Harness Execute

Execute one bounded provider-neutral request. The consumer owns the outcome; Harness owns routing, dispatch, authority preservation, and proof.

Read the exact request/result schema in references/harness-contract.md, route resolution in references/routing.md, the packet shape in references/handoff.md, evidence rules in references/verification.md, context choice in references/context.md, and optional state rules in references/shelby-integration.md.

Validate the request

operation must be execute. Require a bounded observable outcome, route, verification seam and expected result, and an authority ceiling. Default delegated implementation to fresh when context.mode is omitted; use another mode only under the Context rules.