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+---
+name: rc-manager
+description: Manages Release Candidate (RC) workflows including pre-release tagging, RC lifecycle (alpha/beta/rc), testing validation, RC promotion to production, rollback procedures, and channel-based releases. Handles RC versioning (v1.0.0-rc.1, v1.0.0-beta.1), tracks RC testing status, coordinates RC across multiple repositories, manages canary/blue-green deployments. Activates for release candidate, RC, pre-release, beta release, alpha release, canary release, rc workflow, promote rc, rc testing, staging release, pre-production.
+---
+
+# Release Candidate Manager
+
+**Expertise**: Release Candidate (RC) lifecycle management, pre-release workflows, testing validation, and production promotion.
+
+## Core Capabilities
+
+### 1. RC Version Tagging
+
+**Pre-Release Version Format**:
+
+```yaml
+# Semantic Versioning Pre-Release
+MAJOR.MINOR.PATCH-PRERELEASE.ITERATION
+
+Examples:
+  1.0.0-alpha.1       # Alpha release (very early, unstable)
+  1.0.0-alpha.2       # Alpha iteration 2
+  1.0.0-beta.1        # Beta release (feature complete, testing)
+  1.0.0-beta.2        # Beta iteration 2
+  1.0.0-rc.1          # Release candidate (near production)
+  1.0.0-rc.2          # RC iteration 2
+  1.0.0               # Final production release
+
+Version Ordering:
+  1.0.0-alpha.1 < 1.0.0-alpha.2 < 1.0.0-beta.1 < 1.0.0-rc.1 < 1.0.0
+```
+
+**RC Iteration Rules**:
+```yaml
+# First RC
+v1.0.0-rc.1
+
+# Bug found, fixed → New RC
+v1.0.0-rc.2
+
+# More bugs fixed → New RC
+v1.0.0-rc.3
+
+# All tests pass → Promote to production
+v1.0.0 (final)
+
+# Key Rule: Never modify existing RC tags (immutable)
+```
+
+### 2. RC Lifecycle
+
+**Three-Stage Pre-Release**:
+
+```mermaid
+graph LR
+    A[Development] -->|Feature Complete| B[Alpha]
+    B -->|Stable API| C[Beta]
+    C -->|Production Ready| D[RC]
+    D -->|Validated| E[Production]
+
+    B -->|Bug Fix| B
+    C -->|Bug Fix| C
+    D -->|Bug Fix| D
+```
+
+**Alpha Release** (Early Development):
+```yaml
+Purpose: Early feedback, API exploration
+Tag: v1.0.0-alpha.1, v1.0.0-alpha.2, ...
+Audience: Internal developers, early adopters
+Stability: Unstable (breaking changes expected)
+Duration: Weeks to months
+Testing: Unit + integration tests
+Deployment: Dev environment only
+
+What Can Change:
+  - API contracts (breaking changes OK)
+  - Features (add/remove freely)
+  - Architecture (refactor allowed)
+  - Performance (optimize later)
+
+Exit Criteria:
+  - API stabilized (no more breaking changes)
+  - Core features implemented
+  - Integration tests passing
+```
+
+**Beta Release** (Feature Complete):
+```yaml
+Purpose: Broader testing, performance validation
+Tag: v1.0.0-beta.1, v1.0.0-beta.2, ...
+Audience: Beta testers, QA team, select customers
+Stability: Mostly stable (minor breaking changes only)
+Duration: 2-6 weeks
+Testing: E2E tests, performance tests, security scans
+Deployment: Staging environment
+
+What Can Change:
+  - Bug fixes (no new features)
+  - Minor API tweaks (avoid breaking changes)
+  - Performance improvements
+  - Documentation
+
+Exit Criteria:
+  - All planned features complete
+  - No critical bugs
+  - Performance benchmarks met
+  - Security scan clean
+```
+
+**Release Candidate (RC)** (Production Ready):
+```yaml
+Purpose: Final validation before production
+Tag: v1.0.0-rc.1, v1.0.0-rc.2, ...
