ColaFlow/docs/plans/sprint_5_story_17.md

story_id, sprint_id, parent_story_id, status, priority, assignee, created_date, estimated_days, phase

story_id	sprint_id	parent_story_id	status	priority	assignee	created_date	estimated_days	phase
story_17	sprint_5	story_0	not_started	P0	backend	2025-11-09	10	5

Story 17: Testing, Optimization & Documentation

Parent Epic: Story 0 - Integrate Microsoft .NET MCP SDK Phase: 5 - Testing & Optimization (Week 7-8) Priority: P0 - Critical Estimated Effort: 10 days (2 weeks) Dependencies: Story 16 (Transport migration complete)

User Story

As a backend team lead, I want comprehensive testing, performance optimization, and documentation for MCP SDK integration, So that we have production-ready code with zero regressions and complete knowledge transfer.

Business Value

• Quality Assurance: Zero CRITICAL bugs in production
• Performance Validation: Confirm ≥20% improvement target met
• Security Confidence: Pass security audit with zero HIGH vulnerabilities
• Team Knowledge: Complete documentation for future maintenance
• Production Ready: Confident deployment with rollback plan

Week 7: Integration Testing & Bug Fixes

7.1 End-to-End Integration Testing (2 days)

Test Scenarios:

1. Claude Desktop Integration (stdio)

   • Initialize handshake
   • List Tools and Resources
   • Call each Tool (10 total)
   • Query each Resource (11 total)
   • Verify Diff Preview workflow
   • Test approval/rejection flow

2. Web Client Integration (HTTP/SSE)

   • HTTP POST requests to MCP endpoints
   • SSE connection for notifications
   • API Key authentication
   • CORS preflight handling

3. Multi-Tenant Isolation

   • Create 2 test tenants
   • Verify cross-tenant data access blocked
   • Test API Keys scoped to tenants
   • Validate Global Query Filters

4. Error Handling

   • Invalid API Key
   • Missing required parameters
   • Malformed JSON-RPC requests
   • Network failures (timeout, disconnect)

Deliverables:

• Integration test suite (50+ test cases)
• Test execution report
• Bug tracking spreadsheet

---

7.2 Performance Testing & Optimization (2 days)

Baseline vs. Target Performance:

Metric	Baseline (Custom)	Target (SDK)	Actual (Measured)
Tool Execution (P95)	150ms	120ms (20% faster)	TBD
Resource Query (P95)	120ms	85ms (30% faster)	TBD
Throughput	70 req/s	100 req/s	TBD
Memory Usage	180 MB	150 MB (15% less)	TBD

Performance Tests:

1. Load Testing (Apache Bench or k6)

   • 100 concurrent users
   • 1000 requests total
   • Measure P50, P95, P99 latency

2. Memory Profiling (dotMemory)

   • Baseline memory usage
   • Peak memory under load
   • Memory leak detection

3. Database Query Performance

   • EF Core query analysis
   • Index usage verification
   • N+1 query detection

Optimization Tasks (if needed):

• Add missing database indexes
• Optimize Redis cache keys
• Tune connection pool sizes
• Enable HTTP response compression

Deliverables:

• Performance benchmark report
• Optimization recommendations
• Before/after comparison charts

---

7.3 Security Audit (1 day)

Security Tests:

1. Authentication & Authorization

   • API Key brute force attempt (rate limiting)
   • Expired API Key handling
   • Invalid API Key handling
   • Field-level permission bypass attempts

2. Multi-Tenant Security

   • Cross-tenant data access attempts
   • SQL injection attempts (parameterized queries)
   • JSONB injection attempts
   • Path traversal attempts (Resource URIs)

3. Input Validation

   • Tool parameter validation
   • Resource URI validation
   • JSON-RPC message validation
   • CSRF protection (HTTP transport)

4. Sensitive Data Exposure

   • Log scrubbing (no API Keys, passwords logged)
   • Error messages (no stack traces to clients)
   • HTTPS enforcement (production)

Security Checklist:

