/qstack-loop-no-nonsense

Treat the plan as the contract. Execute it completely, but never silently change what it requires.

Resolve the plan

1. Use the supplied plan path when present.
2. Otherwise use a plan clearly referenced in the conversation.
3. Otherwise inspect qstack/compound_engineering/plans/*/plan.html, plus legacy compound-engineering/plans/*/plan.html and plan.md files. Use the only plausible candidate; ask if more than one is plausible or none exists. Never select .template/.

Resolve the repository root, read its instruction files, then read the whole plan. Do not edit the plan: it is frozen once execution begins.