/spec
Create, amend, or backprop bug into SPEC.md. Sole mutator of spec.
> /plugin marketplace add JuliusBrussee/cavekit > /plugin install ck@cavekit-marketplace
How it fires
How this command gets triggered: by you, by Claude, or both.
- Fires itselfClaude auto-loads it when your prompt matches the work.
- You can call itInvoke it directly when you want it.
- Slash command
/spec
Context preview
What this command does when you run it.
Create, amend, or backprop bug into SPEC.md. Sole mutator of spec.
Command definition
spec.mddescription: Create, amend, or backprop bug into SPEC.md. Sole mutator of spec. argument-hint: [bug: <description> | amend <§X.n> | from-code | <idea>]
Invoke the **spec** skill (`skills/spec/SKILL.md`). Treat `$ARGUMENTS` as the mode: an idea → NEW, `from-code` → DISTILL, `bug: <cause>` → BACKPROP, `amend <§X.n>` → targeted edit. spec is the sole mutator — it also writes the handoff blocks that grill (§G/§C), research (§R), review (§V), and deepen (§I/§V/§T) produce. Caveman encoding per FORMAT.md; sectioned ownership; show a diff, write on OK.
A Claude Code plugin that turns natural language into blueprints, blueprints into parallel build plans, and build plans into working software with automated iteration, validation, and cross-model peer review.
Other commands on ck.
- /build
Plan-then-execute against SPEC.md. Native Claude Code loop, no sub-agents.
Open command - /check
Drift detector. Diff SPEC.md against code. Read-only, zero writes.
Open command - /deepen
Spare-budget design pass. Make one shallow module deep — smaller interface, behavior held, tests green before & after.
Open command - /grill
Sharpen a fuzzy idea into §G/§C before spec. Calibrated interrogation, one question at a time.
Open command - /research
Gather external knowledge into §R so build grounds in facts, not hallucinations. Every finding cites a source.
Open command - /review
Adversarial senior review of the spec before build. Refute, don't rubber-stamp. Ends in a go/no-go gate.
Open command

