Claimproof

claimproof

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**claimproof stops an AI coding agent from ending its turn saying "done" until it shows proof a machine can check.**

Agents report work as finished when it isn't — not by lying, but because a fluent summary and a correct one feel identical from the inside, and nothing in the loop is checking. This runs at the runtime layer, before the turn can end.

**Two packages live here.** `claimproof` is the library above. [**`deadcanary`**](https://github.com/Cshearer210/claimproof/blob/main/packages/deadcanary) asks the same question of a dbt project's data tests — [*"all 20 tests pass"* is a claim too](#the-same-question-asked-of-your-data--deadcanary), and it reads identically whether the data is healthy or the tests cannot fail. It breaks the data on purpose to find out which. `pip install claimproof[dbt]` gets both.

pip install claimproof
python -m claimproof.demo


*The first four acts of `python -m claimproof.demo`, drawn from the demo's real output. `tools/render_demo_svg.py` regenerates this image from a live run and refuses to render if the output drifts — the same standard the library holds everyone else to.*

**Renamed from `agentattest` (2026-08-07).** PyPI refuses names a hyphen away from an existing project, and `agent-attest` — an unrelated agent evaluator