[harlan-zw]

🔗 Linked issue

Found during the SEO recovery check-in.

❓ Type of change

• 📖 Documentation
• 🐞 Bug fix
• 👌 Enhancement
• ✨ New feature
• 🧹 Chore
• ⚠️ Breaking change

📚 Description

Valid Skill reference links ending in .md return 404 because Markdown negotiation claims them before the file guard runs.
Run that guard in Nitro's request hook so file links reach the file viewer.
Ordinary Skill pages keep their Markdown representation.

🤖 AI disclosure: Harlan Agent Kit modified this description. My AI open-source policy.

[harlan-zw]

🤖 Harlan Agent Kit Agent assessment of head d8e7ac4.

The Service reported ReserveReached with this head's Review queued. Its exact-head stop returned Stopped before independent review.

The independent review found no defects. Confidence: 95/100. Production behavior awaits deployment smoke checks.
The review covered Nitro request ordering, the module's cached negotiation decision, route boundaries, and the uploaded diagram.

Manual proof outside CI: the built local Worker served all three existing deep-link cases as HTML.
Those cases covered reference.md, LICENSE.txt, and scripts/check_bounding_boxes.py.
Additional HTTP requests returned 200 HTML for the ordinary Skill page and 200 Markdown for its .md representation.
Local D1 contained only public test data for these requests. These checks did not write production D1.

CI passed for this exact head, including build, tests, typecheck, lint, and the harness and declared-Skills checks.
The local full unit suite also passed all 4,041 tests.

The independent assessment leaves the Service Review stopped. Harlan retains the merge decision.