Reacher

In May an attacker pulled about $150,000 out of an on-chain agent's wallet. No stolen key, no contract bug. One agent trusted another's output, and that was enough. The behavior-layer failure paths an audit doesn't surface, and how to tell which ones your agent can reach.

Independent epistemic validation methodology applied to Olas DeFAI trader-class agents under ERC-8004. R/A/U state classification, 8 hypothesis cards, 2 UNRECOVERABLE paths flagged, aggregate score 64/100. Section 6 positions the methodology as one layer in a 5-primitive stack on the Validation Registry, complementary to ACTA (privacy) and WCA (provenance). Built on Romanchuk-Bondar 2026 theoretical foundation with formal bibliographic-only citation.