fathom-onboard

Wire a repo end-to-end into fathom's coding-agent story: build/install the binary, stand up (or point at) a serve-http daemon, ingest the repo, register the MCP surface with Claude Code and/or Codex, wire the Claude Code hook stack, scaffold .fathom/ (config.toml, layers, rules), and confirm the whole loop is live with a verification checklist. Use when asked to "set up fathom", "wire fathom into this repo", "onboard fathom", or "get the fathom MCP tools working here".