feat: expose llms.txt

[araujogui]

Expose the llms.txt file generated by doc-kit

[ovflowd]

I don't think our Makefile on upstream Node.js is using the llms.txt generator?

[flakey5]

lgtm, I wanna wait on nodejs/node#62027 to get merged first though in case there's any blockers/whatever

[cursor]

PR Summary

Low Risk
Small, parallel change to existing static symlink and R2 routing; no auth or sensitive data paths.

Overview
Exposes doc-kit’s llms.txt at /llms.txt, mirroring how /node-config-schema.json is served from the latest Node release docs in R2.

Routing: HEAD/GET on /llms.txt go through r2Middleware, and getR2Path maps that path to the llms.txt object key (resolved via static file symlinks).

Release symlink: fileSymlinks.json gains an llms.txt entry, and addStaticFileSymlinksToCache treats it like the config schema—skipped during directory-cache injection, then rewritten each release to nodejs/release/<latest>/docs/llms.txt.

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[Copilot]

Pull request overview

Exposes the llms.txt file (generated by doc-kit) via the Cloudflare Worker by routing requests to R2 and adding a versioned symlink that tracks the latest Node release.

Changes:

• Adds /llms.txt GET/HEAD routes handled by R2Middleware.
• Maps /llms.txt to an R2 object via fileSymlinks.json and getR2Path() handling.
• Updates the symlink-cache generation script to treat llms.txt like other root-level dynamic symlinks.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
src/routes/index.ts	Adds GET/HEAD routes for /llms.txt so the worker serves it from R2.
src/middleware/r2Middleware.ts	Extends R2 path mapping logic to allow /llms.txt to resolve to the symlink key.
src/constants/fileSymlinks.json	Adds a root symlink entry for llms.txt pointing at the latest release docs path.
scripts/utils/addSymlinksToDirectoryCache.mjs	Ensures llms.txt is treated as a dynamic root-level file symlink and rewritten to the latest release during cache generation.

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[cursor]

Cursor Bugbot has reviewed your changes using default effort and found 1 potential issue.

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