llms.txt for Remix

# Remix static file approach
#
# Place your file at: public/llms.txt
# Remix (and the underlying Node/Cloudflare/Vercel adapter)
# serves everything in public/ at the root of your site.
#
# Project structure:
# your-remix-app/
# ├── public/
# │   └── llms.txt   ← add this
# ├── app/
# └── remix.config.js (or vite.config.ts)

// app/routes/llms[.]txt.ts
// Remix resource route — the [.] escapes the dot in the filename
// This file is served at exactly /llms.txt
import type { LoaderFunctionArgs } from '@remix-run/node';

export async function loader({ request }: LoaderFunctionArgs) {
  const content = `# Your Site

> One-sentence description of what your site or product does.

## Documentation

- [Getting Started](https://yoursite.com/docs/start): Install and configure.
- [API Reference](https://yoursite.com/docs/api): Full endpoint catalog.

## Product

- [Overview](https://yoursite.com/product): Features and capabilities.
- [Pricing](https://yoursite.com/pricing): Plans and billing.

## Optional

- [Changelog](https://yoursite.com/changelog): Release history.
- [GitHub](https://github.com/your-org/your-repo): Source code.
`;

  return new Response(content, {
    status: 200,
    headers: {
      'Content-Type': 'text/plain; charset=utf-8',
      'Cache-Control': 'public, max-age=3600, stale-while-revalidate=86400',
    },
  });
}

// app/routes/llms[.]txt.ts
// Generate from your content / MDX files
import type { LoaderFunctionArgs } from '@remix-run/node';
import { getAllDocs } from '~/models/docs.server';

export async function loader({ request }: LoaderFunctionArgs) {
  // Fetch your documentation index from a DB or file system
  const docs = await getAllDocs();

  const links = docs
    .map((doc) => `- [${doc.title}](https://yoursite.com/docs/${doc.slug}/): ${doc.summary}`)
    .join('\n');

  const body = [
    '# Your Site',
    '',
    '> One-sentence summary of your project.',
    '',
    '## Documentation',
    '',
    links,
  ].join('\n');

  return new Response(body, {
    headers: {
      'Content-Type': 'text/plain; charset=utf-8',
      'Cache-Control': 'public, max-age=3600, stale-while-revalidate=86400',
    },
  });
}

import { vitePlugin as remix } from '@remix-run/dev';
import { defineConfig } from 'vite';
import { writeFileSync } from 'node:fs';
import { resolve } from 'node:path';

// Simple Vite plugin to generate llms.txt at build time
function llmsTxtPlugin() {
  return {
    name: 'generate-llms-txt',
    buildStart() {
      const content = `# Your Site\n\n> Summary.\n\n## Documentation\n\n- [Docs](https://yoursite.com/docs): Guide.\n`;
      writeFileSync(resolve(__dirname, 'public/llms.txt'), content, 'utf-8');
    },
  };
}

export default defineConfig({
  plugins: [remix(), llmsTxtPlugin()],
});

curl -I https://yoursite.com/llms.txt
# Expected:
# HTTP/2 200
# content-type: text/plain; charset=utf-8

curl https://yoursite.com/llms.txt | head -5