fix(redirects): add no-slash redirect for /agent-platform/capabilities/computer-use - #485

Summary

https://docs.warp.dev/agent-platform/capabilities/computer-use (no trailing slash) — the URL published in a blog post — returns 404. Vercel matches redirect source values as exact path strings, so the existing /agent-platform/capabilities/computer-use/ rule (trailing slash) never fires for the no-slash form.

This adds the missing no-slash twin in vercel.json, pointing at the same canonical destination and using the same permanent 308 status as its neighbors:

{
  "source": "/agent-platform/capabilities/computer-use",
  "destination": "/agents/capabilities/computer-use/",
  "statusCode": 308
}

The existing trailing-slash rule is left untouched. Scope is deliberately limited to the reported path; other /agent-platform/capabilities/* entries share the same gap but are out of scope here.

Verification

Live check against this PR's Vercel preview deployment (docs-git-factory-quality-1520-no-slash-comput-cd831c-warpdotdev.vercel.app):

Repo checks

• npm run typecheck — pass (0 errors, 0 warnings).
• npm run build — pass (364 pages built).
• python3 scripts/check_redirects.py (repo's redirect validator, static mode) — 740 broken destinations both before and after this change, i.e. no regression; the new entry's destination /agents/capabilities/computer-use/ resolves and is not among the flagged entries.
• vercel.json parses as valid JSON and the new source is not duplicated anywhere in the redirects array.
• PR CI (Build, link-check, audit) — pass. The three CodeQL Analyze checks are red, but that is a repo-wide default-setup failure unrelated to this change: every CodeQL run since ~16:56 UTC is red, including the run on main and on PRs Restore custom Kapa chat with trigger-based support handoff #466, chore: drafting signal logs #467, docs(skills): improve drafting skills from signal log patterns 2026-08-06 #484, and docs: consolidate the Warp Agent CLI docs into the Agents section #486. GitHub does not allow re-running a default-setup CodeQL run.

Regression test — testing-exempt category: config-only. The change is one declarative redirect entry; a unit test could only assert the literal value back rather than detect a logic defect, and the behavior itself is produced by the Vercel platform at request time. The live preview checks above are the deterministic proof.

Closes QUALITY-1520.

Computer-use video recordings

Visiting production and preview docs URLs: Loading the production no-slash docs URL, then the preview deployment's no-slash URL and the page it resolves to, then the preview trailing-slash URL, keeping the address bar visible throughout.

Originating thread: https://warpdev.slack.com/archives/C0BDQDW8V5E/p1786036844862749