6d1b4c36..27cb441f 100644
--- a/devex-ui/src/utils/schemaValidator.ts
+++ b/devex-ui/src/utils/schemaValidator.ts
@@ -1,15 +1,18 @@
 //devex-ui/src/utils/schemaValidator.ts
 import Ajv, { ErrorObject } from 'ajv';
 import addFormats from 'ajv-formats';
-import { commandRegistry } from '@/data';
+import type { CommandSchema } from '@/data/types';
 
 const ajv = new Ajv({ strict: false, allErrors: true });
 addFormats(ajv);                       // uuid, email, date-time …
 
-export const validators: Record<string, ReturnType<Ajv['compile']>> =
-  Object.fromEntries(
-    commandRegistry.map(c => [c.type, ajv.compile(c.schema)])
-  );
+export const validators: Record<string, ReturnType<Ajv['compile']>> = {};
+
+export function registerSchemas(registry: CommandSchema[]) {
+  registry.forEach((cmd) => {
+    validators[cmd.type] = ajv.compile(cmd.schema);
+  });
+}
 
 export function validate(type: string, data: unknown) {
   const v = validators[type];
@@ -20,4 +23,4 @@ export function validate(type: string, data: unknown) {
     ok,
     errors: errs.map(e => `${e.instancePath || '(root)'} ${e.message}`)
   };
-}
\ No newline at end of file
+}
diff --git a/package-lock.json b/package-lock.json
index c3afe937..f6e37dfa 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -17,6 +17,7 @@
         "@temporalio/worker": "^1.7.4",
         "@temporalio/workflow": "^1.7.4",
         "@types/pino": "^7.0.4",
+        "cors": "^2.8.5",
         "dotenv": "^16.3.1",
         "drizzle-kit": "^0.31.0",
         "drizzle-orm": "^0.43.1",
@@ -4632,6 +4633,19 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/cors": {
+      "version": "2.8.5",
+      "resolved": "https://registry.npmjs.org/cors/-/cors-2.8.5.tgz",
+      "integrity": "sha512-KIHbLJqu73RGr/hnbrO9uBeixNGuvSQjul/jdFvS/KFSIH1hWVd1ng7zOHx+YrEfInLG7q4n6GHQ9cDtxv/P6g==",
+      "license": "MIT",
+      "dependencies": {
+        "object-assign": "^4",
+        "vary": "^1"
+      },
+      "engines": {
+        "node": ">= 0.10"
+      }
+    },
     "node_modules/cpu-features": {
       "version": "0.0.10",
       "resolved": "https://registry.npmjs.org/cpu-features/-/cpu-features-0.0.10.tgz",
@@ -7775,6 +7789,15 @@
         "node": ">=8"
       }
     },
+    "node_modules/object-assign": {
+      "version": "4.1.1",
+      "resolved": "https://registry.npmjs.org/object-assign/-/object-assign-4.1.1.tgz",
+      "integrity": "sha512-rJgTQnkUnH1sFw8yT6VSU3zD3sWmu6sZhIseY8VX+GRu3P6F7Fu+JNDoXfklElbLJSnc3FUQHVe4cU5hj+BcUg==",
+      "license": "MIT",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/object-inspect": {
       "version": "1.13.4",
       "resolved": "https://registry.npmjs.org/object-inspect/-/object-inspect-1.13.4.tgz",
diff --git a/package.json b/package.json
index 03519dbc..67ae1c5b 100644
--- a/package.json
+++ b/package.json
@@ -38,6 +38,7 @@
     "@temporalio/worker": "^1.7.4",
     "@temporalio/workflow": "^1.7.4",
     "@types/pino": "^7.0.4",
+    "cors": "^2.8.5",
     "dotenv": "^16.3.1",
     "drizzle-kit": "^0.31.0",
     "drizzle-orm": "^0.43.1",
diff --git a/src/api/index.ts b/src/api/index.ts
index 87eeaabc..63cca50f 100644
--- a/src/api/index.ts
+++ b/src/api/index.ts
@@ -1,26 +1,34 @@
-//src/api/index.ts
+// src/api/index.ts
 import express from 'express';
+import cors from 'cors';
 import { registerRegistryRoutes } from './registry';
 
-// Create Express application
 const app = express();
 const PORT = process.env.ADMIN_API_PORT || 3009;
 
-// Middleware for parsing JSON
+// Allow CORS from localhost origins
+app.use(cors({
+  origin: [
+    'http://localhost:8080',
+    'http://127.0.0.1:8080',
+    'http://localhost:8081',
+    'http://127.0.0.1:8081',
+  ],
+  methods: ['GET', 'POST', 'PUT', 'DELETE', 'OPTIONS'],
+  allowedHeaders: ['Content-Type', 'Authorization']
+}));
+
 app.use(express.json());
 
-// Register registry routes
 registerRegistryRoutes(app);
 
-// Add a simple health check endpoint
 app.get('/health', (req, res) => {
   res.json({ status: 'ok', timestamp: new Date().toISOString() });
 });
 
-// Start the server
 app.listen(PORT, () => {
   console.log(`Admin API server running at http://localhost:${PORT}`);
   console.log(`Registry available at http://localhost:${PORT}/api/registry`);
 });
 
-export default app;
\ No newline at end of file
+export default app;

From 5f7c082c91abcdca5c2699cde711de925d60e85e Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Sun, 8 Jun 2025 16:05:34 -0700
Subject: [PATCH 02/21] refactor(core): improve JSON Schema conversion and
 enhance type handling

---
 src/core/shared/zod-schema-conversions.ts | 46 ++++++++++-------------
 1 file changed, 19 insertions(+), 27 deletions(-)

diff --git a/src/core/shared/zod-schema-conversions.ts b/src/core/shared/zod-schema-conversions.ts
index a6891745..fa521076 100644
--- a/src/core/shared/zod-schema-conversions.ts
+++ b/src/core/shared/zod-schema-conversions.ts
@@ -1,18 +1,11 @@
-import {z, ZodTypeAny} from 'zod';
+import { z, ZodTypeAny } from 'zod';
 
 /**
  * Converts a Zod schema to a JSON Schema representation
- * Note: This is a simplified version. For a complete implementation,
- * install zod-to-json-schema: npm install zod-to-json-schema
- * 
- * @param schema The Zod schema to convert
- * @param name Optional name for the schema
- * @returns A JSON Schema representation of the Zod schema
  */
 export function zodToJsonSchema(schema: z.ZodTypeAny, name?: string): any {
   if (!schema) return undefined;
 
-  // For objects, extract the shape
   if (schema instanceof z.ZodObject) {
     const shape = schema._def.shape();
     const properties: Record<string, any> = {};
@@ -20,8 +13,6 @@ export function zodToJsonSchema(schema: z.ZodTypeAny, name?: string): any {
 
     for (const [key, value] of Object.entries(shape)) {
       properties[key] = zodTypeToJsonType(value as z.ZodTypeAny);
-
-      // Check if the property is required
       if (!(value instanceof z.ZodOptional)) {
         required.push(key);
       }
@@ -39,13 +30,18 @@ export function zodToJsonSchema(schema: z.ZodTypeAny, name?: string): any {
 }
 
 /**
- * Helper function to convert a Zod type to a JSON Schema type
- * @param zodType The Zod type to convert
- * @returns A JSON Schema type representation
+ * Helper: Convert Zod type to JSON Schema type
  */
 function zodTypeToJsonType(zodType: z.ZodTypeAny): any {
   if (zodType instanceof z.ZodString) {
-    return { type: 'string' };
+    const checks = zodType._def.checks || [];
+    const formatCheck = checks.find((c: any) => c.kind === 'uuid' || c.kind === 'email');
+
+    return {
+      type: 'string',
+      ...(formatCheck?.kind === 'uuid' && { format: 'uuid' }),
+      ...(formatCheck?.kind === 'email' && { format: 'email' }),
+    };
   }
 
   if (zodType instanceof z.ZodNumber) {
@@ -88,14 +84,15 @@ function zodTypeToJsonType(zodType: z.ZodTypeAny): any {
     };
   }
 
-  // Default fallback
-  return { type: 'any' };
+  if (zodType instanceof z.ZodAny) {
+    return {};
+  }
+
+  return {};
 }
 
 /**
- * Helper function to convert a schema to a property array format
- * @param schema The Zod schema to convert
- * @returns An array of property definitions
+ * Convert schema to property list for UI rendering
  */
 export function schemaToProps(schema: z.ZodTypeAny): Array<{
   name: string;
@@ -103,9 +100,7 @@ export function schemaToProps(schema: z.ZodTypeAny): Array<{
   required: boolean;
   description?: string;
 }> {
-  if (!schema || !(schema instanceof z.ZodObject)) {
-    return [];
-  }
+  if (!schema || !(schema instanceof z.ZodObject)) return [];
 
   const jsonSchema = zodToJsonSchema(schema);
   const properties = jsonSchema.properties || {};
@@ -120,16 +115,13 @@ export function schemaToProps(schema: z.ZodTypeAny): Array<{
 }
 
 /**
- * Convert registry metadata items, optionally attaching JSON-Schema.
- *
- * @param items         Array of CommandTypeMeta | EventTypeMeta
- * @param includeSchema Whether to expose payload schemas
+ * Attach JSON Schema to registry metadata
  */
 export function attachSchema<
     T extends { type: string; payloadSchema?: ZodTypeAny }
 >(items: T[], includeSchema: boolean): unknown[] {
   return items.map(({ payloadSchema, ...rest }) => {
-    if (!includeSchema) return rest;                       // strip it
+    if (!includeSchema) return rest;
 
     const schema =
         payloadSchema && typeof payloadSchema === 'object'

From 6f1a78c5a83cd7770376f7abf8a9bf966d8ecec8 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Sun, 8 Jun 2025 20:13:15 -0700
Subject: [PATCH 03/21] feat(setup): add api and test user creation and related
 perms along with a teardown path to setup

---
 package-lock.json                             | 17 ++++-
 package.json                                  |  1 +
 src/tools/setup/flows/eventstore/flow.yaml    | 11 ++-
 .../artifacts/templates/postgres.env_template |  8 ++-
 .../providers/postgres/steps/connection.ts    | 61 +---------------
 .../providers/postgres/steps/envfile.ts       | 72 +++++++++++++++++++
 .../postgres/steps/users.teardown.ts          | 26 +++++++
 .../providers/postgres/steps/users.ts         | 60 ++++++++++++++++
 src/tools/setup/flows/runner.ts               |  1 +
 9 files changed, 191 insertions(+), 66 deletions(-)
 create mode 100644 src/tools/setup/flows/eventstore/providers/postgres/steps/envfile.ts
 create mode 100644 src/tools/setup/flows/eventstore/providers/postgres/steps/users.teardown.ts
 create mode 100644 src/tools/setup/flows/eventstore/providers/postgres/steps/users.ts

diff --git a/package-lock.json b/package-lock.json
index f6e37dfa..8643a457 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -45,6 +45,7 @@
         "@types/prompts": "^2.4.9",
         "@types/uuid": "^9.0.7",
         "commander": "^11.1.0",
+        "diff": "^8.0.2",
         "jest": "^29.7.0",
         "js-yaml": "^4.1.0",
         "minimist": "^1.2.8",
@@ -4881,9 +4882,9 @@
       }
     },
     "node_modules/diff": {
-      "version": "4.0.2",
-      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
-      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
+      "version": "8.0.2",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-8.0.2.tgz",
+      "integrity": "sha512-sSuxWU5j5SR9QQji/o2qMvqRNYRDOcBTgsJ/DeCf4iSN4gW+gNMXM7wFIP+fdXZxoNiAnHUTGjCr+TSWXdRDKg==",
       "dev": true,
       "license": "BSD-3-Clause",
       "engines": {
@@ -10033,6 +10034,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/ts-node/node_modules/diff": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
+      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=0.3.1"
+      }
+    },
     "node_modules/tsconfig": {
       "version": "7.0.0",
       "resolved": "https://registry.npmjs.org/tsconfig/-/tsconfig-7.0.0.tgz",
diff --git a/package.json b/package.json
index 67ae1c5b..73c4cafc 100644
--- a/package.json
+++ b/package.json
@@ -66,6 +66,7 @@
     "@types/prompts": "^2.4.9",
     "@types/uuid": "^9.0.7",
     "commander": "^11.1.0",
+    "diff": "^8.0.2",
     "jest": "^29.7.0",
     "js-yaml": "^4.1.0",
     "minimist": "^1.2.8",
diff --git a/src/tools/setup/flows/eventstore/flow.yaml b/src/tools/setup/flows/eventstore/flow.yaml
index d70e531f..9cb4ec60 100644
--- a/src/tools/setup/flows/eventstore/flow.yaml
+++ b/src/tools/setup/flows/eventstore/flow.yaml
@@ -10,10 +10,17 @@ description: Setup and manage event store infrastructure
 paths:
   initial:
     description: Fresh bootstrap of event store
-    steps: [connection, reset, schema]
+    steps: [connection, users, reset, schema, envfile]
+  users:
+    description: Generate users
+    steps: [connection, users, envfile]
   upgrade:
     description: Apply migrations on existing store
     steps: [connection, schema]
   test:
     description: Run tests on existing store
-    steps: [connection, test]
\ No newline at end of file
+    steps: [connection, test]
+  users.teardown:
+      steps:
+        - connection
+        - users.teardown
diff --git a/src/tools/setup/flows/eventstore/providers/postgres/artifacts/templates/postgres.env_template b/src/tools/setup/flows/eventstore/providers/postgres/artifacts/templates/postgres.env_template
index d126bbe1..ffebae9a 100644
--- a/src/tools/setup/flows/eventstore/providers/postgres/artifacts/templates/postgres.env_template
+++ b/src/tools/setup/flows/eventstore/providers/postgres/artifacts/templates/postgres.env_template
@@ -8,4 +8,10 @@ LOCAL_DB_NAME={{LOCAL_DB_NAME}}
 # Event store settings
 EVENT_STORE_PROVIDER=postgres
 EVENT_STORE_SCHEMA=public
-EVENT_STORE_TABLE_PREFIX=
\ No newline at end of file
+EVENT_STORE_TABLE_PREFIX=
+
+# Database users
+LOCAL_DB_ADMIN_USER={{LOCAL_DB_ADMIN_USER}}
+LOCAL_DB_ADMIN_PASSWORD={{LOCAL_DB_ADMIN_PASSWORD}}
+LOCAL_DB_TEST_USER={{LOCAL_DB_TEST_USER}}
+LOCAL_DB_TEST_PASSWORD={{LOCAL_DB_TEST_PASSWORD}}
diff --git a/src/tools/setup/flows/eventstore/providers/postgres/steps/connection.ts b/src/tools/setup/flows/eventstore/providers/postgres/steps/connection.ts
index c5118f30..4fa6ddeb 100644
--- a/src/tools/setup/flows/eventstore/providers/postgres/steps/connection.ts
+++ b/src/tools/setup/flows/eventstore/providers/postgres/steps/connection.ts
@@ -3,10 +3,8 @@
  * Set up database connection
  */
 import { FlowCtx } from '../../../../../shared/types';
-import { promptText, promptYesNo } from '../../../../../shared/prompt';
+import { promptText } from '../../../../../shared/prompt';
 import { postgresConnectionSchema, PostgresConnection } from '../../../../../shared/validation';
-import fs from 'fs/promises';
-import path from 'node:path';
 import pg from 'pg';
 
 /**
@@ -42,9 +40,6 @@ export default async function step(ctx: FlowCtx): Promise<void> {
   ctx.vars.pool = pool;
   ctx.vars.connection = connection;
 
-  // Generate environment file
-  await generateEnvFile(ctx, connection);
-
   ctx.logger.info('Database connection setup complete');
 }
 
@@ -107,57 +102,3 @@ async function getConnectionParameters(ctx: FlowCtx): Promise<PostgresConnection
   // Validate connection parameters
   return postgresConnectionSchema.parse(connection);
 }
-
-/**
- * Generate environment file from template
- * @param ctx Flow context
- * @param connection Connection parameters
- */
-async function generateEnvFile(ctx: FlowCtx, connection: PostgresConnection): Promise<void> {
-  const templatePath = path.join(ctx.artifactsDir, 'templates', 'postgres.env_template');
-  // Use a different file name for test environment
-  const envPath = process.env.NODE_ENV === 'test' 
-    ? path.join(process.cwd(), '.env_test_generated')
-    : path.join(process.cwd(), '.env.local');
-
-  // Read template
-  const template = await fs.readFile(templatePath, 'utf-8');
-
-  // Replace placeholders
-  const envContent = template
-    .replace('{{LOCAL_DB_HOST}}', connection.host)
-    .replace('{{LOCAL_DB_PORT}}', String(connection.port))
-    .replace('{{LOCAL_DB_USER}}', connection.user)
-    .replace('{{LOCAL_DB_PASSWORD}}', connection.password || '')
-    .replace('{{LOCAL_DB_NAME}}', connection.database);
-
-  // Check if .env.local already exists
-  try {
-    await fs.access(envPath);
-
-    // If --yes flag is set, automatically overwrite
-    // Check both ctx.vars.yes and process.argv for --yes or -Y
-    const hasYesFlag = ctx.vars.yes || process.argv.includes('--yes') || process.argv.includes('-Y');
-
-    if (hasYesFlag) {
-      ctx.logger.info('Automatically overwriting .env.local (--yes flag is set)');
-    } else {
-      // Ask if we should overwrite
-      const overwrite = await promptYesNo(
-        '.env.local already exists. Overwrite?',
-        false
-      );
-
-      if (!overwrite) {
-        ctx.logger.info('Skipping environment file generation');
-        return;
-      }
-    }
-  } catch (error) {
-    // File doesn't exist, continue
-  }
-
-  // Write an environment file
-  await fs.writeFile(envPath, envContent);
-  ctx.logger.info(`Environment file generated at ${envPath}`);
-}
diff --git a/src/tools/setup/flows/eventstore/providers/postgres/steps/envfile.ts b/src/tools/setup/flows/eventstore/providers/postgres/steps/envfile.ts
new file mode 100644
index 00000000..591fbc30
--- /dev/null
+++ b/src/tools/setup/flows/eventstore/providers/postgres/steps/envfile.ts
@@ -0,0 +1,72 @@
+import { FlowCtx } from '../../../../../shared/types';
+import fs from 'fs/promises';
+import path from 'node:path';
+import type { PostgresConnection } from '../../../../../shared/validation';
+import { createTwoFilesPatch } from 'diff';
+import { promptYesNo } from '../../../../../shared/prompt';
+
+/**
+ * Generate .env file from template using collected connection and user data
+ */
+export default async function step(ctx: FlowCtx): Promise<void> {
+  const connection = ctx.vars.connection as PostgresConnection;
+  const dbUsers = ctx.vars.dbUsers as {
+    admin: { user: string; password: string };
+    tester: { user: string; password: string };
+  };
+
+  if (!connection || !dbUsers) {
+    throw new Error('Missing connection or dbUsers in context. Ensure previous steps ran correctly.');
+  }
+
+  const templatePath = path.join(ctx.artifactsDir, 'templates', 'postgres.env_template');
+  const envPath = process.env.NODE_ENV === 'test'
+    ? path.join(process.cwd(), '.env_test_generated')
+    : path.join(process.cwd(), '.env.local');
+
+  const template = await fs.readFile(templatePath, 'utf-8');
+
+  const envContent = template
+    .replace('{{LOCAL_DB_HOST}}', connection.host)
+    .replace('{{LOCAL_DB_PORT}}', String(connection.port))
+    .replace('{{LOCAL_DB_USER}}', connection.user)
+    .replace('{{LOCAL_DB_PASSWORD}}', connection.password || '')
+    .replace('{{LOCAL_DB_NAME}}', connection.database)
+    .replace('{{LOCAL_DB_ADMIN_USER}}', dbUsers.admin.user)
+    .replace('{{LOCAL_DB_ADMIN_PASSWORD}}', dbUsers.admin.password)
+    .replace('{{LOCAL_DB_TEST_USER}}', dbUsers.tester.user)
+    .replace('{{LOCAL_DB_TEST_PASSWORD}}', dbUsers.tester.password);
+
+  let shouldWrite = true;
+  let existingContent = '';
+
+  try {
+    await fs.access(envPath);
+
+    existingContent = await fs.readFile(envPath, 'utf-8');
+    const hasYesFlag = ctx.vars.yes || process.argv.includes('--yes') || process.argv.includes('-Y');
+
+    if (existingContent === envContent) {
+      ctx.logger.info('.env.local already up to date. No changes.');
+      return;
+    }
+
+    if (hasYesFlag) {
+      ctx.logger.info('Overwriting .env.local (--yes flag set)');
+    } else {
+      const diff = createTwoFilesPatch('.env.local', '.env.local (new)', existingContent, envContent, '', '');
+      ctx.logger.raw(`\n${diff}`);
+      shouldWrite = await promptYesNo('.env.local has changes. Overwrite with above?', false);
+      if (!shouldWrite) {
+        ctx.logger.info('Skipping environment file generation');
+        return;
+      }
+    }
+  } catch {
+    // file doesn't exist — proceed
+    ctx.logger.info('.env.local not found, will generate a new one.');
+  }
+
+  await fs.writeFile(envPath, envContent);
+  ctx.logger.info(`Environment file generated at ${envPath}`);
+}
diff --git a/src/tools/setup/flows/eventstore/providers/postgres/steps/users.teardown.ts b/src/tools/setup/flows/eventstore/providers/postgres/steps/users.teardown.ts
new file mode 100644
index 00000000..b9de441a
--- /dev/null
+++ b/src/tools/setup/flows/eventstore/providers/postgres/steps/users.teardown.ts
@@ -0,0 +1,26 @@
+import { FlowCtx } from '../../../../../shared/types';
+import pg from 'pg';
+
+/**
+ * Teardown: remove DB users and their privileges
+ */
+export default async function step(ctx: FlowCtx): Promise<void> {
+  const pool = ctx.vars.pool as pg.Pool;
+  if (!pool) throw new Error('Missing database pool in context');
+
+  const users = ['intent_admin_api', 'intent_test_user'];
+
+  for (const role of users) {
+    ctx.logger.info(`Cleaning up user: ${role}`);
+
+    try {
+      await pool.query(`REASSIGN OWNED BY ${role} TO postgres`);
+      await pool.query(`DROP OWNED BY ${role}`);
+      await pool.query(`DELETE FROM pg_default_acl WHERE defaclrole = $1::regrole`, [role]);
+      await pool.query(`DROP ROLE IF EXISTS ${role}`);
+      ctx.logger.info(`Dropped role: ${role}`);
+    } catch (err) {
+      ctx.logger.warn(`Error cleaning up ${role}: ${(err as Error).message}`);
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/tools/setup/flows/eventstore/providers/postgres/steps/users.ts b/src/tools/setup/flows/eventstore/providers/postgres/steps/users.ts
new file mode 100644
index 00000000..9c5322df
--- /dev/null
+++ b/src/tools/setup/flows/eventstore/providers/postgres/steps/users.ts
@@ -0,0 +1,60 @@
+import { FlowCtx } from '../../../../../shared/types';
+import { promptText, promptPassword } from '../../../../../shared/prompt';
+import pg from 'pg';
+
+/**
+ * Create default users for database
+ */
+export default async function step(ctx: FlowCtx): Promise<void> {
+  const pool = ctx.vars.pool as pg.Pool;
+  if (!pool) throw new Error('Missing database pool in context');
+
+  const existingRoles = await pool.query(`SELECT rolname FROM pg_roles`);
+  const roleNames = new Set(existingRoles.rows.map(r => r.rolname));
+
+  const adminExists = roleNames.has('intent_admin_api');
+  const testerExists = roleNames.has('intent_test_user');
+
+  if (adminExists && testerExists) {
+    ctx.logger.info('Both DB users already exist, skipping user creation');
+    ctx.vars.dbUsers = {
+      admin: {
+        user: process.env.LOCAL_DB_ADMIN_USER || 'intent_admin_api',
+        password: process.env.LOCAL_DB_ADMIN_PASSWORD || 'adminpassword'
+      },
+      tester: {
+        user: process.env.LOCAL_DB_TEST_USER || 'intent_test_user',
+        password: process.env.LOCAL_DB_TEST_PASSWORD || 'testpassword'
+      }
+    };
+    return;
+  }
+
+  ctx.logger.info('Creating DB users...');
+
+  const adminUser = await promptText('Admin username:', 'intent_admin_api');
+  const adminPass = await promptPassword('Admin password:', () => true);
+  const testerUser = await promptText('Tester username:', 'intent_test_user');
+  const testerPass = await promptPassword('Tester password:', () => true);
+
+  await pool.query(`CREATE ROLE ${adminUser} WITH LOGIN PASSWORD '${adminPass}'`,);
+  await pool.query(`CREATE ROLE ${testerUser} WITH LOGIN PASSWORD '${testerPass}'`);
+
+  // Permissions for admin
+  await pool.query(`GRANT USAGE ON SCHEMA public, infra TO ${adminUser}`);
+  await pool.query(`GRANT SELECT, INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA public, infra TO ${adminUser}`);
+  await pool.query(`ALTER DEFAULT PRIVILEGES IN SCHEMA public, infra GRANT SELECT, INSERT, UPDATE, DELETE ON TABLES TO ${adminUser}`);
+
+  // Permissions for tester
+  await pool.query(`GRANT USAGE ON SCHEMA public TO ${testerUser}`);
+  await pool.query(`GRANT SELECT ON ALL TABLES IN SCHEMA public TO ${testerUser}`);
+  await pool.query(`ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT ON TABLES TO ${testerUser}`);
+
+  // Persist for .env generation
+  ctx.vars.dbUsers = {
+    admin: { user: adminUser, password: adminPass },
+    tester: { user: testerUser, password: testerPass }
+  };
+
+  ctx.logger.info(`Created users: ${adminUser}, ${testerUser}`);
+}
diff --git a/src/tools/setup/flows/runner.ts b/src/tools/setup/flows/runner.ts
index 1e3acf7f..539f5674 100644
--- a/src/tools/setup/flows/runner.ts
+++ b/src/tools/setup/flows/runner.ts
@@ -81,6 +81,7 @@ export async function runFlowWithErrorHandling(
     return 0;
   } catch (error) {
     console.error(`Error running flow ${flowName}: ${(error as Error).message}`);
+    console.error((error as Error).stack);
     return 1;
   }
 }

