Route a claim through a policy, not through a threshold

Mon, 01 Jan 0001 00:00:00 +0000

A policy that answers “allow or not” is a threshold with extra steps. The chapter’s engine answers a different question: given a candidate and what has already happened, what is the commitment, what is the next action, which rule matched, and which rules were suppressed but still contributed their reasons and obligations. The example is the engine itself, exercised over six states.

Run it

The engine is the chapter’s own reference implementation, reproduced below exactly. Save it as policy_engine.py, save the driver as demo.py beside it, and run the driver with Python 3.13 or later. The standard library only: no model, no network, no service, no external calls.

hallucination-from-first-principles examples on Programmer.ie: Modern AI programming

Route a claim through a policy, not through a threshold

Run it