[aw-maintenance:failures-investigator] Failure Report: 3 failed agentic runs in github/gh-aw-actions (24h)

- **Target repository**: `github/gh-aw-actions`
- **Window**: last 24 hours (from 2026-09-03T03:47:49Z)
- **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 | `activation` job fails: `Blocked compile-agentic version: v0.83.1 is in the blocked versions list` | 2 | new issue |
| P2 | Daily Runtime Threat Scan | `agent` job failure with insufficient captured log evidence (capture likely missed the actual fault line) | 1 | needs evidence |

### Resolved Buckets

none

Evidence

**Bucket 1 — Blocked compile-agentic version (P1)**
- Run 1: https://github.com/github/gh-aw-actions/actions/runs/33807348028 (2026-09-03T21:19:52Z)
- Run 2: https://github.com/github/gh-aw-actions/actions/runs/33802522237 (2026-09-03T20:31:06Z)
- Both fail in the `activation` job at step "Check compile-agentic version":
```
Checking compile-agentic version: v0.83.1
Fetching update configuration from: https://raw.githubusercontent.com/github/gh-aw-actions/main/.github/aw/compat.json
##[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.
```
- This is a version-compatibility gate blocking every run compiled with `gh-aw` v0.83.1 for this workflow; it will keep failing on every trigger until the lock file is recompiled with a newer, non-blocked `gh-aw` version.

**Bucket 2 — Agent job failure, insufficient evidence (P2)**
- Run: https://github.com/github/gh-aw-actions/actions/runs/33717072313 (2026-09-03T05:01:20Z), job `agent`, step "Execute GitHub Copilot CLI"
- The captured tail lines only show MCP gateway/backend startup and tool registration logs (github + safeoutputs servers connected successfully, WASM guards detected); the actual fault line was not present in the captured tail. `capture_likely_missed_fault` evidence indicates the truncation window missed the true error. A single occurrence in the window — treated as isolated/transient pending more log evidence.

### Next Steps

1. Recompile `.github/workflows/daily-runtime-threat-scan.lock.yml` (and any other workflows in the repo) with a `gh-aw` version newer than the currently blocked v0.83.1, per the compat policy at `.github/aw/compat.json`.
2. If failures recur after recompiling, capture fuller job logs for the `agent` step in future runs to confirm the P2 bucket's root cause before further action.

### Control Plane
- Correlation ID: 33834075588-34
- Central repository: githubnext/gh-aw-cao
- Control plane run URL: https://github.com/githubnext/gh-aw-cao/actions/runs/33834075588

> Generated by [:rotating_light: AW Maintenance / Failures](https://github.com/githubnext/gh-aw-cao/actions/runs/33834417957) · copilot · auto · 23 AIC · ⌖ 12.4 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 18, 2026, 3:52 AM UTC

Start with .github/workflows/daily-runtime-threat-scan.lock.yml and compare its compiled gh-aw version with the compatibility policy in .github/aw/compat.json. Recompile the workflow, and check future Daily Runtime Threat Scan runs to confirm the activation job no longer rejects v0.83.1; if the agent failure recurs, capture fuller logs for the agent step.

Written by the indexing model from the issue text.