docs · bassclef, an add-on for Claude Code

Bring engineering discipline to Claude Code.

New to bassclef? It's an add-on for Claude Code — read the full pitch →

bassclef understands what you're building, applies opinionated defaults you can override, and carries context from idea to PR.

v1.6.61 npm installno API keys

Start here — three skills to run first

Sketch a UI, turn one sketch into a plan, ship the plan. The rest sits in the sidebar for later.

Sketch a UI idea from a paragraph. Get 3 clickable mocks.

Turn one mock into a buildable plan — spec, stories, migration.

Ship the plan. Reviewer signs off. PR opens.