impl — Autonomous Implementation Engine (the "harnish" engine)

Do not judge. Follow the rules. When lost, return to harnish-current-work.json. When stuck, escalate. No invention.

Skill Chain

drafti-architect (or drafti-feature) → impl → galmuri:ralphi (sibling plugin)

Skill	Standalone Call	Prerequisites
drafti-architect	Yes	None (only needs a technical problem)
drafti-feature	Yes	Requires a planning document
impl	Yes	docs/prd-*.md or existing harnish-current-work.json
galmuri:ralphi	Yes (external)	Specify target files/directories to verify

When harnish starts without a PRD: "No PRD found. Please create one first with /drafti-architect or /drafti-feature."