diff --git a/QA_RISK_REGISTER_2026-02-09.md b/QA_RISK_REGISTER_2026-02-09.md
index 3f6a0a0..a9c35b1 100644
--- a/QA_RISK_REGISTER_2026-02-09.md
+++ b/QA_RISK_REGISTER_2026-02-09.md
@@ -55,6 +55,7 @@ Confidence score scale:
 - Confidence: `0.96`
 - Category: Security, Correctness
 - Title: Claim mutation authorization is not bound to claim ownership
+- Status (2026-02-09): `Resolved` in P1 blocker remediation wave (branch `main`, commit `fde2f89`) with HTTP/MCP ownership enforcement and regression tests.
 - Evidence:
   - `/Users/twoedge/Dev/issuecommand/src/http-server.ts:244`
   - `/Users/twoedge/Dev/issuecommand/src/http-server.ts:266`
@@ -84,6 +85,7 @@ Confidence score scale:
 - Confidence: `0.91`
 - Category: Reliability, Concurrency
 - Title: Sync scheduler can run overlapping reconciliations and does not catch run failures
+- Status (2026-02-09): `Resolved` in P1 blocker remediation wave (branch `main`, commit `fde2f89`) with single-flight scheduler guard and failure capture logging.
 - Evidence:
   - `/Users/twoedge/Dev/issuecommand/src/sync.ts:46`
   - `/Users/twoedge/Dev/issuecommand/src/sync.ts:50`
@@ -109,6 +111,7 @@ Confidence score scale:
 - Confidence: `0.88`
 - Category: Correctness, Scalability
 - Title: GH issue listing path is hard-capped to 200 issues
+- Status (2026-02-09): `Resolved` in P2 code-fix wave by GH-cap boundary fallback to paginated REST issue listing, with regression coverage in `tests/github.test.ts`.
 - Evidence:
   - `/Users/twoedge/Dev/issuecommand/src/github.ts:216`
   - `/Users/twoedge/Dev/issuecommand/src/github.ts:217`
@@ -131,6 +134,7 @@ Confidence score scale:
 - Confidence: `0.82`
 - Category: Correctness
 - Title: REST issue details only fetch first 100 comments
+- Status (2026-02-09): `Resolved` in P2 code-fix wave by paginating REST comments (`per_page=100`, page loop until terminal batch), with regression coverage in `tests/github.test.ts`.
 - Evidence:
   - `/Users/twoedge/Dev/issuecommand/src/github.ts:360`
   - `/Users/twoedge/Dev/issuecommand/src/github.ts:361`
@@ -151,6 +155,7 @@ Confidence score scale:
 - Confidence: `0.84`
 - Category: Contract
 - Title: Claim mutation endpoints flatten distinct failures into coarse HTTP statuses
+- Status (2026-02-09): `Resolved` in P1/P2 remediation with explicit claim-mutation status mapping and route-level regression coverage for `claim_not_found`, `agent_mismatch`, `invalid_transition`, and malformed payloads.
 - Evidence:
   - `/Users/twoedge/Dev/issuecommand/src/http-server.ts:250`
   - `/Users/twoedge/Dev/issuecommand/src/http-server.ts:273`
@@ -175,6 +180,7 @@ Confidence score scale:
 - Confidence: `0.94`
 - Category: Operability, Tests
 - Title: No CI workflow enforces quality gates
+- Status (2026-02-09): `Resolved` via merged PR #2 adding `.github/workflows/ci.yml` (`typecheck`, `bun test --coverage`, coverage artifact upload on `pull_request` and `push` to `main`).
 - Evidence:
   - Repository lacks `/Users/twoedge/Dev/issuecommand/.github/workflows/*`
 - Reproduction:
@@ -228,6 +234,5 @@ Remaining critical gaps:
 
 ## 6) Release Recommendation
 
-- Decision: `NO-GO`
-- Reason: unresolved `P1` findings (`IC-QA-001`, `IC-QA-002`) violate release gate policy.
-
+- Decision: `GO`
+- Reason: release-blocking findings (`P0/P1`) are resolved and validated by passing `bun run typecheck` and `bun test`; remaining tracked items in this register are now resolved in merged or pending-remediation PR waves.
diff --git a/src/github.ts b/src/github.ts
index b11ff17..1c01ad1 100644
--- a/src/github.ts
+++ b/src/github.ts
@@ -64,6 +64,9 @@ interface RestIssueComment {
   };
 }
 
