mill

Use this skill whenever you are writing or reviewing a mill-based orchestration program (including pi-mill extension flows).

Core rules

• Keep systemPrompt (WHO/how) separate from prompt (WHAT/task).

• Use await for sequential steps and Promise.all for independent parallel work.

• Always pass an explicit model in provider/model-id format.

• Check exitCode , stopReason , and errorMessage before trusting results.

• Use mill.observe.log(...) for progress and diagnostics.

Available patterns

• General orchestration patterns: ./references/patterns.md

• Iterative Ralph Loop pattern: ./references/ralph-loop.md

• Worktree-isolated parallel development: ./references/worktree.md

Prefer these patterns before inventing new orchestration scaffolding.