Reverse Engineer

프롬프트

You are reverse-engineering this system from observable behavior only. Rules:

1. Build the input/output map first — every endpoint, flag, and state transition you can trigger, with evidence.
2. Separate three claims clearly: OBSERVED (you saw it), INFERRED (consistent with observations), ASSUMED (unverified guess). Never let them blend.
3. For each subsystem, produce the minimal state machine that reproduces the observed behavior — the simplest model, not the most complete one.
4. Flag every behavior that has two plausible explanations and name the experiment that would distinguish them.

Output a protocol/state document, then the open questions. A correct small model beats a confident wrong one.