+Audience: Production-like environment, select production users
+Stability: Production-ready (no changes except critical fixes)
+Duration: 1-2 weeks
+Testing: Smoke tests, load tests, chaos engineering
+Deployment: Pre-production / Canary (1-5% traffic)
+
+What Can Change:
+  - Critical bug fixes ONLY
+  - Hotfixes for showstoppers
+  - Configuration tweaks
+
+Exit Criteria:
+  - All tests passing (100%)
+  - No blocker bugs
+  - Performance stable under load
+  - Stakeholder sign-off
+  - Chaos engineering passed
+```
+
+**Production Release**:
+```yaml
+Purpose: Stable release for all users
+Tag: v1.0.0 (final)
+Audience: All production users
+Stability: Stable (no changes, only hotfix branches)
+Testing: Continuous monitoring
+Deployment: Production (100% traffic)
+
+Post-Release:
+  - Monitor for 24-48 hours
+  - Track error rates, latency, throughput
+  - Rollback plan ready
+  - Hotfix branch created from tag
+```
+
+### 3. RC Testing & Validation
+
+**Multi-Level Testing Matrix**:
+
+```yaml
+Alpha Testing:
+  - Unit tests: 80%+ coverage
+  - Integration tests: Core flows
+  - Manual testing: Basic functionality
+  - Performance: Not critical yet
+  - Security: Basic scans
+
+Beta Testing:
+  - Unit tests: 90%+ coverage
+  - Integration tests: All flows
+  - E2E tests: Critical paths
+  - Performance: Load testing (50% expected load)
+  - Security: OWASP Top 10 scan
+  - Manual testing: Edge cases
+
+RC Testing:
+  - Unit tests: 90%+ coverage
+  - Integration tests: All flows
+  - E2E tests: All paths
+  - Performance: Load testing (150% expected load)
+  - Security: Full penetration testing
+  - Chaos engineering: Kill random services
+  - Manual testing: Exploratory testing
+  - Smoke tests: After deployment
+
+Production:
+  - Continuous monitoring
+  - Real user monitoring (RUM)
+  - Error tracking (Sentry, Datadog)
+  - APM (Application Performance Monitoring)
+  - Synthetic monitoring (Pingdom, UptimeRobot)
+```
+
+**Validation Checklist** (RC → Production):
+```markdown
+## RC Promotion Checklist: v1.0.0-rc.3 → v1.0.0
+
+### Automated Tests
+- [x] All unit tests passing (2,345 tests)
+- [x] All integration tests passing (456 tests)
+- [x] All E2E tests passing (123 tests)
+- [x] Performance tests: <200ms p95 latency ✓
+- [x] Load tests: 10K req/s sustained ✓
+- [x] Security scan: No critical/high vulnerabilities ✓
+
+### Manual Tests
+- [x] Smoke tests: All critical paths working
+- [x] Exploratory testing: No major issues found
+- [x] Cross-browser testing: Chrome, Firefox, Safari ✓
+- [x] Mobile testing: iOS, Android ✓
+
+### Infrastructure
+- [x] Database migrations tested (forward + rollback)
+- [x] Canary deployment: 5% traffic for 24 hours ✓
+- [x] No increase in error rate
+- [x] No performance degradation
+- [x] Rollback plan validated
+
+### Documentation
+- [x] CHANGELOG.md updated
+- [x] API documentation updated
+- [x] Migration guide written (breaking changes)
+- [x] Release notes drafted
+
+### Stakeholder Approval
+- [x] Product Manager sign-off
+- [x] Engineering Lead sign-off
+- [x] Security Team sign-off
+- [x] Customer Success briefed
+
+### Monitoring
+- [x] Alerts configured (error rate, latency)
+- [x] Dashboards updated (Grafana)
+- [x] On-call schedule confirmed
+
+**Decision**: APPROVED for production release ✅
+```
+
+### 4. RC Promotion Workflow
+
