ratemyharnesslisted

# RateMyHarness ## Runtime boundary - **Model** proposes the next message, tool call, or action. - **Loop** invokes the model, dispatches tools, returns results, and decides whether to continue. - **Harness** enforces runtime behavior around the loop: context, state, memory, tools, permissions, approvals, budgets, cancellation, tracing, evaluation, and recovery. - **Skill** supplies instructions and resources inside a harness; it cannot grant authority or enforce a sandbox. An isolated loop is reviewable, but label its verdict component-limited rather than presenting it as a complete harness audit. ## Deterministic runtime invariants Use these zero-tolerance invariants as the stable center of every route: | Invariant | Required runtime behavior | |---|---| | Authority | Enforce policy outside model-controlled text and bind approval to the principal, action, arguments, and validity window. | | Correlation | Bind every model step, tool call, attempt, result, checkpoint, and terminal event to the correct run; reject or reconcile late and duplicate results. | | Isolation | Partition session and tenant state, enforce provenance and retention boundaries, and prevent cross-run contamination. | | Idempotency | Give non-idempotent effects stable end-to-end keys, durable state, and reconciliation so retries and resumes cannot silently duplicate them. | | Termination | Enforce independent step, tool-call, wall-clock, token, and cost limits, and propagate cancellation through activ