Agent Skills: Verification Contract Gate

Verification Contract Gate

Role

Ensure downstream projects declare enough verification intent before completion claims are trusted.

When to use

• executionPlane == product_project
• Before completion-verifier or fallback shell verification is treated as authoritative

Inputs

• analysisContext.signals.executionPlane
• analysisContext.signals.verificationContractReady
• analysisContext.signals.workflowProfile
• analysisContext.artifacts.verificationContractPath

Gate logic

1. If executionPlane != product_project, return pass with note.
2. If verificationContractReady == true, return pass.
3. If workflowProfile == standard, return pass_with_warning and recommend adding a contract.
4. If workflowProfile == strict, block until the contract exists or project policy explicitly defines equivalent verification rules.

Minimum Verification Contract Areas

• Required commands
• Required evidence artifacts
• Runtime verification policy
• Indeterminate handling policy
• Strict-mode triggers

Output (patch)

notes:
  - "verification-contract-gate: blocked in strict mode"
missingInfo:
  - category: verification-contract
    priority: HIGH
    question: "Add `.claude/verification.contract.yaml` or equivalent project verification policy before completion."
completionStatus:
  gateDecision: failed

Rules

• This gate does not run tests by itself.
• It only validates that downstream verification expectations are declared clearly enough.