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

The bounded seven-day snapshot ending 2026-09-05T11:59:05.013Z captured 1,568 failed runs across 7 public projects, but only the newest 100 failed runs were available for clustering. Within that bounded sample, I found 30 defect clusters: 7 P1 recurring actionable clusters and 23 P2 clusters with isolated or insufficient evidence. No open issue with the `[self-care:open-source-failures]` prefix was present in `githubnext/gh-aw-cao`, so I filed the two highest-return remediation issues for recurring live-mode target-authority failures and recurring safe-output processing failures.

**Action:** CAO maintainers should triage the two new remediation issues first and rerun one representative workflow from each cluster; accept when pre-activation target-authority failures are gone and at least one affected workflow completes `Process Safe Outputs` successfully.

Critical findings:
- Snapshot timestamp: `2026-09-05T11:59:05.013Z`
- Evidence window: 168 hours (7 days)
- Public projects scanned: 7
- Failed runs in snapshot metadata: 1,568
- Snapshot truncation: only the newest 100 failed runs were available
- Cluster counts in bounded sample: 0 P0, 7 P1, 23 P2
- Existing coverage found in `githubnext/gh-aw-cao` with `[self-care:open-source-failures]` prefix: 0 open issues
- Highest-priority untracked clusters filed:
1. Recurring live-mode target-authority failures in `githubnext/gh-aw-cao` maintenance workflows
2. Recurring `Process Safe Outputs` failures in `githubnext/gh-aw-cao` workflows

Prioritized remediation list

1. **P1 — Recurring live-mode target-authority failures**
Repository: `githubnext/gh-aw-cao`
Workflows: `dependabot-release-train-updater`, `aw-maintenance-compiler-security`, `aw-maintenance-upgrade`, `aw-failures-investigator`
Signature: `Target authority missing: add .github/workflows/cao.json to the target default branch for live mode`
Run count in bounded sample: 15
Representative run: https://github.com/githubnext/gh-aw-cao/actions/runs/33963096379
Cause confidence: high

2. **P1 — Recurring safe-output processing failures**
Repository: `githubnext/gh-aw-cao`
Workflows: `self-care-data-acquisition-audit`, `software-development-practices-github-well-architected`, `self-care-dashboard-performance`, `pr-sous-chef`
Signature: `Process Safe Outputs`
Run count in bounded sample: 11
Representative run: https://github.com/githubnext/gh-aw-cao/actions/runs/33963457581
Cause confidence: medium

3. **P1 — Recurring GitHub App token generation failures**
Repository: `githubnext/gh-aw-cao`
Workflow: `optimization-ai-credit-optimizer`
Signature: `Generate GitHub App token`
Run count in bounded sample: 4
Representative run: https://github.com/githubnext/gh-aw-cao/actions/runs/33963112610
Filing decision: not filed because only two remediation issues were permitted and the two clusters above had broader workflow impact.

4. **P1 — Other recurring actionable clusters in bounded evidence**
Repository: `githubnext/gh-aw-cao`
Signatures: additional per-workflow recurrences of the target-authority block already covered above
Filing decision: covered by the live-mode target-authority remediation issue.

Bounded clustering notes

Clustering method applied from the snapshot contract:
- Primary grouping started with repository and workflow path.
- Cluster signatures were derived from the strongest available field in order: `failureMessage`, then `failureStep`, then `failureJob`, then conclusion.
- Conclusion-only failures were kept as separate P2 insufficient-evidence clusters unless their enriched evidence clearly matched an existing signature.
- Cross-workflow merges were only used where the evidence identified the same shared cause.

Examples of lower-confidence P2 clusters left unfiled:
- `design-decision-gate` conclusion-only failures in `githubnext/gh-aw-cao`
- reviewer and gate workflow conclusion-only failures in `github/gh-aw`
- isolated `Execute Codex CLI` failures across several `github/gh-aw` workflows

Because the snapshot is truncated, these counts describe only the bounded newest-100 sample, not the full 1,568-run population.

### Control Plane
- Correlation ID: `33965965540-220`
- Central repository: `githubnext/gh-aw-cao`
- Control plane run URL: `https://github.com/githubnext/gh-aw-cao/actions/runs/33965965540`

> Generated by [SelfCare / Open Source Failures](https://github.com/githubnext/gh-aw-cao/actions/runs/33966125093) · pi · gpt54 · 24.7 AIC · ⌖ 8.8 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, 12:33 PM UTC

Start with the representative workflow runs 33963096379 and 33963457581, then inspect the listed maintenance and affected workflows in githubnext/gh-aw-cao. Compare the target-authority and Process Safe Outputs failure signatures, rerun one representative workflow from each cluster, and consider the work complete when the authority failures are gone and one affected workflow completes Process Safe Outputs successfully.

Written by the indexing model from the issue text.