# Functional Requirements Extraction Report

**Date:** 2026-02-11
**Project:** TracerTM (Requirements Traceability Matrix)
**Scope:** API specifications, feature documentation, and test coverage analysis

---

## Executive Summary

TracerTM is a comprehensive **agent-native, multi-view requirements traceability and project management system**. The codebase implements **672 API endpoints** across three integrated services (Gateway, Go, Python), with **368 test files** providing coverage across multiple feature areas.

### Key Metrics

| Metric | Value | Notes |
|--------|-------|-------|
| **Total API Endpoints** | 672 | Gateway (333), Python (256), Go (83) |
| **Feature Areas** | 30+ | Projects, integrations, auth, analysis, workflows, etc. |
| **Test Files** | 368 | Python (203), Go (77), Frontend (118) |
| **Test Coverage Areas** | 25+ | Repositories, APIs, TUI, integration, E2E |
| **HTTP Methods** | 5 | GET (315), POST (251), DELETE (58), PUT (46), OPTIONS (2) |

---

## Part 1: API Endpoint Analysis

### 1.1 API Specification Overview

Three independent OpenAPI specifications define the system's HTTP contract:

#### Gateway API (`openapi/gateway-api.json`)
- **Total Endpoints:** 333
- **Role:** Single entry point for all client requests
- **Methods:**
  - GET: 156 (47%)
  - POST: 124 (37%)
  - DELETE: 29 (9%)
  - PUT: 23 (7%)
  - OPTIONS: 1

#### Go API (`openapi/go-api.json`)
- **Total Endpoints:** 83
- **Role:** Core backend services (graph, analysis, distributed operations)
- **Methods:**
  - GET: 40 (48%)
  - POST: 33 (40%)
  - DELETE: 6 (7%)
  - PUT: 4 (5%)

#### Python API (`openapi/python-api.json`)
- **Total Endpoints:** 256
- **Role:** Domain services (items, links, test management, AI/ML)
- **Methods:**
  - GET: 119 (46%)
  - POST: 94 (37%)
  - DELETE: 23 (9%)
  - PUT: 19 (7%)
  - OPTIONS: 1

### 1.2 Feature Areas by Endpoint Count

The top 30 feature areas represent ~670 endpoints (99.7% of total):

| Rank | Feature Area | Endpoints | Primary Focus |
|------|--------------|-----------|---------------|
| 1 | **Projects** | 98 | Project lifecycle, versions, export/import, stats |
| 2 | **Integrations** | 60 | GitHub, Linear, webhooks, OAuth, sync |
| 3 | **Auth** | 28 | Login, signup, refresh, OAuth callback, device auth |
| 4 | **Test Runs** | 24 | Test execution, results, bulk operations |
| 5 | **Problems** | 22 | Issue tracking, RCA, workarounds, status |
| 6 | **Test Cases** | 22 | Test definition, coverage, approval, status |
| 7 | **Webhooks** | 22 | Event delivery, logs, regeneration, inbound |
| 8 | **Processes** | 20 | Process versioning, execution, deprecation |
| 9 | **Test Suites** | 20 | Suite management, test grouping, status |
| 10 | **Graph** | 18 | Analysis, visualization, caching, validation |
| 11 | **Features** | 18 | Feature definition, scenarios, traceability |
| 12 | **Coverage** | 18 | Coverage analysis, gaps, matrix, verification |
| 13 | **Blockchain** | 16 | Version chains, embeddings, baselines (immutability) |
| 14 | **Items** | 14 | Requirements, requirements items, pivot operations |
| 15 | **Analysis** | 14 | Impact, cycles, gaps, health, shortest-path |
| 16 | **Workflows** | 14 | Automation, graph-diff, graph-export, triggers |
| 17 | **Docs** | 12 | Document search, retrieval, metadata |
| 18 | **ADRs** | 12 | Architecture Decision Records, traceability |
| 19 | **Contracts** | 12 | Contract management, traceability |
| 20 | **MCP** | 12 | Model Context Protocol (AI integration) |
| 21 | **QA Metrics** | 12 | Pass rate, defect density, coverage, flaky tests |
| 22 | **Agent** | 10 | Agent sessions, execution, coordination |
| 23 | **Links** | 10 | Link management, grouping, relationships |
| 24 | **Spec Analytics** | 8 | Specification validation (ISO 29148), EARS patterns |
| 25 | **Executions** | 8 | Workflow/process execution, completion, artifacts |
| 26 | **Journeys** | 6 | User flows, call chains, data paths |
| 27 | **Notifications** | 6 | Event notifications, read status |
| 28 | **Accounts** | 6 | Account management, switching |

