confidence-check

Pre-implementation confidence assessment to prevent wrong-direction execution. Automatically invoked for complexity score ≥15. Performs 5 weighted checks (no duplicate implementations 25%, MetaSaver pattern compliance 25%, architecture verified 20%, similar implementations found 15%, requirements clear 15%). Requires ≥90% confidence to proceed, 70-89% triggers clarification, <70% stops execution. ROI of 25-250x token savings by catching misaligned work early. Use when complexity score ≥15 to validate implementation direction before spawning agents.