Hallucination Prevention Checklist

Exactly one project manifest is selected and valid.
Requirement, architecture, quality profile, and relevant generated artifacts were read.
Every product behavior, entity, role, endpoint, screen, and validation rule cites a source ID.
No shared CASAN file contains project-specific assumptions.
No dependency, path, command, source root, or deployment target was invented.
Build/test commands equal manifest argv arrays and matched verification rules ran.
Missing or contradictory evidence produces REJECTED/blocked, never an inferred answer.