GEOMETER — ILLUSTRATIVE ASSESSMENT PREVIEW

Not issued. Unsigned. Educational fixture only.

Subject: synthetic-refund / fixture-v1
Constraint: at most one refund effect per logical intent.
Method: one deterministic lost-reply fault; two separately reset branches.

Problem: the first synthetic refund commits before its reply is lost.
A blind retry produces a second effect. Holding the uncertain retry and
looking up the original intent retains one effect in this fixture.

Integrity: unsigned explanation; not authenticated by evidence-pack verification.
Applicability: teaching example only. No real project or provider is certified.
Exclusions: live providers, concurrency, real agents and production frequency.
Reproduction: inspect and run the dependency-free lost-ack.mjs script with Node.

Integrity is distinct from truth, complete observation and current applicability.