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

Target repository: `github/gh-aw-actions`

- **Window**: last 24 hours (from 2026-09-02T20:46:47Z)
- **Failed agentic runs**: 3
- **Failure buckets**: 2 (P0: 1, P1: 1, P2: 0)
- **Agentic workflows in repository**: 1

### Failure Buckets

| Severity | Workflow | Error signature | Runs | Tracking |
|---|---|---|---|---|
| P0 | Daily Runtime Threat Scan | `activation` job fails at "Check compile-agentic version": `Blocked compile-agentic version: v0.83.1 is in the blocked versions list` | 1 | new issue |
| P1 | Daily Runtime Threat Scan | `agent` job fails at "Execute GitHub Copilot CLI" step during MCP gateway startup, no explicit error line captured in the truncated tail | 2 | new issue |

### Resolved Buckets

none

Evidence

**Bucket 1 (compile-agentic blocked version)**
- Run: `github/gh-aw-actions` run 33802522237 (2026-09-03T20:29:07Z), url: https://github.com/github/gh-aw-actions/actions/runs/33802522237
- Failed job/step: `activation` / "Check compile-agentic version"
- Log excerpt: `##[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.`

**Bucket 2 (agent/Execute GitHub Copilot CLI)**
- Runs:
- `github/gh-aw-actions` run 33717072313 (2026-09-03T04:59:45Z), url: https://github.com/github/gh-aw-actions/actions/runs/33717072313
- `github/gh-aw-actions` run 33684447255 (2026-09-02T21:18:57Z), url: https://github.com/github/gh-aw-actions/actions/runs/33684447255
- Failed job/step (both): `agent` / "Execute GitHub Copilot CLI"
- Both truncated tails (50 lines) show MCP servers connecting successfully (`github`, `safeoutputs`) and the MCP Gateway starting in containerized mode with baked-in WASM guards detected, then cut off before any explicit error is printed. The available 50-line window ends mid-startup (`[INFO] Auto-detected baked-in WASM guards at /guards`), so the actual failing statement is not visible in the pre-fetched payload. A GitHub API rate limit (retry after 6m34s) prevented fetching the full job logs during this run to confirm the terminal error line.

### Next Steps

1. (P0) Update the `gh-aw` version pinned/compiled into `daily-runtime-threat-scan.lock.yml` in `github/gh-aw-actions` — v0.83.1 is on the compile-agentic blocked-versions list — and recompile the workflow.
2. (P1) Re-run "Daily Runtime Threat Scan" with full (non-truncated) job log capture, or fetch the complete `agent` job log for one of the two failing runs, to identify the exact error thrown after MCP Gateway/WASM guard startup during "Execute GitHub Copilot CLI".

### Control Plane
- Correlation ID: 33804008600-65
- Central repository: githubnext/gh-aw-cao
- Control plane run: https://github.com/githubnext/gh-aw-cao/actions/runs/33804008600

> Generated by [:rotating_light: AW Maintenance / Failures](https://github.com/githubnext/gh-aw-cao/actions/runs/33804008600) · copilot · auto · 43.5 AIC · ⌖ 15.6 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, 8:53 PM UTC

Start with daily-runtime-threat-scan.lock.yml and the failed activation step, then inspect the Daily Runtime Threat Scan workflow and the linked run logs. Recompile after updating the pinned gh-aw version, and capture complete agent-job logs to identify the MCP Gateway/Copilot CLI failure. Done means the workflow runs successfully and both failure buckets are resolved or clearly diagnosed.

Written by the indexing model from the issue text.