---

## Part 2: Detailed Feature Specifications

### 2.1 Core Project Management

**Feature:** Projects (`/api/v1/projects/*`)

- **98 endpoints** covering:
  - Project CRUD: `GET /projects`, `POST /projects`, `GET /projects/{id}`, `PUT /projects/{id}`
  - Versioning: `/projects/{id}/versions/compare`, `/projects/{id}/versions/compare/bulk`, `/projects/{id}/versions/compare/summary`
  - Export/Import: `/projects/{id}/export`, `/projects/{id}/import`
  - Graphs: `/projects/{id}/graph`, `/projects/{id}/graphs`, `/projects/{id}/graphs/{id}/diff`, `/projects/{id}/graphs/{id}/report`, `/projects/{id}/graphs/{id}/snapshot`, `/projects/{id}/graphs/{id}/validate`
  - Execution Config: `/projects/{id}/execution-config`, `/projects/{id}/executions`
  - Advanced Search: `/projects/{id}/search/advanced`
  - Statistics: Coverage stats, problems stats, processes stats, test-cases stats, test-runs stats, test-suites stats, webhooks stats

---

### 2.2 Requirements Traceability

**Features:** Items, Links, Coverage, Features, Contracts, ADRs

- **Items** (14 endpoints): Requirement definition, bulk updates, pivot views, metadata
- **Links** (10 endpoints): Bidirectional traceability, grouping
- **Coverage** (18 endpoints): Coverage analysis, gap identification, coverage matrix, verification
- **Features** (18 endpoints): Feature definition, scenarios, test case mapping
- **Contracts** (12 endpoints): Contract-to-requirement traceability
- **ADRs** (12 endpoints): Architecture decision traceability

**Combined**: 84 endpoints for core traceability workflows

---

### 2.3 Testing & Quality Management

**Features:** Test Cases, Test Runs, Test Suites, QA Metrics

- **Test Cases** (22 endpoints): CRUD, coverage linkage, approval workflow, deprecation, status transitions
- **Test Runs** (24 endpoints): Execution management, result recording, bulk operations, cancellation, completion
- **Test Suites** (20 endpoints): Suite management, test grouping, status workflow
- **QA Metrics** (12 endpoints): Coverage metrics, defect density, pass rates, execution history, flaky test detection

**Combined**: 78 endpoints for test and quality workflows

---

### 2.4 Graph Analysis & Visualization

**Features:** Graph Analysis, Impact Analysis, Dependency Analysis

- **Graph Analysis** (18 endpoints): Caching, centrality analysis, coverage, cycle detection, dependency resolution, impact analysis, metrics, shortest-path
- **Analysis** (14 endpoints): Dedicated analysis endpoints (cycles, gaps, health, reverse impact, trace matrix)

**Combined**: 32 endpoints for graph and impact analysis

---

### 2.5 Integration & Sync

**Features:** Integrations (GitHub, Linear), Webhooks, Sync

- **GitHub Integration** (20+ endpoints):
  - App management: Install URLs, installations, linking
  - Project linking: Auto-link, linked projects, unlinking
  - Repository browsing: Repos, issues retrieval
  - Webhook handling: GitHub webhook ingestion

- **Linear Integration** (8+ endpoints):
  - Teams, issues, project management

- **Webhooks** (22 endpoints):
  - CRUD for webhooks
  - Logs, status, secret regeneration
  - Inbound webhook handlers (GitHub, Linear, generic)

- **Sync** (managed endpoints):
  - Integration sync trigger, queue, status
  - Conflict resolution: List, resolve by ID

**Combined**: 60+ endpoints for integrations, webhooks, and sync

---

### 2.6 Authentication & Authorization

**Features:** Auth, CSRF, Accounts

- **Auth** (28 endpoints):
  - Session: Login, logout, logout-expired, verify, me
  - Token refresh: `/auth/refresh`
  - OAuth: Callback, revoke
  - Device auth: Code request, completion, token exchange
  - Signup

- **CSRF** (1 endpoint): Token generation for form submissions

- **Accounts** (6 endpoints): Account management, switching

**Combined**: 35 endpoints for auth and account management

---

### 2.7 AI & Agent Integration

**Features:** AI, MCP (Model Context Protocol), Agent

- **AI** (2 endpoints): `/ai/analyze`, `/ai/stream-chat` (streaming analysis)
- **MCP** (12 endpoints): Config, health, messages, SSE, tools
- **Agent** (10 endpoints): Sessions, execution, distributed operations coordination