From e53819c463a178cbcb0e0d92565e1c0ec7085dd1 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Sun, 8 Jun 2025 21:03:39 -0700
Subject: [PATCH 04/21] feat(api): initialize database connection and implement
 graceful shutdown, extract routes into directory

---
 package-lock.json          | 11 ++++++
 package.json               |  1 +
 src/api/db.ts              | 42 ++++++++++++++++++++
 src/api/index.ts           | 62 ++++++++++++++++++++++++++----
 src/api/registry.ts        | 71 ----------------------------------
 src/api/routes/health.ts   | 26 +++++++++++++
 src/api/routes/index.ts    | 17 ++++++++
 src/api/routes/registry.ts | 79 ++++++++++++++++++++++++++++++++++++++
 8 files changed, 230 insertions(+), 79 deletions(-)
 create mode 100644 src/api/db.ts
 delete mode 100644 src/api/registry.ts
 create mode 100644 src/api/routes/health.ts
 create mode 100644 src/api/routes/index.ts
 create mode 100644 src/api/routes/registry.ts

diff --git a/package-lock.json b/package-lock.json
index 8643a457..fbd3e9ae 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -36,6 +36,7 @@
         "@opentelemetry/context-async-hooks": "^2.0.1",
         "@opentelemetry/sdk-trace-node": "^2.0.1",
         "@testcontainers/postgresql": "^10.28.0",
+        "@types/cors": "^2.8.19",
         "@types/express": "^4.17.21",
         "@types/jest": "^29.5.10",
         "@types/js-yaml": "^4.0.9",
@@ -2869,6 +2870,16 @@
         "@types/node": "*"
       }
     },
+    "node_modules/@types/cors": {
+      "version": "2.8.19",
+      "resolved": "https://registry.npmjs.org/@types/cors/-/cors-2.8.19.tgz",
+      "integrity": "sha512-mFNylyeyqN93lfe/9CSxOGREz8cpzAhH+E93xJ4xWQf62V8sQ/24reV2nyzUWM6H6Xji+GGHpkbLe7pVoUEskg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@types/node": "*"
+      }
+    },
     "node_modules/@types/docker-modem": {
       "version": "3.0.6",
       "resolved": "https://registry.npmjs.org/@types/docker-modem/-/docker-modem-3.0.6.tgz",
diff --git a/package.json b/package.json
index 73c4cafc..96369b63 100644
--- a/package.json
+++ b/package.json
@@ -57,6 +57,7 @@
     "@opentelemetry/context-async-hooks": "^2.0.1",
     "@opentelemetry/sdk-trace-node": "^2.0.1",
     "@testcontainers/postgresql": "^10.28.0",
+    "@types/cors": "^2.8.19",
     "@types/express": "^4.17.21",
     "@types/jest": "^29.5.10",
     "@types/js-yaml": "^4.0.9",
diff --git a/src/api/db.ts b/src/api/db.ts
new file mode 100644
index 00000000..0e062e4b
--- /dev/null
+++ b/src/api/db.ts
@@ -0,0 +1,42 @@
+import { Pool } from 'pg';
+import dotenv from 'dotenv';
+import { stdLogger } from '../infra/logger/stdLogger';
+
+// Load environment variables from .env file
+dotenv.config();
+
+// Create a new pool using environment variables
+const pool = new Pool({
+  host: process.env.LOCAL_DB_HOST,
+  user: process.env.LOCAL_DB_ADMIN_USER,
+  password: process.env.LOCAL_DB_ADMIN_PASSWORD,
+  database: process.env.LOCAL_DB_NAME,
+  // Default values for other connection parameters
+  port: 5432,
+  max: 20, // Maximum number of clients in the pool
+  idleTimeoutMillis: 30000, // How long a client is allowed to remain idle before being closed
+  connectionTimeoutMillis: 2000, // How long to wait for a connection to become available
+});
+
+// The pool will emit an error on behalf of any idle clients
+// if a backend error or network partition happens
+pool.on('error', (err) => {
+  stdLogger.error('Unexpected error on idle client', { error: err });
+  process.exit(-1);
+});
+
+// Function to test the database connection
+export const testConnection = async () => {
+  const client = await pool.connect();
+  try {
+    const result = await client.query('SELECT NOW()');
+    return { connected: true, timestamp: result.rows[0].now };
+  } catch (error) {
+    stdLogger.error('Database connection error:', { error });
+    return { connected: false, error: error instanceof Error ? error.message : String(error) };
+  } finally {
+    client.release();
+  }
+};
+
+export default pool;
diff --git a/src/api/index.ts b/src/api/index.ts
index 63cca50f..4d9f661a 100644
--- a/src/api/index.ts
+++ b/src/api/index.ts
@@ -1,7 +1,9 @@
 // src/api/index.ts
 import express from 'express';
 import cors from 'cors';
-import { registerRegistryRoutes } from './registry';
+import pool, { testConnection } from './db';
+import { stdLogger } from '../infra/logger/stdLogger';
+import { registerRoutes } from './routes';
 
 const app = express();
 const PORT = process.env.ADMIN_API_PORT || 3009;
@@ -20,15 +22,59 @@ app.use(cors({
 
 app.use(express.json());
 
-registerRegistryRoutes(app);
+// Register all routes
+registerRoutes(app);
 
-app.get('/health', (req, res) => {
-  res.json({ status: 'ok', timestamp: new Date().toISOString() });
-});
+// Initialize database connection
+const initDb = async () => {
+  try {
+    const result = await testConnection();
+    if (result.connected) {
+      stdLogger.info(`Database connection established: ${result.timestamp}`);
+    } else {
+      stdLogger.error(`Failed to connect to database: ${result.error}`);
+    }
+  } catch (error) {
+    stdLogger.error('Database initialization error:', { error });
+  }
+};
+
+// Start the server
+const server = app.listen(PORT, async () => {
+  stdLogger.info(`Admin API server running at http://localhost:${PORT}`);
+  stdLogger.info(`Registry available at http://localhost:${PORT}/api/registry`);
 
-app.listen(PORT, () => {
-  console.log(`Admin API server running at http://localhost:${PORT}`);
-  console.log(`Registry available at http://localhost:${PORT}/api/registry`);
+  // Initialize database connection after server starts
+  await initDb();
 });
 
+// Implement graceful shutdown
+const gracefulShutdown = async (signal: string) => {
+  stdLogger.info(`${signal} received. Starting graceful shutdown...`);
+
+  // Close the server first to stop accepting new connections
+  server.close(() => {
+    stdLogger.info('HTTP server closed');
+
+    // Then close the database pool
+    pool.end().then(() => {
+      stdLogger.info('Database connections closed');
+      process.exit(0);
+    }).catch(err => {
+      stdLogger.error('Error closing database connections:', { error: err });
+      process.exit(1);
+    });
+  });
+
+  // Force shutdown after 10 seconds if graceful shutdown fails
+  setTimeout(() => {
+    stdLogger.error('Graceful shutdown timed out, forcing exit');
+    process.exit(1);
+  }, 10000);
+};
+
+// Listen for termination signals
+process.on('SIGTERM', () => gracefulShutdown('SIGTERM'));
+process.on('SIGINT', () => gracefulShutdown('SIGINT'));
+
 export default app;
diff --git a/src/api/registry.ts b/src/api/registry.ts
deleted file mode 100644
index fbe91fcb..00000000
--- a/src/api/registry.ts
+++ /dev/null
@@ -1,71 +0,0 @@
-import { DomainRegistry } from '../core/registry';
-import initializeCore  from '../core/initialize';
-import { attachSchema } from '../core/shared/zod-schema-conversions';
-
-export function registerRegistryRoutes(app: any) {
-  initializeCore();
-
-  // -- init
-  const filterByDomain = (arr: any[], domain?: string) =>
-      domain ? arr.filter(i => i.domain === domain) : arr;
-
-  // -- registry routes
-  app.get('/api/registry', (req: any, res: any) => {
-    const includeSchema = req.query.includeSchema === 'true';
-
-    const commands = attachSchema(
-        Object.values(DomainRegistry.commandTypes()),
-        includeSchema,
-    );
-
-    const events = attachSchema(
-        Object.values(DomainRegistry.eventTypes()),
-        includeSchema,
-    );
-
-    res.json({
-      domains:     DomainRegistry.domains(),
-      aggregates:  Object.keys(DomainRegistry.aggregates()),
-      sagas:       Object.keys(DomainRegistry.sagas()),
-      commandTypes: commands,
-      eventTypes:   events,
-    });
-  });
-
-  // -- passthrough for registry metadata
-  app.get('/api/registry/commands', (req: any, res: any) => {
-    const includeSchema = req.query.includeSchema === 'true';
-    const domain        = req.query.domain as string | undefined;
-
-    const data = filterByDomain(
-        Object.values(DomainRegistry.commandTypes()),
-        domain,
-    );
-
-    res.json(attachSchema(data, includeSchema));
-  });
-
-  app.get('/api/registry/events', (req: any, res: any) => {
-    const includeSchema = req.query.includeSchema === 'true';
-    const domain        = req.query.domain as string | undefined;
-
-    const data = filterByDomain(
-        Object.values(DomainRegistry.eventTypes()),
-        domain,
-    );
-
-    res.json(attachSchema(data, includeSchema));
-  });
-
-  app.get('/api/registry/aggregates', (_req: any, res: any) =>
-      res.json(Object.keys(DomainRegistry.aggregates())),
-  );
-  app.get('/api/registry/sagas', (_req: any, res: any) =>
-      res.json(Object.keys(DomainRegistry.sagas())),
-  );
-  app.get('/api/registry/domains', (_req: any, res: any) =>
-      res.json(DomainRegistry.domains()),
-  );
-}
-
-export default registerRegistryRoutes;
diff --git a/src/api/routes/health.ts b/src/api/routes/health.ts
new file mode 100644
index 00000000..b632d457
--- /dev/null
+++ b/src/api/routes/health.ts
@@ -0,0 +1,26 @@
+import { Router } from 'express';
+import { testConnection } from '../db';
+import { stdLogger } from '../../infra/logger/stdLogger';
+
+const router = Router();
+
+router.get('/health', async (req, res) => {
+  try {
+    const dbStatus = await testConnection();
+
+    res.json({
+      status: 'ok',
+      timestamp: new Date().toISOString(),
+      database: dbStatus
+    });
+  } catch (error) {
+    stdLogger.error('Health check error:', { error });
+    res.status(500).json({
+      status: 'error',
+      timestamp: new Date().toISOString(),
+      error: error instanceof Error ? error.message : String(error)
+    });
+  }
+});
+
+export default router;
\ No newline at end of file
diff --git a/src/api/routes/index.ts b/src/api/routes/index.ts
new file mode 100644
index 00000000..cf58f7c7
--- /dev/null
+++ b/src/api/routes/index.ts
@@ -0,0 +1,17 @@
+import { Express } from 'express';
+import healthRoutes from './health';
+import registryRoutes from './registry';
+
+/**
+ * Register all API routes
+ * @param app Express application instance
+ */
+export const registerRoutes = (app: Express): void => {
+  // Register health routes
+  app.use(healthRoutes);
+  
+  // Register registry routes
+  app.use(registryRoutes);
+};
+
+export default registerRoutes;
\ No newline at end of file
diff --git a/src/api/routes/registry.ts b/src/api/routes/registry.ts
new file mode 100644
index 00000000..b2cde6e7
--- /dev/null
+++ b/src/api/routes/registry.ts
@@ -0,0 +1,79 @@
+import { Router } from 'express';
+import { DomainRegistry } from '../../core/registry';
+import initializeCore from '../../core/initialize';
+import { attachSchema } from '../../core/shared/zod-schema-conversions';
+
+const router = Router();
+
+// Initialize core
+initializeCore();
+
+// Helper function to filter by domain
+const filterByDomain = (arr: any[], domain?: string) =>
+  domain ? arr.filter(i => i.domain === domain) : arr;
+
+// Main registry endpoint
+router.get('/api/registry', (req, res) => {
+  const includeSchema = req.query.includeSchema === 'true';
+
+  const commands = attachSchema(
+    Object.values(DomainRegistry.commandTypes()),
+    includeSchema,
+  );
+
+  const events = attachSchema(
+    Object.values(DomainRegistry.eventTypes()),
+    includeSchema,
+  );
+
+  res.json({
+    domains: DomainRegistry.domains(),
+    aggregates: Object.keys(DomainRegistry.aggregates()),
+    sagas: Object.keys(DomainRegistry.sagas()),
+    commandTypes: commands,
+    eventTypes: events,
+  });
+});
+
+// Commands endpoint
+router.get('/api/registry/commands', (req, res) => {
+  const includeSchema = req.query.includeSchema === 'true';
+  const domain = req.query.domain as string | undefined;
+
+  const data = filterByDomain(
+    Object.values(DomainRegistry.commandTypes()),
+    domain,
+  );
+
+  res.json(attachSchema(data, includeSchema));
+});
+
+// Events endpoint
+router.get('/api/registry/events', (req, res) => {
+  const includeSchema = req.query.includeSchema === 'true';
+  const domain = req.query.domain as string | undefined;
+
+  const data = filterByDomain(
+    Object.values(DomainRegistry.eventTypes()),
+    domain,
+  );
+
+  res.json(attachSchema(data, includeSchema));
+});
+
+// Aggregates endpoint
+router.get('/api/registry/aggregates', (_req, res) =>
+  res.json(Object.keys(DomainRegistry.aggregates())),
+);
+
+// Sagas endpoint
+router.get('/api/registry/sagas', (_req, res) =>
+  res.json(Object.keys(DomainRegistry.sagas())),
+);
+
+// Domains endpoint
+router.get('/api/registry/domains', (_req, res) =>
+  res.json(DomainRegistry.domains()),
+);
+
+export default router;
\ No newline at end of file

From 5a6a343dff8e578f0cb6501bf0de08749316b497 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Sun, 8 Jun 2025 21:32:45 -0700
Subject: [PATCH 05/21] feat(api): add metrics routes and access logging
 middleware

---
 src/api/middlewares/accessLog.ts | 28 +++++++++++++++
 src/api/routes/index.ts          | 12 +++++--
 src/api/routes/metrics.ts        | 58 ++++++++++++++++++++++++++++++++
 3 files changed, 96 insertions(+), 2 deletions(-)
 create mode 100644 src/api/middlewares/accessLog.ts
 create mode 100644 src/api/routes/metrics.ts

diff --git a/src/api/middlewares/accessLog.ts b/src/api/middlewares/accessLog.ts
new file mode 100644
index 00000000..320e27e6
--- /dev/null
+++ b/src/api/middlewares/accessLog.ts
@@ -0,0 +1,28 @@
+import { Request, Response, NextFunction } from 'express';
+import { stdLogger } from '../../infra/logger/stdLogger';
+
+/**
+ * Access logging middleware
+ * Logs information about incoming requests at info level
+ */
+export const accessLogMiddleware = (req: Request, res: Response, next: NextFunction): void => {
+  const startTime = Date.now();
+
+  // Log request details when the response is finished
+  res.on('finish', () => {
+    const duration = Date.now() - startTime;
+    stdLogger.info('API Request', {
+      operation: 'middlewares/accessLog.ts:accessLogMiddleware',
+      method: req.method,
+      path: req.originalUrl || req.url,
+      statusCode: res.statusCode,
+      duration: `${duration}ms`,
+      ip: req.ip || req.socket.remoteAddress,
+      userAgent: req.get('User-Agent')
+    });
+  });
+
+  next();
+};
+
+export default accessLogMiddleware;
\ No newline at end of file
diff --git a/src/api/routes/index.ts b/src/api/routes/index.ts
index cf58f7c7..a8cffcce 100644
--- a/src/api/routes/index.ts
+++ b/src/api/routes/index.ts
@@ -1,17 +1,25 @@
 import { Express } from 'express';
 import healthRoutes from './health';
 import registryRoutes from './registry';
+import metricsRoutes from './metrics';
+import accessLogMiddleware from '../middlewares/accessLog';
 
 /**
  * Register all API routes
  * @param app Express application instance
  */
 export const registerRoutes = (app: Express): void => {
+  // Register access logging middleware
+  app.use(accessLogMiddleware);
+
   // Register health routes
   app.use(healthRoutes);
-  
+
   // Register registry routes
   app.use(registryRoutes);
+
+  // Register metrics routes
+  app.use(metricsRoutes);
 };
 
-export default registerRoutes;
\ No newline at end of file
+export default registerRoutes;
diff --git a/src/api/routes/metrics.ts b/src/api/routes/metrics.ts
new file mode 100644
index 00000000..00db7c2d
--- /dev/null
+++ b/src/api/routes/metrics.ts
@@ -0,0 +1,58 @@
+import { Router } from 'express';
+import pool, {testConnection} from '../db';
+import { stdLogger } from '../../infra/logger/stdLogger';
+
+const router = Router();
+
+router.get('/api/metrics', async (req, res) => {
+  try {
+    const client = await pool.connect();
+    
+    try {
+      // Get total number of rows in infra.commands
+      const commandsResult = await client.query('SELECT COUNT(*) FROM infra.commands');
+      const commands = parseInt(commandsResult.rows[0].count);
+      
+      // Get total number of rows in infra.events
+      const eventsResult = await client.query('SELECT COUNT(*) FROM infra.events');
+      const events = parseInt(eventsResult.rows[0].count);
+      const totalEvents = events; // Same as events
+      
+      // Get total number of rows in infra.aggregates
+      const aggregatesResult = await client.query('SELECT COUNT(*) FROM infra.aggregates');
+      const aggregates = parseInt(aggregatesResult.rows[0].count);
+      
+      // Calculate traces (commands + events)
+      const traces = commands + events;
+      
+      // Get total projections (all rows in all tables in public schema)
+      const projectionsResult = await client.query(`
+        SELECT SUM(n_live_tup) as total
+        FROM pg_stat_user_tables
+        WHERE schemaname = 'public'
+      `);
+      const projections = parseInt(projectionsResult.rows[0].total) || 0;
+      
+      const health = await testConnection() && 1;
+      
+      res.json({
+        commands,
+        events,
+        totalEvents,
+        traces,
+        aggregates,
+        projections,
+        health
+      });
+    } finally {
+      client.release();
+    }
+  } catch (error) {
+    stdLogger.error('Metrics endpoint error:', { error });
+    res.status(500).json({
+      error: error instanceof Error ? error.message : String(error)
+    });
+  }
+});
+
+export default router;
\ No newline at end of file

From 62f862be53f9d0d3f2fff61b7a625890916b3d5e Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Sun, 8 Jun 2025 21:54:45 -0700
Subject: [PATCH 06/21] feat(api): wire commands api

---
 devex-ui/src/components/CommandIssuer.tsx |  1 +
 devex-ui/src/components/Header.tsx        |  2 +-
 src/api/routes/commands.ts                | 44 +++++++++++++++++++++++
 src/api/routes/index.ts                   |  4 +++
 4 files changed, 50 insertions(+), 1 deletion(-)
 create mode 100644 src/api/routes/commands.ts

diff --git a/devex-ui/src/components/CommandIssuer.tsx b/devex-ui/src/components/CommandIssuer.tsx
index a82cb065..6ddf5b64 100644
--- a/devex-ui/src/components/CommandIssuer.tsx
+++ b/devex-ui/src/components/CommandIssuer.tsx
@@ -495,6 +495,7 @@ export const CommandIssuer = () => {
                         })}
                        </span>
                       }
+                      <span>x{cmd.createdAt}x</span>
                       <span className="text-slate-400 font-mono truncate">{cmd.id}</span>
                       <span className="text-slate-200 truncate">{cmd.type}</span>
                     </div>
diff --git a/devex-ui/src/components/Header.tsx b/devex-ui/src/components/Header.tsx
index 602593ac..1c7fa5cf 100644
--- a/devex-ui/src/components/Header.tsx
+++ b/devex-ui/src/components/Header.tsx
@@ -13,7 +13,7 @@ import { useAppCtx } from '@/app/AppProvider';
 import { isMock, apiMode } from '@/config/apiMode';
 import { Logo } from './Logo';
 
-const tenants = ['tenant-1', 'tenant-2', 'tenant-3'];
+const tenants = ['tenant-1', 'tenant-2', 'tenant-3', '0af03580-98d5-4884-96e4-e75168d8b887'];
 const roles = ['admin', 'user', 'viewer'];
 
 export const Header = () => {
diff --git a/src/api/routes/commands.ts b/src/api/routes/commands.ts
new file mode 100644
index 00000000..4a0f1d0a
--- /dev/null
+++ b/src/api/routes/commands.ts
@@ -0,0 +1,44 @@
+import { Router } from 'express';
+import pool from '../db';
+import { stdLogger } from '../../infra/logger/stdLogger';
+
+const router = Router();
+
+router.get('/api/commands', async (req, res) => {
+  try {
+    // Get query parameters
+    const tenantId = req.query.tenant_id as string;
+    const limit = req.query.limit ? Math.min(parseInt(req.query.limit as string), 1000) : 10;
+
+    // Validate tenant_id
+    if (!tenantId) {
+      return res.status(400).json({
+        error: 'tenant_id is required'
+      });
+    }
+
+    const client = await pool.connect();
+    
+    try {
+      // Query commands from database
+      const result = await client.query(
+        `SELECT *,created_at as "createdAt", "result" as "response" FROM infra.commands 
+         WHERE tenant_id = $1 
+         ORDER BY created_at DESC 
+         LIMIT $2`,
+        [tenantId, limit]
+      );
+      
+      res.json(result.rows);
+    } finally {
+      client.release();
+    }
+  } catch (error) {
+    stdLogger.error('Commands endpoint error:', { error });
+    res.status(500).json({
+      error: error instanceof Error ? error.message : String(error)
+    });
+  }
+});
+
+export default router;
\ No newline at end of file
diff --git a/src/api/routes/index.ts b/src/api/routes/index.ts
index a8cffcce..05d25d52 100644
--- a/src/api/routes/index.ts
+++ b/src/api/routes/index.ts
@@ -2,6 +2,7 @@ import { Express } from 'express';
 import healthRoutes from './health';
 import registryRoutes from './registry';
 import metricsRoutes from './metrics';
+import commandsRoutes from './commands';
 import accessLogMiddleware from '../middlewares/accessLog';
 
 /**
@@ -20,6 +21,9 @@ export const registerRoutes = (app: Express): void => {
 
   // Register metrics routes
   app.use(metricsRoutes);
+
+  // Register commands routes
+  app.use(commandsRoutes);
 };
 
 export default registerRoutes;

From 3f899c90bda698d3b818d5820a4418a3890ef7eb Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Mon, 9 Jun 2025 18:12:38 -0700
Subject: [PATCH 07/21] feat(api): add command scheduling, noted improvements
 for devx in command schema contracts and singleton logging example

src/core/system/payload-schemas.ts: Added aggregateId and aggregateType to payload schemas for stricter contract alignment.
devex-ui/src/components/CommandIssuer.tsx: Removed unused timestamp display for cleaner UI.
src/api/routes/commands.ts: Introduced a POST endpoint for scheduling commands with validation, unique ID assignment, and logging improvements.
src/infra/temporal/temporal-scheduler.ts: Added warning log for unsupported commands in the scheduler for better debugging.
---
 devex-ui/src/components/CommandIssuer.tsx |   1 -
 src/api/routes/commands.ts                | 107 +++++++++++++++++++++-
 src/core/system/payload-schemas.ts        |  15 ++-
 src/infra/temporal/temporal-scheduler.ts  |   1 +
 4 files changed, 118 insertions(+), 6 deletions(-)

diff --git a/devex-ui/src/components/CommandIssuer.tsx b/devex-ui/src/components/CommandIssuer.tsx
index 6ddf5b64..a82cb065 100644
--- a/devex-ui/src/components/CommandIssuer.tsx
+++ b/devex-ui/src/components/CommandIssuer.tsx
@@ -495,7 +495,6 @@ export const CommandIssuer = () => {
                         })}
                        </span>
                       }
-                      <span>x{cmd.createdAt}x</span>
                       <span className="text-slate-400 font-mono truncate">{cmd.id}</span>
                       <span className="text-slate-200 truncate">{cmd.type}</span>
                     </div>
diff --git a/src/api/routes/commands.ts b/src/api/routes/commands.ts
index 4a0f1d0a..a054ffb8 100644
--- a/src/api/routes/commands.ts
+++ b/src/api/routes/commands.ts
@@ -1,6 +1,12 @@
 import { Router } from 'express';
 import pool from '../db';
-import { stdLogger } from '../../infra/logger/stdLogger';
+import {setLoggerAccessor, log} from '../../core/logger';
+import {stdLogger} from '../../infra/logger/stdLogger';
+import { TemporalScheduler } from '../../infra/temporal/temporal-scheduler';
+
+
+setLoggerAccessor(() => stdLogger);
+const logger = log();
 
 const router = Router();
 
@@ -18,7 +24,7 @@ router.get('/api/commands', async (req, res) => {
     }
 
     const client = await pool.connect();
-    
+
     try {
       // Query commands from database
       const result = await client.query(
@@ -28,7 +34,7 @@ router.get('/api/commands', async (req, res) => {
          LIMIT $2`,
         [tenantId, limit]
       );
-      
+
       res.json(result.rows);
     } finally {
       client.release();
@@ -41,4 +47,97 @@ router.get('/api/commands', async (req, res) => {
   }
 });
 
