[self-care:open-source-failures] Repair recurring safe-output processing failures in Dev Practices / Well-Architected

`Dev Practices / Well-Architected` in `githubnext/gh-aw-cao` hit the same `Process Safe Outputs` failure 5 times in the bounded seven-day snapshot, blocking durable output handling after the main workflow work completes. The evidence supports a recurring post-run safe-output processing defect, but not a narrower root cause from the snapshot alone.

**Action:** Assign this issue to Copilot to inspect the linked runs' safe-output stage and fix the shared post-processing failure path; accept when a rerun of `Dev Practices / Well-Architected` completes without failing in `safe_outputs / Process Safe Outputs`.

Representative failed runs:
- https://github.com/githubnext/gh-aw-cao/actions/runs/33955749432
- https://github.com/githubnext/gh-aw-cao/actions/runs/33955745436
- https://github.com/githubnext/gh-aw-cao/actions/runs/33955735948
- https://github.com/githubnext/gh-aw-cao/actions/runs/33955724766
- https://github.com/githubnext/gh-aw-cao/actions/runs/33955713615

Evidence-supported cause: the workflow repeatedly reaches the `safe_outputs` job and fails at the `Process Safe Outputs` step. The bounded snapshot does not expose the underlying processor error text, so the exact defect still needs run-level inspection.

Proposed bounded fix: inspect the safe-output payload and processing logs for the representative runs, identify the shared failing condition in the safe-output handoff or processor invocation, and add the smallest validation or workflow correction needed so the post-processing step succeeds for this workflow.

Agent prompt
Diagnose the recurring `safe_outputs / Process Safe Outputs` failures in `githubnext/gh-aw-cao` for `.github/workflows/software-development-practices-github-well-architected.lock.yml`. Start from these representative runs: 33955749432, 33955745436, 33955735948, 33955724766, and 33955713615. Find the shared failing condition in the safe-output payload, workflow wiring, or processor path; implement the smallest fix that makes the workflow complete successfully; and confirm by rerunning the workflow or showing why the acceptance check should now pass.

Cluster details

- Repository: `githubnext/gh-aw-cao`
- Workflow path: `.github/workflows/software-development-practices-github-well-architected.lock.yml`
- Workflow name: `Dev Practices / Well-Architected`
- Severity: `P0`
- Run count in snapshot: `5`
- Confidence: `medium`
- Snapshot window: `168` hours ending `2026-09-05T08:59:06.312Z`

### Control Plane
- Correlation ID: `33958090542-212`
- Central repository: `githubnext/gh-aw-cao`
- Control-plane run: https://github.com/githubnext/gh-aw-cao/actions/runs/33958090542

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Start with .github/workflows/software-development-practices-github-well-architected.lock.yml and inspect the safe_outputs / Process Safe Outputs logs and payloads for runs 33955749432, 33955745436, 33955735948, 33955724766, and 33955713615. Identify the shared failing condition in the safe-output handoff or processor invocation, then make the smallest workflow or validation correction. Done means a rerun of Dev Practices / Well-Architected completes without failing at that step.

Written by the indexing model from the issue text.