mythos

Structured epistemology prompt scaffold for Opus 4.7 inspired by the Anthropic Project Glasswing methodology (Claude Mythos Preview, 2026-04-07). Falsification-first, calibrated Bayesian confidence, ACH matrix (Heuer), Pearl causal ladder, source independence, minimum viable proof, autonomous mode. Does not copy Mythos performance — it applies Mythos's investigative posture to Opus 4.7. No hedging, always evidence. Always Opus 4.7 (or the 1M variant for large-scope).