@synapse/geo-lint

24-rule GEO (Generative Engine Optimization) linter — scores how well a site or project is set up for AI coding agents to discover, understand, and recommend it. Returns a 0–100 Growth Score and a grade A–F.

import { lint, applyFixes } from "@synapse/geo-lint";

const report = await lint("https://example.com");
console.log(report.score, report.grade);

// or a local project path:
const local = await lint("./my-next-app");
const fixed = await applyFixes("./my-next-app");

See the full 24-rule checklist or fetch synapse://docs/geo-checklist from the MCP server for the live list.

Rule shape

Each rule exports:

{
  id, number, title, description, category, weight, severity, autoFixable,
  check(target): Promise<{ passed, evidence?, suggestion? }>,
  fix?(target):  Promise<{ applied, filesWritten[] }>,
}

lint() runs all rules in parallel via Promise.all.

URL vs project targets

• URL: fetches the page + robots.txt, sitemap.xml, llms.txt, llms-full.txt, and /.well-known/agent-answer.json once and reuses them across rules.
• Project path: detects framework (Next / Astro / Vite / Remix / SvelteKit / Nuxt / plain HTML), finds the build output, and runs rules against the static output + public/ files.