-export default router;
\ No newline at end of file
+// POST endpoint for submitting commands
+router.post('/api/commands', async (req, res) => {
+  try {
+    const command = req.body;
+
+    logger?.info('Received command submission', {
+      operation: 'routes/commands.ts:postCommand',
+      commandType: command?.type,
+      tenantId: command?.tenant_id
+    });
+
+    // Basic validation
+    if (!command || !command.type || !command.tenant_id || !command.payload) {
+      logger?.warn('Invalid command format', {
+        operation: 'routes/commands.ts:postCommand',
+        commandType: command?.type,
+        tenantId: command?.tenant_id,
+        missingFields: [
+          !command ? 'command' : null,
+          command && !command.type ? 'type' : null,
+          command && !command.tenant_id ? 'tenant_id' : null,
+          command && !command.payload ? 'payload' : null
+        ].filter(Boolean)
+      });
+
+      return res.status(400).json({
+        status: 'fail',
+        error: 'Invalid command format. Required fields: type, tenant_id, payload'
+      });
+    }
+
+    // Ensure command has an ID
+    if (!command.id) {
+      command.id = require('crypto').randomUUID();
+    }
+
+    // Set initial status to pending if not provided
+    if (!command.status) {
+      command.status = 'pending';
+    }
+
+    // Create scheduler instance
+    const scheduler = await TemporalScheduler.create();
+
+    try {
+      // Schedule the command
+      console.log(command);
+      await scheduler.schedule(command);
+
+      // Log success
+      logger?.info('Command scheduled successfully', {
+        operation: 'routes/commands.ts:postCommand',
+        commandId: command.id,
+        commandType: command.type,
+        tenantId: command.tenant_id
+      });
+
+      // Return success response
+      res.json({
+        status: 'success',
+        events: [] // The actual events will be generated by the workflow
+      });
+    } catch (error) {
+      // Log error
+      logger?.error('Failed to schedule command', {
+        operation: 'routes/commands.ts:postCommand',
+        commandId: command.id,
+        commandType: command.type,
+        tenantId: command.tenant_id,
+        error
+      });
+
+      // Return error response
+      res.status(500).json({
+        status: 'fail',
+        error: error instanceof Error ? error.message : String(error)
+      });
+    } finally {
+      // Close the scheduler
+      await scheduler.close();
+    }
+  } catch (error) {
+    logger?.error('Command submission error:', {
+      operation: 'routes/commands.ts:postCommand',
+      error 
+    });
+    res.status(500).json({
+      status: 'fail',
+      error: error instanceof Error ? error.message : String(error)
+    });
+  }
+});
+
+export default router;
diff --git a/src/core/system/payload-schemas.ts b/src/core/system/payload-schemas.ts
index 1a677397..10ced401 100644
--- a/src/core/system/payload-schemas.ts
+++ b/src/core/system/payload-schemas.ts
@@ -5,16 +5,29 @@ import { SystemCommandType, SystemEventType } from './contracts';
 // -- commands
 
 export const LogMessagePayloadSchema = z.object({
+  aggregateId: z.string(), // todo id column wiring (testId = aggregateId), shouldnt bleed into contracts
+  aggregateType: z.string(), // todo workflow router - cmd handler should be able to lookup via registry
   message: z.string(),
-  systemId: z.string().uuid().optional(),
+  systemId: z.string().uuid().optional(), // todo singleton ids = validation trouble. see aggregate code for the ='system' hack
 });
 export type LogMessagePayload = z.infer<typeof LogMessagePayloadSchema>;
 
 export const SimulateFailurePayloadSchema = z.object({
+  aggregateId: z.string(),
+  aggregateType: z.string(),
   systemId: z.string().uuid().optional(),
 });
 export type SimulateFailurePayload = z.infer<typeof SimulateFailurePayloadSchema>;
 
+//todo rest are NOT DEVX compatible / reflect reality re aggregateType and Id in payloads. need to decide:
+// - before handler, caller figures out aggregate type and prefill
+//    - options: command-bus, scheduler
+//    - good: easy wiring
+//    - bad: implicit / can look like magic
+// - Define shared payload
+//     - good: explicit
+//     - bad: CMDs can be cross cutting aggregates, although rare and can be handled with override exceptions
+
 export const EmitMultipleEventsPayloadSchema = z.object({
   count: z.number(),
   systemId: z.string().uuid().optional(),
diff --git a/src/infra/temporal/temporal-scheduler.ts b/src/infra/temporal/temporal-scheduler.ts
index d68740aa..f3765449 100644
--- a/src/infra/temporal/temporal-scheduler.ts
+++ b/src/infra/temporal/temporal-scheduler.ts
@@ -63,6 +63,7 @@ export class TemporalScheduler implements JobSchedulerPort, EventPublisherPort {
                 logger?.error('Failed to schedule command', { error: e });
             }
         } else {
+            // @ts-ignore
             logger?.warn('No router supports command');
         }
     }

From 3c42353d4247fbf07166a45763b325ce7ae28d98 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Mon, 9 Jun 2025 22:37:56 -0700
Subject: [PATCH 08/21] feat(core): add aggregate routing support and lint tool

src/tools/lint-payloads/index.ts: Introduced a lint tool to detect missing `aggregateRouting` in registered commands.
src/core/system/register.ts: Added `aggregateRouting` metadata to system commands for consistent aggregate handling.
src/api/routes/commands.ts: Updated scheduling response to return router results.
src/core/registry.ts: Extended `CommandTypeMeta` with `aggregateRouting` for routing declarative metadata.
src/infra/temporal/workflow-router.ts: Integrated `aggregateRouting` logic into command handling for workflows.
.github/workflows/core-linter.yml: Added GitHub action for `core-lint` validation in PRs.
src/core/system/payload-schemas.ts: Removed redundant fields (`aggregateId`, `aggregateType`) from payload schemas.
README.md: Added status badge for `core-linter.yml`.
devex-ui/src/components/Header.tsx: Updated roles list to reflect new role categories.
---
 .github/workflows/core-linter.yml        | 26 ++++++++++
 ADRs/021-core-aggregate-routing.md       | 63 ++++++++++++++++++++++++
 README.md                                |  1 +
 devex-ui/src/components/Header.tsx       |  2 +-
 package.json                             |  1 +
 src/api/middlewares/accessLog.ts         | 18 +++----
 src/api/routes/commands.ts               |  7 +--
 src/core/ports.ts                        |  3 +-
 src/core/registry.ts                     |  6 ++-
 src/core/system/payload-schemas.ts       |  3 --
 src/core/system/register.ts              |  8 ++-
 src/infra/temporal/temporal-scheduler.ts | 23 ++++++---
 src/infra/temporal/workflow-router.ts    | 18 ++++---
 src/tools/lint-payloads/index.ts         | 36 ++++++++++++++
 14 files changed, 180 insertions(+), 35 deletions(-)
 create mode 100644 .github/workflows/core-linter.yml
 create mode 100644 ADRs/021-core-aggregate-routing.md
 create mode 100755 src/tools/lint-payloads/index.ts

diff --git a/.github/workflows/core-linter.yml b/.github/workflows/core-linter.yml
new file mode 100644
index 00000000..7eecea83
--- /dev/null
+++ b/.github/workflows/core-linter.yml
@@ -0,0 +1,26 @@
+name: Core Linter
+
+on:
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '22'
+          cache: 'npm'
+
+      - uses: actions/cache@v3
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-npm-${{ hashFiles('package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-npm-
+
+      - run: npm ci
+      - run: npm run tool:core-lint
diff --git a/ADRs/021-core-aggregate-routing.md b/ADRs/021-core-aggregate-routing.md
new file mode 100644
index 00000000..f4cf1972
--- /dev/null
+++ b/ADRs/021-core-aggregate-routing.md
@@ -0,0 +1,63 @@
+# ADR 021: Co-locate Aggregate Routing with Command Registration
+
+## Context
+
+The system currently registers command types separately from their routing logic. Routing to aggregates (i.e., deriving `aggregateType` and `aggregateId` from a command) is either inferred or redundantly handled elsewhere. This introduces implicit coupling and runtime ambiguity, especially for commands triggered via sagas or external workflows.
+
+In particular:
+
+* Aggregates rely on `aggregateId` and `aggregateType` being available in payloads.
+* Command metadata lives in `DomainRegistry.commandTypes()` but lacks routing.
+* Workflows (`processCommand`) must inject routing metadata for proper aggregate reconstruction.
+* Ambiguous `aggregateId` primary key mappings
+
+This violates the principle of co-location and increases the risk of drift between command schemas and routing logic.
+
+## Decision
+
+Extend `CommandTypeMeta` to include an optional `aggregateRouting` key:
+
+```ts
+aggregateRouting?: {
+  aggregateType: string;
+  extractId: (payload: any) => UUID;
+};
+```
+
+Update all `registerCommandType()` calls (e.g., in `system/register.ts`) to include routing metadata where applicable.
+
+During workflow dispatch in `WorkflowRouter.handle(cmd)`, inject routing data into command payloads before processing:
+
+```ts
+const meta = DomainRegistry.commandTypes()[cmd.type];
+const routing = meta?.aggregateRouting;
+
+if (routing) {
+  cmd.payload.aggregateType ??= routing.aggregateType;
+  cmd.payload.aggregateId ??= routing.extractId(cmd.payload);
+}
+```
+
+## Consequences
+
+### Pros
+
+* Declarative routing co-located with command type definition
+* Avoids ad-hoc inference of `aggregateType` / `aggregateId` at runtime
+* Enables automated analysis (e.g., lint-payloads tool) to verify routing completeness
+* Respects open/closed principle — saga/workflow code need not change per command type
+
+### Cons
+
+* Requires updating all `registerCommandType()` calls with routing
+* Minor learning curve: developers must now specify `aggregateRouting` explicitly
+
+## Alternatives Considered
+
+* **Central Routing Table**: Rejected — adds indirection, risks desync, harder to statically analyze.
+* **Assume client prepopulates routing**: Rejected — contradicts encapsulation; workflows should enforce context, not leak it.
+
+## Implementation Notes
+
+* A lint tool (`src/tools/lint-payloads.ts`) will enforce that all registered command types with `payloadSchema` also declare `aggregateRouting` (unless explicitly marked as saga-only).
+* This ADR aligns with system goals of deterministic routing, explicit boundaries, and tooling-aware metadata propagation.
diff --git a/README.md b/README.md
index 958f9ad0..dc0f3b9e 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,7 @@
 
 [![CI](https://github.com/geeewhy/intent/actions/workflows/build.yml/badge.svg)](https://github.com/geeewhy/intent/actions/workflows/build.yml)
 [![CI](https://github.com/geeewhy/intent/actions/workflows/unit-tests.yml/badge.svg)](https://github.com/geeewhy/intent/actions/workflows/unit-tests.yml)
+[![CI](https://github.com/geeewhy/intent/actions/workflows/core-linter.yml/badge.svg)](https://github.com/geeewhy/intent/actions/workflows/core-linter.yml)
 [![CI](https://github.com/geeewhy/intent/actions/workflows/projection-linter.yml/badge.svg)](https://github.com/geeewhy/intent/actions/workflows/projection-linter.yml)
 
 > **Intent** turns event-sourcing theory into a platform you can demo in five minutes. It’s a pragmatic, ports-first reference for multi-tenant, event-sourced CQRS back-ends powered by TypeScript and uses [Temporal](https://github.com/temporalio/temporal) for durable workflow execution.
diff --git a/devex-ui/src/components/Header.tsx b/devex-ui/src/components/Header.tsx
index 1c7fa5cf..3f792508 100644
--- a/devex-ui/src/components/Header.tsx
+++ b/devex-ui/src/components/Header.tsx
@@ -14,7 +14,7 @@ import { isMock, apiMode } from '@/config/apiMode';
 import { Logo } from './Logo';
 
 const tenants = ['tenant-1', 'tenant-2', 'tenant-3', '0af03580-98d5-4884-96e4-e75168d8b887'];
-const roles = ['admin', 'user', 'viewer'];
+const roles = ['admin', 'developer', 'tester'];
 
 export const Header = () => {
   const { tenant, role, setTenant, setRole } = useAppCtx();
diff --git a/package.json b/package.json
index 96369b63..08d46e48 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,7 @@
     "tool:projections-lint": "ts-node src/tools/projections-lint/index.ts",
     "tool:projection-check-drift": "ts-node src/tools/projections-drift-check/index.ts",
     "tool:projection-repair": "ts-node src/tools/projections-repair/index.ts",
+    "tool:core-lint": "ts-node src/tools/core-lint/index.ts",
     "setup": "ts-node src/tools/setup/setup.ts"
   },
   "dependencies": {
diff --git a/src/api/middlewares/accessLog.ts b/src/api/middlewares/accessLog.ts
index 320e27e6..e5667abd 100644
--- a/src/api/middlewares/accessLog.ts
+++ b/src/api/middlewares/accessLog.ts
@@ -11,15 +11,15 @@ export const accessLogMiddleware = (req: Request, res: Response, next: NextFunct
   // Log request details when the response is finished
   res.on('finish', () => {
     const duration = Date.now() - startTime;
-    stdLogger.info('API Request', {
-      operation: 'middlewares/accessLog.ts:accessLogMiddleware',
-      method: req.method,
-      path: req.originalUrl || req.url,
-      statusCode: res.statusCode,
-      duration: `${duration}ms`,
-      ip: req.ip || req.socket.remoteAddress,
-      userAgent: req.get('User-Agent')
-    });
+    // stdLogger.info('API Request', {
+    //   operation: 'middlewares/accessLog.ts:accessLogMiddleware',
+    //   method: req.method,
+    //   path: req.originalUrl || req.url,
+    //   statusCode: res.statusCode,
+    //   duration: `${duration}ms`,
+    //   ip: req.ip || req.socket.remoteAddress,
+    //   userAgent: req.get('User-Agent')
+    // });
   });
 
   next();
diff --git a/src/api/routes/commands.ts b/src/api/routes/commands.ts
index a054ffb8..1902cae4 100644
--- a/src/api/routes/commands.ts
+++ b/src/api/routes/commands.ts
@@ -94,7 +94,7 @@ router.post('/api/commands', async (req, res) => {
     try {
       // Schedule the command
       console.log(command);
-      await scheduler.schedule(command);
+      const schedulerResponse = await scheduler.schedule(command);
 
       // Log success
       logger?.info('Command scheduled successfully', {
@@ -105,10 +105,7 @@ router.post('/api/commands', async (req, res) => {
       });
 
       // Return success response
-      res.json({
-        status: 'success',
-        events: [] // The actual events will be generated by the workflow
-      });
+      res.json(schedulerResponse);
     } catch (error) {
       // Log error
       logger?.error('Failed to schedule command', {
diff --git a/src/core/ports.ts b/src/core/ports.ts
index 78466823..a152665a 100644
--- a/src/core/ports.ts
+++ b/src/core/ports.ts
@@ -4,6 +4,7 @@
  */
 
 import { Command, Event, UUID } from './contracts';
+import {CommandResult} from "../infra/contracts";
 
 /**
  * Inbound port for handling commands
@@ -58,7 +59,7 @@ export interface EventStorePort {
  * Outbound port for scheduling jobs/workflows
  */
 export interface JobSchedulerPort {
-  schedule(cmd: Command): Promise<void>;
+  schedule(cmd: Command): Promise<CommandResult>;
 }
 
 /**
diff --git a/src/core/registry.ts b/src/core/registry.ts
index 26cd32b8..256c9ac9 100644
--- a/src/core/registry.ts
+++ b/src/core/registry.ts
@@ -1,5 +1,5 @@
 //src/core/registry.ts
-import { CommandHandler, EventHandler, SagaDefinition, ReadModelUpdaterPort } from './contracts';
+import { CommandHandler, EventHandler, SagaDefinition, ReadModelUpdaterPort, UUID } from './contracts';
 import { AggregateClass } from './aggregates';
 import { z } from 'zod';
 
@@ -8,6 +8,10 @@ export interface CommandTypeMeta {
   domain: string;
   description: string;
   payloadSchema?: z.ZodTypeAny;
+  aggregateRouting?: {
+    aggregateType: string;
+    extractId: (payload: any) => UUID;
+  };
 }
 
 export interface EventTypeMeta {
diff --git a/src/core/system/payload-schemas.ts b/src/core/system/payload-schemas.ts
index 10ced401..0e9ea61d 100644
--- a/src/core/system/payload-schemas.ts
+++ b/src/core/system/payload-schemas.ts
@@ -5,8 +5,6 @@ import { SystemCommandType, SystemEventType } from './contracts';
 // -- commands
 
 export const LogMessagePayloadSchema = z.object({
-  aggregateId: z.string(), // todo id column wiring (testId = aggregateId), shouldnt bleed into contracts
-  aggregateType: z.string(), // todo workflow router - cmd handler should be able to lookup via registry
   message: z.string(),
   systemId: z.string().uuid().optional(), // todo singleton ids = validation trouble. see aggregate code for the ='system' hack
 });
@@ -14,7 +12,6 @@ export type LogMessagePayload = z.infer<typeof LogMessagePayloadSchema>;
 
 export const SimulateFailurePayloadSchema = z.object({
   aggregateId: z.string(),
-  aggregateType: z.string(),
   systemId: z.string().uuid().optional(),
 });
 export type SimulateFailurePayload = z.infer<typeof SimulateFailurePayloadSchema>;
diff --git a/src/core/system/register.ts b/src/core/system/register.ts
index bc98d3a3..4942db5f 100644
--- a/src/core/system/register.ts
+++ b/src/core/system/register.ts
@@ -14,6 +14,11 @@ import { SystemCommandType, SystemEventType } from './contracts';
 import { register as registerSystemProjections } from './read-models/register';
 import { commandPayloadSchemas, eventPayloadSchemas } from './payload-schemas';
 
+const aggregateRouting = {
+  aggregateType: 'system',
+  extractId: (payload: Partial<{ systemId: any; }>) => payload.systemId || 'system'
+}
+
 /**
  * Self-registration function for the system domain
  * Registers all system domain components with the central registry
@@ -41,7 +46,8 @@ export function registerSystemDomain(): void {
     registerCommandType(type, {
       domain: 'system',
       description: `System command: ${type}`,
-      payloadSchema: commandPayloadSchemas[type]
+      payloadSchema: commandPayloadSchemas[type],
+      aggregateRouting: aggregateRouting
     });
   });
 
diff --git a/src/infra/temporal/temporal-scheduler.ts b/src/infra/temporal/temporal-scheduler.ts
index f3765449..7030ff31 100644
--- a/src/infra/temporal/temporal-scheduler.ts
+++ b/src/infra/temporal/temporal-scheduler.ts
@@ -16,7 +16,7 @@ export class TemporalScheduler implements JobSchedulerPort, EventPublisherPort {
     private constructor(
         private readonly router: WorkflowRouter,
         private readonly client: WorkflowClient,
-        private readonly commandStore:CommandStorePort
+        private readonly commandStore: CommandStorePort
     ) {
     }
 
@@ -41,7 +41,7 @@ export class TemporalScheduler implements JobSchedulerPort, EventPublisherPort {
     /**
      * Schedule a command for execution via Temporal
      */
-    async schedule(cmd: Command): Promise<void> {
+    async schedule(cmd: Command): Promise<CommandResult> {
         const logger = log()?.child({
             commandId: cmd.id,
             commandType: cmd.type,
@@ -49,23 +49,30 @@ export class TemporalScheduler implements JobSchedulerPort, EventPublisherPort {
             correlationId: cmd.metadata?.correlationId
         });
 
-        logger?.info('Routing command');
+        let res: CommandResult = {
+            status: 'fail',
+            error: 'Command not supported'
+        };
+
+        logger?.info('Routing command', {cmd});
 
         if (this.router.supportsCommand(cmd)) {
             try {
                 await this.commandStore.upsert(cmd);
-                const res: CommandResult = await this.router.handle(cmd);
+                res = await this.router.handle(cmd);
                 const infraStatus = res.status === 'success' ? 'consumed' : 'failed';
                 await this.commandStore.markStatus(cmd.id, infraStatus, res);
-                logger?.info('Marked command status', { status: infraStatus });
+                logger?.debug('Marked command status', {status: infraStatus});
             } catch (e: any) {
-                await this.commandStore.markStatus(cmd.id, 'failed', { status: 'fail', error: e.message });
-                logger?.error('Failed to schedule command', { error: e });
+                res = {status: 'fail', error: e.message};
+                await this.commandStore.markStatus(cmd.id, 'failed', res);
+                logger?.error('Failed to schedule command', {error: e});
             }
         } else {
-            // @ts-ignore
             logger?.warn('No router supports command');
         }
+
+        return res;
     }
 
     /**
diff --git a/src/infra/temporal/workflow-router.ts b/src/infra/temporal/workflow-router.ts
index 048c99c3..bbb9a802 100644
--- a/src/infra/temporal/workflow-router.ts
+++ b/src/infra/temporal/workflow-router.ts
@@ -1,6 +1,6 @@
 // infra/temporal/workflow-router.ts
 import {Connection, WorkflowClient, WorkflowIdReusePolicy} from '@temporalio/client';
-import {getAllSagas} from '../../core/registry';
+import {getAllSagas, DomainRegistry} from '../../core/registry';
 import {Command, Event, UUID} from '../../core/contracts';
 import {log} from '../../core/logger';
 import {CommandHandler} from '../../core/contracts';
@@ -28,10 +28,7 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
 
     /** Supports command routing (aggregate or saga) */
     supportsCommand(cmd: Command): boolean {
-        return (
-            (!!cmd.payload?.aggregateId && !!cmd.payload?.aggregateType) ||
-            Object.values(SagaRegistry).some((s) => s.idFor(cmd))
-        );
+        return this.isAggregateCommand(cmd) || this.isSagaCommand(cmd);
     }
 
     /** Supports event routing */
@@ -41,6 +38,14 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
 
     /** Handle a command (always route to aggregate's processCommand workflow) */
     async handle(cmd: Command): Promise<CommandResult> {
+        const meta = DomainRegistry.commandTypes()[cmd.type];
+        const routing = meta?.aggregateRouting;
+
+        if (routing) {
+            cmd.payload.aggregateType ??= routing.aggregateType;
+            cmd.payload.aggregateId ??= routing.extractId(cmd.payload);
+        }
+
         if (this.isAggregateCommand(cmd)) {
             const {tenant_id} = cmd;
             const aggregateType = cmd.payload?.aggregateType;
@@ -233,7 +238,8 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
 
     /** Check if a command is for an aggregate */
     private isAggregateCommand(cmd: Command): boolean {
-        return !!cmd.payload?.aggregateId && !!cmd.payload?.aggregateType;
+        const meta = DomainRegistry.commandTypes()[cmd.type];
+        return !!meta?.aggregateRouting || (!!cmd.payload?.aggregateId && !!cmd.payload?.aggregateType);
     }
 
     /** Get workflow ID for aggregates */
diff --git a/src/tools/lint-payloads/index.ts b/src/tools/lint-payloads/index.ts
new file mode 100755
index 00000000..e25e3965
--- /dev/null
+++ b/src/tools/lint-payloads/index.ts
@@ -0,0 +1,36 @@
+#!/usr/bin/env node
+/**
+ * Lint-core tool
+ *
+ * Placeholder.
+ * Currently, checks that all registered commands with a payloadSchema also declare aggregateRouting (if not saga-only)
+ */
+
+import { DomainRegistry } from '../../core/registry';
+
+// Get all registered command types
+const commandTypes = DomainRegistry.commandTypes();
+
+// Track issues
+const issues: string[] = [];
+
+// Check each command type
+Object.entries(commandTypes).forEach(([type, meta]) => {
+  // Skip commands without a payload schema
+  if (!meta.payloadSchema) return;
+
+  // Check if the command has aggregate routing
+  if (!meta.aggregateRouting) {
+    issues.push(`Command type '${type}' has a payloadSchema but no aggregateRouting`);
+  }
+});
+
+// Report results
+if (issues.length > 0) {
+  console.error('Payload linting found issues:');
+  issues.forEach(issue => console.error(`- ${issue}`));
+  process.exit(1);
+} else {
+  console.log('All command payloads have proper routing configuration.');
+  process.exit(0);
+}
\ No newline at end of file

From 27d06ca9d0eea645cae423d85a18c50ab06ad28f Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Mon, 9 Jun 2025 23:51:02 -0700
Subject: [PATCH 09/21] feat(ui): add role switch, enhance cmd highlighting

src/components/Header.tsx: Removed role switcher; simplified tenant UI.
src/components/CommandIssuer.tsx: Replaced aggregate ID with role switcher. Added cmd highlight for recent submissions, adjusted toast UX.
---
 devex-ui/src/App.css                      |   1 +
 devex-ui/src/components/CommandIssuer.tsx | 242 +++++++++++-----------
 devex-ui/src/components/Header.tsx        |  27 +--
 3 files changed, 128 insertions(+), 142 deletions(-)

diff --git a/devex-ui/src/App.css b/devex-ui/src/App.css
index b9d355df..da788834 100644
--- a/devex-ui/src/App.css
+++ b/devex-ui/src/App.css
@@ -40,3 +40,4 @@
 .read-the-docs {
   color: #888;
 }
+
diff --git a/devex-ui/src/components/CommandIssuer.tsx b/devex-ui/src/components/CommandIssuer.tsx
index a82cb065..e39128a1 100644
--- a/devex-ui/src/components/CommandIssuer.tsx
+++ b/devex-ui/src/components/CommandIssuer.tsx
@@ -9,7 +9,6 @@ import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@
 import { Badge } from "@/components/ui/badge";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Clock, Send, RotateCcw, Terminal, ChevronDown, ChevronRight, RefreshCw, AlertCircle } from "lucide-react";
-import type { CommandSchema } from "@/data/types";
 import { useCommands, useSubmitCommand } from "@/hooks/api";
 import { validate, registerSchemas } from "@/utils/schemaValidator";
 import { makeExample } from "@/utils/schemaFaker";
@@ -17,21 +16,21 @@ import { toast } from "@/components/ui/sonner";
 import { useAppCtx } from '@/app/AppProvider';
 import { useQuery } from "@tanstack/react-query";
 import { fetchCommandRegistry } from "@/data/apiService";
+import { cn } from "@/lib/utils";
 
-const generateUUID4 = (): string => {
-  return crypto.randomUUID();
-};
+const roles = ['admin', 'developer', 'tester', 'johndoe'];
 
 export const CommandIssuer = () => {
-  const { tenant } = useAppCtx();
+  const { tenant, role, setRole } = useAppCtx();
   const [selectedCommand, setSelectedCommand] = useState("");
-  const [aggregateId, setAggregateId] = useState("");
   const [payload, setPayload] = useState("");
   const [formData, setFormData] = useState<Record<string, unknown>>({});
   const [payloadView, setPayloadView] = useState<"form" | "json">("form");
   const [expandedCommand, setExpandedCommand] = useState<string | null>(null);
   const [validationErrors, setValidationErrors] = useState<string[]>([]);
   const [invalidFields, setInvalidFields] = useState<Set<string>>(new Set());
+  const [lastSubmittedId, setLastSubmittedId] = useState<string | null>(null);
+  const [highlightedCommandId, setHighlightedCommandId] = useState<string | null>(null);
 
