Coral turns any git repo into a queryable Karpathy-style LLM wiki (.wiki/), preserves a bi-temporal history of the codebase + the docs about the codebase, and exposes it to Claude Code via an MCP server so you can ask architecture questions without re-reading the whole codebase. Five auto-invoked skills (bootstrap, query, onboard, ui, doctor) plus two deterministic slash commands cover the entire lifecycle: generate the wiki with cost-confirmed bootstrap, query it conversationally, onboard new contributors, browse a force- directed graph WebUI, or diagnose environment issues. A SessionStart hook reports repo state to Claude on every session open so the right next action is suggested without the user needing to know skill names. A 4-path provider mini-wizard (Anthropic API key / Gemini / Ollama / claude CLI) onboards users who don't have claude CLI yet. Single-binary distribution (~14 MiB stripped) with Sigstore provenance, cross-platform install (Linux / macOS / Windows), SLSA L3-equivalent attestation on every release, and a 7-week internal audit cycle behind it (docs/audits/ in the repo).