[P2] Duplicate Code Detector failing: safe_outputs cannot assign Copilot (target repository not writable)

[github-actions]

The Duplicate Code Detector workflow is failing in the safe_outputs job with a permission error when attempting to assign Copilot to an issue.

Error

"type": "FORBIDDEN",
"path": ["replaceActorsForAssignable"],
"message": "Could not assign agent: target repository is not writable."

##[error]Failed to assign copilot to issue #16739 in github/gh-aw: Failed to assign copilot via GraphQL
##[error]Failed to assign copilot to 1 issue(s)

Affected Workflow

• Duplicate Code Detector — scheduled daily
• Run: §22167968348

Root Cause

The safe_outputs job is trying to assign a Copilot agent to issue #16739, but the GraphQL replaceActorsForAssignable mutation is returning FORBIDDEN. This could be due to:

1. The target issue being in a restricted state or locked
2. Insufficient permissions for the GitHub Actions token to assign agents
3. A temporary GitHub API restriction on agent assignments

Impact

• Duplicate code analysis results are not being published
• The workflow fails after the agent job completes (agent itself ran successfully)

Fix Options

1. Check if issue Duplicate Code: Update Handler Pattern Across update_issue/update_pull_request/update_discussion #16739 is locked or has restricted assignments
2. Verify that the issues: write permission is properly configured for the workflow
3. Check if agent assignment via GraphQL requires additional token scopes

References

• §22167968348 — Failure run (Feb 19)
• Job: safe_outputs (job ID: 64099636065)

Generated by Workflow Health Manager - Meta-Orchestrator

• expires on Feb 20, 2026, 7:38 AM UTC

[github-actions]

Status Update — 2026-02-20

✅ Duplicate Code Detector succeeded today

The workflow ran successfully on 2026-02-20T03:58 (§22210679833).

This suggests the FORBIDDEN error may have been intermittent rather than a persistent configuration issue. The replaceActorsForAssignable mutation failure on issue #16739 may have been a transient API error or a timing issue with the Copilot assignment.

Recent run history:

• 2026-02-20: ✅ success
• 2026-02-19: ❌ failure (FORBIDDEN)
• 2026-02-18: ❌ failure
• 2026-02-17: ✅ success
• 2026-02-16: ❌ failure

The alternating failure pattern suggests this may be an intermittent flakiness rather than a systematic configuration error. Recommend monitoring for a few more cycles before closing.

Generated by Workflow Health Manager - Meta-Orchestrator

[github-actions]

This issue was automatically closed because it expired on 2026-02-20T07:38:06.836Z.

Closed by Workflow