## Computer Science > Artificial Intelligence ## Title:From Proposal to Verified Effect: Praxa, an Evidence-Bound Harness for Governed AI Agent Execution > Abstract:Large-language-model agents can propose and execute actions, but proposal, authority, dispatch, verified external effect, and serving promotion are different claims. We present Praxa, an agent harness that represents these states explicitly through deterministic admission, brokered execution, external read-back, reconciliation, and reviewed promotion. We report four evidence lanes. First, an author-run repository-local audit at a…