**Combined**: 24 endpoints for AI and agent workflows

---

### 2.8 Advanced Features

**Blockchain** (16 endpoints):
- Version chains with immutability proofs
- Embeddings for specification validation
- Baseline snapshots

**Spec Analytics** (8 endpoints):
- ISO 29148 validation (requirements standard)
- EARS pattern detection (requirement writing patterns)
- Batch analysis

**Journeys** (6 endpoints):
- User flow mapping, call chains, data paths
- Visualization, detection

**Codex** (3 endpoints):
- Auth status, interactions, review capabilities (image/video)

**Temporal** (1 endpoint):
- Workflow engine summary

---

## Part 3: Test Coverage Analysis

### 3.1 Test File Inventory

| Test Type | Count | Coverage Area |
|-----------|-------|----------------|
| Python Unit Tests | 203 | Repositories, APIs, TUI, services, models, config |
| Go Unit Tests | 77 | API handlers, security, models |
| Go Integration Tests | 35 | Database, messaging, external services, workflows |
| Frontend E2E Tests | 53 | User workflows, navigation, security, accessibility |
| **Total** | **368** | Comprehensive multi-layer testing |

### 3.2 Feature Test Coverage Map

#### Python Testing

| Feature Area | Test Files | Coverage |
|--------------|-----------|----------|
| **Repositories** | 35 | Item, link, test-case, test-run, test-suite, problem, account, agent, event, process, etc. |
| **APIs** | 29 | HTTP endpoint testing, serialization, validation |
| **TUI** | 26 | Terminal UI widgets, apps, adapters |
| **Storage** | 12 | File operations, caching, adapters |
| **Services** | 10 | Business logic (items, links, imports, analytics) |
| **MCP** | 9 | Model Context Protocol testing |
| **Core** | 6 | Configuration, database, concurrency |
| **Models** | 6 | Data model validation, schema |
| **Algorithms** | 3 | Cycle detection, graph algorithms |
| **Database** | 2 | Connection, transactions |
| **Config** | 5 | Settings, validation, schema |
| **Agent** | 4 | Agent execution, coordination |
| **Utils/Validation** | 7 | Utilities, error handling |

**Subtotal Python: 155 tests**

#### Go Testing

| Feature Area | Test Files | Coverage |
|--------------|-----------|----------|
| **Integration** | 35 | Database, NATS, Redis, Python, security, events, workflows |
| **API Handlers** | 6 | Item, link, problem, project endpoints |
| **Security** | 7 | Auth, XSS, CSP, injection, rate limiting, headers |
| **E2E** | 15 | Comprehensive user flows |
| **Models** | As part of integration | Data structures |

**Subtotal Go: 63 tests**

#### Frontend Testing

| Feature Area | Test Files | Coverage |
|--------------|-----------|----------|
| **E2E (Playwright)** | 53 | Auth, navigation, items, graphs, sync, accessibility, security, performance |
| **Component Library** | 24+ | UI components (Button, Dialog, Tabs, Accordion, etc.) |
| **Visual Regression** | 4 | Themes, responsive, pages, components |
| **State Management** | 1 | Zustand store testing |
| **API Client** | 1 | HTTP client testing |

**Subtotal Frontend: 150+ tests**

### 3.3 Test Coverage by Feature Area

#### High Coverage (>10 test files)
- Repositories: 35 tests ✓
- Integration (Go): 35 tests ✓
- APIs: 29 tests ✓
- TUI: 26 tests ✓
- E2E (Frontend): 15+ tests ✓
- Security (Go): 7 tests ✓

#### Medium Coverage (3-10 test files)
- Storage: 12 tests
- Services: 10 tests
- MCP: 9 tests
- Components: 8+ tests
- Config: 5 tests

#### Low/Gap Coverage (<3 test files)
- Documentation search/retrieval
- Advanced analytics features
- Some integration-specific features
- Distributed operation coordination
- Blockchain/immutability features

---

## Part 4: Gap Analysis

### 4.1 Endpoint Coverage Gaps

| Feature | Total Endpoints | Estimated Test Coverage | Gap |
|---------|-----------------|------------------------|-----|
| Projects | 98 | Medium (project mgmt tested) | Version compare, execution config |
| Integrations | 60 | Medium (GitHub, Linear, webhooks core) | OAuth, conflict resolution |
| Test Management | 66 | High (test-runs, test-cases, test-suites) | Bulk operations coverage |
| Graph Analysis | 32 | Medium (core analysis tested) | Advanced metrics, caching |
| Blockchain | 16 | Low/Unknown | Baseline, embeddings, immutability |
| Spec Analytics | 8 | Low | ISO 29148, EARS patterns |
| Journeys | 6 | Low | Detection, visualization |
| Codex | 3 | Unknown | Image/video review |
| Temporal | 1 | Medium | Workflow engine |

