# cavekit

A frozen but still-working, compressed spec-driven-development plugin for Claude Code that runs one durable spec file through a grill, spec, research, review and build loop with no sub-agents.

cavekit is a spec-driven development plugin for Claude Code built around one durable `SPEC.md` file at the repository root, which survives context resets and acts as the agent's long-term memory, plus a small set of slash commands rather than a swarm of sub-agents. `/ck:spec` creates or amends the spec and is its sole mutator, `/ck:build` plans and executes against it, naming which test proves each invariant and recording a failure back into the spec, and `/ck:check` is a read-only drift report against the spec's invariants.

Additional commands are used only when a change earns the ceremony: `/ck:grill` turns a fuzzy idea into a sharp goal and constraints before writing a spec, `/ck:research` gathers cited external knowledge, `/ck:review` is an adversarial pre-build review ending in a go/no-go gate, and `/ck:deepen` is a scoped design pass on one module.

The project is frozen as of August 2026; active development continues in a successor project. It installs with `npx skills add` and is released under the MIT license.

Website: https://caveman.so/