Architecture Readiness Checklist Governance Platform

Wrote docs/architecture/checklist-architect/00-overview/checklist-architect-overview.md and docs/architecture/checklist-architect/verification/fitness-self-check.md. Complete architecture checklist governance platform blueprint establishing applicability predicates, non-bypassable CI/CD gates, waiver lifecycles, and verification evidence audits.

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skill: checklist-architect

Architecture Readiness Checklist Governance Platform [CHKARCH-CORP-001]

Summary

This specification establishes the enterprise Architecture Readiness Checklist Governance Platform blueprint, declarative checklist schemas, applicability predicate engines, 90-day time-bounded waiver lifecycles, and automated CI/CD gating for enterprise-architecture-checklist-mesh v3.0 under run ID corp-chkarch-001. It governs architectural readiness verification across 65 product microservices, 450 software engineers, and 32 engineering squads executing 120 production releases per month. It decisively investigates and resolves the deployment failures and compliance violations demonstrated in incident CHK-4919 (where release teams treated operational readiness checklists as voluntary paper forms, allowing an un-encrypted database migration lacking backup validation to bypass inspection, deploy to production, corrupt 180,000 customer records, and incur $3.4M in restoration costs and regulatory penalties). The architecture enforces

declarative YAML readiness checklist specifications, implements automated predicate evaluation based on service tier and deployment context, mandates

cryptographic evidence attachment before release sign-off, and establishes

non-bypassable deployment branch protection gates.

Detailed Description

Operating production release verification through informal wiki checkboxes or manual spreadsheet checklists guarantees human error and catastrophic defect escapes. Under release pressure, engineers skip manual checklist items, assume prerequisites were validated by someone else, or grant permanent informal exemptions. Architecture Checklist Governance establishes an

Executable Verification Control Plane: checklists are declared as machine-readable YAML contracts stored in Git; each checklist item binds to an executable applicability predicate (tier == 1 && datastore_changed == true); items require cryptographic evidence artifacts (test logs, scan reports, KMS key IDs) rather than subjective human checkmarks; waivers carry mandatory 90-day expiration horizons with executive sponsorship; and CI/CD deployment pipelines automatically block any release lacking a verified checklist pass token.

Engineering Release Candidate Pipeline (120 Releases / Month)
                                 │
                                 ▼
┌─────────────────────────────────────────────────────────────────────────────┐
│ Architecture Checklist Evaluation Engine [CHKARCH-CORP-001]                 │
│   ├── Evaluates Applicability Predicate: `service.tier == 1`                │
│   ├── Section 1: Security & Cryptographic Hygiene (KMS / TLS / Secrets)     │
│   ├── Section 2: Data Persistence & Backup Drills (RPO / RTO Evidence)      │
│   └── Section 3: Observability & Runbook Automation (Health Endpoints)      │
└──────────────────────────────────────┬──────────────────────────────────────┘
                                       │
         ┌─────────────────────────────┴─────────────────────────────┐
         ▼ (All Predicates Satisfied & Evidenced)                    ▼ (Unfulfilled Check / Missing Evidence)
[ Release Pass Token Emitted: Signed JWT ]                  [ Deployment Physically BLOCKED in CI/CD ]
  ├── Verified by Kyverno Admission Controller                ├── Detailed Diagnostic Report Generated
  └── Production Promotion Permitted                          └── Incident CHK-4919 Defect Permanently Closed

Criteria and weights

Comparison

Result

Option C is selected. Declarative YAML checklist schemas are standardized across all 65 microservices; automated GitHub Actions and Kyverno admission webhooks enforce checklist pass tokens; waivers expire automatically after 90 days.

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Required Mechanisms

1. Declarative Checklist Schema Specification [MC-CS-01]

apiVersion: architecture.company.com/v1alpha1
kind: ReadinessChecklist
metadata:
  name: payment-clearing-readiness
spec:
  serviceTier: Tier-1
  predicates:
    - id: CHK-SEC-01
      description: "Database encryption at rest verified via AWS KMS Customer Managed Key"
      applicability: "change.containsDatastore == true"
      evidenceRequired: "arn:aws:kms:*"
      verificationMethod: "automated-kms-scanner"
    - id: CHK-RES-01
      description: "Circuit breaker configured with degraded fallback handler"
      applicability: "change.networkDependencies.length > 0"
      evidenceRequired: "envoy_circuit_breaker_spec"
      verificationMethod: "envoy-config-linter"
    - id: CHK-DR-01
      description: "Disaster recovery restore drill executed in staging within last 90 days"
      applicability: "service.tier == 1"
      evidenceRequired: "dr_drill_execution_receipt"
      verificationMethod: "sre-drill-portal-api"

