Agent Debug CI

Goal

Explain the exact nightly failure and, when repository code or configuration is responsible, deliver a validated PR that fixes its root cause. Do not create a speculative PR for transient infrastructure, external-service, or already-fixed failures.

Prepare the Run

1. Read the root AGENTS.md and run git status --short --branch. Preserve existing work. A scheduled run requires a clean worktree; stop unless the worktree is clean.
2. Fetch origin, resolve the current default branch, and base the work on it. Never push directly to the default branch.
3. Verify GitHub access with gh auth status before relying on GitHub metadata or preparing a pull request.

Investigate the Exact Run