Route Agent of the Day chart PNGs through upload-asset and enforce text-only PR patches

[Copilot]

✨ Enhancement

The Daily Agent of the Day workflow was failing downstream in safe_outputs because the prompt directed the agent to commit a PNG into the PR patch, creating a binary-heavy diff. This change aligns prompt instructions and safe-output policy so chart images are uploaded via upload-asset and PR patches remain text-only.

• What does this improve?

  • Prevents create_pull_request patches from carrying binary image diffs.
  • Moves optional chart handling to the existing upload-asset safe-output path.
  • Enforces text-only PR scope for blog content changes.

• Why is this valuable?

  • Fixes the structural prompt/policy mismatch that caused the workflow’s safe_outputs failure.
  • Adds an explicit guardrail so future runs fail early on invalid file scope rather than during push-side processing.

• Implementation approach:

  • Updated .github/workflows/daily-agent-of-the-day-blog-writer.md:
    • safe-outputs.create-pull-request.allowed-files: docs/** → docs/src/content/docs/**
    • Added hard requirement: create_pull_request must contain only text changes under docs/src/content/docs/**; binary assets must use upload-asset.
    • Rewrote Process §3 to emit chart PNG via a single upload-asset safe-output and use returned URL in markdown (no git add for PNGs).
  • Recompiled .github/workflows/daily-agent-of-the-day-blog-writer.lock.yml to apply the updated prompt and safe-output constraints.

safe-outputs:
  create-pull-request:
    allowed-files:
      - "docs/src/content/docs/**"
  upload-asset:
    max: 3
    allowed-exts: [.png, .jpg, .jpeg, .svg]

[Copilot]

Pull request overview

Updates the “Daily Agent of the Day” blog-writer workflow instructions and compiled lockfile to prevent binary (PNG) files from being included in create_pull_request patches, routing images through the asset-upload safe-output instead.

Changes:

• Narrow create-pull-request allowed-files from docs/** to docs/src/content/docs/**.
• Update the workflow prompt to require text-only PR patches and direct chart PNG handling through the asset upload path.
• Regenerate the compiled .lock.yml to apply updated prompt/safe-output constraints.

Show a summary per file

File	Description
.github/workflows/daily-agent-of-the-day-blog-writer.md	Tightens PR patch scope and updates instructions to avoid committing PNGs to PRs.
.github/workflows/daily-agent-of-the-day-blog-writer.lock.yml	Recompiled workflow lockfile reflecting the updated safe-output config and prompt content.

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• Files reviewed: 2/2 changed files
• Comments generated: 1