플러그인

Signed chain-of-custody for sessions: every watched tool result appends a hash-chained, ed25519-signed record, with commits bound into the chain — tampering with any line or truncating the tail fails deterministic replay verification.

Training attestation — reproducible, attributable, auditable off-site standardized training for asset pricing. Hard-gates four failure modes (half-refresh, hash mismatch, unknown-read-as-pass, master pollution). Ships one skill.