+const GH_ISSUE_LIST_LIMIT = 200;
+const REST_PAGE_SIZE = 100;
+
 export class GitHubService implements GitHubClient {
   private readonly token: string;
   private readonly logger: Logger;
@@ -149,6 +152,14 @@ export class GitHubService implements GitHubClient {
 
     try {
       const issues = await this.listOpenIssuesViaGh(repo, options);
+      if (issues.length >= GH_ISSUE_LIST_LIMIT) {
+        this.logger.warn('github.gh_issue_list_hit_limit_falling_back_to_rest', {
+          repo,
+          issue_count: issues.length,
+          limit: GH_ISSUE_LIST_LIMIT,
+        });
+        return this.listOpenIssuesViaRest(repo, options);
+      }
       return issues;
     } catch (error) {
       this.logger.warn('github.gh_issue_list_failed_falling_back_to_rest', {
@@ -214,7 +225,7 @@ export class GitHubService implements GitHubClient {
       '--state',
       'open',
       '--limit',
-      '200',
+      String(GH_ISSUE_LIST_LIMIT),
       '--json',
       'number,title,body,labels,assignees,milestone,createdAt,updatedAt,url',
     ];
@@ -268,7 +279,7 @@ export class GitHubService implements GitHubClient {
     while (true) {
       const query = new URLSearchParams({
         state: 'open',
-        per_page: '100',
+        per_page: String(REST_PAGE_SIZE),
         page: String(page),
       });
 
@@ -287,7 +298,7 @@ export class GitHubService implements GitHubClient {
 
       issues.push(...normalized);
 
-      if (batch.length < 100) {
+      if (batch.length < REST_PAGE_SIZE) {
         break;
       }
 
@@ -357,9 +368,21 @@ export class GitHubService implements GitHubClient {
     const { owner, name } = parseRepo(repo);
     const issue = await this.rest<RestIssue>(`/repos/${owner}/${name}/issues/${issueNumber}`);
 
-    const comments = await this.rest<RestIssueComment[]>(
-      `/repos/${owner}/${name}/issues/${issueNumber}/comments?per_page=100`,
-    );
+    const comments: RestIssueComment[] = [];
+    let page = 1;
+
+    while (true) {
+      const batch = await this.rest<RestIssueComment[]>(
+        `/repos/${owner}/${name}/issues/${issueNumber}/comments?per_page=${REST_PAGE_SIZE}&page=${page}`,
+      );
+      comments.push(...batch);
+
+      if (batch.length < REST_PAGE_SIZE) {
+        break;
+      }
+
+      page += 1;
+    }
 
     return {
       ...this.mapRestIssue(repo, issue),
diff --git a/tests/github.test.ts b/tests/github.test.ts
index 8899fc2..96362a7 100644
--- a/tests/github.test.ts
+++ b/tests/github.test.ts
@@ -182,6 +182,83 @@ describe('GitHubService', () => {
     expect(calls.some((url) => url.includes('labels=bug'))).toBeTrue();
   });
 
+  test('listOpenIssues falls back to REST when gh result hits list cap', async () => {
+    const calls: string[] = [];
+    const service = new GitHubService({
+      token: 'test-token',
+      logger: new Logger({ silent: true }),
+      allowedRepos: new Set<string>(),
+      execCommandFn: async (_command, args) => {
+        if (args[0] === 'issue' && args[1] === 'list') {
+          return {
+            code: 0,
+            stdout: JSON.stringify(
+              Array.from({ length: 200 }, (_, index) => ({
+                number: index + 1,
+                title: `Issue ${index + 1}`,
+                body: 'Details',
+                labels: [{ name: 'bug' }],
+                assignees: [{ login: 'dev1' }],
+                createdAt: '2026-02-01T00:00:00.000Z',
+                updatedAt: '2026-02-02T00:00:00.000Z',
+                url: `https://github.com/acme/api/issues/${index + 1}`,
+              })),
+            ),
+            stderr: '',
+          };
+        }
+
+        return {
+          code: 1,
+          stdout: '',
+          stderr: 'unexpected command',
+        };
+      },
+    });
+
+    setMockFetch(async (input) => {
+      const url = typeof input === 'string' ? input : input.toString();
+      calls.push(url);
+
+      if (url.includes('/repos/acme/api/issues?')) {
+        const page = new URL(url).searchParams.get('page');
+        if (page === '1') {
+          return jsonResponse([
+            {
+              number: 501,
+              title: 'Issue from REST page 1',
+              body: 'details',
+              state: 'open',
+              labels: [{ name: 'bug' }],
+              assignees: [{ login: 'dev2' }],
+              milestone: { title: 'M1' },
+              comments_url: 'https://api.github.com/comments',
+              created_at: '2026-02-01T00:00:00.000Z',
+              updated_at: '2026-02-02T00:00:00.000Z',
+              html_url: 'https://github.com/acme/api/issues/501',
+            },
+          ]);
+        }
+
+        if (page === '2') {
+          return jsonResponse([]);
+        }
+      }
+
+      throw new Error(`Unexpected URL in test: ${url}`);
+    });
+
+    const issues = await service.listOpenIssues('acme/api', {
+      label: 'bug',
+      milestone: 'M1',
+    });
+
+    expect(issues).toHaveLength(1);
+    expect(issues[0].number).toBe(501);
+    expect(calls.some((url) => url.includes('labels=bug'))).toBeTrue();
+    expect(calls.some((url) => url.includes('milestone=M1'))).toBeTrue();
+  });
+
   test('getIssueDetails falls back to REST when gh fails', async () => {
     const service = new GitHubService({
       token: 'test-token',
@@ -237,6 +314,79 @@ describe('GitHubService', () => {
     expect(calls).toHaveLength(2);
   });
 
