Summary
Lives at the root of your repo as SPEC.md and becomes the single source of truth for what you're building. It writes specs in a terse "caveman" format (defined in FORMAT.md) with sections for goals, constraints, interfaces, invariants, tasks, and bugs. The interesting bit is backprop: when you hit a bug, it traces the cause, adds a row to the bug table, and proposes a new invariant to catch it next time. Also distills specs from existing code if you inherit a project with no documentation. It's opinionated about monotonic numbering and pipe table layouts, which either saves you from bikeshedding or feels rigid depending on your taste. No auto-build, you invoke that yourself.
Install to Claude Code
npx -y skills add juliusbrussee/cavekit --skill spec --agent claude-codeInstalls into .claude/skills of the current project.
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
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SKILL.md
Select a file.
Featured
Keeps your Mac awake while Claude Code, Codex or Cursor works. Lets it sleep when they are done.
Try free for 7 days →Connect your Claude agent to live crypto prices and trading routes via 1inch
Get the MCP →Block distracting apps from your iPhone permanently without a 3rd party app. Free and open source.
Block now (100% free) →belt cli automatically finds the best tools and skills for your agent. image, video, music, tts...
one prompt install →Free an open-source skills that make AI coding agents easier to understand, verify, and control.
Download for free →
