🏥 Safe Output Health Report - November 27, 2025

[github-actions[bot]]

Safe output health monitoring results from the last 24 hours show excellent system performance with minimal failures.

Executive Summary

• Period: Last 24 hours (Nov 26 - Nov 27, 2025)
• Runs Analyzed: 62 workflow runs
• Safe Output Jobs Executed: 31 (out of 92 total job opportunities)
• Safe Output Jobs Succeeded: 30
• Safe Output Jobs Failed: 1
• Overall Success Rate: 96.8% ✅
• Health Status: Excellent
• Critical Issues: 0

Full Health Report

Safe Output Job Statistics by Type

Job Type	Total Runs	Succeeded	Cancelled	Skipped	Failed	Success Rate
add_comment	27	15	1	11	0	100% ✅
add_labels	14	6	1	7	0	100% ✅
create_issue	33	1	1	31	0	100% ✅
create_pull_request	6	1	3	2	0	100% ✅
push_to_pull_request_branch	12	7	3	1	1	87.5% ⚠️

Analysis

• Most Reliable Jobs: add_comment, add_labels, create_issue, and create_pull_request all maintained 100% success rates
• Attention Required: push_to_pull_request_branch had 1 failure out of 8 executed jobs (87.5% success rate)

Error Analysis

Failure Details

1. Branch Not Found During Push Operation

Run: §19720041973
Workflow: Changeset Generator
Job Type: push_to_pull_request_branch
Timestamp: 2025-11-26 23:18:01 UTC

Error Message:

fatal: Needed a single revision
Branch copilot/update-playwright-server-config does not exist on origin, can't push to it

Root Cause:
The PR branch copilot/update-playwright-server-config (#4876) was deleted or renamed after the agent job completed but before the safe output job attempted to push changes. This represents a race condition where:

1. Agent job successfully completed and generated a patch
2. PR branch validation passed (branch existed at validation time)
3. Branch was deleted/renamed (possibly by PR merge or manual action)
4. Safe output job attempted to checkout the branch and failed

Context:

• PR Update Playwright MCP server to use official Docker image #4876: "Update Playwright MCP server to use official Docker image"
• Target branch: copilot/update-playwright-server-config
• PR labels: smoke
• Patch size: 1 KB

Impact: Low - The failure prevented pushing changes but did not affect data integrity or other operations. The agent work was preserved in artifacts.

Error Patterns Database

Pattern: Branch Not Found on Push

• Pattern ID: branch-not-found-on-push
• Category: Race Condition
• First Seen: 2025-11-27
• Occurrences: 1
• Affected Jobs: push_to_pull_request_branch
• Signature: fatal: Needed a single revision.*Branch.*does not exist on origin

Resolution Status: Open

Recommendations

1. Add Branch Existence Validation Before Push

Priority: Medium
Category: Error Handling
Affected Jobs: push_to_pull_request_branch

Description:
The push_to_pull_request_branch job should validate that the target branch still exists immediately before attempting git operations. The current implementation checks for branch existence but encounters a race condition when the branch is deleted between PR validation and push operation.

Suggested Fix:

1. Add an additional branch existence check immediately before git checkout
2. Implement retry logic with exponential backoff (1-2 retries)
3. Provide better error messaging that distinguishes between:
   • Branch never existed (configuration error)
   • Branch was deleted after validation (race condition)
4. Consider adding a workflow input to control behavior: fail vs. skip when branch not found

Implementation Example:

// Before attempting checkout
const branchExists = await exec.getExecOutput('git', [
  'ls-remote', '--heads', 'origin', branchName
]);

if (branchExists.stdout.trim() === '') {
  const message = `Branch ${branchName} no longer exists on origin. It may have been deleted after the PR was closed or merged.`;
  core.warning(message);
  
  if (process.env.GH_AW_PUSH_IF_BRANCH_MISSING === 'error') {
    core.setFailed(message);
  } else {
    core.info('Skipping push operation due to missing branch');
  }
  return;
}

2. Track Branch Lifecycle Events

Priority: Low
Category: Monitoring
Affected Jobs: push_to_pull_request_branch

Description:
Consider logging branch lifecycle events (deletions, force-pushes) that occur between agent job completion and safe output job execution to better diagnose and prevent race conditions.

Suggested Fix:

1. Log the branch HEAD SHA at validation time
2. Compare with branch HEAD SHA before push operation
3. Add telemetry for branch deletion events
4. Track time delta between agent completion and safe output execution

Historical Context

3-Day Trend Analysis

Date	Runs	Safe Output Jobs	Success Rate	Failures	Health Status
2025-11-27	62	31	96.8%	1	Excellent ✅
2025-11-26	117	48	93.8%	3	Good ✅
2025-11-25	82	29	96.6%	1	Excellent ✅

Trend: Stable and healthy. Success rates consistently above 93%, with most days achieving "Excellent" status.

Recurring Issues

The following error patterns have been observed across multiple audits:

1. Permissions Issues (Historical):

   • Token lacks permission to assign issues (4 occurrences, last seen 2025-11-26)
   • Token lacks permission to request PR reviewers (5 occurrences, last seen 2025-11-26)
   • Status: Not observed in today's audit ✅

2. Branch Operations (New):

   • Branch not found during push operation (1 occurrence, seen today)
   • Status: Requires monitoring

Metrics and KPIs

• Overall Safe Output Success Rate: 96.8% (target: >95%) ✅
• Most Reliable Job Type: add_comment, add_labels, create_issue, create_pull_request (100% success)
• Most Problematic Job Type: push_to_pull_request_branch (87.5% success)
• Jobs Skipped: 61 (66% of total opportunities) - This is normal and expected when agents don't produce safe output items
• Average Jobs per Run: 0.5 safe output jobs executed per workflow run

Next Steps

• Monitor push_to_pull_request_branch for additional branch-not-found failures
• Consider implementing recommendation rejig docs #1 (branch validation) if pattern recurs
• Review branch lifecycle in workflows that use push_to_pull_request_branch
• Continue daily monitoring and pattern detection

Summary

Safe output jobs are performing excellently with a 96.8% success rate. The single failure today was a race condition that did not impact system integrity. All other job types maintained 100% success rates. No critical issues detected.

---

References:

• §19720041973

AI generated by Safe Output Health Monitor

[github-actions[bot]]

This discussion was automatically closed because it was created by an agentic workflow more than 3 days ago.