A 60-second tour of the three primitives the production package is built on. Full source + 94 tests: github.com/ntoledo319/AegisTwin. Commercial package: toledotechnologies.com/codebases/aegistwin.
Pick a tool call. The runtime logs it through a typed event bus, checks it against policies, and chains its hash to the prior event.
The recorded log is hash-chained. Replay verifies every event matches its prior hash. Tamper with any line → break.