### 4.2 Feature Gaps Requiring Test Coverage

**Critical (widely used features with limited test files):**
1. Advanced search across projects
2. Distributed operation coordination
3. Conflict resolution in integrations
4. Blockchain/immutability verification
5. Specification analytics (ISO 29148, EARS)

**Medium Priority (specialized features):**
1. Codex image/video review
2. Journey detection algorithms
3. Advanced graph metrics
4. Webhook event delivery guarantee

**Low Priority (edge cases):**
1. Performance under high concurrency
2. Error recovery in sync operations
3. Cache invalidation strategies

---

## Part 5: Feature Documentation

### 5.1 Primary Feature Pillars

#### 1. **Requirements Traceability** (Foundation)
- Bidirectional linking between requirements, code, tests, and deployments
- Impact analysis and dependency tracking
- Coverage matrix and gap analysis
- Supported by: Items, Links, Coverage, Contracts, ADRs, Features

#### 2. **Project Management** (Container)
- Multi-project workspace
- Project versioning with comparison
- Export/import for data portability
- Graph-based visualization
- Supported by: Projects, Graphs, Workflows

#### 3. **Testing & Quality** (Quality Gate)
- Test case definition and management
- Test run execution and result tracking
- Quality metrics (pass rate, defect density, flaky tests)
- Traceability to requirements
- Supported by: Test Cases, Test Runs, Test Suites, QA Metrics

#### 4. **External Integration** (Ecosystem)
- GitHub project and issue synchronization
- Linear issue tracking
- Webhook-based event notification
- OAuth for secure authentication
- Supported by: Integrations, Webhooks, OAuth

#### 5. **Graph Analysis** (Intelligence)
- Dependency graph visualization
- Impact analysis (forward and reverse)
- Cycle detection and path finding
- Centrality and metrics calculation
- Supported by: Graph Analysis, Impact Analysis, Algorithms

#### 6. **AI & Automation** (Augmentation)
- AI-powered analysis (chat, analyze)
- Agent-driven coordination
- Model Context Protocol (MCP) for tool integration
- Temporal workflow automation
- Supported by: AI, MCP, Agent, Temporal

#### 7. **Data Integrity** (Governance)
- Blockchain-backed immutability for critical data
- Version chains with cryptographic verification
- Specification embeddings
- Baseline snapshots
- Supported by: Blockchain, Immutability Proofs

---

## Part 6: Architecture Insights

### 6.1 API Distribution

```
Gateway (333 endpoints)
├── Go API (83 endpoints) [25%]
│   ├── Graph analysis
│   ├── Distributed operations
│   ├── Core authentication
│   └── High-performance operations
│
└── Python API (256 endpoints) [77%]
    ├── Item/Link management
    ├── Test management
    ├── Integration handling
    ├── AI/ML services
    └── Advanced analytics
```

### 6.2 Feature Complexity (by endpoint count)

**Very Complex (50+ endpoints):**
- Projects (98)
- Integrations (60)

**Complex (15-50 endpoints):**
- Auth (28), Test Runs (24), Problems (22), Test Cases (22), Webhooks (22), Processes (20), Test Suites (20), Graph (18), Features (18), Coverage (18)

**Moderate (8-15 endpoints):**
- Blockchain (16), Items (14), Analysis (14), Workflows (14), Docs (12), ADRs (12), Contracts (12), MCP (12), QA (12), Agent (10), Links (10)

**Simple (<8 endpoints):**
- Spec Analytics (8), Executions (8), Journeys (6), Notifications (6), Accounts (6)

### 6.3 HTTP Method Usage

| Method | Count | % | Primary Use |
|--------|-------|---|------------|
| GET | 315 | 47% | Data retrieval, listing, searching |
| POST | 251 | 37% | Creation, complex operations, streaming |
| DELETE | 58 | 9% | Resource deletion, cleanup |
| PUT | 46 | 7% | Updates, replacements |
| OPTIONS | 2 | 0.3% | CORS preflight |

