How to add llms.txt to VitePress

VitePress powers a lot of dev-tool documentation — and docs are the most natural home for llms.txt, since your sidebar is already a hand-picked index of the pages that matter. As a static-site generator, VitePress gives you full control of the output root.

Method A — Public directory (simplest)

Drop the file at .vitepress/public/llms.txt (or the public/ folder if you set srcDir). VitePress copies it to the build root, so after vitepress build it's live at /llms.txt with the right text/plain type. Add llms-full.txt the same way.

Method B — Generate from your sidebar (buildEnd hook)

Keep the file in sync with your docs by writing it in the buildEnd hook of your config, straight into the output directory:

// .vitepress/config.ts
import { defineConfig } from "vitepress";
import { writeFileSync } from "node:fs";
import { resolve } from "node:path";

export default defineConfig({
  title: "My Docs",
  description: "Docs for My Tool",
  buildEnd(siteConfig) {
    const base = "https://yoursite.com";
    const body = `# ${siteConfig.site.title}

> ${siteConfig.site.description}

## Docs
- [Getting started](${base}/guide/): install and first run
- [Configuration](${base}/config/): every option
- [API](${base}/api/): reference
`;
    writeFileSync(resolve(siteConfig.outDir, "llms.txt"), body);
  },
});

Build the link list from your themeConfig.sidebar so the index always reflects your real navigation.

What to watch for

• base path — a non-root base pushes public files under it. Serve at the root or redirect /llms.txt at your host.
• Curate, don't dump — link your top sections, not every markdown file. llms.txt is an index, not a sitemap.
• Don't block AI bots — check that your host (GitHub Pages, Netlify, Cloudflare Pages) and robots.txt let GPTBot / ClaudeBot through.

Related: llms.txt for Docusaurus · llms.txt for Next.js · How to create llms.txt · vs sitemap.xml