Determinism Audit

Define what must repeat, expose the first divergence, and distinguish a verified cause from a lead.

1. Inspect the project and define the contract

Identify the engine or runtime, build and test commands, simulation loop, RNG ownership, concurrency model, persistence, networking, and replay format. Determine whether the request is an audit or includes authorization to change code.

Define the boundary before testing:

• the build and version;
• initial state and seed;
• ordered inputs and simulation ticks;
• same-machine, same-platform, or cross-platform requirement;
• whether replay, lockstep, or cross-version compatibility is required.