   // Use React Query hooks
   const { data: recentCommands = [] } = useCommands(tenant, 10);
@@ -115,15 +114,12 @@ export const CommandIssuer = () => {
       id: crypto.randomUUID(),
       tenant_id: tenant,
       type: selectedCommand,
-      payload: {
-        ...payloadData,
-        ...(aggregateId ? { aggregateId } : {})
-      },
+      payload: payloadData,
       metadata: {
         timestamp: new Date().toISOString(),
         userId: crypto.randomUUID(),
-        role: 'user',
-        source: 'command-issuer'
+        role,
+        source: 'devx/command-issuer'
       }
     };
 
@@ -133,25 +129,31 @@ export const CommandIssuer = () => {
       onSuccess: (result) => {
         console.log('Command submission result:', result);
 
-        toast.success(
-          result.status === 'success'
-            ? 'Command executed 🎉'
-            : 'Command failed',
-          {
-            description:
-              result.status === 'success'
-                ? `${result.events?.length ?? 0} event(s) produced`
-                : result.error
-          }
-        );
-
-        // Reset form
-        setSelectedCommand("");
-        setAggregateId("");
-        setPayload("");
-        setFormData({});
-        setValidationErrors([]);
-        setInvalidFields(new Set());
+        if (result.status === 'success') {
+          toast.success('Command executed', {
+            description: `${result.events?.length > 0 ? result.events?.length + 'event(s) produced' : ''}`
+          });
+
+          // Set the last submitted ID
+          setLastSubmittedId(commandPayload.id);
+          setHighlightedCommandId(commandPayload.id);
+
+          setTimeout(() => {
+            setHighlightedCommandId(null);
+          }, 500);
+
+          // Reset form
+          setPayload("");
+          setFormData({});
+          setValidationErrors([]);
+          setInvalidFields(new Set());
+        } else {
+          toast.error('Command failed', {
+            description: 'Error:' + result.error || 'Unknown failure'
+          });
+
+          // Keep form open (do not reset anything)
+        }
       },
       onError: (error) => {
         console.error('Command submission failed:', error);
@@ -164,9 +166,6 @@ export const CommandIssuer = () => {
     });
   };
 
-  const generateAggregateId = () => {
-    setAggregateId(generateUUID4());
-  };
 
 
   const handleFormDataChange = (key: string, value: unknown) => {
@@ -342,25 +341,19 @@ export const CommandIssuer = () => {
               </div>
 
               <div className="space-y-2">
-                <Label htmlFor="aggregate-id" className="text-slate-300">Aggregate ID</Label>
-                <div className="flex gap-2">
-                  <Input
-                    id="aggregate-id"
-                    value={aggregateId}
-                    onChange={(e) => setAggregateId(e.target.value)}
-                    placeholder="e.g., system-123"
-                    className="bg-slate-800 border-slate-700 text-slate-100"
-                  />
-                  <Button 
-                    type="button" 
-                    variant="outline" 
-                    size="icon"
-                    onClick={generateAggregateId}
-                    className="bg-slate-800 border-slate-700 hover:bg-slate-700"
-                  >
-                    <RotateCcw className="h-4 w-4" />
-                  </Button>
-                </div>
+                <Label htmlFor="role" className="text-slate-300">Role</Label>
+                <Select value={role} onValueChange={setRole}>
+                  <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
+                    <SelectValue placeholder="Select role" />
+                  </SelectTrigger>
+                  <SelectContent className="bg-slate-800 border-slate-700">
+                    {roles.map((r) => (
+                      <SelectItem key={r} value={r} className="text-slate-100 hover:bg-slate-700">
+                        {r}
+                      </SelectItem>
+                    ))}
+                  </SelectContent>
+                </Select>
               </div>
             </div>
 
@@ -474,75 +467,88 @@ export const CommandIssuer = () => {
           </CardHeader>
           <CardContent>
             <div className="space-y-2">
-              {recentCommands.map((cmd) => (
-                <div key={cmd.id} className="space-y-2">
-                  <div 
-                    className="flex items-center justify-between p-2 bg-slate-800 rounded cursor-pointer hover:bg-slate-750"
-                    onClick={() => toggleCommandExpansion(cmd.id)}
+              {recentCommands.map((cmd, idx) => {
+                const isHighlighted = cmd.id === highlightedCommandId;
+                const highlightClass = isHighlighted ? "ring-2 ring-blue-500 bg-blue-500/10" : "";
+                return (
+                  <div
+                    key={cmd.id}
+                    className={cn("space-y-2 transition-all duration-300", highlightClass)}
                   >
-                    <div className="flex items-center gap-2 text-xs text-slate-300 flex-1 min-w-0">
-                      {expandedCommand === cmd.id ? (
-                        <ChevronDown className="h-3 w-3 flex-shrink-0" />
-                      ) : (
-                        <ChevronRight className="h-3 w-3 flex-shrink-0" />
-                      )}
-                      {
-                        cmd.createdAt && <span className="text-slate-500">
-                        {new Date(cmd.createdAt).toLocaleString(undefined, {
-                          hour:   '2-digit',
-                          minute: '2-digit',
-                          second: '2-digit',
-                        })}
-                       </span>
-                      }
-                      <span className="text-slate-400 font-mono truncate">{cmd.id}</span>
-                      <span className="text-slate-200 truncate">{cmd.type}</span>
-                    </div>
-
-                    <Badge 
-                      variant={
-                        ({
-                          pending:   'secondary',
-                          mocked:   'secondary',
-                          processed: 'default',
-                          consumed:  'default',
-                          failed:    'destructive',
-                        } as const)[cmd.status]
-                      }
-                      className="text-xs flex-shrink-0"
+                    <div 
+                      className="flex items-center justify-between p-2 bg-slate-800 rounded cursor-pointer hover:bg-slate-750"
+                      onClick={() => toggleCommandExpansion(cmd.id)}
                     >
-                      {cmd.status}
-                    </Badge>
-                  </div>
-
-                  {expandedCommand === cmd.id && (
-                    <div key={`${cmd.id}-details`} className="ml-5 p-3 bg-slate-800/50 rounded text-xs space-y-2">
-                      <span className="text-slate-400 font-medium">
-                        {new Date(cmd.createdAt).toLocaleString(undefined, {
-                          year:   '2-digit',
-                          month:   '2-digit',
-                          day:   '2-digit',
-                          hour:   '2-digit',
-                          minute: '2-digit',
-                          second: '2-digit',
-                        })}
-                      </span>
-                      <div>
-                        <div className="text-slate-400 font-medium mb-1">Payload:</div>
-                        <pre className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
-                          {JSON.stringify(cmd.payload, null, 2)}
-                        </pre>
-                      </div>
-                      <div>
-                        <div className="text-slate-400 font-medium mb-1">Response:</div>
-                        <pre className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
-                          {JSON.stringify(cmd.response, null, 2)}
-                        </pre>
+                      <div className="flex items-center gap-2 text-xs text-slate-300 flex-1 min-w-0">
+                        {expandedCommand === cmd.id ? (
+                          <ChevronDown className="h-3 w-3 flex-shrink-0" />
+                        ) : (
+                          <ChevronRight className="h-3 w-3 flex-shrink-0" />
+                        )}
+                        {
+                          cmd.createdAt && <span className="text-slate-500">
+                          {new Date(cmd.createdAt).toLocaleString(undefined, {
+                            hour:   '2-digit',
+                            minute: '2-digit',
+                            second: '2-digit',
+                          })}
+                         </span>
+                        }
+                        <span className="text-slate-400 font-mono truncate">{cmd.id}</span>
+                        <span className="text-slate-200 truncate">{cmd.type}</span>
                       </div>
+
+                      <Badge 
+                        variant={
+                          ({
+                            pending:   'secondary',
+                            mocked:   'secondary',
+                            processed: 'default',
+                            consumed:  'default',
+                            failed:    'destructive',
+                          } as const)[cmd.status]
+                        }
+                        className="text-xs flex-shrink-0"
+                      >
+                        {cmd.status}
+                      </Badge>
                     </div>
-                  )}
-                </div>
-              ))}
+
+                    {expandedCommand === cmd.id && (
+                      <div key={`${cmd.id}-details`} className="ml-5 p-3 bg-slate-800/50 rounded text-xs space-y-2">
+                        <span className="text-slate-400 font-medium">
+                          {new Date(cmd.createdAt).toLocaleString(undefined, {
+                            year:   '2-digit',
+                            month:   '2-digit',
+                            day:   '2-digit',
+                            hour:   '2-digit',
+                            minute: '2-digit',
+                            second: '2-digit',
+                          })}
+                        </span>
+                        <div>
+                          <div className="text-slate-400 font-medium mb-1">Metadata:</div>
+                          <pre className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
+                            {JSON.stringify(cmd.metadata ?? {}, null, 2)}
+                          </pre>
+                        </div>
+                        <div>
+                          <div className="text-slate-400 font-medium mb-1">Payload:</div>
+                          <pre className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
+                            {JSON.stringify(cmd.payload, null, 2)}
+                          </pre>
+                        </div>
+                        <div>
+                          <div className="text-slate-400 font-medium mb-1">Response:</div>
+                          <pre className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
+                            {JSON.stringify(cmd.response, null, 2)}
+                          </pre>
+                        </div>
+                      </div>
+                    )}
+                  </div>
+                );
+              })}
             </div>
           </CardContent>
         </Card>
diff --git a/devex-ui/src/components/Header.tsx b/devex-ui/src/components/Header.tsx
index 3f792508..a1f722c9 100644
--- a/devex-ui/src/components/Header.tsx
+++ b/devex-ui/src/components/Header.tsx
@@ -13,11 +13,10 @@ import { useAppCtx } from '@/app/AppProvider';
 import { isMock, apiMode } from '@/config/apiMode';
 import { Logo } from './Logo';
 
-const tenants = ['tenant-1', 'tenant-2', 'tenant-3', '0af03580-98d5-4884-96e4-e75168d8b887'];
-const roles = ['admin', 'developer', 'tester'];
+const tenants = ['0af03580-98d5-4884-96e4-e75168d8b887'];
 
 export const Header = () => {
-  const { tenant, role, setTenant, setRole } = useAppCtx();
+  const { tenant, setTenant } = useAppCtx();
 
   return (
     <header className="h-16 bg-slate-900 border-b border-slate-800 flex items-center px-6 gap-6">
@@ -27,7 +26,7 @@ export const Header = () => {
         <span className="text-xl font-semibold text-slate-100">Intent DevX</span>
       </div>
 
-      {/* Tenant/Role Switchers */}
+      {/* Tenant switcher */}
       <div className="flex items-center gap-3">
         <DropdownMenu>
           <DropdownMenuTrigger asChild>
@@ -48,26 +47,6 @@ export const Header = () => {
             ))}
           </DropdownMenuContent>
         </DropdownMenu>
-
-        <DropdownMenu>
-          <DropdownMenuTrigger asChild>
-            <Button variant="outline" className="bg-slate-800 border-slate-700 text-slate-100 hover:bg-slate-700">
-              Role: {role}
-              <ChevronDown className="ml-2 h-4 w-4" />
-            </Button>
-          </DropdownMenuTrigger>
-          <DropdownMenuContent className="bg-slate-800 border-slate-700">
-            {roles.map((role) => (
-              <DropdownMenuItem 
-                key={role}
-                onClick={() => setRole(role)}
-                className="text-slate-100 hover:bg-slate-700"
-              >
-                {role}
-              </DropdownMenuItem>
-            ))}
-          </DropdownMenuContent>
-        </DropdownMenu>
       </div>
 
       {/* Spacer */}

From 342d72e1fa54752833cd52be400894d59f19acb0 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 01:00:23 -0700
Subject: [PATCH 10/21] feat(logger): integrate apiLogger into middleware and
 routes

src/infra/logger/apiLogger.ts, src/api/logger.ts: Added and exported `apiLogger` for modular logging focused on API layer encapsulation.
src/api/middlewares/accessLog.ts: Switched to `apiLogger` for request/response logging, replacing `stdLogger` for enhanced modularity.
src/api/routes/commands.ts: Replaced `stdLogger` with `logger` from `apiLogger`, removed redundant logger setup for improved consistency and cleaner dependency management.
---
 src/api/logger.ts                |  6 ++++++
 src/api/middlewares/accessLog.ts | 22 +++++++++++-----------
 src/api/routes/commands.ts       | 16 ++++++++--------
 src/infra/logger/apiLogger.ts    |  7 +++++++
 4 files changed, 32 insertions(+), 19 deletions(-)
 create mode 100644 src/api/logger.ts
 create mode 100644 src/infra/logger/apiLogger.ts

diff --git a/src/api/logger.ts b/src/api/logger.ts
new file mode 100644
index 00000000..af66c912
--- /dev/null
+++ b/src/api/logger.ts
@@ -0,0 +1,6 @@
+import { apiLogger } from '../infra/logger/apiLogger';
+import { setLoggerAccessor } from '../core/logger';
+
+setLoggerAccessor(() => apiLogger);
+
+export default apiLogger;
\ No newline at end of file
diff --git a/src/api/middlewares/accessLog.ts b/src/api/middlewares/accessLog.ts
index e5667abd..ab1fca55 100644
--- a/src/api/middlewares/accessLog.ts
+++ b/src/api/middlewares/accessLog.ts
@@ -1,5 +1,5 @@
 import { Request, Response, NextFunction } from 'express';
-import { stdLogger } from '../../infra/logger/stdLogger';
+import { apiLogger } from '../../infra/logger/apiLogger';
 
 /**
  * Access logging middleware
@@ -11,18 +11,18 @@ export const accessLogMiddleware = (req: Request, res: Response, next: NextFunct
   // Log request details when the response is finished
   res.on('finish', () => {
     const duration = Date.now() - startTime;
-    // stdLogger.info('API Request', {
-    //   operation: 'middlewares/accessLog.ts:accessLogMiddleware',
-    //   method: req.method,
-    //   path: req.originalUrl || req.url,
-    //   statusCode: res.statusCode,
-    //   duration: `${duration}ms`,
-    //   ip: req.ip || req.socket.remoteAddress,
-    //   userAgent: req.get('User-Agent')
-    // });
+    apiLogger.info('Access log', {
+      operation: 'accessLogMiddleware',
+      method: req.method,
+      path: req.originalUrl || req.url,
+      statusCode: res.statusCode,
+      duration: duration,
+      ip: req.ip || req.socket.remoteAddress,
+      userAgent: req.get('User-Agent')
+    });
   });
 
   next();
 };
 
-export default accessLogMiddleware;
\ No newline at end of file
+export default accessLogMiddleware;
diff --git a/src/api/routes/commands.ts b/src/api/routes/commands.ts
index 1902cae4..305c0098 100644
--- a/src/api/routes/commands.ts
+++ b/src/api/routes/commands.ts
@@ -1,12 +1,7 @@
 import { Router } from 'express';
 import pool from '../db';
-import {setLoggerAccessor, log} from '../../core/logger';
-import {stdLogger} from '../../infra/logger/stdLogger';
 import { TemporalScheduler } from '../../infra/temporal/temporal-scheduler';
-
-
-setLoggerAccessor(() => stdLogger);
-const logger = log();
+import logger from '../logger';
 
 const router = Router();
 
@@ -40,7 +35,7 @@ router.get('/api/commands', async (req, res) => {
       client.release();
     }
   } catch (error) {
-    stdLogger.error('Commands endpoint error:', { error });
+    logger.error('Commands endpoint error:', { error });
     res.status(500).json({
       error: error instanceof Error ? error.message : String(error)
     });
@@ -104,7 +99,12 @@ router.post('/api/commands', async (req, res) => {
         tenantId: command.tenant_id
       });
 
-      // Return success response
+      if (schedulerResponse.status === 'fail') {
+        //res.status(422);
+      }
+      else {
+        res.status(200);
+      }
       res.json(schedulerResponse);
     } catch (error) {
       // Log error
diff --git a/src/infra/logger/apiLogger.ts b/src/infra/logger/apiLogger.ts
new file mode 100644
index 00000000..5dd31305
--- /dev/null
+++ b/src/infra/logger/apiLogger.ts
@@ -0,0 +1,7 @@
+import { stdLogger } from './stdLogger';
+import { LoggerPort } from '../../core/ports';
+
+export const apiLogger: LoggerPort = stdLogger.child({
+  module: 'api',
+  layer: 'access',
+});
\ No newline at end of file

From e221c8db272a801cdf36ca06c0817830bbcf749d Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 01:40:19 -0700
Subject: [PATCH 11/21] feat(core): add roles registration and API endpoints

src/core/system/register.ts: Introduced `registerRoles` interface and registered domain roles for "system".
src/api/routes/registry.ts: Added `/api/registry/roles` endpoint to expose roles meta; updated registry response to include roles data.
src/core/registry.ts: Added roles storage, registration, and retrieval utilities in the `DomainRegistry`.
src/tools/core-lint/index.ts: Clarified file path for better script organization.
---
 src/api/routes/registry.ts                    | 21 ++++++++++++++++++-
 src/core/registry.ts                          | 12 +++++++++++
 src/core/system/register.ts                   |  6 +++++-
 .../{lint-payloads => core-lint}/index.ts     |  2 ++
 4 files changed, 39 insertions(+), 2 deletions(-)
 rename src/tools/{lint-payloads => core-lint}/index.ts (96%)

diff --git a/src/api/routes/registry.ts b/src/api/routes/registry.ts
index b2cde6e7..e35735f3 100644
--- a/src/api/routes/registry.ts
+++ b/src/api/routes/registry.ts
@@ -32,6 +32,7 @@ router.get('/api/registry', (req, res) => {
     sagas: Object.keys(DomainRegistry.sagas()),
     commandTypes: commands,
     eventTypes: events,
+    roles: DomainRegistry.roles(),
   });
 });
 
@@ -48,6 +49,12 @@ router.get('/api/registry/commands', (req, res) => {
   res.json(attachSchema(data, includeSchema));
 });
 
+// Roles endpoint
+router.get('/api/registry/roles', (req, res) => {
+  res.json(DomainRegistry.roles());
+});
+
+
 // Events endpoint
 router.get('/api/registry/events', (req, res) => {
   const includeSchema = req.query.includeSchema === 'true';
@@ -76,4 +83,16 @@ router.get('/api/registry/domains', (_req, res) =>
   res.json(DomainRegistry.domains()),
 );
 
-export default router;
\ No newline at end of file
+// Roles endpoint
+router.get('/api/registry/roles', (req, res) => {
+  const domain = req.query.domain as string | undefined;
+
+  if (domain) {
+    const roles = DomainRegistry.roles()[domain] || [];
+    res.json(roles);
+  } else {
+    res.json(DomainRegistry.roles());
+  }
+});
+
+export default router;
diff --git a/src/core/registry.ts b/src/core/registry.ts
index 256c9ac9..83ca9c6e 100644
--- a/src/core/registry.ts
+++ b/src/core/registry.ts
@@ -44,6 +44,7 @@ export interface Registry {
   eventTypes: Record<string, EventTypeMeta>;
   projections: Record<string, ProjectionDefinition>;
   domains: string[];
+  roles: Record<string, string[]>;
 }
 
 const registry: Registry = {
@@ -55,6 +56,7 @@ const registry: Registry = {
   eventTypes: {},
   projections: {},
   domains: [],
+  roles: {},
 };
 
 // --- Registration helpers
@@ -103,6 +105,11 @@ export function registerProjection(name: string, def: ProjectionDefinition): voi
   registry.projections[name] = def;
 }
 
+export function registerRoles(domain: string, roles: string[]): void {
+  if (registry.roles[domain]) throw new Error(`Roles already registered for domain: ${domain}`);
+  registry.roles[domain] = roles;
+}
+
 /* ——— Getters ——— */
 export function getAllAggregates(): Record<string, AggregateClass> {
   return registry.aggregates;
@@ -136,6 +143,10 @@ export function getAllDomains(): string[] {
   return registry.domains;
 }
 
+export function getAllRoles(): Record<string, string[]> {
+  return registry.roles;
+}
+
 // -- convenience exports
 export const DomainRegistry = {
   aggregates: getAllAggregates,
@@ -146,6 +157,7 @@ export const DomainRegistry = {
   eventTypes: getAllEventTypes,
   projections: getAllProjections,
   domains: getAllDomains,
+  roles: getAllRoles,
 };
 
 export default DomainRegistry;
diff --git a/src/core/system/register.ts b/src/core/system/register.ts
index 4942db5f..52de797d 100644
--- a/src/core/system/register.ts
+++ b/src/core/system/register.ts
@@ -6,11 +6,12 @@ import {
   registerSaga,
   registerCommandType,
   registerEventType,
+  registerRoles,
 } from '../registry';
 import { SystemAggregate } from './aggregates/system.aggregate';
 import { SystemCommandHandler } from './command-handler';
 import { systemSagaRegistry } from './sagas/saga-registry';
-import { SystemCommandType, SystemEventType } from './contracts';
+import { SystemCommandType, SystemEventType, SystemRole } from './contracts';
 import { register as registerSystemProjections } from './read-models/register';
 import { commandPayloadSchemas, eventPayloadSchemas } from './payload-schemas';
 
@@ -59,6 +60,9 @@ export function registerSystemDomain(): void {
       payloadSchema: eventPayloadSchemas[type]
     });
   });
+
+  // Register roles
+  registerRoles('system', ['tester', 'system', 'developer']);
 }
 
 // Auto-register when imported
diff --git a/src/tools/lint-payloads/index.ts b/src/tools/core-lint/index.ts
similarity index 96%
rename from src/tools/lint-payloads/index.ts
rename to src/tools/core-lint/index.ts
index e25e3965..1dbd6bfc 100755
--- a/src/tools/lint-payloads/index.ts
+++ b/src/tools/core-lint/index.ts
@@ -1,4 +1,6 @@
 #!/usr/bin/env node
+
+//src/tools/core-lint/index.ts
 /**
  * Lint-core tool
  *

From c5955f4ebe2b40ef46e49b3201e0414bb01b0139 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 02:26:42 -0700
Subject: [PATCH 12/21] feat(roles): add roles management and domain-based
 query

devex-ui/src/mocks/stores/roles.store.ts: Created roles store and helper to manage domain-based roles.
devex-ui/src/hooks/api/useRoles.ts: Added a react-query hook to fetch roles by domain.
devex-ui/src/mocks/scenarios/default.ts: Seeded roles store with default domain-role mappings for mock data.
devex-ui/src/data/apiService.ts: Created fetch function for fetching roles by domain from API.
devex-ui/src/mocks/handlers.ts: Added API mock handler for fetching roles, including default fallback.
devex-ui/src/hooks/api/queryKeys.ts: Added query keys for roles for use in react-query.
devex-ui/src/hooks/api/index.ts: Exported `useRoles` for centralized API hook import.
devex-ui/src/mocks/stores/index.ts: Exported `roles.store` for centralized store registry.
devex-ui/src/data/api.ts: Refactored API baseUrl to account for `apiMode` changes.
devex-ui/src/components/CommandIssuer.tsx: Integrated roles query to dynamically fetch roles based on selected command's domain.
devex-ui/src/components/Header.tsx: Minor update to tenants array for example clarity.
---
 devex-ui/src/components/CommandIssuer.tsx |  6 ++--
 devex-ui/src/components/Header.tsx        |  2 +-
 devex-ui/src/data/api.ts                  |  7 ++--
 devex-ui/src/data/apiService.ts           |  5 +++
 devex-ui/src/hooks/api/index.ts           |  1 +
 devex-ui/src/hooks/api/queryKeys.ts       |  6 ++++
 devex-ui/src/hooks/api/useRoles.ts        | 20 ++++++++++++
 devex-ui/src/mocks/handlers.ts            | 26 +++++++++++++--
 devex-ui/src/mocks/scenarios/default.ts   | 40 +++++++++++++++++++++++
 devex-ui/src/mocks/stores/index.ts        |  1 +
 devex-ui/src/mocks/stores/roles.store.ts  | 19 +++++++++++
 11 files changed, 124 insertions(+), 9 deletions(-)
 create mode 100644 devex-ui/src/hooks/api/useRoles.ts
 create mode 100644 devex-ui/src/mocks/stores/roles.store.ts

diff --git a/devex-ui/src/components/CommandIssuer.tsx b/devex-ui/src/components/CommandIssuer.tsx
index e39128a1..a8ce494f 100644
--- a/devex-ui/src/components/CommandIssuer.tsx
+++ b/devex-ui/src/components/CommandIssuer.tsx
@@ -9,7 +9,7 @@ import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@
 import { Badge } from "@/components/ui/badge";
 import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
 import { Clock, Send, RotateCcw, Terminal, ChevronDown, ChevronRight, RefreshCw, AlertCircle } from "lucide-react";
-import { useCommands, useSubmitCommand } from "@/hooks/api";
+import { useCommands, useSubmitCommand, useRoles } from "@/hooks/api";
 import { validate, registerSchemas } from "@/utils/schemaValidator";
 import { makeExample } from "@/utils/schemaFaker";
 import { toast } from "@/components/ui/sonner";
@@ -18,8 +18,6 @@ import { useQuery } from "@tanstack/react-query";
 import { fetchCommandRegistry } from "@/data/apiService";
 import { cn } from "@/lib/utils";
 
-const roles = ['admin', 'developer', 'tester', 'johndoe'];
-
 export const CommandIssuer = () => {
   const { tenant, role, setRole } = useAppCtx();
   const [selectedCommand, setSelectedCommand] = useState("");
@@ -280,6 +278,8 @@ export const CommandIssuer = () => {
   };
 
   const selectedCommandSchema = commandRegistry.find(cmd => cmd.type === selectedCommand);
+  const domain = selectedCommandSchema?.domain;
+  const { data: roles = [] } = useRoles(domain);
 
   const toggleCommandExpansion = (commandId: string) => {
     setExpandedCommand(expandedCommand === commandId ? null : commandId);
diff --git a/devex-ui/src/components/Header.tsx b/devex-ui/src/components/Header.tsx
index a1f722c9..c1b8f756 100644
--- a/devex-ui/src/components/Header.tsx
+++ b/devex-ui/src/components/Header.tsx
@@ -13,7 +13,7 @@ import { useAppCtx } from '@/app/AppProvider';
 import { isMock, apiMode } from '@/config/apiMode';
 import { Logo } from './Logo';
 
