Run the architecture quality gate

Evaluate machine-readable, verified findings against repository policy. Do not reinterpret or silently rewrite the policy.

Load the contract

Read these files completely:

• ../../resources/references/review-contract.md
• ../../resources/references/quality-gate.md
• ../../resources/references/evidence-provider-contract.md

Operating boundary

Advisory work does not invoke a Gate. Governed and Enforced repositories may
invoke it locally or in CI. A policy's product_mode is descriptive and never
changes the result of an explicit Gate invocation. Ignore informational
governance run manifests: they are trajectory metadata, not Reviews, Evidence
Provider runs, approvals, signatures, or gate inputs.

Procedure

1. Locate the project .architecture/ or portfolio
   .architecture-portfolio/ policy, baseline, risk-acceptance registry, and
   explicitly supplied or newest-by-performed_at verified review. For a
   Greenfield chain, locate the explicitly supplied accepted Decision, its
   approved Brief, and every Plan bound to that Decision.
2. Validate all inputs before evaluating them.
   For Review 1.2, first run:

python3 ../../resources/scripts/architecture_tool.py validate-coverage \
  --project <repo> --review <verified-review.yaml>

3. Run the deterministic gate:

python3 ../../resources/scripts/architecture_tool.py gate \
  --project <repo> \
  [--review <verified-review.yaml> | --decision <greenfield-decision.yaml>] \
  [--base-commit <ancestor>] \
  [--stage contract|finding|change|release|all] \
  [--json] [--sarif-output <results.sarif>]

Use --portfolio <portfolio-root> for portfolio reviews.
Use --decision only for the Brief → Greenfield Decision → Plan path; it does
not synthesize a Review or Findings.

Resolve the script path from this Skill's directory.

4. Report contract failures, missing required review workflows, Evidence
   Provider resolution, changed paths and public-contract classifications,
   exact blocking IDs, verification/signature failures, unauthorized or
   overlapping roles, incomplete plans, expired acceptances and waivers,
   baselined or waived findings, and accepted risks.
5. Preserve exit codes:
   • 0: pass;
   • 1: policy failure;
   • 2: invalid or missing input.

Integrity rules

• Gate only kind: risk, verification.status: confirmed findings.
• Never upgrade severity or confidence during gate execution.
• Never let an unverified finding block unless policy explicitly sets unverified_behavior: fail.
• Require an exact Finding fingerprint, reason, approval identity, and expiry
  for every waiver.
• Require a separate authorized accepter and policy approver, compensating
  controls, exact fingerprint, and expiry for every accepted risk.
• Treat expired baselines, waivers, and risk acceptances as inactive.
• Reject legacy 1.0 artifacts for enforcement while preserving migration
  readability.
• Accept trusted 1.1 artifacts during the compatibility window; require 1.2
  facts, knowledge selection, and critical-flow bindings for newly produced
  artifacts.
• Require passed, hash-valid provider runs for configured release evidence and
  V4/V5 verification.
• Require every complete plan item to cover its declared acceptance evidence
  types with repository-contained, hash-valid evidence.
• Do not create a waiver or baseline entry merely to make CI pass.
• Do not modify product code, findings, policy, baseline, or waivers while running the gate.

If a user asks to change gate policy or accept risk, present the exact impact
and treat that as a separate governance decision. Never encode acceptance by
editing only finding.status.