# Eloquent — the manual (llms.txt)

> Every tool this deployable serves — 4 tools across 4 domains. Tool names are globally unique; signature = sha256(name, effect, input/output schema).

## surfaces
Machine-discovery surfaces the router serves in front of every backend.

- `health` (read) — GET /health · auth: none  [/help/surfaces/health]
- `robots_txt` (read) — GET /robots.txt · auth: none  [/help/surfaces/robots_txt]
- `surface_catalog` (read) — GET /api/surfaces · auth: none  [/help/surfaces/surface_catalog]

## router
The single HTTP front door — authentication, OAuth/SIWE, and the internal gate.

- `router_explain` (read) — GET /_router/explain?method&path · auth: none  [/help/router/router_explain]