• OWASP Top 10 compliance
• API Key BCrypt hashed (never plaintext)
• HTTPS only (production)
• Rate limiting enabled
• CORS properly configured
• SQL injection protected (EF Core parameterized)
• XSS protection (JSON escaping)
• Sensitive data not logged

Deliverables:

• Security audit report (PASS/FAIL per category)
• Vulnerability remediation plan (if issues found)

---

7.4 Bug Fixes & Refinement (1 day)

Bug Triage Process:

1. Categorize bugs (CRITICAL, HIGH, MEDIUM, LOW)
2. Fix CRITICAL and HIGH bugs immediately
3. Defer MEDIUM/LOW bugs to backlog (if not blocking)

Expected Bug Types:

• Integration test failures
• Performance bottlenecks
• Edge case handling (null values, empty lists)
• Error message clarity

Deliverables:

• Bug fix commits
• Updated test suite (all passing)

---

Week 8: Documentation & Production Readiness

8.1 Architecture Documentation Update (2 days)

Documents to Update:

1. MCP Server Architecture (docs/architecture/mcp-server-architecture.md)

   • Add SDK integration section (500+ lines)
   • Update component diagrams
   • Document hybrid architecture decisions
   • Add SDK vs. Custom comparison table

2. SDK Migration Guide (docs/guides/mcp-sdk-migration.md) - NEW

   • Step-by-step migration instructions
   • Code examples (before/after)
   • Common pitfalls and solutions
   • Troubleshooting guide

3. ADR: MCP SDK Adoption (docs/architecture/adr/005-mcp-sdk-adoption.md) - NEW

   • Decision context
   • Options considered
   • Decision rationale
   • Consequences and trade-offs

Deliverables:

• 3 updated/new documents (1500+ lines total)
• Architecture diagrams (Mermaid or Draw.io)
• Code examples repository

---

8.2 API Documentation (1 day)

OpenAPI/Swagger Updates:

1. Tool Endpoints

   • Document all 10 Tools
   • Parameter schemas
   • Response examples
   • Error codes

2. Resource Endpoints

   • Document all 11 Resources
   • URI patterns
   • Query parameters
   • Response formats

3. Authentication

   • API Key header format
   • Error responses (401, 403)
   • Rate limiting headers

Example Swagger Annotation:

[McpTool(Name = "create_issue")]
[SwaggerOperation(
    Summary = "Create a new issue",
    Description = "Creates Epic/Story/Task with Diff Preview approval workflow"
)]
[SwaggerResponse(200, "Pending change created", typeof(PendingChangeDto))]
[SwaggerResponse(400, "Invalid parameters")]
[SwaggerResponse(401, "Unauthorized")]
public class CreateIssueTool { ... }

Deliverables:

• Complete Swagger/OpenAPI spec
• Interactive API documentation (Swagger UI)

---

8.3 Code Cleanup (1 day)

Cleanup Tasks:

1. Remove Old Code

   • Delete McpProtocolMiddleware.cs
   • Delete ApiKeyAuthMiddleware.cs
   • Delete IMcpTool.cs interface
   • Delete IMcpResource.cs interface
   • Remove obsolete NuGet packages

2. Update Code Comments

   • Add XML documentation to public APIs
   • Update inline comments
   • Remove TODO/FIXME comments

3. Code Style Enforcement

   • Run dotnet format
   • Fix StyleCop warnings
   • Consistent naming conventions

4. Dependency Audit

   • Remove unused NuGet packages
   • Update vulnerable packages
   • Lock SDK version (avoid auto-updates)

Deliverables:

• Clean codebase (zero warnings)
• Updated .csproj files
• Dependency lock file

---

8.4 Production Readiness & Deployment (2 days)

Production Readiness Checklist:

• Testing

  • All integration tests pass (>80% coverage)
  • Performance benchmarks meet targets
  • Security audit passed (0 CRITICAL, 0 HIGH)

• Documentation

  • Architecture docs updated
  • API docs complete
  • Migration guide published

• Code Quality

  • Code reviewed and approved
  • Zero StyleCop warnings
  • No TODO/FIXME comments