2. The CHK-4919 Mandatory Evidence Enforcement [MC-EE-01]

• The Zero-Subjectivity Invariant:
  • In incident CHK-4919, a developer checked the box "Database Backups Configured" without running a restore test or attaching proof.
  • Checklist Engine Remedy:
    • Checkboxes cannot be marked manually by humans.
    • Each check item requires an automated

Evidence Token (e.g. JSON audit hash from the AWS Backup API or a verified S3 cryptographic receipt).
- Un-evidenced checklist items evaluate to STATUS_INCOMPLETE, blocking production pipeline promotion.

3. Time-Bounded 90-Day Waiver Governance [MC-WG-01]

• If an emergency business priority mandates deploying code with an unfulfilled checklist requirement:
  • A formal Waiver must be submitted via the Architecture Governance Portal.
  • Requires co-sponsorship from the Domain Technical Director and Chief Information Security Officer.
  • Waiver is assigned an absolute 90-day time-to-live (TTL).
  • On Day 91, the waiver expires automatically, breaking CI deployment pipelines until the technical debt is remediated or a formal board extension is granted.

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Invariants and Contracts

Non-Bypassable Checklist Admission Gating [INV-CHK-01]
  Kubernetes production clusters must reject pod deployments lacking a cryptographically signed Checklist Pass Token.
  Direct deployment bypasses or manual deployment gate overrides without valid tokens are physically blocked.

Mandatory Cryptographic Evidence Attachment [INV-CHK-02]
  Checklist items must be evidenced by machine-verifiable artifacts (cryptographic hashes, tool scan reports, ARN IDs).
  Marking readiness checklist items as complete based on subjective verbal assertions is strictly prohibited.

Strict 90-Day Maximum Waiver Horizon [INV-CHK-03]
  Architecture readiness waivers must not exceed a maximum duration of 90 calendar days.
  Issuing permanent waivers or rolling indefinite waiver extensions without remediation plans is barred.

Explicit Unknowns

• Kyverno admission controller webhook verification latency overhead during simultaneous cluster deployments of 40 pods (G-1).
• Time required for newly acquired corporate subsidiaries to map legacy compliance records to this checklist schema (G-2).

Traceability

Verification

No validator was supplied, so no command was run.

Reviewer self-check against checklist architecture standards:

• Enforcement Rigor: PASS. Kyverno admission controller blocks deployments lacking valid signed tokens.
• Evidence Verification: PASS. Replaces manual checkboxes with machine-verifiable evidence artifacts.
• Waiver Discipline: PASS. Enforces strict 90-day hard expiration horizons with executive sponsorship.
• Markdown Hygiene: PASS. Native Markdown syntax strictly adheres to rule_markdown.md.

Open Decisions

• DEC-CHK-01: Elena Rostova to determine whether automated checklist validation failures should immediately dispatch notifications to squad Slack channels with remediation runbook links in Q1 (Owner: Elena Rostova).

Next steps

1. Architecture Governance Guild publishes the official YAML checklist schema definitions in the central repo.
2. DevOps team deploys the Kyverno checklist token admission webhook across all production EKS clusters.
3. Conduct staging simulation attempting to deploy an un-evidenced database service to verify automated pipeline blocking.

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skill: checklist-architect

Architecture Readiness Checklist — Fitness Self-Check [CHKARCH-CORP-FIT-001]

Summary

This fitness self-check evaluates the architecture readiness checklist platform against three critical red-capable domain failure probes: dual writer, undefined grain, and silent schema drift. All targeted probes pass by design construction. A self-check is supporting evidence, never the authoritative gate. Where an executable gate exists, it decides and this document records what it said.

Detailed Description

Residual Risk

• Latency overhead (up to 3.5 seconds) in CI deployment pipelines during active cryptographic signature verification of evidence artifacts against enterprise transparency ledgers. Accepted by Elena Rostova with asynchronous token caching.

Traceability

Verification

No validator was supplied, so no command was run.

Open Decisions

None.

Next steps

1. Architecture Guild incorporates checklist fitness probes into automated release verification pipelines.
2. Platform team configures Prometheus alerts monitoring Kyverno checklist token verification rejection counts.
3. Conduct quarterly governance audits inspecting active 90-day waivers and ensuring automated expiration triggers work.