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ADR-025 Soak Enforcement Policy (v1)

Intent

Enable fail-closed enforcement for releases/promotions based on readiness signals, while keeping PR lanes unchanged.

Scope

  • Enforced only in release/promote workflows.
  • Nightly soak + readiness remain informational.
  • No pull_request triggers introduced.
  • No required-check changes for PRs.

Inputs

Readiness artifact (from Step3 C2): - Artifact name: adr025-nightly-readiness - Files: - nightly_readiness.json - nightly_readiness.md

Policy contract (v1)

Window

  • Default: last 20 runs observed.
  • Minimum required runs: 14
  • If runs_observed < minimum: treat as measurement/contract failure.

Thresholds

  • success_rate >= 0.90
  • contract_fail_rate <= 0.05
  • infra_fail_rate <= 0.01
  • unknown_rate <= 0.05

Exit codes (enforcement script)

  • 0: pass (eligible to promote)
  • 1: policy fail (thresholds violated)
  • 2: measurement/contract fail (missing artifact, invalid schema, insufficient window, parse errors)

Determinism / Reproducibility

  • Enforcement evaluation must be reproducible from:
  • readiness artifact JSON
  • policy file (v1)
  • script version

Override / break-glass

  • Overrides must be explicit and auditable (release owner action).
  • No silent bypass in PR lanes.
  • Override mechanism is defined in Step4C runbook (not in this policy doc).