Context is the product
Your CLAUDE.md should describe the commands, architecture, boundaries, and proof required to finish work. Keep it short enough to stay true.
CLAUDE.md
## Commands npm run typecheck npm run test ## Boundaries - Preserve public APIs - Never edit generated files ## Definition of done - Types pass - Critical path verified
The plan → build → verify loop
Start by mapping what exists. Make the smallest coherent plan. Build within explicit boundaries. Then verify the behavior, not merely the diff.
MAP→PLAN→BUILD→VERIFY
Leave a clean handoff
A useful completion note says what changed, what was verified, and what remains uncertain. It should help the next person move without replaying the entire session.
Stay close to the tool.
Join the first readers of the Claude Code field manual.