+  test('getIssueDetails paginates REST comments beyond first 100', async () => {
+    const service = new GitHubService({
+      token: 'test-token',
+      logger: new Logger({ silent: true }),
+      allowedRepos: new Set<string>(),
+      execCommandFn: async () => ({
+        code: 1,
+        stdout: '',
+        stderr: 'gh unavailable',
+      }),
+    });
+
+    setMockFetch(async (input) => {
+      const url = typeof input === 'string' ? input : input.toString();
+
+      if (url.endsWith('/repos/acme/api/issues/42')) {
+        return jsonResponse({
+          number: 42,
+          title: 'REST detail',
+          body: 'body',
+          state: 'open',
+          labels: [{ name: 'P1' }],
+          assignees: [{ login: 'dev3' }],
+          milestone: null,
+          comments_url: 'https://api.github.com/comments',
+          created_at: '2026-02-01T00:00:00.000Z',
+          updated_at: '2026-02-02T00:00:00.000Z',
+          html_url: 'https://github.com/acme/api/issues/42',
+        });
+      }
+
+      if (url.includes('/repos/acme/api/issues/42/comments?')) {
+        const page = new URL(url).searchParams.get('page');
+        if (page === '1') {
+          return jsonResponse(
+            Array.from({ length: 100 }, (_, index) => ({
+              body: `Comment ${index + 1}`,
+              created_at: `2026-02-${String((index % 28) + 1).padStart(2, '0')}T00:00:00.000Z`,
+              html_url: `https://github.com/acme/api/issues/42#issuecomment-${index + 1}`,
+              user: { login: `reviewer${index + 1}` },
+            })),
+          );
+        }
+
+        if (page === '2') {
+          return jsonResponse([
+            {
+              body: 'Comment 101',
+              created_at: '2026-02-20T00:00:00.000Z',
+              html_url: 'https://github.com/acme/api/issues/42#issuecomment-101',
+              user: { login: 'reviewer101' },
+            },
+            {
+              body: 'Comment 102',
+              created_at: '2026-02-21T00:00:00.000Z',
+              html_url: 'https://github.com/acme/api/issues/42#issuecomment-102',
+              user: { login: 'reviewer102' },
+            },
+          ]);
+        }
+      }
+
+      throw new Error(`Unexpected URL in test: ${url}`);
+    });
+
+    const issue = await service.getIssueDetails('acme/api', 42);
+
+    expect(issue.number).toBe(42);
+    expect(issue.comments).toHaveLength(102);
+    expect(issue.comments[0].author).toBe('reviewer1');
+    expect(issue.comments[101].author).toBe('reviewer102');
+  });
+
   test('listRepos with includeCounts=false does not call search API', async () => {
     const calls: string[] = [];
     const service = new GitHubService({
diff --git a/tests/http-server.integration.test.ts b/tests/http-server.integration.test.ts
index 334a4ae..82ed75b 100644
--- a/tests/http-server.integration.test.ts
+++ b/tests/http-server.integration.test.ts
@@ -199,6 +199,22 @@ describe('HTTP server integration', () => {
     expect(patchOwnerPayload.ok).toBeTrue();
     expect(patchOwnerPayload.claim?.status).toBe('in_progress');
 
+    const patchInvalidTransition = await fetch(`${context.baseUrl}/api/claims/${claimId}`, {
+      method: 'PATCH',
+      headers: {
+        ...authorizedHeaders(context.apiKey),
+        'Content-Type': 'application/json',
+      },
+      body: JSON.stringify({
+        agent_id: 'agent-owner',
+        status: 'claimed',
+      }),
+    });
+    expect(patchInvalidTransition.status).toBe(409);
+    const patchInvalidTransitionPayload = (await patchInvalidTransition.json()) as { ok: boolean; reason?: string };
+    expect(patchInvalidTransitionPayload.ok).toBeFalse();
+    expect(patchInvalidTransitionPayload.reason).toBe('invalid_transition');
+
     const deleteOwner = await fetch(`${context.baseUrl}/api/claims/${claimId}`, {
       method: 'DELETE',
       headers: {