-const tenants = ['0af03580-98d5-4884-96e4-e75168d8b887'];
+const tenants = ['tenant-1','0af03580-98d5-4884-96e4-e75168d8b887'];
 
 export const Header = () => {
   const { tenant, setTenant } = useAppCtx();
diff --git a/devex-ui/src/data/api.ts b/devex-ui/src/data/api.ts
index cf22873d..98cf40b8 100644
--- a/devex-ui/src/data/api.ts
+++ b/devex-ui/src/data/api.ts
@@ -1,6 +1,8 @@
 //devex-ui/src/data/api.ts
 import { toast } from "@/components/ui/sonner";
 
+const apiMode = localStorage.getItem('api_mode') || import.meta.env.VITE_API_MODE || 'mock';
+
 // API client configuration
 export const API_CONFIG = {
   baseUrl: localStorage.getItem('api_uri') || import.meta.env.VITE_API_URL || '',
@@ -17,9 +19,8 @@ export const API_CONFIG = {
 
 // --- URL builder
 function buildUrl(endpoint: string, params?: Record<string, string>): string {
-  const url = API_CONFIG.baseUrl
-      ? new URL(`${API_CONFIG.baseUrl}${endpoint}`)
-      : new URL(endpoint, window.location.origin);
+  const base = apiMode === 'mock' ? '' : (localStorage.getItem('api_uri') || import.meta.env.VITE_API_URL || '');
+  const url = new URL(`${base}${endpoint}`, window.location.origin);
 
   if (params) {
     Object.entries(params).forEach(([k, v]) => url.searchParams.append(k, v));
diff --git a/devex-ui/src/data/apiService.ts b/devex-ui/src/data/apiService.ts
index 23d58c62..cf1c94b8 100644
--- a/devex-ui/src/data/apiService.ts
+++ b/devex-ui/src/data/apiService.ts
@@ -53,3 +53,8 @@ export const fetchLogs = (tenant: string, limit=50) =>
 export const fetchCommandRegistry = async (): Promise<CommandSchema[]> => {
   return apiClient.get<CommandSchema[]>(API_CONFIG.endpoints.registry, { includeSchema: 'true' });
 };
+
+export const fetchRolesByDomain = async (domain: string): Promise<string[]> => {
+  const result = await apiClient.get<Record<string, string[]>>('/api/registry/roles');
+  return result[domain] ?? [];
+};
diff --git a/devex-ui/src/hooks/api/index.ts b/devex-ui/src/hooks/api/index.ts
index 01f772ae..1a4af924 100644
--- a/devex-ui/src/hooks/api/index.ts
+++ b/devex-ui/src/hooks/api/index.ts
@@ -5,3 +5,4 @@ export * from './useEvent';
 export * from './useCommands';
 export * from './useSubmitCommand';
 export * from './useMetrics';
+export * from './useRoles';
diff --git a/devex-ui/src/hooks/api/queryKeys.ts b/devex-ui/src/hooks/api/queryKeys.ts
index 693f4782..2a67a690 100644
--- a/devex-ui/src/hooks/api/queryKeys.ts
+++ b/devex-ui/src/hooks/api/queryKeys.ts
@@ -19,3 +19,9 @@ export const logsKeys = {
   lists: () => [...logsKeys.all, 'list'] as const,
   list: (tenant: string, limit: number) => [...logsKeys.lists(), tenant, limit] as const,
 }
+
+export const rolesKeys = {
+  all: ['roles'] as const,
+  lists: () => [...rolesKeys.all, 'list'] as const,
+  list: (domain: string) => [...rolesKeys.lists(), domain] as const,
+}
diff --git a/devex-ui/src/hooks/api/useRoles.ts b/devex-ui/src/hooks/api/useRoles.ts
new file mode 100644
index 00000000..99676075
--- /dev/null
+++ b/devex-ui/src/hooks/api/useRoles.ts
@@ -0,0 +1,20 @@
+//devex-ui/src/hooks/api/useRoles.ts
+import { useQuery } from '@tanstack/react-query';
+import { isMock } from '@/config/apiMode';
+import { fetchRolesByDomain } from '@/data';
+import { rolesStore } from '@/mocks/stores/roles.store';
+import { rolesKeys } from './queryKeys';
+
+export function useRoles(domain: string) {
+  return useQuery({
+    queryKey: rolesKeys.list(domain),
+    queryFn: async () => {
+      if (isMock) {
+        const match = rolesStore.list().find(r => r.domain === domain);
+        return match?.roles ?? [];
+      }
+      return fetchRolesByDomain(domain);
+    },
+    enabled: !!domain
+  });
+}
\ No newline at end of file
diff --git a/devex-ui/src/mocks/handlers.ts b/devex-ui/src/mocks/handlers.ts
index 0b5aa5d3..f0c4096f 100644
--- a/devex-ui/src/mocks/handlers.ts
+++ b/devex-ui/src/mocks/handlers.ts
@@ -9,14 +9,15 @@ import {
   findTracesByCorrelationId, 
   generateEdges, 
   logStore, 
-  pushLog 
+  pushLog,
+  rolesStore
 } from './stores';
 import { makeEvent } from './factories/event.factory';
 import { makeLog } from './factories/log.factory';
 import { makeCommandRegistry } from './factories/registry.factory';
 
 export const handlers = [
-  // Registry handler
+  // Registry handlers
   http.get('/api/registry/commands', ({ request }) => {
     const url = new URL(request.url);
     const includeSchema = url.searchParams.get('includeSchema') === 'true';
@@ -26,6 +27,27 @@ export const handlers = [
       includeSchema ? registry : registry.map(({ schema, ...rest }) => rest)
     );
   }),
+
+  http.get('/api/registry/roles', ({ request }) => {
+    // Convert roles store data to the expected format
+    const rolesData = rolesStore.list(1000);
+    const result: Record<string, string[]> = {};
+
+    rolesData.forEach(entry => {
+      result[entry.domain] = entry.roles;
+    });
+
+    // If no roles are in the store, return default roles
+    if (Object.keys(result).length === 0) {
+      return HttpResponse.json({
+        system: ['tester', 'system', 'developer'],
+        user: ['admin', 'viewer'],
+        order: ['sales', 'ops']
+      });
+    }
+
+    return HttpResponse.json(result);
+  }),
   // Logs list
   http.get('/api/logs', ({ request }) => {
     const url = new URL(request.url);
diff --git a/devex-ui/src/mocks/scenarios/default.ts b/devex-ui/src/mocks/scenarios/default.ts
index 376718f1..c7232c2b 100644
--- a/devex-ui/src/mocks/scenarios/default.ts
+++ b/devex-ui/src/mocks/scenarios/default.ts
@@ -3,6 +3,7 @@ import { eventStore } from '../stores/event.store';
 import { commandStore, recentCommandsStore } from '../stores/command.store';
 import { traceStore } from '../stores/trace.store';
 import { logStore } from '../stores/log.store';
+import { rolesStore } from '../stores/roles.store';
 import { makeEvent } from '../factories/event.factory';
 import { makeCommand } from '../factories/command.factory';
 import { makeTrace } from '../factories/trace.factory';
@@ -20,6 +21,7 @@ export function loadDefault() {
   recentCommandsStore.reset();
   traceStore.reset();
   logStore.reset();
+  rolesStore.reset();
 
   // Get seed size from ENV var or use default
   const SEED_SIZE = Number(import.meta.env.VITE_SEED_SIZE ?? 200);
@@ -64,4 +66,42 @@ export function loadDefault() {
     payload: { systemId: "sys-002" },
     response: { success: false, error: "Simulation failed: Network timeout" }
   } as Command);
+
+  // Seed roles store with domain-specific roles
+  rolesStore.push({
+    id: 'system',
+    domain: 'system',
+    roles: ['tester', 'system', 'developer']
+  });
+
+  rolesStore.push({
+    id: 'user',
+    domain: 'user',
+    roles: ['admin', 'viewer']
+  });
+
+  rolesStore.push({
+    id: 'order',
+    domain: 'order',
+    roles: ['sales', 'ops']
+  });
+
+  rolesStore.push({
+    id: 'payment',
+    domain: 'payment',
+    roles: ['billing', 'auditor']
+  });
+
+  rolesStore.push({
+    id: 'catalog',
+    domain: 'catalog',
+    roles: ['manager', 'editor']
+  });
+
+  rolesStore.push({
+    id: 'inventory',
+    domain: 'inventory',
+    roles: ['stock', 'restocker']
+  });
+
 }
diff --git a/devex-ui/src/mocks/stores/index.ts b/devex-ui/src/mocks/stores/index.ts
index ea6d545a..d3391e1e 100644
--- a/devex-ui/src/mocks/stores/index.ts
+++ b/devex-ui/src/mocks/stores/index.ts
@@ -2,4 +2,5 @@
 export * from './command.store'
 export * from './event.store'
 export * from './log.store'
+export * from './roles.store'
 export * from './trace.store'
diff --git a/devex-ui/src/mocks/stores/roles.store.ts b/devex-ui/src/mocks/stores/roles.store.ts
new file mode 100644
index 00000000..20331f06
--- /dev/null
+++ b/devex-ui/src/mocks/stores/roles.store.ts
@@ -0,0 +1,19 @@
+import { createStore } from './createStore';
+
+// Define the role entry type with domain as id to satisfy Identifiable
+interface RoleEntry {
+  id: string;  // This will be the domain
+  domain: string;
+  roles: string[];
+}
+
+export const rolesStore = createStore<RoleEntry>();
+
+// Helper function to push a role entry using domain as id
+export const addRoleEntry = (domain: string, roles: string[]) => {
+  rolesStore.push({
+    id: domain,
+    domain,
+    roles
+  });
+};
\ No newline at end of file

From 223cd695447a12f7fc7f5634bbe19731b68b3f0f Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 02:49:57 -0700
Subject: [PATCH 13/21] feat(ui): improve tenant handling and role selection

devex-ui/src/components/CommandIssuer.tsx: Added role validity check with reaction to role changes using `useEffect`. Updated role selection to ensure it's dynamic, clear, and disabled until a command type is selected.
---
 devex-ui/src/components/CommandIssuer.tsx | 17 ++++++++++++++---
 devex-ui/src/components/Header.tsx        |  2 +-
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/devex-ui/src/components/CommandIssuer.tsx b/devex-ui/src/components/CommandIssuer.tsx
index a8ce494f..76035b29 100644
--- a/devex-ui/src/components/CommandIssuer.tsx
+++ b/devex-ui/src/components/CommandIssuer.tsx
@@ -280,6 +280,11 @@ export const CommandIssuer = () => {
   const selectedCommandSchema = commandRegistry.find(cmd => cmd.type === selectedCommand);
   const domain = selectedCommandSchema?.domain;
   const { data: roles = [] } = useRoles(domain);
+  useEffect(() => {
+    if (role && !roles.includes(role)) {
+      setRole(null);
+    }
+  }, [role, roles, setRole]);
 
   const toggleCommandExpansion = (commandId: string) => {
     setExpandedCommand(expandedCommand === commandId ? null : commandId);
@@ -342,9 +347,15 @@ export const CommandIssuer = () => {
 
               <div className="space-y-2">
                 <Label htmlFor="role" className="text-slate-300">Role</Label>
-                <Select value={role} onValueChange={setRole}>
-                  <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
-                    <SelectValue placeholder="Select role" />
+                <Select value={role ?? ''} onValueChange={setRole} disabled={!selectedCommand}>
+                <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
+                    <SelectValue placeholder={
+                      !selectedCommand
+                          ? "Roles populate with the selected command type"
+                          : role
+                              ? role
+                              : "Select a role"
+                    } />
                   </SelectTrigger>
                   <SelectContent className="bg-slate-800 border-slate-700">
                     {roles.map((r) => (
diff --git a/devex-ui/src/components/Header.tsx b/devex-ui/src/components/Header.tsx
index c1b8f756..a1f722c9 100644
--- a/devex-ui/src/components/Header.tsx
+++ b/devex-ui/src/components/Header.tsx
@@ -13,7 +13,7 @@ import { useAppCtx } from '@/app/AppProvider';
 import { isMock, apiMode } from '@/config/apiMode';
 import { Logo } from './Logo';
 
-const tenants = ['tenant-1','0af03580-98d5-4884-96e4-e75168d8b887'];
+const tenants = ['0af03580-98d5-4884-96e4-e75168d8b887'];
 
 export const Header = () => {
   const { tenant, setTenant } = useAppCtx();

From eda89c96cb11cbf3887162a23d8ef38ab0149525 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 03:00:16 -0700
Subject: [PATCH 14/21] docs(ADR): introduce local DevX companion UI ADR

src/devex-ui/: Added SPA with tabs for commands, events, projections, traces, and AI assistance. Enabled schema-driven forms, role validation, and simulation/replay functionality through ports-only backend.
---
 ADRs/022-devx-ui.md | 104 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 104 insertions(+)
 create mode 100644 ADRs/022-devx-ui.md

diff --git a/ADRs/022-devx-ui.md b/ADRs/022-devx-ui.md
new file mode 100644
index 00000000..36ab7ba5
--- /dev/null
+++ b/ADRs/022-devx-ui.md
@@ -0,0 +1,104 @@
+# ADR-022: **Local Side-panel Dev-X Companion**
+
+## 1 Context
+
+* The platform uses a ports-first, event-sourced architecture. Commands and events are routed through the same deterministic workflows used in production.
+* Developers previously relied on disparate tools (shell, `psql`, Temporal Web UI, Jaeger) to understand or simulate system behavior.
+* Postgres `LISTEN` channels (`new_event`, `new_command`) already feed into the local Temporal workers and projections.
+* Devs requested a unified, **local-first** DevEx console that enables:
+
+    1. Inspection, validation, and emission of commands/events
+    2. Viewing projection and trace state in real-time
+    3. Structured AI-assisted scaffolding (types, sagas, events, projections)
+    4. Replay/debug capabilities from the event log
+* The UI must reflect actual runtime constraints: multi-tenant, role-restricted command access, and full audit of side effects.
+
+---
+
+## 2-Decision
+
+### 2.1 High-Level View
+
+```
+┌─────────────┐
+│ DevEx UI SPA│  ← Tabs: Commands | Events | Traces | Replay | Projections | AI
+└─────┬───────┘
+      │ REST + SSE/WS
+┌─────▼──────────────┐
+│ /api (ports-only)  │ ← no direct DB access; calls EventStorePort, SagaRegistry, etc.
+│ + /api/ai-proxy    │ ← calls LLM with scoped context
+└─────┬──────────────┘
+      │
+┌─────▼────────────┐
+│ Postgres LISTEN  │ ← streams new_command + new_event (if WS)
+└─────┬────────────┘
+      ▼
+ ┌──────────────┐
+ │ AI + CLI     │ ← Generates `.patch` files for types & handlers (later ADR)
+ └──────────────┘
+```
+
+---
+
+### 2.2 Detailed Design Points
+
+| Aspect                | Decision                                                                                                                                                                       |
+| --------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| **Frontend**          | SPA under `src/devex-ui/`; includes tabs for Commands, Events, Projections, Traces, Aggregates, Rewind, AI.                                                                    |
+| **Command issuer**    | Fully type-aware with schema-based form generation. Role dropdown adapts dynamically to selected command domain, ensuring only valid roles appear.                             |
+| **Role validation**   | If selected role isn’t part of the domain's available roles, it is reset; the role selector UI reflects this with dynamic placeholders (“Select a role” or “Roles populate…”). |
+| **Registry source**   | `commandRegistry`, `rolesStore`, `eventRegistry`, `projectionRegistry`, `sagaRegistry` are exported from `core/registry.ts`; no hardcoded lists outside source-of-truth.       |
+| **Backend façade**    | `/api/*` routes use ports only (never call DB/Temporal directly). AI and scaffolding features run isolated from runtime mutations.                                             |
+| **AI Assist**         | `/api/ai-proxy` sends scoped context (selected domain/contract/slice) to LLM. Scaffold output includes `.patch` files only, with no auto-commit.                               |
+| **Replay + simulate** | Event streams are replayed against in-memory aggregates; what-if diffs are computed and shown as JSON state patches.                                                           |
+| **Security**          | No JWT in local mode; RLS still enforced if using a remote DB.                                                                                                                 |
+| **CLI parity**        | `devx ui` launches the SPA using same `.env` as CLI + workers.                                                                                                                 |
+
+---
+
+## 3-Behavior Summary
+
+### Commands Tab
+
+* Shows all available commands grouped by domain
+* Selecting a command shows schema-driven form and available roles (from `useRoles(domain)`)
+* Role selector resets if invalid; UI shows context-aware placeholder
+* On submission, command is POSTed to `/api/commands`, processed via normal ports
+* After dispatch, the corresponding trace is auto-expanded via correlation ID
+
+### AI Side-panel
+
+* **Chat Mode**: query behavior/state over event stream or aggregate
+* **Scaffold Mode**: wizard to generate new commands/events/sagas/types
+* **Simulator Mode**: run a hypothetical event chain through a rehydrated aggregate and preview resulting state diff
+
+---
+
+## 4-Consequences
+
+|                             | Positive                                                                                   | Trade-offs / Mitigations                                                                 |
+| --------------------------- | ------------------------------------------------------------------------------------------ | ---------------------------------------------------------------------------------------- |
+| **Unified DevEx dashboard** | Full visibility into all domain slices, including real-time traces, without context switch | WebSocket LISTEN loop may become noisy → supports throttle env var in `.env`             |
+| **Determinism preserved**   | All command submissions flow through existing routing and validation                       | Incomplete schema = validation failure; schema coverage enforced at registry level       |
+| **Safe scaffolding**        | `.patch` files are generated but not committed                                             | Prevents unsafe auto-writes; CI ensures schema + unit coverage post-patch                |
+| **Zero infra requirement**  | Works with docker-compose stack + local Postgres                                           | If pointing to shared DB, advise dev pods only run LISTEN to avoid shared fan-out noise  |
+| **Context-aware UI**        | Domain → Roles → Payload schema chaining enforced in UI                                    | Role edge cases must be handled when registry mismatches occur (e.g. outdated role list) |
+
+---
+
+## 5-Rejected Alternatives
+
+| Option                   | Reason for Rejection                                                                    |
+| ------------------------ | --------------------------------------------------------------------------------------- |
+| Full Electron App        | Unnecessary packaging overhead; SPA already integrates cleanly with CLI and local stack |
+| Retool / External Studio | Breaks invariants, bypasses RLS and command auditing                                    |
+| Auto Git Commits         | All scaffolds must be reviewed; early .patch outputs are often exploratory              |
+
+---
+
+## Future Considerations
+
+1. Add `useRoles(domain)` + auto-reset logic into CommandIssuer UI
+2. Wire WS/SSE `/api/stream/commands` and `/api/stream/events` to feed DevEx console tabs
+3. Enable `.patch` output from scaffold mode and render diff preview before saving...AI scaffolding begs for its own ADR
+4. Add in-memory replay of event chains into “What-if Simulator” tab...begs for its own ADR

From 37e97944d4d9d07a53d47b3291e1eacb1455b1bd Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 03:29:26 -0700
Subject: [PATCH 15/21] feat(ci): add DevX UI build workflow

README.md: Added badge for DevX UI build status to enhance visibility.
.github/workflows/build.yml: Renamed workflow to clarify its scope as Core and Infra build.
.github/workflows/devx-ui-build.yml: Introduced a dedicated CI workflow for DevX UI, including build steps, caching, and dependency installation specific to the devex-ui directory.
---
 .github/workflows/build.yml         |  2 +-
 .github/workflows/devx-ui-build.yml | 28 ++++++++++++++++++++++++++++
 README.md                           |  1 +
 3 files changed, 30 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/devx-ui-build.yml

diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6c194d3c..4d40524c 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -1,4 +1,4 @@
-name: Build
+name: Core and Infra Build
 
 on:
   pull_request:
diff --git a/.github/workflows/devx-ui-build.yml b/.github/workflows/devx-ui-build.yml
new file mode 100644
index 00000000..b64f0019
--- /dev/null
+++ b/.github/workflows/devx-ui-build.yml
@@ -0,0 +1,28 @@
+name: DevX Build
+
+on:
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '22'
+          cache: 'npm'
+
+      - uses: actions/cache@v3
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-npm-${{ hashFiles('package-lock.json') }}
+          restore-keys: |
+            ${{ runner.os }}-npm-
+
+      - run: npm ci
+        working-directory: devex-ui
+      - run: npm run build
+        working-directory: devex-ui
diff --git a/README.md b/README.md
index dc0f3b9e..dfb7044f 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,7 @@
 [![CI](https://github.com/geeewhy/intent/actions/workflows/unit-tests.yml/badge.svg)](https://github.com/geeewhy/intent/actions/workflows/unit-tests.yml)
 [![CI](https://github.com/geeewhy/intent/actions/workflows/core-linter.yml/badge.svg)](https://github.com/geeewhy/intent/actions/workflows/core-linter.yml)
 [![CI](https://github.com/geeewhy/intent/actions/workflows/projection-linter.yml/badge.svg)](https://github.com/geeewhy/intent/actions/workflows/projection-linter.yml)
+[![CI](https://github.com/geeewhy/intent/actions/workflows/devx-ui-build.yml/badge.svg)](https://github.com/geeewhy/intent/actions/workflows/devx-ui-build.yml)
 
 > **Intent** turns event-sourcing theory into a platform you can demo in five minutes. It’s a pragmatic, ports-first reference for multi-tenant, event-sourced CQRS back-ends powered by TypeScript and uses [Temporal](https://github.com/temporalio/temporal) for durable workflow execution.
 

From 633a0038e5cc3082939330fa96ed145ce4816ef7 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 04:26:08 -0700
Subject: [PATCH 16/21] feat(core): enhance logging, policy, and linting
 robustness

src/core/policy-registry.ts: Added condition map getter and registered access models for evaluation and debugging purposes, improved policy registration.
src/core/logger.ts: Introduced `createLogger` method for scoped logger instances within the core.
src/tools/core-lint/index.ts: Expanded linting to validate roles against access models
---
 src/core/initialize.ts       |  2 +-
 src/core/logger.ts           | 10 ++++++++
 src/core/policy-registry.ts  |  8 ++++++
 src/core/system/register.ts  |  2 +-
 src/tools/core-lint/index.ts | 49 +++++++++++++++++++++++++++++++-----
 5 files changed, 63 insertions(+), 8 deletions(-)

diff --git a/src/core/initialize.ts b/src/core/initialize.ts
index 0d97c7d5..8975a93b 100644
--- a/src/core/initialize.ts
+++ b/src/core/initialize.ts
@@ -11,7 +11,7 @@ import './system/register';
  * @returns A promise that resolves when initialization is complete
  */
 export async function initializeCore() {
-  console.log('Core initialized with:');
+  console.log('Core initialized');
   console.log(`- ${Object.keys(DomainRegistry.domains()).length} domains`);
   console.log(`- ${Object.keys(DomainRegistry.aggregates()).length} aggregates`);
   console.log(`- ${Object.keys(DomainRegistry.commandHandlers()).length} command handlers`);
diff --git a/src/core/logger.ts b/src/core/logger.ts
index 1de6ac72..47fd0e52 100644
--- a/src/core/logger.ts
+++ b/src/core/logger.ts
@@ -16,6 +16,16 @@ export function log(): LoggerPort | undefined {
 }
 
 // Helper functions for handlers as examples in core
+
+export function createLogger(): LoggerPort | undefined {
+    const logger = log();
+    if (!logger) return undefined;
+
+    return logger.child({
+        component: 'core'
+    });
+}
+
 export function createLoggerForCommandHandler(handler: CommandHandler): LoggerPort | undefined {
     const logger = log();
     if (!logger) return undefined;
diff --git a/src/core/policy-registry.ts b/src/core/policy-registry.ts
index dde6e9b1..fb6d72f3 100644
--- a/src/core/policy-registry.ts
+++ b/src/core/policy-registry.ts
@@ -29,7 +29,12 @@ export function listRegisteredConditions() {
     return Object.keys(conditionMap).sort();
 }
 
+export function getConditionMap(): Record<string, (args: any) => boolean> {
+    return { ...conditionMap }; // read-only clone
+}
+
 type RoleAccessMap = Record<string, string[]>;
+export const RegisteredAccessModels: Record<string, RoleAccessMap> = {};
 
 export function registerCommandConditionsFromModel(
     namespace: string,
@@ -47,5 +52,8 @@ export function registerCommandConditionsFromModel(
             model[role]?.includes(cmd)
         );
     });
+
+    RegisteredAccessModels[namespace] = model;
+
     return registeredConditions;
 }
diff --git a/src/core/system/register.ts b/src/core/system/register.ts
index 52de797d..c66db201 100644
--- a/src/core/system/register.ts
+++ b/src/core/system/register.ts
@@ -62,7 +62,7 @@ export function registerSystemDomain(): void {
   });
 
   // Register roles
-  registerRoles('system', ['tester', 'system', 'developer']);
+   registerRoles('system', ['tester', 'system', 'developer']);
 }
 
 // Auto-register when imported
diff --git a/src/tools/core-lint/index.ts b/src/tools/core-lint/index.ts
index 1dbd6bfc..6d576895 100755
--- a/src/tools/core-lint/index.ts
+++ b/src/tools/core-lint/index.ts
@@ -1,14 +1,16 @@
 #!/usr/bin/env node
-
 //src/tools/core-lint/index.ts
 /**
  * Lint-core tool
  *
- * Placeholder.
- * Currently, checks that all registered commands with a payloadSchema also declare aggregateRouting (if not saga-only)
+ * 1. Checks that all registered commands with a payloadSchema also declare aggregateRouting (if not saga-only)
+ * 2. Extracts roles from condition functions and compares them against registered roles
  */
 
 import { DomainRegistry } from '../../core/registry';
+import {getConditionMap, RegisteredAccessModels} from '../../core/policy-registry';
+import initializeCore from "../../core/initialize";
+void initializeCore();
 
 // Get all registered command types
 const commandTypes = DomainRegistry.commandTypes();
@@ -27,12 +29,47 @@ Object.entries(commandTypes).forEach(([type, meta]) => {
   }
 });
 
