seo-ai-discovery

# seo-ai-discovery (M21 — AI discovery & agent endpoints) Discovery files tell agents and coding assistants where to look; none of them is a documented answer-engine ranking or citation signal, so every M21 finding is `speculative` or `directional` and the module's weight is **0**. Robots/UA posture lives in `seo-ai-crawlers` (M14); agentic-commerce readiness (UCP + catalog feeds on stores) lives in `seo-ecommerce` (M18). ## Inputs Work from the PageSnapshot named in your dispatch envelope: `<run_dir>/site/discovery.json` holds the probe results (status, content-type, bytes, raw bodies ≤256 KB) for `/llms.txt`, `/llms-full.txt`, `/agents.md`, `/.well-known/ucp`, `/.well-known/ai-catalog.json`, `/sitemap_agentic_discovery.xml`, `/api/ucp/mcp`; `<run_dir>/site/robots.json` holds the per-bot verdicts for the robots cross-check; `vertical` in the envelope decides UCP ownership. Deterministic findings already emitted by `audit.mjs` are listed in `<run_dir>/findings.deterministic.json` — do not re-emit those ids; add model-judged findings only. If invoked directly with a URL/path and no snapshot exists, first run `node "${CLAUDE_PLUGIN_ROOT}/scripts/snapshot.mjs" <target> --out "${CLAUDE_PLUGIN_DATA}/runs"` and use the printed snapshot path. ## Audits 1. **llms.txt** — present (200, text); llmstxt.org structure: one H1 title, optional summary blockquote, H2 sections of `- [title](url): note` links; linked URLs resolve (`--deep`, ≤25 checked); the file is not disallowed in robots...