Checklists

requirements.md

Specification Quality Checklist: Browser-Mediated OAuth/OIDC CLI Authentication

Purpose: Validate specification completeness and quality before proceeding to planning Created: 2026-04-09 Feature: spec.md Status: Ready for Review

Content Quality

  • ✅ No implementation details (languages, frameworks, APIs) in requirement statements
  • ✅ Focused on user value and business needs (elimination of password collection, browser-mediated auth)
  • ✅ Written for stakeholders: both developers (needing implementation guidance) and operators (understanding UX flows)
  • ✅ All mandatory sections completed (Overview, User Scenarios, Requirements, Success Criteria, Architecture, SaaS Contract, Migration, Testing, WP Decomposition)

Requirement Completeness

  • ✅ No [NEEDS CLARIFICATION] markers remain (discovery questions resolved in advance)
  • ✅ Requirements are testable and unambiguous (each has specific acceptance criteria)
  • ✅ Requirement types are separated (Functional FR-###, Non-Functional NFR-###, Constraints C-###)
  • ✅ IDs are unique across FR-001..FR-020, NFR-001..NFR-013, C-001..C-014 (no duplicates)
  • ✅ All requirement rows include a non-empty Status value (all "Approved")
  • ✅ Non-functional requirements include measurable thresholds (e.g., "99.9% SLO", "<2s", "≤15 min")
  • ✅ Success criteria are measurable (95%+ adoption, 99.9% SLO, 0 security incidents, <90s headless auth)
  • ✅ Success criteria are technology-agnostic (no mention of Python, asyncio, keyring library, etc.)
  • ✅ All acceptance scenarios are defined (browser login, headless, logout, status, expiry/refresh, degraded keychain)
  • ✅ Edge cases are identified (callback timeout, refresh race, concurrent 401s, keystore unavailable, slow network)
  • ✅ Scope is clearly bounded (human CLI auth only; machine/service auth is separate epic)
  • ✅ Dependencies and assumptions identified (SaaS contracts in epic #49, OS keystore availability, PKCE standards)

Feature Readiness

  • ✅ All functional requirements have clear acceptance criteria (stored in secure storage, refresh happens, logout revokes, etc.)
  • ✅ User scenarios cover primary flows (browser login, headless login, logout, status, auto-refresh on 401)
  • ✅ Feature meets measurable outcomes defined in Success Criteria (95%+ browser adoption, 99.9% refresh SLO, zero forced re-logins)
  • ✅ No implementation details leak into specification (architecture section describes interfaces and contracts, not code)
  • ✅ SaaS integration contract is explicit and detailed (OAuth endpoints, request/response format, error handling)
  • ✅ Migration strategy is clear and modular (11 work packages, phase-by-phase)
  • ✅ Work packages map to open issues (#560, #561, #562, #564, #565)
  • ✅ Testing plan covers unit, integration, concurrency, and end-to-end scenarios
  • ✅ Data models are defined (OAuthToken, StoredSession, PKCEState, DeviceFlowState, SecureStorageSchema)

SaaS Contract Specification

  • ✅ OAuth 2.0 Authorization endpoint defined (request params, response, error handling)
  • ✅ Token exchange endpoint defined (request/response, error codes, refresh behavior)
  • ✅ Token refresh endpoint defined (grant_type, error codes, token rotation)
  • ✅ Token revocation endpoint defined (idempotency, success response)
  • ✅ Device Authorization Flow endpoints defined (device code, user code format, polling, errors)
  • ✅ All endpoints are RFC-compliant (RFC 6749, RFC 7636, RFC 8628)
  • ✅ Open questions for epic #49 documented (OIDC vs OAuth2, scope granularity, token format, rate limits, consent flow)

Architecture Specification

  • ✅ TokenManager architecture defined (public interface, concurrency model, integration points)
  • ✅ Loopback callback handler specified (port discovery, state validation, timeout, response handling)
  • ✅ Device flow poller specified (polling logic, interval handling, error states)
  • ✅ Secure storage abstraction defined (backends: Keychain, Credential Manager, Secret Service, File)
  • ✅ File fallback workflow explicit (user prompt, permission checks, degraded mode notification)
  • ✅ HTTP transport integration specified (token provisioning, 401 retry, single-flight refresh)
  • ✅ WebSocket integration specified (pre-connect refresh, 401 disconnect handling)
  • ✅ Concurrency model defined (asyncio.Lock for single-flight refresh, no thundering herd)

Migration & Cleanup

  • ✅ Module-by-module migration path provided (11 work packages, phased rollout)
  • ✅ Affected modules inventoried (auth.py, sync/client.py, tracker/saas_client.py, etc.)
  • ✅ Hard cutover strategy clarified (no backwards compatibility, no password fallback)
  • ✅ Legacy test handling addressed (test_auth_concurrent_refresh.py preserved as baseline)
  • ✅ Password removal scope explicit (no password prompts, no legacy /api/v1/token/ references)

Work Package Decomposition

  • ✅ 11 work packages defined (WP01-WP11)
  • ✅ Each WP has clear scope, acceptance criteria, and issue mapping
  • ✅ WPs build incrementally (infrastructure → flows → transport → commands → cleanup)
  • ✅ Testing is distributed across WPs (unit, integration, concurrency, E2E)
  • ✅ Reasonable WP sizes (not too granular, not too large)

Testing Plan

  • ✅ Unit tests specified (TokenManager, storage, loopback, device flow)
  • ✅ Integration tests specified (browser login, headless, logout, status, HTTP retry, WebSocket)
  • ✅ Concurrency tests specified (refresh coordination, 10+ concurrent 401s, stress with file fallback)
  • ✅ End-to-end tests specified (full user journeys, SaaS integration)
  • ✅ Test coverage targets documented (new code: 90%+, per charter)

Consistency & Clarity

  • ✅ Terminology is consistent throughout (access_token, refresh_token, code_verifier, state, etc.)
  • ✅ All acronyms defined on first use (PKCE, OIDC, OAuth2, RFC, RFC6749, RFC7636, RFC8628)
  • ✅ Diagrams/flow descriptions are clear (browser flow, device flow, refresh flow, logout flow)
  • ✅ Cross-references are precise (epic #559, issue #560, ADR reference, RFC numbers)
  • ✅ Timeline dependencies are explicit (epic #49 in parallel; CLI spec assumes contract once landed)

Notes & Flagged Items

No blocking issues found. Spec is complete and ready for planning phase.

Recommendations for Planning Phase

1. Sequence WP02 & WP03 in parallel (loopback + device flow can be built concurrently) 2. Have SaaS contract (#49) kickoff early to unblock integration testing for WP04-WP05 3. Preserve test_auth_concurrent_refresh.py as regression baseline; build new tests alongside 4. Consider staging SaaS environment for integration testing before production rollout 5. Plan operator documentation for the hard cutover message (what changes, why, how users migrate)

Validation Summary

CategoryResultNotes
Content Quality✓ PASSBusiness-focused, stakeholder-readable
Requirements✓ PASS20 FR, 13 NFR, 14 C — all approved + testable
Architecture✓ PASSDetailed interfaces, concurrency model, fallbacks
SaaS Contract✓ PASSExplicit OAuth endpoints, RFC-compliant, open questions documented
Migration✓ PASS11 WPs, phased, module inventory clear
Testing✓ PASSUnit, integration, concurrency, E2E — all scenarios covered
Readiness✓ READYCan proceed directly to /spec-kitty.plan

Approval Date: 2026-04-09 Status: Ready for Planning Phase