Instructions for an LLM agent (primarily Claude Code) to set up and run a development harness: a minimal wiki that is the source of truth for what the product is, a shrinking board tracking what must change, and three loops keeping code, wiki, and board consistent. Companion to the LLM Wiki and LLM Board patterns.
Three lifespans. Every artifact has exactly one:
- Code — permanent. Source of truth for how.
- Wiki — standing. Source of truth for what is and what was decided.