ToolReplay does hash-chain sealed, deterministically replayable audit logs with zero dependencies.

Matthew0822/ToolReplay, created September 14 and at 171 stars two days later, audits agent tool-call transcripts through hash-chain sealing, deterministic replay and scope-overreach checks. The dependency-free constraint is the design decision: an audit layer that pulls in a supply chain undercuts the thing it's auditing. Same problem space as the Emergence World stress-test paper, approached from operations rather than research.