Harness Review

Review one immutable target through provider-neutral routing. A reviewer reports findings and evidence; the parent decides whether the fixed target is accepted.

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

Fix and validate the target