+/**
+ * OBSOLETE
+ * Extract roles from a function by analyzing its string representation
+ * @param fn Function to analyze
+ * @returns Array of extracted role strings
+ */
+/*function extractRolesFromFn(fn: Function): string[] {
+  const src = fn.toString();
+  console.log(src);
+
+  const includesMatch = src.match(/\[\s*(['"][^'"]+['"](?:\s*,\s*['"][^'"]+['"])*)\s*\]\.includes\s*\(\s*role\s*\)/);
+  const equalityMatches = [...src.matchAll(/role\s*[=!]=+\s*['"]([a-zA-Z0-9_-]+)['"]/g)].map(m => m[1]);
+
+  let includesRoles: string[] = [];
+  if (includesMatch) {
+    const list = includesMatch[1];
+    includesRoles = list.split(',').map(s => s.trim().replace(/['"]/g, ''));
+  }
+
+  return [...new Set([...includesRoles, ...equalityMatches])];
+}*/
+
+// Get registered roles by domain
+const rolesByDomain = DomainRegistry.roles();
+
+Object.entries(RegisteredAccessModels).forEach(([domain, roleToCmds]) => {
+  const inferredRoles = Object.keys(roleToCmds);
+  const declaredRoles = rolesByDomain[domain] ?? [];
+
+  const undeclared = inferredRoles.filter(r => !declaredRoles.includes(r));
+  if (undeclared.length > 0) {
+    issues.push(`Domain '${domain}' uses unregistered roles: ${undeclared.join(', ')}`);
+  }
+});
+
 // Report results
 if (issues.length > 0) {
-  console.error('Payload linting found issues:');
+  console.error('❌ Core linting found issues:');
   issues.forEach(issue => console.error(`- ${issue}`));
   process.exit(1);
 } else {
-  console.log('All command payloads have proper routing configuration.');
+  console.log('✅ All core linting checks passed.');
   process.exit(0);
-}
\ No newline at end of file
+}

From 75ad101235ee06823e69614ef328bbcc6e78d0d8 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 04:27:08 -0700
Subject: [PATCH 17/21] refactor(core-lint): clean up imports

---
 src/tools/core-lint/index.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/tools/core-lint/index.ts b/src/tools/core-lint/index.ts
index 6d576895..230fafce 100755
--- a/src/tools/core-lint/index.ts
+++ b/src/tools/core-lint/index.ts
@@ -8,7 +8,7 @@
  */
 
 import { DomainRegistry } from '../../core/registry';
-import {getConditionMap, RegisteredAccessModels} from '../../core/policy-registry';
+import {RegisteredAccessModels} from '../../core/policy-registry';
 import initializeCore from "../../core/initialize";
 void initializeCore();
 

From 3c685f2b7aa142aab387ad7182cee2ac53019515 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 04:35:48 -0700
Subject: [PATCH 18/21] docs(tools): add core domain linting tool READMEs

---
 src/tools/README.md           |  1 +
 src/tools/core-lint/README.md | 37 +++++++++++++++++++++++++++++++++++
 2 files changed, 38 insertions(+)
 create mode 100644 src/tools/core-lint/README.md

diff --git a/src/tools/README.md b/src/tools/README.md
index 8275a14c..29136346 100644
--- a/src/tools/README.md
+++ b/src/tools/README.md
@@ -10,6 +10,7 @@ This directory contains various tools for managing and configuring the platform.
 | [Projection Drift Check Tool](projections-drift-check/README.md) | Checks for drift between projection definitions in code and actual database tables.         |
 | [Projection Repair Tool](projections-repair/README.md)           | Repairs drift between projection definitions in code and actual database tables.            |
 | [Projection RLS Policy Linter](projections-lint/README.md)       | Validates the structure, completeness, and correctness of all ReadAccessPolicy definitions. |
+| [Core Domain Linter](core-lint/README.md)                        | Validates that all commands declare routing, and all role-based policies register their required roles. |
 
 ## Usage
 
diff --git a/src/tools/core-lint/README.md b/src/tools/core-lint/README.md
new file mode 100644
index 00000000..d28d210d
--- /dev/null
+++ b/src/tools/core-lint/README.md
@@ -0,0 +1,37 @@
+# Core Linting Tool
+
+A utility for validating the consistency of core domain components in the codebase.
+
+## Usage
+
+Run the linter with:
+
+```bash
+npm run tool:core-lint
+```
+
+## What It Checks
+
+The core linter performs the following validations:
+
+1. **Command Payload Routing**: Ensures that all registered commands with a payload schema also declare proper aggregate routing (if not saga-only).
+
+2. **Role Consistency**: Extracts roles from condition functions and compares them against registered roles to identify any unregistered roles being used in access policies.
+
+## Output
+
+When all checks pass:
+```
+✅ All core linting checks passed.
+```
+
+When issues are found:
+```
+❌ Core linting found issues:
+- Command type 'domain.command' has a payloadSchema but no aggregateRouting
+- Domain 'domain' uses unregistered roles: role1, role2
+```
+
+## Integration
+
+This tool is integrated into the CI pipeline to ensure code quality and consistency across the codebase.

From 54733b22e465e0ba2ccabd1029f3ee194e9cf9d7 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 22:09:05 -0700
Subject: [PATCH 19/21] feat(error-handling): enhance error serialization and
 structure

src/infra/logger/stdLogger.ts: Improved errorSerializer with custom fields support and fallback robustness for structured logging.
src/core/errors.ts: Refactored BusinessRuleViolation with retryable flag, details, JSON support, and stack trace enhancement.
src/api/routes/commands.ts: Added BusinessRuleViolation import for comprehensive error handling.
src/infra/contracts.ts, src/infra/temporal/workflows/processCommand.ts: Updated CommandResult error type to Error for consistency.
package.json: Added `api:admin:watch` script for improved developer convenience during development.
devex-ui/, devex-ui/src/components/CommandIssuer.tsx: Addressed formatting and alignment for consistent code styling.
---
 devex-ui/src/components/CommandIssuer.tsx     | 1097 +++++++++--------
 devex-ui/src/data/types.ts                    |    7 +-
 package.json                                  |    1 +
 src/api/routes/commands.ts                    |    1 +
 src/core/errors.ts                            |   47 +-
 .../system/aggregates/system.aggregate.ts     |   15 +-
 src/infra/contracts.ts                        |    2 +-
 src/infra/logger/apiLogger.ts                 |    3 +-
 src/infra/logger/stdLogger.ts                 |   47 +-
 .../temporal/activities/coreActivities.ts     |    9 +-
 src/infra/temporal/temporal-scheduler.ts      |    2 +-
 src/infra/temporal/workflow-router.ts         |   18 +-
 .../temporal/workflows/processCommand.ts      |    2 +-
 13 files changed, 676 insertions(+), 575 deletions(-)

diff --git a/devex-ui/src/components/CommandIssuer.tsx b/devex-ui/src/components/CommandIssuer.tsx
index 76035b29..14fc8894 100644
--- a/devex-ui/src/components/CommandIssuer.tsx
+++ b/devex-ui/src/components/CommandIssuer.tsx
@@ -1,569 +1,602 @@
 //devex-ui/src/components/CommandIssuer.tsx
-import { useState, useEffect } from "react";
-import { Button } from "@/components/ui/button";
-import { Input } from "@/components/ui/input";
-import { Label } from "@/components/ui/label";
-import { Textarea } from "@/components/ui/textarea";
-import { Card, CardHeader, CardTitle, CardContent } from "@/components/ui/card";
-import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
-import { Badge } from "@/components/ui/badge";
-import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
-import { Clock, Send, RotateCcw, Terminal, ChevronDown, ChevronRight, RefreshCw, AlertCircle } from "lucide-react";
-import { useCommands, useSubmitCommand, useRoles } from "@/hooks/api";
-import { validate, registerSchemas } from "@/utils/schemaValidator";
-import { makeExample } from "@/utils/schemaFaker";
-import { toast } from "@/components/ui/sonner";
-import { useAppCtx } from '@/app/AppProvider';
-import { useQuery } from "@tanstack/react-query";
-import { fetchCommandRegistry } from "@/data/apiService";
-import { cn } from "@/lib/utils";
+import {useState, useEffect} from "react";
+import {Button} from "@/components/ui/button";
+import {Input} from "@/components/ui/input";
+import {Label} from "@/components/ui/label";
+import {Textarea} from "@/components/ui/textarea";
+import {Card, CardHeader, CardTitle, CardContent} from "@/components/ui/card";
+import {Select, SelectContent, SelectItem, SelectTrigger, SelectValue} from "@/components/ui/select";
+import {Badge} from "@/components/ui/badge";
+import {Tabs, TabsContent, TabsList, TabsTrigger} from "@/components/ui/tabs";
+import {Clock, Send, RotateCcw, Terminal, ChevronDown, ChevronRight, RefreshCw, AlertCircle} from "lucide-react";
+import {useCommands, useSubmitCommand, useRoles} from "@/hooks/api";
+import {validate, registerSchemas} from "@/utils/schemaValidator";
+import {makeExample} from "@/utils/schemaFaker";
+import {toast} from "@/components/ui/sonner";
+import {useAppCtx} from '@/app/AppProvider';
+import {useQuery} from "@tanstack/react-query";
+import {fetchCommandRegistry} from "@/data/apiService";
+import {cn} from "@/lib/utils";
 
 export const CommandIssuer = () => {
-  const { tenant, role, setRole } = useAppCtx();
-  const [selectedCommand, setSelectedCommand] = useState("");
-  const [payload, setPayload] = useState("");
-  const [formData, setFormData] = useState<Record<string, unknown>>({});
-  const [payloadView, setPayloadView] = useState<"form" | "json">("form");
-  const [expandedCommand, setExpandedCommand] = useState<string | null>(null);
-  const [validationErrors, setValidationErrors] = useState<string[]>([]);
-  const [invalidFields, setInvalidFields] = useState<Set<string>>(new Set());
-  const [lastSubmittedId, setLastSubmittedId] = useState<string | null>(null);
-  const [highlightedCommandId, setHighlightedCommandId] = useState<string | null>(null);
-
-  // Use React Query hooks
-  const { data: recentCommands = [] } = useCommands(tenant, 10);
-  const { mutate: submitCommandMutation, isPending: isSubmitting } = useSubmitCommand();
-  const { data: commandRegistry = [], isLoading: isLoadingRegistry } = useQuery({
-    queryKey: ['commandRegistry'],
-    queryFn: fetchCommandRegistry,
-    staleTime: Infinity
-  });
-
-  // Register schemas when registry is loaded
-  useEffect(() => {
-    if (commandRegistry.length > 0) {
-      registerSchemas(commandRegistry);
-    }
-  }, [commandRegistry]);
-
-  // Extract field names from validation error messages
-  const extractFieldNames = (errors: string[]): Set<string> => {
-    const fieldNames = new Set<string>();
-    errors.forEach(error => {
-      // Common AJV error patterns like "must have required property 'fieldName'" or "should be string (fieldName)"
-      const requiredMatch = error.match(/must have required property '(\w+)'/);
-      const typeMatch = error.match(/should be \w+ \((\w+)\)/);
-
-      if (requiredMatch && requiredMatch[1]) {
-        fieldNames.add(requiredMatch[1]);
-      } else if (typeMatch && typeMatch[1]) {
-        fieldNames.add(typeMatch[1]);
-      }
+    const {tenant, role, setRole} = useAppCtx();
+    const [selectedCommand, setSelectedCommand] = useState("");
+    const [payload, setPayload] = useState("");
+    const [formData, setFormData] = useState<Record<string, unknown>>({});
+    const [payloadView, setPayloadView] = useState<"form" | "json">("form");
+    const [expandedCommand, setExpandedCommand] = useState<string | null>(null);
+    const [validationErrors, setValidationErrors] = useState<string[]>([]);
+    const [invalidFields, setInvalidFields] = useState<Set<string>>(new Set());
+    const [lastSubmittedId, setLastSubmittedId] = useState<string | null>(null);
+    const [highlightedCommandId, setHighlightedCommandId] = useState<string | null>(null);
+
+    // Use React Query hooks
+    const {data: recentCommands = []} = useCommands(tenant, 10);
+    const {mutate: submitCommandMutation, isPending: isSubmitting} = useSubmitCommand();
+    const {data: commandRegistry = [], isLoading: isLoadingRegistry} = useQuery({
+        queryKey: ['commandRegistry'],
+        queryFn: fetchCommandRegistry,
+        staleTime: Infinity
     });
-    return fieldNames;
-  };
-
-  const handleSubmit = () => {
-    // Clear previous validation errors
-    setValidationErrors([]);
-    setInvalidFields(new Set());
-
-    // Get the payload based on the current view
-    const payloadData = payloadView === "form" ? formData : (() => {
-      try {
-        return JSON.parse(payload || '{}');
-      } catch (e) {
-        setValidationErrors(['Invalid JSON format']);
-        toast.error('Invalid JSON format', {
-          description: 'Please check your JSON syntax and try again.'
+
+    // Register schemas when registry is loaded
+    useEffect(() => {
+        if (commandRegistry.length > 0) {
+            registerSchemas(commandRegistry);
+        }
+    }, [commandRegistry]);
+
+    // Extract field names from validation error messages
+    const extractFieldNames = (errors: string[]): Set<string> => {
+        const fieldNames = new Set<string>();
+        errors.forEach(error => {
+            // Common AJV error patterns like "must have required property 'fieldName'" or "should be string (fieldName)"
+            const requiredMatch = error.match(/must have required property '(\w+)'/);
+            const typeMatch = error.match(/should be \w+ \((\w+)\)/);
+
+            if (requiredMatch && requiredMatch[1]) {
+                fieldNames.add(requiredMatch[1]);
+            } else if (typeMatch && typeMatch[1]) {
+                fieldNames.add(typeMatch[1]);
+            }
+        });
+        return fieldNames;
+    };
+
+    const handleSubmit = () => {
+        // Clear previous validation errors
+        setValidationErrors([]);
+        setInvalidFields(new Set());
+
+        // Get the payload based on the current view
+        const payloadData = payloadView === "form" ? formData : (() => {
+            try {
+                return JSON.parse(payload || '{}');
+            } catch (e) {
+                setValidationErrors(['Invalid JSON format']);
+                toast.error('Invalid JSON format', {
+                    description: 'Please check your JSON syntax and try again.'
+                });
+                return null;
+            }
+        })();
+
+        // If JSON parsing failed, don't proceed
+        if (payloadData === null) return;
+
+        // Validate the payload against the command schema
+        const {ok, errors} = validate(selectedCommand, payloadData);
+
+        if (!ok) {
+            setValidationErrors(errors);
+
+            // Extract field names from errors and set invalid fields
+            const fieldNames = extractFieldNames(errors);
+            setInvalidFields(fieldNames);
+
+            // Show toast with validation errors
+            toast.error('Command validation failed', {
+                description: (
+                    <ul className="list-disc pl-4 mt-2 space-y-1">
+                        {errors.map((error, index) => (
+                            <li key={index} className="text-sm">{error}</li>
+                        ))}
+                    </ul>
+                )
+            });
+
+            return;
+        }
+
+        const commandPayload = {
+            id: crypto.randomUUID(),
+            tenant_id: tenant,
+            type: selectedCommand,
+            payload: payloadData,
+            metadata: {
+                timestamp: new Date().toISOString(),
+                userId: crypto.randomUUID(),
+                role,
+                source: 'devx/command-issuer'
+            }
+        };
+
+        console.log('Submitting command:', commandPayload);
+
+        submitCommandMutation(commandPayload, {
+            onSuccess: (result) => {
+                console.log('Command submission result:', result);
+
+                if (result.status === 'success') {
+                    toast.success('Command executed', {
+                        description: `${result.events?.length > 0 ? result.events?.length + 'event(s) produced' : ''}`
+                    });
+
+                    // Set the last submitted ID
+                    setLastSubmittedId(commandPayload.id);
+                    setHighlightedCommandId(commandPayload.id);
+
+                    setTimeout(() => {
+                        setHighlightedCommandId(null);
+                    }, 500);
+
+                    // Reset form
+                    setPayload("");
+                    setFormData({});
+                    setValidationErrors([]);
+                    setInvalidFields(new Set());
+                } else {
+                    const msg =
+                        result.error?.name
+                            ? `${result.error.name || 'Error'}: ${result.error.message}`
+                            : result.error?.message ?? 'Unknown error';
+
+                    const details = result.error?.details?.message;
+
+                    toast.error('Command failed', {
+                        description: (
+                            <>
+                                {msg}
+                                {details ? (
+                                    <>
+                                        <br />
+                                        <sub>{details}</sub>
+                                    </>
+                                ) : null}
+                            </>
+                        ),
+                    });
+                }
+            },
+            onError: (error) => {
+                console.error('Command submission failed:', error);
+
+                // Show error toast
+                toast.error('Command submission failed', {
+                    description: error instanceof Error ? error.message : 'An unknown error occurred'
+                });
+            }
         });
-        return null;
-      }
-    })();
-
-    // If JSON parsing failed, don't proceed
-    if (payloadData === null) return;
-
-    // Validate the payload against the command schema
-    const { ok, errors } = validate(selectedCommand, payloadData);
-
-    if (!ok) {
-      setValidationErrors(errors);
-
-      // Extract field names from errors and set invalid fields
-      const fieldNames = extractFieldNames(errors);
-      setInvalidFields(fieldNames);
-
-      // Show toast with validation errors
-      toast.error('Command validation failed', {
-        description: (
-          <ul className="list-disc pl-4 mt-2 space-y-1">
-            {errors.map((error, index) => (
-              <li key={index} className="text-sm">{error}</li>
-            ))}
-          </ul>
-        )
-      });
-
-      return;
-    }
-
-    const commandPayload = {
-      id: crypto.randomUUID(),
-      tenant_id: tenant,
-      type: selectedCommand,
-      payload: payloadData,
-      metadata: {
-        timestamp: new Date().toISOString(),
-        userId: crypto.randomUUID(),
-        role,
-        source: 'devx/command-issuer'
-      }
     };
 
-    console.log('Submitting command:', commandPayload);
 
-    submitCommandMutation(commandPayload, {
-      onSuccess: (result) => {
-        console.log('Command submission result:', result);
+    const handleFormDataChange = (key: string, value: unknown) => {
+        const newFormData = {...formData, [key]: value};
+        setFormData(newFormData);
+        setPayload(JSON.stringify(newFormData, null, 2));
+    };
 
-        if (result.status === 'success') {
-          toast.success('Command executed', {
-            description: `${result.events?.length > 0 ? result.events?.length + 'event(s) produced' : ''}`
-          });
+    const handlePayloadChange = (value: string) => {
+        setPayload(value);
+        try {
+            const parsed = JSON.parse(value);
+            setFormData(parsed);
+        } catch (e) {
+            // Invalid JSON, keep form data as is
+        }
+    };
 
-          // Set the last submitted ID
-          setLastSubmittedId(commandPayload.id);
-          setHighlightedCommandId(commandPayload.id);
 
-          setTimeout(() => {
-            setHighlightedCommandId(null);
-          }, 500);
+    const renderFormField = (key: string, prop: Record<string, unknown>, required: boolean) => {
+        const value = formData[key] || '';
+        const isIdField = key.includes('Id');
+        const isInvalid = invalidFields.has(key);
 
-          // Reset form
-          setPayload("");
-          setFormData({});
-          setValidationErrors([]);
-          setInvalidFields(new Set());
-        } else {
-          toast.error('Command failed', {
-            description: 'Error:' + result.error || 'Unknown failure'
-          });
+        switch (prop.type) {
+            case 'string':
+                return (
+                    <div key={key} className="flex items-center gap-3">
+                        <Label htmlFor={key}
+                               className={`${isInvalid ? 'text-red-400' : 'text-slate-300'} min-w-[100px] text-sm`}>
+                            {key} {required && <span className="text-red-400">*</span>}
+                            {isInvalid && <span className="ml-1">⚠️</span>}
+                        </Label>
+                        <div className="flex gap-2 flex-1">
+                            <Input
+                                id={key}
+                                value={value}
+                                onChange={(e) => handleFormDataChange(key, e.target.value)}
+                                placeholder={`Enter ${key}`}
+                                className={`bg-slate-800 ${isInvalid ? 'border-red-500' : 'border-slate-700'} text-slate-100 h-8 ${isInvalid ? 'focus-visible:ring-red-500' : ''}`}
+                            />
+                            {isIdField && (
+                                <Button
+                                    type="button"
+                                    variant="outline"
+                                    size="icon"
+                                    onClick={() => handleFormDataChange(key, isIdField ? crypto.randomUUID() : `sample-${key}`)}
+                                    className="bg-slate-800 border-slate-700 hover:bg-slate-700 h-8 w-8"
+                                >
+                                    <RefreshCw className="h-3 w-3"/>
+                                </Button>
+                            )}
+                        </div>
+                    </div>
+                );
+            case 'number':
+                return (
+                    <div key={key} className="flex items-center gap-3">
+                        <Label htmlFor={key}
+                               className={`${isInvalid ? 'text-red-400' : 'text-slate-300'} min-w-[100px] text-sm`}>
+                            {key} {required && <span className="text-red-400">*</span>}
+                            {isInvalid && <span className="ml-1">⚠️</span>}
+                        </Label>
+                        <Input
+                            id={key}
+                            type="number"
+                            value={value}
+                            onChange={(e) => handleFormDataChange(key, Number(e.target.value))}
+                            placeholder={`Enter ${key}`}
+                            className={`bg-slate-800 ${isInvalid ? 'border-red-500' : 'border-slate-700'} text-slate-100 h-8 ${isInvalid ? 'focus-visible:ring-red-500' : ''}`}
+                        />
+                    </div>
+                );
+            case 'object':
+                return (
+                    <div key={key} className="space-y-2">
+                        <Label htmlFor={key} className={`${isInvalid ? 'text-red-400' : 'text-slate-300'} text-sm`}>
+                            {key} {required && <span className="text-red-400">*</span>}
+                            {isInvalid && <span className="ml-1">⚠️</span>}
+                        </Label>
+                        <Textarea
+                            id={key}
+                            value={typeof value === 'object' ? JSON.stringify(value, null, 2) : value}
+                            onChange={(e) => {
+                                try {
+                                    const parsed = JSON.parse(e.target.value);
+                                    handleFormDataChange(key, parsed);
+                                } catch {
+                                    handleFormDataChange(key, e.target.value);
+                                }
+                            }}
+                            placeholder={`Enter ${key} as JSON`}
+                            className={`bg-slate-800 ${isInvalid ? 'border-red-500' : 'border-slate-700'} text-slate-100 font-mono text-sm h-20 ${isInvalid ? 'focus-visible:ring-red-500' : ''}`}
+                        />
+                    </div>
+                );
+            default:
+                return (
+                    <div key={key} className="flex items-center gap-3">
+                        <Label htmlFor={key}
+                               className={`${isInvalid ? 'text-red-400' : 'text-slate-300'} min-w-[100px] text-sm`}>
+                            {key} {required && <span className="text-red-400">*</span>}
+                            {isInvalid && <span className="ml-1">⚠️</span>}
+                        </Label>
+                        <Input
+                            id={key}
+                            value={value}
+                            onChange={(e) => handleFormDataChange(key, e.target.value)}
+                            placeholder={`Enter ${key}`}
+                            className={`bg-slate-800 ${isInvalid ? 'border-red-500' : 'border-slate-700'} text-slate-100 h-8 ${isInvalid ? 'focus-visible:ring-red-500' : ''}`}
+                        />
+                    </div>
+                );
+        }
+    };
 
-          // Keep form open (do not reset anything)
+    const selectedCommandSchema = commandRegistry.find(cmd => cmd.type === selectedCommand);
+    const domain = selectedCommandSchema?.domain;
+    const {data: roles = []} = useRoles(domain);
+    useEffect(() => {
+        if (role && !roles.includes(role)) {
+            setRole(null);
         }
-      },
-      onError: (error) => {
-        console.error('Command submission failed:', error);
+    }, [role, roles, setRole]);
 