• Configuration

  • Environment variables documented
  • Secrets managed (Azure Key Vault / AWS Secrets Manager)
  • Feature flags configured

• Deployment

  • Staging deployment successful
  • Smoke tests passed
  • Rollback plan documented

Staging Deployment:

1. Deploy to staging environment
2. Run smoke tests (5 critical scenarios)
3. Monitor logs for errors
4. Validate performance metrics

Smoke Test Scenarios:

• Claude Desktop can connect (stdio)
• Web client can connect (HTTP/SSE)
• Create issue Tool works
• List projects Resource works
• Diff Preview approval flow works

Rollback Plan:

• Database: No schema changes (safe to rollback)
• Code: Git tag before deployment, revert if needed
• Configuration: Feature flag to disable SDK (fallback to custom)

Deliverables:

• Production readiness report (PASS/FAIL)
• Staging deployment success confirmation
• Rollback plan document

---

8.5 Final Code Review & Sign-Off (1 day)

Review Checklist:

• Architect review (architecture compliance)
• Tech lead review (code quality)
• Security review (security best practices)
• QA review (test coverage)
• Product manager sign-off (business value delivered)

Sign-Off Criteria:

• All acceptance criteria met (Epic level)
• Performance targets achieved (≥20% improvement)
• Security audit passed (0 CRITICAL, 0 HIGH)
• Documentation complete
• Production deployment plan approved

Deliverables:

• Code review approval
• Sign-off document (all stakeholders)

---

Acceptance Criteria

Testing

• Integration test suite complete (50+ tests)
• All integration tests pass (100%)
• Performance benchmarks meet targets (≥20% improvement)
• Security audit passed (0 CRITICAL, 0 HIGH)

Documentation

• Architecture docs updated (1500+ lines)
• API docs complete (Swagger)
• Migration guide published
• ADR documented

Code Quality

• Old code removed (330+ lines)
• Zero StyleCop warnings
• XML documentation complete
• Code reviewed and approved

Production Readiness

• Staging deployment successful
• Smoke tests passed
• Rollback plan documented
• All stakeholders signed off

Tasks Breakdown

Week 7: Testing & Optimization

• Task 1 - End-to-end integration testing - 2 days
• Task 2 - Performance testing and optimization - 2 days
• Task 3 - Security audit - 1 day
• Task 4 - Bug fixes and refinement - 1 day

Week 8: Documentation & Deployment

• Task 5 - Architecture documentation update - 2 days
• Task 6 - API documentation (Swagger) - 1 day
• Task 7 - Code cleanup - 1 day
• Task 8 - Production readiness and staging deployment - 2 days
• Task 9 - Final code review and sign-off - 1 day

Progress: 0/9 tasks completed (0%)

Success Metrics

Quality Metrics

• Test Coverage: ≥80%
• Integration Tests: 50+ tests, 100% passing
• Security: 0 CRITICAL, 0 HIGH vulnerabilities
• Code Quality: 0 StyleCop warnings

Performance Metrics

• Tool Execution: ≥20% faster (target: 120ms P95)
• Resource Query: ≥30% faster (target: 85ms P95)
• Throughput: ≥100 req/s (vs. 70 baseline)
• Memory: ≤150 MB (vs. 180 baseline)

Documentation Metrics

• Architecture Docs: 1500+ lines updated
• API Docs: 100% Swagger coverage
• Migration Guide: Complete step-by-step
• Code Examples: 10+ before/after samples

Definition of Done

• All Week 7 tasks complete (testing, optimization, security, bug fixes)
• All Week 8 tasks complete (docs, cleanup, deployment, sign-off)
• Integration tests pass (100%)
• Performance targets met (≥20% improvement)
• Security audit passed (0 CRITICAL, 0 HIGH)
• Documentation complete (architecture, API, migration guide)
• Code cleanup complete (old code removed, warnings fixed)
• Staging deployment successful
• Smoke tests passed
• All stakeholders signed off

---

Created: 2025-11-09 by Product Manager Agent Owner: Backend Team Lead Start Date: 2026-01-06 (Week 7) Target Date: 2026-01-17 (End of Week 8) Status: Not Started