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+# Group Color and Grok Build Tool Calling PR Manifest
+
+This draft tracks the reviewed Stage 12 implementation for:
+
+- Persistent custom group colors with strict `#RRGGBB` validation.
+- Stable automatic fallback colors for existing groups.
+- Group selector layout fixes so protocol badges no longer obscure group names.
+- Grok Build tool-calling compatibility fixes for `tool_choice`, sequential tool calls, argument completion, terminal response snapshots, sparse output indexes, and duplicate terminal events.
+- A dedicated Grok Tool Calling account probe.
+- Migration `161_add_group_color.sql` and Ent runtime descriptor alignment.
+
+## Reviewed source archive
+
+- Google Drive: https://drive.google.com/file/d/1NqJAVDm61KlMZh76TKScGi6FQqez0BiQ/view?usp=drivesdk
+- Local artifact: `LightBridge-0.2.80-group-color-grok-toolcall-stage12-full.zip`
+
+The archive was created after repository-level static checks and is retained as the source-of-truth payload for this draft.
+
+## Validation completed in the sandbox
+
+- Go formatting and AST parsing.
+- Frontend TypeScript/Vue syntax parsing.
+- YAML/JSON parsing and duplicate-key checks.
+- GitHub Actions shell syntax checks.
+- Release configuration invariant checks.
+- Codebase inventory validation.
+- Secret scan.
+- ZIP CRC/integrity validation.
+
+Full Go 1.26.5 compilation, pnpm build, and real Grok Build E2E tool-calling tests remain required before this PR can be marked ready for merge.
+
+## Important delivery note
+
+The ChatGPT GitHub connector cannot upload a sandbox ZIP as a repository tree in one operation. This draft is intentionally not presented as merge-ready until the reviewed payload is applied to the branch without overwriting newer `main` changes.