+**Step-by-Step RC → Production**:
+
+```bash
+# 1. Create initial RC
+git tag v1.0.0-rc.1
+git push origin v1.0.0-rc.1
+
+# 2. Deploy to staging
+kubectl apply -f k8s/staging/
+# Wait for pods ready
+
+# 3. Run automated tests
+npm run test:e2e
+npm run test:performance
+npm run test:security
+
+# 4. Deploy canary (5% traffic)
+kubectl apply -f k8s/canary/
+# Monitor for 24 hours
+
+# 5. Found bug → Fix and iterate
+git tag v1.0.0-rc.2
+git push origin v1.0.0-rc.2
+# Repeat steps 2-4
+
+# 6. All tests pass → Promote to production
+git tag v1.0.0
+git push origin v1.0.0
+
+# 7. Deploy to production (gradual rollout)
+# - 10% traffic (1 hour)
+# - 25% traffic (2 hours)
+# - 50% traffic (4 hours)
+# - 100% traffic (8 hours)
+
+# 8. Monitor post-release
+# - Error rates
+# - Latency (p50, p95, p99)
+# - Throughput
+# - User feedback
+
+# 9. Mark RC as promoted
+# Update metadata:
+# .specweave/increments/0045-v1-release/metadata.json
+# {
+#   "rc": {
+#     "promoted": true,
+#     "promotedAt": "2025-01-15T10:00:00Z",
+#     "finalVersion": "1.0.0",
+#     "rcVersion": "1.0.0-rc.3"
+#   }
+# }
+```
+
+### 5. Multi-Repo RC Coordination
+
+**Coordinated RC Across Repos**:
+
+```yaml
+# Scenario: Product v3.0.0-rc.1 spans 4 repos
+
+Product: v3.0.0-rc.1
+RC Versions:
+  - frontend: v5.0.0-rc.1
+  - backend: v3.0.0-rc.1
+  - api-gateway: v4.0.0-rc.1
+  - shared-lib: v2.0.0-rc.1
+
+RC Release Process:
+  1. Tag all repos with rc.1
+  2. Deploy to staging (all services)
+  3. Run cross-service E2E tests
+  4. Found bugs in frontend + gateway
+  5. Fix bugs, tag rc.2:
+     - frontend: v5.0.0-rc.2
+     - api-gateway: v4.0.0-rc.2
+     - backend: v3.0.0-rc.1 (unchanged)
+     - shared-lib: v2.0.0-rc.1 (unchanged)
+  6. Re-test all services
+  7. All pass → Promote to production:
+     - frontend: v5.0.0
+     - backend: v3.0.0
+     - api-gateway: v4.0.0
+     - shared-lib: v2.0.0
+  8. Update product version matrix:
+     Product v3.0.0 = {frontend: v5.0.0, backend: v3.0.0, ...}
+```
+
+**RC Dependency Validation**:
+```yaml
+# Ensure RC versions are compatible
+
+Check 1: Shared library versions match
+  frontend depends on: shared-lib ^2.0.0
+  backend depends on: shared-lib ^2.0.0
+  shared-lib RC: v2.0.0-rc.1 ✓
+
+Check 2: API contracts aligned
+  frontend API client: v4.0.0-rc.1
+  api-gateway version: v4.0.0-rc.1 ✓
+
+Check 3: Database schema compatible
+  Backend requires: schema v12
+  Current staging schema: v12 ✓
+
+Result: All dependencies aligned ✓
+```
+
+### 6. Channel-Based Releases
+
+**Release Channels**:
+
+```yaml
+# NPM-style channels
+Stable: v1.0.0, v1.1.0, v1.2.0
+  - Production users (default)
+  - Fully tested and validated
+  - npm install myapp (installs latest stable)
+
+Beta: v1.1.0-beta.1, v1.2.0-beta.1
+  - Beta testers opt-in
+  - Feature complete, testing phase
+  - npm install myapp@beta
+
+Alpha: v1.1.0-alpha.1, v1.2.0-alpha.1
+  - Early adopters, internal testing
+  - Bleeding edge, unstable
+  - npm install myapp@alpha
+
+Canary: v1.1.0-canary.abc123 (commit-based)
+  - Continuous deployment from main branch
+  - Every commit = new canary
+  - npm install myapp@canary
+```
+
+**Channel Deployment Strategy**:
+```yaml
+# Kubernetes deployment channels
+
+Stable Deployment (Production):
+  replicas: 10
+  traffic: 100%
+  image: myapp:1.0.0
+  rollout: gradual (10% → 25% → 50% → 100%)
+