-        // Show error toast
-        toast.error('Command submission failed', {
-          description: error instanceof Error ? error.message : 'An unknown error occurred'
-        });
-      }
-    });
-  };
-
-
-
-  const handleFormDataChange = (key: string, value: unknown) => {
-    const newFormData = { ...formData, [key]: value };
-    setFormData(newFormData);
-    setPayload(JSON.stringify(newFormData, null, 2));
-  };
-
-  const handlePayloadChange = (value: string) => {
-    setPayload(value);
-    try {
-      const parsed = JSON.parse(value);
-      setFormData(parsed);
-    } catch (e) {
-      // Invalid JSON, keep form data as is
-    }
-  };
-
-
-  const renderFormField = (key: string, prop: Record<string, unknown>, required: boolean) => {
-    const value = formData[key] || '';
-    const isIdField = key.includes('Id');
-    const isInvalid = invalidFields.has(key);
-
-    switch (prop.type) {
-      case 'string':
-        return (
-          <div key={key} className="flex items-center gap-3">
-            <Label htmlFor={key} className={`${isInvalid ? 'text-red-400' : 'text-slate-300'} min-w-[100px] text-sm`}>
-              {key} {required && <span className="text-red-400">*</span>}
-              {isInvalid && <span className="ml-1">⚠️</span>}
-            </Label>
-            <div className="flex gap-2 flex-1">
-              <Input
-                id={key}
-                value={value}
-                onChange={(e) => handleFormDataChange(key, e.target.value)}
-                placeholder={`Enter ${key}`}
-                className={`bg-slate-800 ${isInvalid ? 'border-red-500' : 'border-slate-700'} text-slate-100 h-8 ${isInvalid ? 'focus-visible:ring-red-500' : ''}`}
-              />
-              {isIdField && (
-                <Button
-                  type="button"
-                  variant="outline"
-                  size="icon"
-                  onClick={() => handleFormDataChange(key, isIdField ? crypto.randomUUID() : `sample-${key}`)}
-                  className="bg-slate-800 border-slate-700 hover:bg-slate-700 h-8 w-8"
-                >
-                  <RefreshCw className="h-3 w-3" />
-                </Button>
-              )}
-            </div>
-          </div>
-        );
-      case 'number':
-        return (
-          <div key={key} className="flex items-center gap-3">
-            <Label htmlFor={key} className={`${isInvalid ? 'text-red-400' : 'text-slate-300'} min-w-[100px] text-sm`}>
-              {key} {required && <span className="text-red-400">*</span>}
-              {isInvalid && <span className="ml-1">⚠️</span>}
-            </Label>
-            <Input
-              id={key}
-              type="number"
-              value={value}
-              onChange={(e) => handleFormDataChange(key, Number(e.target.value))}
-              placeholder={`Enter ${key}`}
-              className={`bg-slate-800 ${isInvalid ? 'border-red-500' : 'border-slate-700'} text-slate-100 h-8 ${isInvalid ? 'focus-visible:ring-red-500' : ''}`}
-            />
-          </div>
-        );
-      case 'object':
-        return (
-          <div key={key} className="space-y-2">
-            <Label htmlFor={key} className={`${isInvalid ? 'text-red-400' : 'text-slate-300'} text-sm`}>
-              {key} {required && <span className="text-red-400">*</span>}
-              {isInvalid && <span className="ml-1">⚠️</span>}
-            </Label>
-            <Textarea
-              id={key}
-              value={typeof value === 'object' ? JSON.stringify(value, null, 2) : value}
-              onChange={(e) => {
-                try {
-                  const parsed = JSON.parse(e.target.value);
-                  handleFormDataChange(key, parsed);
-                } catch {
-                  handleFormDataChange(key, e.target.value);
-                }
-              }}
-              placeholder={`Enter ${key} as JSON`}
-              className={`bg-slate-800 ${isInvalid ? 'border-red-500' : 'border-slate-700'} text-slate-100 font-mono text-sm h-20 ${isInvalid ? 'focus-visible:ring-red-500' : ''}`}
-            />
-          </div>
-        );
-      default:
-        return (
-          <div key={key} className="flex items-center gap-3">
-            <Label htmlFor={key} className={`${isInvalid ? 'text-red-400' : 'text-slate-300'} min-w-[100px] text-sm`}>
-              {key} {required && <span className="text-red-400">*</span>}
-              {isInvalid && <span className="ml-1">⚠️</span>}
-            </Label>
-            <Input
-              id={key}
-              value={value}
-              onChange={(e) => handleFormDataChange(key, e.target.value)}
-              placeholder={`Enter ${key}`}
-              className={`bg-slate-800 ${isInvalid ? 'border-red-500' : 'border-slate-700'} text-slate-100 h-8 ${isInvalid ? 'focus-visible:ring-red-500' : ''}`}
-            />
-          </div>
-        );
-    }
-  };
-
-  const selectedCommandSchema = commandRegistry.find(cmd => cmd.type === selectedCommand);
-  const domain = selectedCommandSchema?.domain;
-  const { data: roles = [] } = useRoles(domain);
-  useEffect(() => {
-    if (role && !roles.includes(role)) {
-      setRole(null);
-    }
-  }, [role, roles, setRole]);
-
-  const toggleCommandExpansion = (commandId: string) => {
-    setExpandedCommand(expandedCommand === commandId ? null : commandId);
-  };
-
-  return (
-    <div className="space-y-6">
-      <div className="flex items-center gap-3">
-        <Terminal className="h-6 w-6 text-blue-400" />
-        <h1 className="text-2xl font-bold">Command Issuer</h1>
-        <Badge variant="outline" className="border-slate-600 text-slate-300">
-          Tenant: {tenant}
-        </Badge>
-      </div>
-
-      <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
-        {/* Command Form */}
-        <Card className="lg:col-span-2 bg-slate-900 border-slate-800">
-          <CardHeader>
-            <CardTitle className="text-slate-100">Issue New Command</CardTitle>
-          </CardHeader>
-          <CardContent className="space-y-4">
-            <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
-              <div className="space-y-2">
-                <Label htmlFor="command-type" className="text-slate-300">Command Type</Label>
-                {isLoadingRegistry ? (
-                  <div className="flex items-center space-x-2 p-2 bg-slate-800 border border-slate-700 rounded">
-                    <div className="animate-spin h-4 w-4 border-2 border-blue-500 border-t-transparent rounded-full" />
-                    <span className="text-slate-400">Loading command registry...</span>
-                  </div>
-                ) : (
-                  <Select value={selectedCommand} onValueChange={(value) => {
-                    setSelectedCommand(value);
-                    setFormData({});
-                    setPayload("");
-                    setValidationErrors([]);
-                    setInvalidFields(new Set());
-                  }}>
-                    <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
-                      <SelectValue placeholder="Select command type" />
-                    </SelectTrigger>
-                    <SelectContent className="bg-slate-800 border-slate-700">
-                      {commandRegistry.map((cmd) => (
-                        <SelectItem key={cmd.type} value={cmd.type} className="text-slate-100 hover:bg-slate-700">
-                          <div className="flex flex-col items-start">
-                            <span>{cmd.type}</span>
-                            <span className="text-xs text-slate-400">{cmd.description}</span>
-                          </div>
-                        </SelectItem>
-                      ))}
-                    </SelectContent>
-                  </Select>
-                )}
-                {selectedCommandSchema && (
-                  <div className="text-xs text-slate-400">
-                    Domain: {selectedCommandSchema.domain}
-                  </div>
-                )}
-              </div>
-
-              <div className="space-y-2">
-                <Label htmlFor="role" className="text-slate-300">Role</Label>
-                <Select value={role ?? ''} onValueChange={setRole} disabled={!selectedCommand}>
-                <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
-                    <SelectValue placeholder={
-                      !selectedCommand
-                          ? "Roles populate with the selected command type"
-                          : role
-                              ? role
-                              : "Select a role"
-                    } />
-                  </SelectTrigger>
-                  <SelectContent className="bg-slate-800 border-slate-700">
-                    {roles.map((r) => (
-                      <SelectItem key={r} value={r} className="text-slate-100 hover:bg-slate-700">
-                        {r}
-                      </SelectItem>
-                    ))}
-                  </SelectContent>
-                </Select>
-              </div>
+    const toggleCommandExpansion = (commandId: string) => {
+        setExpandedCommand(expandedCommand === commandId ? null : commandId);
+    };
+
+    return (
+        <div className="space-y-6">
+            <div className="flex items-center gap-3">
+                <Terminal className="h-6 w-6 text-blue-400"/>
+                <h1 className="text-2xl font-bold">Command Issuer</h1>
+                <Badge variant="outline" className="border-slate-600 text-slate-300">
+                    Tenant: {tenant}
+                </Badge>
             </div>
 
-            {!isLoadingRegistry && selectedCommandSchema && (
-              <div className="space-y-4">
-                <h3 className="text-lg font-semibold text-slate-100">Payload</h3>
-
-                <Card className="bg-slate-800 border-slate-700">
-                  <CardContent className="p-4">
-                    <Tabs value={payloadView} onValueChange={(value: "form" | "json") => setPayloadView(value)}>
-                      <TabsList className="grid w-full grid-cols-2 bg-slate-700 mb-4">
-                        <TabsTrigger value="form" className="data-[state=active]:bg-slate-600 data-[state=active]:text-slate-100">
-                          Form
-                        </TabsTrigger>
-                        <TabsTrigger value="json" className="data-[state=active]:bg-slate-600 data-[state=active]:text-slate-100">
-                          JSON
-                        </TabsTrigger>
-                      </TabsList>
-
-                      <TabsContent value="form" className="space-y-3 mt-0">
-                        {Object.entries(selectedCommandSchema.schema.properties).map(([key, prop]: [string, Record<string, unknown>]) => 
-                          renderFormField(key, prop, selectedCommandSchema.schema.required?.includes(key) || false)
+            <div className="grid grid-cols-1 lg:grid-cols-3 gap-6">
+                {/* Command Form */}
+                <Card className="lg:col-span-2 bg-slate-900 border-slate-800">
+                    <CardHeader>
+                        <CardTitle className="text-slate-100">Issue New Command</CardTitle>
+                    </CardHeader>
+                    <CardContent className="space-y-4">
+                        <div className="grid grid-cols-1 md:grid-cols-2 gap-4">
+                            <div className="space-y-2">
+                                <Label htmlFor="command-type" className="text-slate-300">Command Type</Label>
+                                {isLoadingRegistry ? (
+                                    <div
+                                        className="flex items-center space-x-2 p-2 bg-slate-800 border border-slate-700 rounded">
+                                        <div
+                                            className="animate-spin h-4 w-4 border-2 border-blue-500 border-t-transparent rounded-full"/>
+                                        <span className="text-slate-400">Loading command registry...</span>
+                                    </div>
+                                ) : (
+                                    <Select value={selectedCommand} onValueChange={(value) => {
+                                        setSelectedCommand(value);
+                                        setFormData({});
+                                        setPayload("");
+                                        setValidationErrors([]);
+                                        setInvalidFields(new Set());
+                                    }}>
+                                        <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
+                                            <SelectValue placeholder="Select command type"/>
+                                        </SelectTrigger>
+                                        <SelectContent className="bg-slate-800 border-slate-700">
+                                            {commandRegistry.map((cmd) => (
+                                                <SelectItem key={cmd.type} value={cmd.type}
+                                                            className="text-slate-100 hover:bg-slate-700">
+                                                    <div className="flex flex-col items-start">
+                                                        <span>{cmd.type}</span>
+                                                        <span
+                                                            className="text-xs text-slate-400">{cmd.description}</span>
+                                                    </div>
+                                                </SelectItem>
+                                            ))}
+                                        </SelectContent>
+                                    </Select>
+                                )}
+                                {selectedCommandSchema && (
+                                    <div className="text-xs text-slate-400">
+                                        Domain: {selectedCommandSchema.domain}
+                                    </div>
+                                )}
+                            </div>
+
+                            <div className="space-y-2">
+                                <Label htmlFor="role" className="text-slate-300">Role</Label>
+                                <Select value={role ?? ''} onValueChange={setRole} disabled={!selectedCommand}>
+                                    <SelectTrigger className="bg-slate-800 border-slate-700 text-slate-100">
+                                        <SelectValue placeholder={
+                                            !selectedCommand
+                                                ? "Roles populate with the selected command type"
+                                                : role
+                                                    ? role
+                                                    : "Select a role"
+                                        }/>
+                                    </SelectTrigger>
+                                    <SelectContent className="bg-slate-800 border-slate-700">
+                                        {roles.map((r) => (
+                                            <SelectItem key={r} value={r} className="text-slate-100 hover:bg-slate-700">
+                                                {r}
+                                            </SelectItem>
+                                        ))}
+                                    </SelectContent>
+                                </Select>
+                            </div>
+                        </div>
+
+                        {!isLoadingRegistry && selectedCommandSchema && (
+                            <div className="space-y-4">
+                                <h3 className="text-lg font-semibold text-slate-100">Payload</h3>
+
+                                <Card className="bg-slate-800 border-slate-700">
+                                    <CardContent className="p-4">
+                                        <Tabs value={payloadView}
+                                              onValueChange={(value: "form" | "json") => setPayloadView(value)}>
+                                            <TabsList className="grid w-full grid-cols-2 bg-slate-700 mb-4">
+                                                <TabsTrigger value="form"
+                                                             className="data-[state=active]:bg-slate-600 data-[state=active]:text-slate-100">
+                                                    Form
+                                                </TabsTrigger>
+                                                <TabsTrigger value="json"
+                                                             className="data-[state=active]:bg-slate-600 data-[state=active]:text-slate-100">
+                                                    JSON
+                                                </TabsTrigger>
+                                            </TabsList>
+
+                                            <TabsContent value="form" className="space-y-3 mt-0">
+                                                {Object.entries(selectedCommandSchema.schema.properties).map(([key, prop]: [string, Record<string, unknown>]) =>
+                                                    renderFormField(key, prop, selectedCommandSchema.schema.required?.includes(key) || false)
+                                                )}
+                                            </TabsContent>
+
+                                            <TabsContent value="json" className="mt-0">
+                                                <Textarea
+                                                    value={payload}
+                                                    onChange={(e) => handlePayloadChange(e.target.value)}
+                                                    placeholder={selectedCommandSchema ? JSON.stringify(makeExample(selectedCommandSchema.schema), null, 2) : '{}'}
+                                                    className="bg-slate-800 border-slate-700 text-slate-100 font-mono text-sm min-h-32"
+                                                />
+                                            </TabsContent>
+                                        </Tabs>
+
+                                        <div className="text-xs text-slate-400 mt-3">
+                                            Required
+                                            fields: {selectedCommandSchema.schema.required?.join(', ') || 'None'}
+                                        </div>
+                                    </CardContent>
+                                </Card>
+                            </div>
+                        )}
+                        {isLoadingRegistry && selectedCommand && (
+                            <div
+                                className="flex items-center justify-center p-8 bg-slate-800 border border-slate-700 rounded">
+                                <div
+                                    className="animate-spin h-5 w-5 border-2 border-blue-500 border-t-transparent rounded-full mr-3"/>
+                                <span className="text-slate-400">Loading schema...</span>
+                            </div>
                         )}
-                      </TabsContent>
 
-                      <TabsContent value="json" className="mt-0">
-                        <Textarea
-                          value={payload}
-                          onChange={(e) => handlePayloadChange(e.target.value)}
-                          placeholder={selectedCommandSchema ? JSON.stringify(makeExample(selectedCommandSchema.schema), null, 2) : '{}'}
-                          className="bg-slate-800 border-slate-700 text-slate-100 font-mono text-sm min-h-32"
-                        />
-                      </TabsContent>
-                    </Tabs>
+                        {validationErrors.length > 0 && (
+                            <div className="mb-4 p-3 bg-red-900/30 border border-red-700 rounded-md">
+                                <div className="flex items-center gap-2 mb-2 text-red-400">
+                                    <AlertCircle className="h-4 w-4"/>
+                                    <span className="font-medium">Validation errors</span>
+                                </div>
+                                <ul className="list-disc pl-5 space-y-1">
+                                    {validationErrors.map((error, index) => (
+                                        <li key={index} className="text-sm text-red-300">{error}</li>
+                                    ))}
+                                </ul>
+                            </div>
+                        )}
 
-                    <div className="text-xs text-slate-400 mt-3">
-                      Required fields: {selectedCommandSchema.schema.required?.join(', ') || 'None'}
-                    </div>
-                  </CardContent>
+                        <div className="flex gap-3">
+                            <Button
+                                onClick={handleSubmit}
+                                disabled={!selectedCommand || isSubmitting || isLoadingRegistry}
+                                className="bg-blue-600 hover:bg-blue-700"
+                            >
+                                {isSubmitting ? (
+                                    <>
+                                        <div
+                                            className="animate-spin h-4 w-4 border-2 border-white border-t-transparent rounded-full mr-2"/>
+                                        Submitting...
+                                    </>
+                                ) : (
+                                    <>
+                                        <Send className="h-4 w-4 mr-2"/>
+                                        Submit Command
+                                    </>
+                                )}
+                            </Button>
+
+                            {selectedCommand && (
+                                <Button
+                                    variant="secondary"
+                                    disabled={isLoadingRegistry}
+                                    onClick={() => {
+                                        const schema = selectedCommandSchema?.schema;
+                                        if (!schema) return;
+                                        const example = JSON.stringify(makeExample(schema), null, 2);
+                                        setPayload(example);
+                                        setFormData(JSON.parse(example));
+                                        setValidationErrors([]);
+                                        setInvalidFields(new Set());
+                                    }}
+                                >
+                                    Generate Payload
+                                </Button>
+                            )}
+                        </div>
+                    </CardContent>
                 </Card>
-              </div>
-            )}
-            {isLoadingRegistry && selectedCommand && (
-              <div className="flex items-center justify-center p-8 bg-slate-800 border border-slate-700 rounded">
-                <div className="animate-spin h-5 w-5 border-2 border-blue-500 border-t-transparent rounded-full mr-3" />
-                <span className="text-slate-400">Loading schema...</span>
-              </div>
-            )}
-
-            {validationErrors.length > 0 && (
-              <div className="mb-4 p-3 bg-red-900/30 border border-red-700 rounded-md">
-                <div className="flex items-center gap-2 mb-2 text-red-400">
-                  <AlertCircle className="h-4 w-4" />
-                  <span className="font-medium">Validation errors</span>
-                </div>
-                <ul className="list-disc pl-5 space-y-1">
-                  {validationErrors.map((error, index) => (
-                    <li key={index} className="text-sm text-red-300">{error}</li>
-                  ))}
-                </ul>
-              </div>
-            )}
-
-            <div className="flex gap-3">
-              <Button 
-                onClick={handleSubmit}
-                disabled={!selectedCommand || isSubmitting || isLoadingRegistry}
-                className="bg-blue-600 hover:bg-blue-700"
-              >
-                {isSubmitting ? (
-                  <>
-                    <div className="animate-spin h-4 w-4 border-2 border-white border-t-transparent rounded-full mr-2" />
-                    Submitting...
-                  </>
-                ) : (
-                  <>
-                    <Send className="h-4 w-4 mr-2" />
-                    Submit Command
-                  </>
-                )}
-              </Button>
-
-              {selectedCommand && (
-                <Button 
-                  variant="secondary"
-                  disabled={isLoadingRegistry}
-                  onClick={() => {
-                    const schema = selectedCommandSchema?.schema;
-                    if (!schema) return;
-                    const example = JSON.stringify(makeExample(schema), null, 2);
-                    setPayload(example);
-                    setFormData(JSON.parse(example));
-                    setValidationErrors([]);
-                    setInvalidFields(new Set());
-                  }}
-                >
-                  Generate Payload
-                </Button>
-              )}
-            </div>
-          </CardContent>
-        </Card>
-
-        {/* Recent Commands */}
-        <Card className="bg-slate-900 border-slate-800">
-          <CardHeader>
-            <CardTitle className="text-slate-100 flex items-center gap-2">
-              <Clock className="h-5 w-5" />
-              Recent Commands
-            </CardTitle>
-          </CardHeader>
-          <CardContent>
-            <div className="space-y-2">
-              {recentCommands.map((cmd, idx) => {
-                const isHighlighted = cmd.id === highlightedCommandId;
-                const highlightClass = isHighlighted ? "ring-2 ring-blue-500 bg-blue-500/10" : "";
-                return (
-                  <div
-                    key={cmd.id}
-                    className={cn("space-y-2 transition-all duration-300", highlightClass)}
-                  >
-                    <div 
-                      className="flex items-center justify-between p-2 bg-slate-800 rounded cursor-pointer hover:bg-slate-750"
-                      onClick={() => toggleCommandExpansion(cmd.id)}
-                    >
-                      <div className="flex items-center gap-2 text-xs text-slate-300 flex-1 min-w-0">
-                        {expandedCommand === cmd.id ? (
-                          <ChevronDown className="h-3 w-3 flex-shrink-0" />
-                        ) : (
-                          <ChevronRight className="h-3 w-3 flex-shrink-0" />
-                        )}
-                        {
-                          cmd.createdAt && <span className="text-slate-500">
+
+                {/* Recent Commands */}
+                <Card className="bg-slate-900 border-slate-800">
+                    <CardHeader>
+                        <CardTitle className="text-slate-100 flex items-center gap-2">
+                            <Clock className="h-5 w-5"/>
+                            Recent Commands
+                        </CardTitle>
+                    </CardHeader>
+                    <CardContent>
+                        <div className="space-y-2">
+                            {recentCommands.map((cmd, idx) => {
+                                const isHighlighted = cmd.id === highlightedCommandId;
+                                const highlightClass = isHighlighted ? "ring-2 ring-blue-500 bg-blue-500/10" : "";
+                                return (
+                                    <div
+                                        key={cmd.id}
+                                        className={cn("space-y-2 transition-all duration-300", highlightClass)}
+                                    >
+                                        <div
+                                            className="flex items-center justify-between p-2 bg-slate-800 rounded cursor-pointer hover:bg-slate-750"
+                                            onClick={() => toggleCommandExpansion(cmd.id)}
+                                        >
+                                            <div
+                                                className="flex items-center gap-2 text-xs text-slate-300 flex-1 min-w-0">
+                                                {expandedCommand === cmd.id ? (
+                                                    <ChevronDown className="h-3 w-3 flex-shrink-0"/>
+                                                ) : (
+                                                    <ChevronRight className="h-3 w-3 flex-shrink-0"/>
+                                                )}
+                                                {
+                                                    cmd.createdAt && <span className="text-slate-500">
                           {new Date(cmd.createdAt).toLocaleString(undefined, {
-                            hour:   '2-digit',
-                            minute: '2-digit',
-                            second: '2-digit',
+                              hour: '2-digit',
+                              minute: '2-digit',
+                              second: '2-digit',
                           })}
                          </span>
-                        }
-                        <span className="text-slate-400 font-mono truncate">{cmd.id}</span>
-                        <span className="text-slate-200 truncate">{cmd.type}</span>
-                      </div>
-
-                      <Badge 
-                        variant={
-                          ({
-                            pending:   'secondary',
-                            mocked:   'secondary',
-                            processed: 'default',
-                            consumed:  'default',
-                            failed:    'destructive',
-                          } as const)[cmd.status]
-                        }
-                        className="text-xs flex-shrink-0"
-                      >
-                        {cmd.status}
-                      </Badge>
-                    </div>
-
-                    {expandedCommand === cmd.id && (
-                      <div key={`${cmd.id}-details`} className="ml-5 p-3 bg-slate-800/50 rounded text-xs space-y-2">
+                                                }
+                                                <span className="text-slate-400 font-mono truncate">{cmd.id}</span>
+                                                <span className="text-slate-200 truncate">{cmd.type}</span>
+                                            </div>
+
+                                            <Badge
+                                                variant={
+                                                    ({
+                                                        pending: 'secondary',
+                                                        mocked: 'secondary',
+                                                        processed: 'default',
+                                                        consumed: 'default',
+                                                        failed: 'destructive',
+                                                    } as const)[cmd.status]
+                                                }
+                                                className="text-xs flex-shrink-0"
+                                            >
+                                                {cmd.status}
+                                            </Badge>
+                                        </div>
+
+                                        {expandedCommand === cmd.id && (
+                                            <div key={`${cmd.id}-details`}
+                                                 className="ml-5 p-3 bg-slate-800/50 rounded text-xs space-y-2">
                         <span className="text-slate-400 font-medium">
                           {new Date(cmd.createdAt).toLocaleString(undefined, {
-                            year:   '2-digit',
-                            month:   '2-digit',
-                            day:   '2-digit',
-                            hour:   '2-digit',
-                            minute: '2-digit',
-                            second: '2-digit',
+                              year: '2-digit',
+                              month: '2-digit',
+                              day: '2-digit',
+                              hour: '2-digit',
+                              minute: '2-digit',
+                              second: '2-digit',
                           })}
                         </span>
-                        <div>
-                          <div className="text-slate-400 font-medium mb-1">Metadata:</div>
-                          <pre className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
+                                                <div>
+                                                    <div className="text-slate-400 font-medium mb-1">Metadata:</div>
+                                                    <pre
+                                                        className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
                             {JSON.stringify(cmd.metadata ?? {}, null, 2)}
                           </pre>
-                        </div>
-                        <div>
-                          <div className="text-slate-400 font-medium mb-1">Payload:</div>
-                          <pre className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
+                                                </div>
+                                                <div>
+                                                    <div className="text-slate-400 font-medium mb-1">Payload:</div>
+                                                    <pre
+                                                        className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
                             {JSON.stringify(cmd.payload, null, 2)}
                           </pre>
-                        </div>
-                        <div>
-                          <div className="text-slate-400 font-medium mb-1">Response:</div>
-                          <pre className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
+                                                </div>
+                                                <div>
+                                                    <div className="text-slate-400 font-medium mb-1">Response:</div>
+                                                    <pre
+                                                        className="text-slate-300 bg-slate-900 p-2 rounded overflow-x-auto">
                             {JSON.stringify(cmd.response, null, 2)}
                           </pre>
+                                                </div>
+                                            </div>
+                                        )}
+                                    </div>
+                                );
+                            })}
                         </div>
-                      </div>
-                    )}
-                  </div>
-                );
-              })}
+                    </CardContent>
+                </Card>
             </div>
-          </CardContent>
-        </Card>
-      </div>
-    </div>
-  );
+        </div>
+    );
 };
diff --git a/devex-ui/src/data/types.ts b/devex-ui/src/data/types.ts
index d5f2143a..b98fe630 100644
--- a/devex-ui/src/data/types.ts
+++ b/devex-ui/src/data/types.ts
@@ -53,5 +53,10 @@ export interface Event<T = unknown> {
 export type CommandResult = {
   status: 'success' | 'fail';
   events?: Event[];
-  error?: string;
+  error?: ({
+    name?: string;
+    message?: string;
+    code?: string;
+    details?: Record<string, unknown>;
+  });
 };
diff --git a/package.json b/package.json
index 08d46e48..b679f9f4 100644
--- a/package.json
+++ b/package.json
@@ -13,6 +13,7 @@
     "start:command-pump": "node dist/infra/pg/command-pump.js",
     "start:cmdline": "node dist/client/cmdline/index.js",
     "api:admin": "ts-node-dev --respawn --transpile-only src/api/index.ts",
+    "api:admin:watch": "ts-node-dev --respawn --watch --transpile-only src/api/index.ts",
     "dev": "ts-node-dev --respawn --transpile-only src/index.ts",
     "dev:worker": "ts-node-dev --respawn --transpile-only src/worker.ts",
     "dev:command-pump": "ts-node-dev --respawn --transpile-only src/infra/pump/command-pump.ts",
diff --git a/src/api/routes/commands.ts b/src/api/routes/commands.ts
index 305c0098..9c780f03 100644
--- a/src/api/routes/commands.ts
+++ b/src/api/routes/commands.ts
@@ -2,6 +2,7 @@ import { Router } from 'express';
 import pool from '../db';
 import { TemporalScheduler } from '../../infra/temporal/temporal-scheduler';
 import logger from '../logger';
+import {BusinessRuleViolation} from "../../core/errors";
 
 const router = Router();
 
