[self-care:open-source-failures] Open source failure digest for 2026-09-05 snapshot

Snapshot 2026-09-05T03:58:31.629Z covering the last 168 hours found 1007 failed runs across 7 public projects; the bounded snapshot was truncated to the newest 100 failures, and 3 recurring P1 clusters in `githubnext/gh-aw-cao` are not already tracked.

**Action:** CAO maintainers should triage the two remediation issues below first and confirm fresh runs stop failing for those signatures; accept when the representative workflows complete successfully without reproducing the same cluster signatures.

Critical findings:
- 1 untracked P1 cluster spans 4 AW Doctor and Dependabot workflows with 19 recurrences of `Target authority missing: add .github/workflows/cao.json to the target default branch for live mode`.
- 1 untracked P1 cluster hits `AW Optimization / AI Credit Savings` 5 times at `Generate GitHub App token`.
- 1 additional untracked P1 cluster hits `Dev Practices / Well-Architected` 5 times at `Process Safe Outputs` but was deprioritized because only two remediation issues may be filed.
- Existing coverage found: 0 matching open issues with the configured title prefix.

Prioritized remediation list

1. `githubnext/gh-aw-cao`: shared target-authority precompute failure across `aw-failures-investigator`, `aw-maintenance-compiler-security`, `aw-maintenance-upgrade`, and `dependabot-release-train-updater` (P1, 19 runs).
2. `githubnext/gh-aw-cao`: `optimization-ai-credit-optimizer` fails at `Generate GitHub App token` (P1, 5 runs).
3. `githubnext/gh-aw-cao`: `software-development-practices-github-well-architected` fails at `Process Safe Outputs` (P1, 5 runs, not filed due to per-run limit).

Snapshot details

- Source: `cao-dashboard-activity`
- Repository scope: allowlist
- Public projects scanned: 7
- Failed runs in snapshot: 1007
- Evidence available for analysis: newest 100 failed runs only (`truncated: true`)
- Cluster counts: P0 0, P1 3, P2 28
- Existing coverage matches: 0

### Control Plane
- Correlation ID: 33944301275-198
- Central repository: githubnext/gh-aw-cao
- Control-plane run: https://github.com/githubnext/gh-aw-cao/actions/runs/33944301275

> Generated by [SelfCare / Open Source Failures](https://github.com/githubnext/gh-aw-cao/actions/runs/33944481045) · pi · gpt54 · 22.9 AIC · ⌖ 8.54 AIC · ⊞ 8.3K · [◷](https://github.com/search?q=repo%3Agithubnext%2Fgh-aw-cao+is%3Aissue+%22gh-aw-workflow-call-id%3A+githubnext%2Fgh-aw-cao%2Fself-care-open-source-failures%22&type=issues)
> - [x] expires on Sep 19, 2026, 4:30 AM UTC

Start with the listed workflows: aw-failures-investigator, aw-maintenance-compiler-security, aw-maintenance-upgrade, dependabot-release-train-updater, and optimization-ai-credit-optimizer. Review the control-plane run and representative fresh runs, then confirm those workflows complete successfully without reproducing the reported target-authority or GitHub App token failure signatures.

Written by the indexing model from the issue text.