+Beta Deployment (Pre-Production):
+  replicas: 2
+  traffic: 0% (manual testing only)
+  image: myapp:1.1.0-beta.1
+  namespace: beta
+
+Canary Deployment (Production + Experimental):
+  replicas: 1
+  traffic: 5% (random users)
+  image: myapp:1.1.0-canary.abc123
+  rollback: automatic if error rate > 1%
+  namespace: production
+```
+
+### 7. RC Rollback Procedures
+
+**When to Rollback RC**:
+```yaml
+Immediate Rollback Triggers:
+  - Error rate > 5% (critical)
+  - Latency p95 > 2x baseline (severe degradation)
+  - Data corruption detected (critical)
+  - Security vulnerability discovered (critical)
+  - Showstopper bug (app unusable)
+
+Evaluation Period:
+  - Monitor for 1 hour after deployment
+  - Check dashboards: Grafana, Datadog, Sentry
+  - Review user feedback: Support tickets, social media
+  - Consult on-call engineer
+
+Decision Matrix:
+  - Critical issue + production = Immediate rollback
+  - Severe issue + staging = Fix and iterate RC
+  - Minor issue + canary = Monitor and evaluate
+```
+
+**Rollback Execution**:
+```bash
+# Rollback from v1.0.0-rc.2 to v1.0.0-rc.1
+
+# 1. Stop new deployments
+kubectl rollout pause deployment/myapp
+
+# 2. Rollback to previous RC
+kubectl rollout undo deployment/myapp
+
+# 3. Verify rollback
+kubectl get pods
+kubectl logs <pod-name>
+
+# 4. Validate health
+curl https://api.example.com/health
+# Expected: 200 OK
+
+# 5. Monitor metrics
+# - Error rate back to normal? ✓
+# - Latency back to baseline? ✓
+# - User reports resolved? ✓
+
+# 6. Communicate
+# - Notify team: "Rolled back to rc.1"
+# - Update incident report
+# - Schedule postmortem
+
+# 7. Fix issues, create rc.3
+git tag v1.0.0-rc.3
+git push origin v1.0.0-rc.3
+```
+
+### 8. RC Documentation
+
+**RC Status Tracking**:
+```markdown
+# RC Status: v1.0.0-rc.3
+
+## Timeline
+- 2025-01-10: Created v1.0.0-rc.1
+- 2025-01-12: Found bug in auth flow → v1.0.0-rc.2
+- 2025-01-14: Found performance issue → v1.0.0-rc.3
+- 2025-01-15: All tests passing ✓
+
+## Testing Status
+- [x] Unit tests (2,345 tests)
+- [x] Integration tests (456 tests)
+- [x] E2E tests (123 tests)
+- [x] Performance tests (p95 < 200ms)
+- [x] Security scan (no critical issues)
+- [x] Load test (10K req/s sustained)
+- [x] Chaos engineering (service failures handled)
+
+## Deployment History
+- rc.1: Staging (2025-01-10) → Bug found ❌
+- rc.2: Staging (2025-01-12) → Performance issue ❌
+- rc.3: Staging (2025-01-14) → All tests pass ✓
+- rc.3: Canary 5% (2025-01-15) → Monitoring...
+
+## Issues Found
+1. Bug in rc.1: Authentication fails for SSO users
+   - Fixed: Add SSO provider check
+   - Commit: abc123
+
+2. Performance issue in rc.2: API latency p95 = 800ms
+   - Fixed: Optimize database query
+   - Commit: def456
+
+## Promotion Decision
+- **Status**: APPROVED for production ✅
+- **Approvers**: PM (Jane), Eng Lead (John), Security (Alice)
+- **Scheduled**: 2025-01-16 10:00 AM UTC
+- **Rollout Plan**: Gradual (10% → 25% → 50% → 100%)
+```
+
+## When to Use This Skill
+
+**Ask me to**:
+
+1. **Create RC**:
+   - "Create release candidate for v1.0.0"
+   - "Tag v2.0.0-rc.1"
+   - "Start RC workflow for multi-repo release"
+
+2. **Manage RC lifecycle**:
+   - "What's the status of RC v1.0.0-rc.3?"
+   - "List all RCs for product v3.0.0"
+   - "Show RC testing checklist"
+
+3. **Validate RC**:
+   - "Is RC ready for production?"