diff --git a/src/core/errors.ts b/src/core/errors.ts
index 9924878b..dc6aa372 100644
--- a/src/core/errors.ts
+++ b/src/core/errors.ts
@@ -1,9 +1,40 @@
 export class BusinessRuleViolation extends Error {
-  readonly name = 'BusinessRuleViolation';
-  private retriable: boolean;
-
-  constructor(public readonly reason: string, public readonly details?: any, retriable = false) {
-    super(reason);
-    this.retriable = retriable;
-  }
-}
\ No newline at end of file
+    public readonly retryable: boolean;
+    public readonly details?: Record<string, unknown>;
+
+    constructor(public readonly message: string, details?: Record<string, unknown>, retryable = false) {
+        super(message);
+        this.name = 'BusinessRuleViolation'; // must be set AFTER super
+        this.message = message;
+
+        // Must set these explicitly on `this`
+        this.details = details;
+        this.retryable = retryable;
+
+        // Fix prototype chain — **CRUCIAL**
+        Object.setPrototypeOf(this, new.target.prototype);
+
+        // Optional: capture proper stack trace
+        if (Error.captureStackTrace) {
+            Error.captureStackTrace(this, this.constructor);
+        }
+    }
+
+    //magic fn for auto serializers
+    toJSON() {
+        return {
+            name: this.name,
+            message: this.message,
+            stack: this.stack,
+            retryable: this.retryable,
+            details: this.details,
+        };
+    }
+}
+
+export function toError(err: unknown): Error {
+    return err instanceof Error
+        ? err
+        : Object.assign(new Error('Non-error thrown'), { cause: err });
+}
+
diff --git a/src/core/system/aggregates/system.aggregate.ts b/src/core/system/aggregates/system.aggregate.ts
index 6e3908d8..6c17fd80 100644
--- a/src/core/system/aggregates/system.aggregate.ts
+++ b/src/core/system/aggregates/system.aggregate.ts
@@ -18,8 +18,8 @@ import {
     TestExecutedPayload,
     RetryableTestExecutedPayload
 } from '../contracts';
-import { buildEvent } from '../../shared/event-factory';
-import {evaluateCondition, isCommandAllowed} from '../../policy-registry';
+import {buildEvent} from '../../shared/event-factory';
+import {isCommandAllowed} from '../../policy-registry';
 import {
     autoRegisteredCommandAccessConditions,
     SystemCommandAccessCondition, GeneratedSystemCommandConditions
@@ -29,6 +29,7 @@ type SystemSnapshotState = {
     numberExecutedTests: number;
     testName?: string;
     parameters?: Record<string, any>;
+    retries: number;
 };
 
 export class SystemAggregate extends BaseAggregate<SystemSnapshotState> {
@@ -46,6 +47,7 @@ export class SystemAggregate extends BaseAggregate<SystemSnapshotState> {
     version = 0;
     numberExecutedTests = 0;
     lastExecutedTestName = '';
+    retries = 0;
 
     constructor(id: UUID) {
         super(id);
@@ -200,7 +202,11 @@ export class SystemAggregate extends BaseAggregate<SystemSnapshotState> {
 
     private handleExecuteRetryableTest(cmd: Command<ExecuteRetryableTestPayload>): Event[] {
         if (this.version % 2 === 0) {
-            throw new BusinessRuleViolation('Retryable error', undefined, true);
+            throw new BusinessRuleViolation('Retryable error', {
+                'message': `Increase version by cmds resulting application of other events`,
+                'currentVersion': this.version,
+                'versionToSucceed': this.version + 1
+            }, true);
         }
 
         const now = new Date();
@@ -246,7 +252,7 @@ export class SystemAggregate extends BaseAggregate<SystemSnapshotState> {
     }
 
     private applyRetryableTestExecuted(_: Event<RetryableTestExecutedPayload>): void {
-        // no-op
+        this.retries++;
     }
 
     protected upcastSnapshotState(raw: any, version: number): SystemSnapshotState {
@@ -260,6 +266,7 @@ export class SystemAggregate extends BaseAggregate<SystemSnapshotState> {
     extractSnapshotState(): SystemSnapshotState {
         const state: SystemSnapshotState = {
             numberExecutedTests: this.numberExecutedTests,
+            retries: this.retries,
         };
 
         if (this.lastExecutedTestName) {
diff --git a/src/infra/contracts.ts b/src/infra/contracts.ts
index eb3d2e0f..e93cb4c1 100644
--- a/src/infra/contracts.ts
+++ b/src/infra/contracts.ts
@@ -3,5 +3,5 @@ import {Event} from "../core/contracts";
 export type CommandResult = {
     status: 'success' | 'fail';
     events?: Event[];
-    error?: string;
+    error?: Error;
 };
diff --git a/src/infra/logger/apiLogger.ts b/src/infra/logger/apiLogger.ts
index 5dd31305..ed979773 100644
--- a/src/infra/logger/apiLogger.ts
+++ b/src/infra/logger/apiLogger.ts
@@ -2,6 +2,5 @@ import { stdLogger } from './stdLogger';
 import { LoggerPort } from '../../core/ports';
 
 export const apiLogger: LoggerPort = stdLogger.child({
-  module: 'api',
-  layer: 'access',
+  module: 'api'
 });
\ No newline at end of file
diff --git a/src/infra/logger/stdLogger.ts b/src/infra/logger/stdLogger.ts
index 6bfde8a5..09196a10 100644
--- a/src/infra/logger/stdLogger.ts
+++ b/src/infra/logger/stdLogger.ts
@@ -8,29 +8,46 @@ dotenv.config();
 const isDev = process.env.NODE_ENV !== 'production';
 
 // Configure error serialization for better error handling
-const errorSerializer = (err: any) => {
-  if (!err) return err;
+/**
+ * Custom error serializer for structured logging (e.g. Pino).
+ * Preserves standard fields and safely includes custom ones like `details`, `retryable`, etc.
+ */
+export const errorSerializer = (err: Error): Record<string, unknown> => {
+  if (!err) return { name: 'Error', message: 'Unknown error' };
 
-  // Handle both Error objects and plain objects with error properties
   const base = {
-    message: err.message || (typeof err === 'string' ? err : 'Unknown error'),
-    name: err.name || 'Error',
-    stack: err.stack,
+    name: typeof err === 'object' && 'name' in err ? (err as any).name : 'Error',
+    message: typeof err === 'object' && 'message' in err ? (err as any).message : String(err),
+    stack: typeof err === 'object' && 'stack' in err ? (err as any).stack : undefined,
   };
 
-  // Add enumerable properties from the error object
-  const enumProps = Object.getOwnPropertyNames(err).reduce((acc, key) => {
-    if (key !== 'message' && key !== 'name' && key !== 'stack') {
+  // Extract additional fields safely
+  const instanceProps: Record<string, unknown> = {};
+
+  try {
+    const allKeys = [
+      ...Object.getOwnPropertyNames(err),
+      ...Object.keys(err), // catches enumerable properties set on the instance
+    ];
+
+    for (const key of new Set(allKeys)) {
+      if (key === 'name' || key === 'message' || key === 'stack') continue;
       try {
-        acc[key] = err[key];
-      } catch (e) {
-        acc[key] = 'Error accessing property';
+        instanceProps[key] = (err as any)[key];
+      } catch (accessErr) {
+        instanceProps[key] = 'Error accessing property';
       }
     }
-    return acc;
-  }, {} as Record<string, any>);
+  } catch {
+    // fallback if anything explodes
+    instanceProps['details'] = {
+      "message": "Exception: cant serialize props"
+    };
+  }
+
+  const serializedError = { ...base, ...instanceProps };
 
-  return { ...base, ...enumProps };
+  return serializedError;
 };
 
 // Function to get caller information from stack trace
diff --git a/src/infra/temporal/activities/coreActivities.ts b/src/infra/temporal/activities/coreActivities.ts
index 59f442c4..18732140 100644
--- a/src/infra/temporal/activities/coreActivities.ts
+++ b/src/infra/temporal/activities/coreActivities.ts
@@ -80,11 +80,12 @@ export async function dispatchCommand(cmd: Command): Promise<void> {
                     error: validationError,
                     issues: validationError.errors || validationError.issues
                 });
+                const err = new Error(`Command payload validation failed: ${validationError.message}`);
                 await pgCommandStore.markStatus(cmd.id, 'failed', {
                     status: 'fail', 
-                    error: `Validation error: ${validationError.message}`
+                    error: err
                 });
-                throw new Error(`Command payload validation failed: ${validationError.message}`);
+                throw err;
             }
         } else {
             logger?.warn('No schema found for command type', { commandType: cmd.type });
@@ -215,7 +216,7 @@ export async function loadAggregate(
  */
 export async function getEventsForCommand(
     cmd: Command
-): Promise<{ events?: Event[]; status: 'success' | 'fail'; error?: string }> {
+): Promise<{ events?: Event[]; status: 'success' | 'fail'; error?: Error }> {
     try {
         const tenantId = cmd.tenant_id;
         const {aggregateType, aggregateId} = cmd.payload;
@@ -226,7 +227,7 @@ export async function getEventsForCommand(
         return {events, status: 'success'};
     } catch (err) {
         if (err instanceof BusinessRuleViolation) {
-            return {status: 'fail', error: err.reason};
+            return {status: 'fail', error: err};
         }
         throw err;
     }
diff --git a/src/infra/temporal/temporal-scheduler.ts b/src/infra/temporal/temporal-scheduler.ts
index 7030ff31..52941a90 100644
--- a/src/infra/temporal/temporal-scheduler.ts
+++ b/src/infra/temporal/temporal-scheduler.ts
@@ -51,7 +51,7 @@ export class TemporalScheduler implements JobSchedulerPort, EventPublisherPort {
 
         let res: CommandResult = {
             status: 'fail',
-            error: 'Command not supported'
+            error: new Error('Command not supported')
         };
 
         logger?.info('Routing command', {cmd});
diff --git a/src/infra/temporal/workflow-router.ts b/src/infra/temporal/workflow-router.ts
index bbb9a802..d27b255d 100644
--- a/src/infra/temporal/workflow-router.ts
+++ b/src/infra/temporal/workflow-router.ts
@@ -86,7 +86,7 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
 
                     // Check if this is a business rule violation
                     if (result.status === 'fail') {
-                        logger?.warn('Business rule violation in workflow', { error: result.error });
+                        logger?.error('Business rule violation in workflow', { error: result.error });
                         // We don't consider this a failure, just log it
                     } else {
                         logger?.info('Aggregate workflow completed successfully');
@@ -97,15 +97,21 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
                         logger?.info('Signaling saga after aggregate workflow completion');
                         return this.routeSagaCommand(cmd);
                     }
+
                     return result;
-                } catch (error) {
-                    logger?.error('Error waiting for aggregate workflow to complete', { error });
+                } catch (err) {
+                    if (err) {
+                        logger?.warn('Error waiting for aggregate workflow to complete', { error: err });
+                    }
                     // Still signal the saga even if the aggregate workflow fails
                     if (this.isSagaCommand(cmd)) {
                         logger?.info('Signaling saga after aggregate workflow failure');
                         return this.routeSagaCommand(cmd);
                     }
-                    return {status: 'fail', error: `Error waiting for aggregate workflow: ${error}`};
+                    return {
+                        status: 'fail',
+                        error: err instanceof Error ? err : new Error(String(err)),
+                    };
                 }
             });
         } else if (this.isSagaCommand(cmd)) {
@@ -117,7 +123,7 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
                 tenantId: cmd.tenant_id
             });
             logger?.warn('Ignored unsupported command');
-            return { status: 'fail', error: `Unsupported command: ${cmd.type}` };
+            return { status: 'fail', error: new Error(`Unsupported command: ${cmd.type}`) };
         }
     }
 
@@ -191,7 +197,7 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
                 tenantId: cmd.tenant_id
             });
             logger?.warn('No matching saga for command');
-            return {status: 'fail', error: `No matching saga for command ${cmd.type}`};
+            return {status: 'fail', error: Error(`No matching saga for command ${cmd.type}`)};
         }
 
         const workflowId = match.idFor(cmd)!;
diff --git a/src/infra/temporal/workflows/processCommand.ts b/src/infra/temporal/workflows/processCommand.ts
index 38b893ee..05cb3f0d 100644
--- a/src/infra/temporal/workflows/processCommand.ts
+++ b/src/infra/temporal/workflows/processCommand.ts
@@ -12,7 +12,7 @@ import type * as ObservabilityActivities from '../activities/observabilityActivi
 type CommandResult = {
     status: 'success' | 'fail';
     events?: Event[];
-    error?: string;
+    error?: Error;
 };
 
 const commandSignal = defineSignal<[Command]>('command');

From c62f2d01a47edacebdfee31ea2d72e3438186687 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 22:25:15 -0700
Subject: [PATCH 20/21] refactor(core/ui): simplify imports and clean unused
 code, more flexible tests with martial state object matching

---
 devex-ui/src/components/CommandIssuer.tsx          |  6 +++---
 devex-ui/src/components/Header.tsx                 |  2 --
 devex-ui/src/data/api.ts                           |  2 --
 devex-ui/src/mocks/handlers.ts                     |  2 +-
 devex-ui/src/mocks/scenarios/default.ts            | 14 +++++++++-----
 src/api/routes/commands.ts                         |  1 -
 src/core/policy-registry.ts                        |  1 -
 src/core/system/__tests__/system.aggregate.test.ts |  4 ++--
 src/core/system/aggregates/system.aggregate.ts     |  9 ++++++---
 src/core/system/register.ts                        |  2 +-
 src/infra/temporal/temporal-scheduler.ts           |  4 +---
 src/infra/temporal/workflow-router.ts              |  8 +++++++-
 src/infra/temporal/workflows/processCommand.ts     |  1 +
 13 files changed, 31 insertions(+), 25 deletions(-)

diff --git a/devex-ui/src/components/CommandIssuer.tsx b/devex-ui/src/components/CommandIssuer.tsx
index 14fc8894..6cdb5f4b 100644
--- a/devex-ui/src/components/CommandIssuer.tsx
+++ b/devex-ui/src/components/CommandIssuer.tsx
@@ -8,7 +8,7 @@ import {Card, CardHeader, CardTitle, CardContent} from "@/components/ui/card";
 import {Select, SelectContent, SelectItem, SelectTrigger, SelectValue} from "@/components/ui/select";
 import {Badge} from "@/components/ui/badge";
 import {Tabs, TabsContent, TabsList, TabsTrigger} from "@/components/ui/tabs";
-import {Clock, Send, RotateCcw, Terminal, ChevronDown, ChevronRight, RefreshCw, AlertCircle} from "lucide-react";
+import {Clock, Send, Terminal, ChevronDown, ChevronRight, RefreshCw, AlertCircle} from "lucide-react";
 import {useCommands, useSubmitCommand, useRoles} from "@/hooks/api";
 import {validate, registerSchemas} from "@/utils/schemaValidator";
 import {makeExample} from "@/utils/schemaFaker";
@@ -27,7 +27,7 @@ export const CommandIssuer = () => {
     const [expandedCommand, setExpandedCommand] = useState<string | null>(null);
     const [validationErrors, setValidationErrors] = useState<string[]>([]);
     const [invalidFields, setInvalidFields] = useState<Set<string>>(new Set());
-    const [lastSubmittedId, setLastSubmittedId] = useState<string | null>(null);
+    const [_, setLastSubmittedId] = useState<string | null>(null);
     const [highlightedCommandId, setHighlightedCommandId] = useState<string | null>(null);
 
     // Use React Query hooks
@@ -506,7 +506,7 @@ export const CommandIssuer = () => {
                     </CardHeader>
                     <CardContent>
                         <div className="space-y-2">
-                            {recentCommands.map((cmd, idx) => {
+                            {recentCommands.map((cmd, _) => {
                                 const isHighlighted = cmd.id === highlightedCommandId;
                                 const highlightClass = isHighlighted ? "ring-2 ring-blue-500 bg-blue-500/10" : "";
                                 return (
diff --git a/devex-ui/src/components/Header.tsx b/devex-ui/src/components/Header.tsx
index a1f722c9..55be44f8 100644
--- a/devex-ui/src/components/Header.tsx
+++ b/devex-ui/src/components/Header.tsx
@@ -1,6 +1,4 @@
 //devex-ui/src/components/Header.tsx
-
-import { useState } from "react";
 import { ChevronDown } from "lucide-react";
 import { Button } from "@/components/ui/button";
 import {
diff --git a/devex-ui/src/data/api.ts b/devex-ui/src/data/api.ts
index 98cf40b8..a4f0c2a2 100644
--- a/devex-ui/src/data/api.ts
+++ b/devex-ui/src/data/api.ts
@@ -1,6 +1,4 @@
 //devex-ui/src/data/api.ts
-import { toast } from "@/components/ui/sonner";
-
 const apiMode = localStorage.getItem('api_mode') || import.meta.env.VITE_API_MODE || 'mock';
 
 // API client configuration
diff --git a/devex-ui/src/mocks/handlers.ts b/devex-ui/src/mocks/handlers.ts
index f0c4096f..0ff76d00 100644
--- a/devex-ui/src/mocks/handlers.ts
+++ b/devex-ui/src/mocks/handlers.ts
@@ -28,7 +28,7 @@ export const handlers = [
     );
   }),
 
-  http.get('/api/registry/roles', ({ request }) => {
+  http.get('/api/registry/roles', () => {
     // Convert roles store data to the expected format
     const rolesData = rolesStore.list(1000);
     const result: Record<string, string[]> = {};
diff --git a/devex-ui/src/mocks/scenarios/default.ts b/devex-ui/src/mocks/scenarios/default.ts
index c7232c2b..47776feb 100644
--- a/devex-ui/src/mocks/scenarios/default.ts
+++ b/devex-ui/src/mocks/scenarios/default.ts
@@ -1,9 +1,13 @@
 //src/devex-ui/src/mocks/scenarios/default.ts
-import { eventStore } from '../stores/event.store';
-import { commandStore, recentCommandsStore } from '../stores/command.store';
-import { traceStore } from '../stores/trace.store';
-import { logStore } from '../stores/log.store';
-import { rolesStore } from '../stores/roles.store';
+import {
+  eventStore,
+  commandStore,
+  recentCommandsStore,
+  traceStore,
+  logStore,
+  rolesStore
+} from '@/mocks/stores';
+
 import { makeEvent } from '../factories/event.factory';
 import { makeCommand } from '../factories/command.factory';
 import { makeTrace } from '../factories/trace.factory';
diff --git a/src/api/routes/commands.ts b/src/api/routes/commands.ts
index 9c780f03..305c0098 100644
--- a/src/api/routes/commands.ts
+++ b/src/api/routes/commands.ts
@@ -2,7 +2,6 @@ import { Router } from 'express';
 import pool from '../db';
 import { TemporalScheduler } from '../../infra/temporal/temporal-scheduler';
 import logger from '../logger';
-import {BusinessRuleViolation} from "../../core/errors";
 
 const router = Router();
 
diff --git a/src/core/policy-registry.ts b/src/core/policy-registry.ts
index fb6d72f3..1562998a 100644
--- a/src/core/policy-registry.ts
+++ b/src/core/policy-registry.ts
@@ -1,6 +1,5 @@
 //src/core/policy-registry.ts
 import { AccessContext } from './contracts';
-import {SystemCommandAccessCondition} from "./system";
 
 export type AccessPolicy = (context: AccessContext) => boolean;
 const conditionMap: Record<string, (args: AccessPolicy) => boolean> = {};
diff --git a/src/core/system/__tests__/system.aggregate.test.ts b/src/core/system/__tests__/system.aggregate.test.ts
index 081e7408..559a1bce 100644
--- a/src/core/system/__tests__/system.aggregate.test.ts
+++ b/src/core/system/__tests__/system.aggregate.test.ts
@@ -217,8 +217,8 @@ describe('SystemAggregate', () => {
 
         const snapshotState = systemAggregate.extractSnapshotState();
 
-        expect(snapshotState).toEqual({
-            numberExecutedTests: 3
+        expect(snapshotState).toMatchObject({
+            numberExecutedTests: 3,
         });
 
         const newAggregate = new SystemAggregate('test-system');
diff --git a/src/core/system/aggregates/system.aggregate.ts b/src/core/system/aggregates/system.aggregate.ts
index 6c17fd80..c48e9a3b 100644
--- a/src/core/system/aggregates/system.aggregate.ts
+++ b/src/core/system/aggregates/system.aggregate.ts
@@ -21,8 +21,12 @@ import {
 import {buildEvent} from '../../shared/event-factory';
 import {isCommandAllowed} from '../../policy-registry';
 import {
-    autoRegisteredCommandAccessConditions,
-    SystemCommandAccessCondition, GeneratedSystemCommandConditions
+/*
+todo compile time will ignore.
+//    autoRegisteredCommandAccessConditions,
+//    SystemCommandAccessCondition,
+*/
+    GeneratedSystemCommandConditions
 } from "../command-access";
 
 type SystemSnapshotState = {
@@ -135,7 +139,6 @@ export class SystemAggregate extends BaseAggregate<SystemSnapshotState> {
     }
 
     private handleEmitMultipleEvents(cmd: Command<EmitMultipleEventsPayload>): Event[] {
-        const now = new Date();
         const events: Event[] = [];
 
         for (let i = 0; i < cmd.payload.count; i++) {
diff --git a/src/core/system/register.ts b/src/core/system/register.ts
index c66db201..d0b15a2f 100644
--- a/src/core/system/register.ts
+++ b/src/core/system/register.ts
@@ -11,7 +11,7 @@ import {
 import { SystemAggregate } from './aggregates/system.aggregate';
 import { SystemCommandHandler } from './command-handler';
 import { systemSagaRegistry } from './sagas/saga-registry';
-import { SystemCommandType, SystemEventType, SystemRole } from './contracts';
+import { SystemCommandType, SystemEventType } from './contracts';
 import { register as registerSystemProjections } from './read-models/register';
 import { commandPayloadSchemas, eventPayloadSchemas } from './payload-schemas';
 
diff --git a/src/infra/temporal/temporal-scheduler.ts b/src/infra/temporal/temporal-scheduler.ts
index 52941a90..32a15843 100644
--- a/src/infra/temporal/temporal-scheduler.ts
+++ b/src/infra/temporal/temporal-scheduler.ts
@@ -1,13 +1,11 @@
 // infra/temporal/temporal-scheduler.ts
-import {WorkflowClient, WorkflowExecutionInfo, WorkflowHandle} from '@temporalio/client';
+import {WorkflowClient} from '@temporalio/client';
 import {Command, Event} from '../../core/contracts';
 import {log} from '../../core/logger';
 import {CommandResult} from "../contracts";
 import {WorkflowRouter} from './workflow-router';
 import {JobSchedulerPort, EventPublisherPort, CommandStorePort} from '../../core/ports';
-import {markConsumed} from '../pump/helpers/command-helpers';
 import {PgCommandStore} from "../pg/pg-command-store";
-import * as pg from "pg";
 
 /**
  * TemporalScheduler - schedules commands and events via Temporal workflows
diff --git a/src/infra/temporal/workflow-router.ts b/src/infra/temporal/workflow-router.ts
index d27b255d..bc8cbdce 100644
--- a/src/infra/temporal/workflow-router.ts
+++ b/src/infra/temporal/workflow-router.ts
@@ -1,5 +1,5 @@
 // infra/temporal/workflow-router.ts
-import {Connection, WorkflowClient, WorkflowIdReusePolicy} from '@temporalio/client';
+import {Connection, WorkflowClient} from '@temporalio/client';
 import {getAllSagas, DomainRegistry} from '../../core/registry';
 import {Command, Event, UUID} from '../../core/contracts';
 import {log} from '../../core/logger';
@@ -52,6 +52,8 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
             const aggregateId = cmd.payload?.aggregateId;
             const workflowId = this.getAggregateWorkflowId(tenant_id, aggregateType, aggregateId);
 
+            /*
+            requires ElasticSearch.
             const searchAttributes = {
                 aggregateType: [`${aggregateType}`],
                 aggregateId: [`${aggregateId}`],
@@ -59,6 +61,7 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
                 causationId: [`${cmd.metadata?.causationId}`],
                 correlationId: [`${cmd.metadata?.correlationId}`],
             }
+            */
 
             // Start the aggregate workflow
             const logger = log()?.child({
@@ -207,6 +210,8 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
         const aggregateType = cmd.payload?.aggregateType;
         const aggregateId = cmd.payload?.aggregateId;
 
+        /*
+        requires ElasticSearch.
         const searchAttributes = {
             aggregateType: [`${aggregateType}`],
             aggregateId: [`${aggregateId}`],
@@ -214,6 +219,7 @@ export class WorkflowRouter implements CommandHandler, EventHandler {
             causationId: [`${cmd.metadata?.causationId}`],
             correlationId: [`${cmd.metadata?.correlationId}`],
         }
+        */
 
         const logger = log()?.child({
             commandType: cmd.type,
diff --git a/src/infra/temporal/workflows/processCommand.ts b/src/infra/temporal/workflows/processCommand.ts
index 05cb3f0d..7e1ff631 100644
--- a/src/infra/temporal/workflows/processCommand.ts
+++ b/src/infra/temporal/workflows/processCommand.ts
@@ -33,6 +33,7 @@ const {
 const WORKFLOW_TTL_IN_MS = 1000;
 
 export async function processCommand(
+    //todo check if temporal works with fn footprint, even not utilized
     tenantId: UUID,
     aggregateType: string,
     aggregateId: UUID

From e9be57ca0c97fcf98f26feac599ffb34c0653c34 Mon Sep 17 00:00:00 2001
From: Gokce Yalcin <gokceylcn@gmail.com>
Date: Tue, 10 Jun 2025 22:26:11 -0700
Subject: [PATCH 21/21] refactor(logger): reduce callstack

---
 src/infra/logger/stdLogger.ts | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/src/infra/logger/stdLogger.ts b/src/infra/logger/stdLogger.ts
index 09196a10..2df7d735 100644
--- a/src/infra/logger/stdLogger.ts
+++ b/src/infra/logger/stdLogger.ts
@@ -1,6 +1,6 @@
 import pino from 'pino';
 import dotenv from 'dotenv';
-import { LoggerPort } from '../../core/ports';
+import {LoggerPort} from '../../core/ports';
 
 dotenv.config();
 
@@ -45,9 +45,7 @@ export const errorSerializer = (err: Error): Record<string, unknown> => {
     };
   }
 
-  const serializedError = { ...base, ...instanceProps };
-
-  return serializedError;
+  return {...base, ...instanceProps};
 };
 
 // Function to get caller information from stack trace