[aw-maintenance:failures-investigator] Failure Report: github/gh-aw-actions (24h window)

- **Target repository**: `github/gh-aw-actions`
- **Window**: last 24 hours (from 2026-09-02T22:42:22Z)
- **Failed agentic runs**: 3
- **Failure buckets**: 2 (P0: 0, P1: 1, P2: 1)
- **Agentic workflows in repository**: 1

### Failure Buckets

| Severity | Workflow | Error signature | Runs | Tracking |
|---|---|---|---|---|
| P1 | Daily Runtime Threat Scan | `##[error]Blocked compile-agentic version: v0.83.1 is in the blocked versions list` (activation job) | 2 | new issue |
| P2 | Daily Runtime Threat Scan | Agent-job failure on step "Execute GitHub Copilot CLI"; captured log tail contains no error/exception lines, only MCP tool schema and gateway startup noise | 1 | needs evidence |

### Resolved Buckets

none

Evidence

**Bucket 1 — Blocked compile-agentic version (P1)**
- Run `33807348028` (2026-09-03T21:19:52Z): job `activation`, step `Check compile-agentic version`. Log: `##[error]Blocked compile-agentic version: v0.83.1 is in the blocked versions list. Update gh-aw to the latest version and recompile your workflow.`
- Run `33802522237` (2026-09-03T20:29:07Z): job `activation`, step `Check compile-agentic version`. Identical error: `##[error]Blocked compile-agentic version: v0.83.1 is in the blocked versions list. Update gh-aw to the latest version and recompile your workflow.`
- Both runs fail before the agent job starts, blocking every scheduled run of `Daily Runtime Threat Scan` until the workflow is recompiled with a non-blocked `gh-aw` version.

**Bucket 2 — Agent job failure, unclear signature (P2)**
- Run `33717072313` (2026-09-03T04:59:45Z): job `agent`, step `Execute GitHub Copilot CLI` reported as failed. The captured tail of the log only shows MCP server connection success (`✓ github: connected`, `✓ safeoutputs: connected`), gateway startup, and safeoutputs tool-schema JSON — no explicit error, exception, or non-zero exit line is present in the truncated capture. Root cause could not be determined from the available evidence; the log capture likely truncated before the actual failure point.

### Next Steps

1. Update the `gh-aw` compile toolchain used by `github/gh-aw-actions` past the blocked `v0.83.1` version and recompile `daily-runtime-threat-scan.md` to regenerate its `.lock.yml`, resolving the P1 activation-blocking bucket affecting every scheduled run.
2. For the isolated `agent` job failure in run `33717072313`, pull the full (non-truncated) job log for the `Execute GitHub Copilot CLI` step to identify the actual failure point before filing a fix issue.

### Control Plane
- Correlation ID: 33814181349-75
- Central repository: githubnext/gh-aw-cao
- Control plane run URL: https://github.com/githubnext/gh-aw-cao/actions/runs/33814181349

> Generated by [:rotating_light: AW Maintenance / Failures](https://github.com/githubnext/gh-aw-cao/actions/runs/33814181349) · copilot · auto · 24.6 AIC · ⌖ 12.7 AIC · ⊞ 14.9K · [◷](https://github.com/search?q=repo%3Agithubnext%2Fgh-aw-cao+is%3Aissue+%22gh-aw-workflow-call-id%3A+githubnext%2Fgh-aw-cao%2Faw-failures-investigator%22&type=issues)
> - [x] expires on Sep 17, 2026, 10:47 PM UTC

Start by checking the gh-aw compile toolchain used for github/gh-aw-actions and the workflow source daily-runtime-threat-scan.md. Recompile it with a non-blocked version and inspect the regenerated .lock.yml; done means the activation failure is gone. Separately, retrieve the full log for run 33717072313 and the Execute GitHub Copilot CLI step to identify the missing failure evidence.

Written by the indexing model from the issue text.