+   - "Run RC validation checks"
+   - "Check RC promotion criteria"
+
+4. **Promote RC**:
+   - "Promote v1.0.0-rc.3 to production"
+   - "Deploy RC to canary"
+   - "Gradual rollout of RC"
+
+5. **Rollback RC**:
+   - "Rollback from rc.2 to rc.1"
+   - "RC deployment failed, rollback"
+   - "Undo canary deployment"
+
+## Best Practices
+
+**RC Creation**:
+- Always start with rc.1 (never skip)
+- Tag immutable (never modify existing RC)
+- Document what changed since last release
+
+**RC Testing**:
+- Run ALL tests for each RC iteration
+- Never skip validation steps
+- Use production-like data in staging
+
+**RC Promotion**:
+- Gradual rollout (10% → 25% → 50% → 100%)
+- Monitor for 1+ hour at each stage
+- Have rollback plan ready
+
+**RC Documentation**:
+- Track all RC iterations
+- Document bugs found and fixes
+- Record promotion decision rationale
+
+## Integration Points
+
+**Release Coordinator**:
+- Creates RCs for coordinated releases
+- Validates RC dependencies
+- Promotes RCs in correct order
+
+**Version Aligner**:
+- Manages RC version tags
+- Ensures RC compatibility
+- Updates version matrix with RC info
+
+**Living Docs**:
+- Documents RC status
+- Tracks RC history
+- Links to GitHub releases
+
+**CI/CD**:
+- Automates RC deployment
+- Runs validation tests
+- Monitors RC health
+
+## Example Workflows
+
+### Single-Repo RC
+
+```bash
+# 1. Create RC
+/specweave-release:rc create 1.0.0
+
+# 2. Deploy to staging
+# (Automated via CI/CD)
+
+# 3. Run tests
+/specweave-release:rc test 1.0.0-rc.1
+
+# 4. Bug found → iterate
+/specweave-release:rc create 1.0.0 --iteration 2
+
+# 5. All tests pass → promote
+/specweave-release:rc promote 1.0.0-rc.3
+```
+
+### Multi-Repo RC
+
+```bash
+# 1. Create coordinated RC
+/specweave-release:rc create-multi product-v3.0.0
+
+# 2. Tags all repos with rc.1
+# - frontend: v5.0.0-rc.1
+# - backend: v3.0.0-rc.1
+# - api-gateway: v4.0.0-rc.1
+
+# 3. Deploy all to staging
+# (Coordinated deployment)
+
+# 4. Cross-service E2E tests
+/specweave-release:rc test-multi product-v3.0.0-rc.1
+
+# 5. Issues found → iterate
+# - frontend: rc.2
+# - api-gateway: rc.2
+# - backend: unchanged (rc.1)
+
+# 6. All pass → promote
+/specweave-release:rc promote-multi product-v3.0.0-rc.2
+```
+
+## Commands Integration
+
+Works with release commands:
+
+- `/specweave-release:rc create <version>` - Create new RC
+- `/specweave-release:rc test <rc-version>` - Validate RC
+- `/specweave-release:rc promote <rc-version>` - Promote to production
+- `/specweave-release:rc rollback <rc-version>` - Rollback RC
+- `/specweave-release:rc status <rc-version>` - Show RC status
+
+## Dependencies
+
+**Required**:
+- Git (version tags)
+- SpecWeave core (increment lifecycle)
+
+**Optional**:
+- Kubernetes (`kubectl`) - Deployment management
+- Docker (`docker`) - Container testing
+- GitHub CLI (`gh`) - Release notes
+- CI/CD (GitHub Actions, GitLab CI)
+
+## Output
+
+**Creates/Updates**:
+- Git tags (v1.0.0-rc.1, v1.0.0-rc.2, ...)
+- RC status document (increment reports/)
+- Deployment manifests (K8s, Docker)
+- Test reports
+- Promotion checklist
+
+**Provides**:
+- RC version history
+- Testing validation status
+- Deployment timeline
+- Rollback procedures
+- Production readiness assessment
+
+---
+
+**Remember**: Release Candidates are the final gate before production. Never rush RC validation. Always:
+- Test thoroughly (unit + integration + E2E + performance + security)
+- Deploy gradually (canary → 10% → 25% → 50% → 100%)
+- Monitor continuously (error rates, latency, user feedback)
+- Have rollback plan ready (test rollback procedure)
+- Document everything (bugs found, fixes applied, decisions made)
+
+**Goal**: Catch issues before production, deploy confidently, rollback quickly if needed.