Repository navigation
[deep-report] Fix daily-go-test-parallelizer: codex engine incompatible with Copilot compatibility adapter (exec tool call) #66732
Description
Description
daily-go-test-parallelizer.md configures engine: { id: codex, model-provider: github } with model: copilot/gpt-5.6-terra (lines 14–17), which routes the codex engine through GitHub's Copilot-compatibility adapter. That adapter only supports the apply_patch custom tool call, but the codex harness emits an exec tool call, so every run that reaches a tool call fails immediately with invalid_request_error / unsupported_custom_tool:
"Unsupported Responses custom tool call 'exec'. Only 'apply_patch' is supported through the Copilot compatibility adapter."
This was first auto-filed as #65950 (2026-10-05), auto-closed/expired on 2026-10-06 without a fix landing, and has since recurred continuously — at least 8 separate auto-filed failure/incomplete-result issues for this workflow on 2026-10-07 alone (#66392, #66394, #66411, #66439, #66440, #66481, #66513, #66514, #66570, #66604, #66605, #66628, #66629, #66653, #66683, #66697), per the Agent Job Health Monitor's 2026-10-07 report (#66705): "Daily Go Test Parallelizer: 3 runs, 2 failures, 66% failure rate" and recommendation #4 to re-file since "the expiry mechanism silently dropped a real, repeating bug." This is currently the single highest-frequency failure signature in the fleet.
Expected Impact
Stops ~every-2-hours wasted scheduled runs (and the resulting noise of duplicate auto-filed failure issues) for this workflow, restoring its actual function (adding t.Parallel to safe Go tests via daily round-robin analysis).
Suggested Fix
Either:
- Route this workflow's codex engine through a native codex-compatible endpoint instead of the Copilot compatibility adapter (drop
model-provider: github/ pick amodelthe adapter natively supportsexectool calls for), or - Switch the workflow to a different engine (e.g.
claudeor plaincopilot) that doesn't hit this tool-call incompatibility.
Suggested Agent
Copilot coding agent or a maintainer familiar with engine/model-provider routing.
Estimated Effort
Quick (< 1 hour) — likely a one-line frontmatter change plus make recompile.
Data Source
DeepReport Intelligence Briefing — incremental cycle since #66663 (cycle 12), sourced from Agent Job Health Monitor report #66705 and live verification of .github/workflows/daily-go-test-parallelizer.md:14-17.
Generated by 🔬 Deep Report · claude · agent · 171.9 AIC · ⌖ 5.12 AIC · ⊞ 7.1K · ◷
- expires on Oct 9, 2026, 5:15 PM UTC-08:00
Activity
github-actions commentedon Oct 8, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 9, 2026
🍪 Issue Monster selected this for Copilot
I've identified this issue as a good candidate for automated resolution and requested assignment to the Copilot coding agent.
If assignment succeeds, the Copilot coding agent will analyze the issue and create a pull request with the fix.
Om nom nom! 🍪
github-actions commentedon Oct 10, 2026
This issue was automatically closed because it expired on 2026-10-10T01:15:37.888Z.