Harden Avenger against transient Claude harness failure exhaustion

[Copilot]

Avenger failed when repeated Claude runtime crashes consumed the retry budget, leaving no room to recover from a subsequent transport-level invalid JSON request-body failure. This change increases retry headroom for that workflow so transient crash sequences are less likely to terminate the run early.

• Workflow runtime guardrail adjustment

  • Added a workflow-level env override in avenger.md:
    • GH_AW_HARNESS_MAX_RETRIES: "4"
  • This gives the Claude harness one additional retry attempt in Avenger runs.

• Compiled workflow synchronization

  • Regenerated avenger.lock.yml so compiled workflow behavior matches frontmatter source.

env:
  GOTOOLCHAIN: auto
  GH_AW_HARNESS_MAX_RETRIES: "4"

• Fixes [aw] Avenger failed #53041

[github-actions]

✅ Design Decision Gate 🏗️ completed the design decision gate check.

No ADR enforcement needed: PR #53043 does not have the 'implementation' label and has 0 new lines of code in business logic directories (threshold: 100).

🏗️ ADR gate enforced by Design Decision Gate 🏗️

[github-actions]

✅ Ponytail Reviewer completed successfully!

Trivial one-line config change (adds GH_AW_HARNESS_MAX_RETRIES env var) plus its auto-generated lock file mirror. Nothing to cut. Lean already. Ship.

Generated by Ponytail Reviewer for #53043

[github-actions]

✅ Test Quality Sentinel completed test quality analysis.

No test files were added or modified in this PR. Test Quality Sentinel skipped. (PR #53043 only modified workflow markdown and lock files)

🧪 Test quality analysis by Test Quality Sentinel

[github-actions]

🧠 Matt Pocock Skills Reviewer has completed the skills-based review. ✅

🧠 Reviewed using Matt Pocock's skills by Matt Pocock Skills Reviewer

[github-actions]

✅ PR Code Quality Reviewer completed the code quality review.

🔎 Code quality review by PR Code Quality Reviewer

[github-actions]

Great work! 🎯 This PR looks ready for review.

This fix addresses a concrete issue in the Avenger CI workflow where transient Claude harness failures were exhausting the retry budget too quickly, preventing recovery from subsequent transport-level errors. Your solution — adding one additional retry attempt via GH_AW_HARNESS_MAX_RETRIES: "4" — is focused and minimal.

Why this works:

• Increases retry headroom for the harness, reducing the likelihood of early termination when facing rapid failure sequences
• Compiled workflow sync is correct (.lock.yml properly regenerated from .md)
• Validation checklist in the PR body confirms targeted testing

The fix is well-documented, focused, and follows the agentic development process for this repository. Ready to move forward.

Generated by ✅ Contribution Check · auto · 65.6 AIC · ⌖ 3.96 AIC · ⊞ 9.1K · ◷

[Copilot]

Pull request overview

Increases Avenger’s Claude harness retry budget to better tolerate transient failures.

Changes:

• Raises harness retries from 3 to 4.
• Regenerates the compiled workflow.

Show a summary per file

File	Description
.github/workflows/avenger.md	Adds the retry override.
.github/workflows/avenger.lock.yml	Synchronizes compiled workflow output.

Review details

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• Files reviewed: 2/2 changed files
• Comments generated: 0
• Review effort level: Balanced

[github-actions]

Comment Memory

reviewed_at: 2026-08-16T00:00:00Z
review_event: COMMENT
top_themes:
  - workflow retry budget increase only
  - no changed-line correctness or security regressions found
files_reviewed:
  - .github/workflows/avenger.md
  - .github/workflows/avenger.lock.yml
comment_count: 0

Note

This comment is managed by comment memory.

It stores persistent context for this thread in the code block at the top of this comment.
Edit only the text inside the backtick fences; workflow metadata and the footer are regenerated automatically.

Learn more about comment memory

🔎 Code quality review by PR Code Quality Reviewer · gpt54 · 2.74 AIC · ⌖ 5.37 AIC · ⊞ 6.9K · ◷
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[github-actions]

Verdict

Non-blocking change: this only increases Avenger's harness retry budget and keeps the compiled workflow in sync.

The changed lines do not introduce a correctness, security, or maintainability problem that warrants blocking the PR.

I reviewed the source workflow change and the regenerated lockfile. The diff is limited to setting GH_AW_HARNESS_MAX_RETRIES to 4 for this workflow and updating generated metadata accordingly. I did not find an actionable bug on the changed lines.

🔎 Code quality review by PR Code Quality Reviewer · gpt54 · 2.74 AIC · ⌖ 5.37 AIC · ⊞ 6.9K
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[github-actions]

LGTM. Adds GH_AW_HARNESS_MAX_RETRIES: 4 to both avenger.md and the compiled avenger.lock.yml to harden against transient Claude harness failure exhaustion. The frontmatter hash in the lock file metadata is correctly updated to match.

🧵 Reviewed using Impeccable skills by Impeccable Skills Reviewer · sonnet46 · 17.2 AIC · ⌖ 7.01 AIC · ⊞ 5.6K

[github-actions]

Skills-Based Review 🧠

Applied /diagnosing-bugs — approving this targeted fix.

📋 Review Notes

Assessment

• ✅ Root cause is clearly identified: transient Claude crash sequences were consuming the full retry budget (default 3), leaving no headroom for a subsequent transport-level failure
• ✅ Fix is surgical: one env variable in avenger.md, lock file regenerated correctly
• ✅ The GH_AW_HARNESS_MAX_RETRIES knob is the correct lever — documented in docs/src/content/docs/reference/environment-variables.md, tested in claude_harness.test.cjs
• ✅ Metadata hash in lock file updated, confirming proper gh aw recompile was run

One observation (non-blocking)

The PR description explains the cascade failure well, but a brief inline comment in avenger.md (e.g. # Increased from default 3 to absorb transient Claude crash sequences) would help future readers understand the intent without tracing back to this PR.

🧠 Reviewed using Matt Pocock's skills by Matt Pocock Skills Reviewer · sonnet46 · 25.9 AIC · ⌖ 8.37 AIC · ⊞ 7.7K
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[github-actions]

🎉 This pull request is included in a new release.

Release: v0.87.1