spec
Create, amend, or backprop bugs into SPEC.md at repo root. Sole mutator of the project spec. Triggers when the user asks to write a spec, start a new spec, distill a spec from existing code, add invariants, amend sections (§G, §C, §I, §V, §T, §B), or record a bug via backprop. Common phrasings: "write the spec for...", "new spec", "bug: ...", "amend §V.3", "distill spec from code", "spec this idea". Reads and follows FORMAT.md for the caveman encoding rules and pipe-table shape of §T and §B.
Install
With your agent
Install OMGSkills skill "juliusbrussee/cavekit:spec" into this agent's normal skills directory: call the OMGSkills MCP get_install_plan tool for your agent and run the script it returns (it installs only the pinned commit and verifies SKILL.md), and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.
Manual command
git clone https://github.com/JuliusBrussee/cavekit /tmp/cavekit && ln -s /tmp/cavekit/skills/spec ~/.claude/skills/specFrom README
spec — spec mutator Read FORMAT.md at repo root if not already loaded. Caveman skill applies to all writes here. DISPATCH Inspect user request and project state: No SPEC.md at repo root AND args describe idea → NEW No SPEC.md AND from-code in args → DISTILL SPEC.md exists AND args start bug: → BACKPROP SPEC.md exists AND args start amend → AMEND SPEC.md exists, no args → ask user which mode INPUTS — spec is the sole mutator The other verbs produce material; spec writes it. Ingest their handoff blocks into the right section, show a diff, write on OK: grill → sharpened §G + §C research → §R rows (add the §R section if absent) review → drafted §V lines + the risk verdict deepen → §I/§V/§T amendments ⊥ rewrite a section the handoff did not name. Sectioned ownership (see FORMAT.md). NEW — idea → spec Input: user idea. If it arrived fuzzy, prefer running grill first. Steps: Extract goal (1 line, caveman). → §G. List constraints user stated or implied. → §C.