**Pattern**: Heavy read operations (GET 47%) + mutation operations (POST 37%), minimal full replacements (PUT 7%)

---

## Part 7: Testing Strategy Assessment

### 7.1 Testing Pyramid

```
Layers (estimated distribution):
├── E2E/Integration    [150+ tests] ← 41% | User workflows, critical paths
├── API/Service Tests  [100+ tests] ← 27% | Business logic, scenarios
├── Unit Tests         [118+ tests] ← 32% | Utilities, algorithms, models
```

### 7.2 Test Coverage Strengths

1. **Repository Layer**: 35 test files covering all data access patterns
2. **API Integration**: 29+ test files for endpoint behavior
3. **Security**: 7 dedicated test files (auth, XSS, CSP, injection, rate limiting)
4. **User Workflows**: 53 E2E tests covering navigation, auth, core features
5. **Concurrency**: Dedicated tests for async, database transactions, concurrency patterns

### 7.3 Test Coverage Weaknesses

1. **Graph Operations**: Core feature, medium test coverage
2. **Blockchain/Immutability**: 16 endpoints, no dedicated test files
3. **Specification Analytics**: 8 endpoints (ISO 29148 validation), minimal coverage
4. **Advanced Integration Scenarios**: Conflict resolution, complex sync workflows
5. **Performance/Load Testing**: Limited load test coverage relative to 672 endpoints
6. **MCP/Agent Coordination**: 22 combined endpoints, 9-10 test files

---

## Part 8: Functional Requirements Summary

### 8.1 Tier 1: Core Requirements (Must Have)

| Feature | Endpoints | Status | Tests |
|---------|-----------|--------|-------|
| User authentication & authorization | 28 | Implemented | ✓ |
| Project CRUD and management | 98 | Implemented | ✓ |
| Requirements traceability (items, links) | 24 | Implemented | ✓ |
| Test case and test run management | 46 | Implemented | ✓ |
| Graph visualization and analysis | 32 | Implemented | ✓ |
| GitHub/Linear integration | 28 | Implemented | ✓ |

### 8.2 Tier 2: Advanced Requirements (Should Have)

| Feature | Endpoints | Status | Tests |
|---------|-----------|--------|-------|
| Advanced impact and dependency analysis | 14 | Implemented | ✓ |
| Webhook-based event delivery | 22 | Implemented | ✓ |
| QA metrics and dashboards | 12 | Implemented | Partial |
| Workflow automation | 14 | Implemented | Partial |
| AI-powered analysis and chat | 2 | Implemented | Limited |
| Process versioning and execution | 20 | Implemented | Limited |

### 8.3 Tier 3: Specialized Requirements (Nice to Have)

| Feature | Endpoints | Status | Tests |
|---------|-----------|--------|-------|
| Blockchain-backed immutability | 16 | Implemented | Missing |
| Specification analytics (ISO 29148) | 8 | Implemented | Missing |
| Agent-driven coordination | 10 | Implemented | Limited |
| Journey/flow mapping | 6 | Implemented | Limited |
| Codex (image/video review) | 3 | Implemented | Unknown |
| Temporal workflow engine | 1 | Implemented | Partial |

---

## Part 9: Recommendations

### 9.1 Testing Enhancements

**Priority 1: Critical Gap Closure**
1. Add dedicated test suite for blockchain/immutability features (16 endpoints)
2. Create integration tests for specification analytics (8 endpoints, ISO 29148 validation)
3. Expand conflict resolution testing in integration workflows
4. Add load testing for high-concurrency scenarios

**Priority 2: Coverage Expansion**
1. Increase MCP and agent coordination tests (22 endpoints, 9-10 current tests)
2. Add journey detection and visualization tests (6 endpoints)
3. Expand advanced search testing across all project features
4. Create performance benchmarks for graph operations

**Priority 3: Edge Case & Error Path**
1. Add error handling tests for Codex features
2. Expand webhook delivery guarantee testing
3. Add recovery tests for sync/integration failures
4. Create chaos testing for distributed operations

### 9.2 Documentation Improvements

1. Create feature-specific API guides (one per 15+ endpoint feature area)
2. Document integration workflows with step-by-step examples
3. Add runbooks for common troubleshooting scenarios
4. Create architecture decision records (ADRs) for complex features

### 9.3 Code Quality

1. Maintain test-to-endpoint ratio of 1:2 (currently 368 tests / 672 endpoints = 1:1.8)
2. Establish per-feature test coverage thresholds (e.g., 80% for critical features)
3. Automate gap detection in CI/CD pipeline
4. Create test template library for new feature development

---

## Appendix: Complete Feature List

### A.1 All 30+ Feature Areas

1. **Projects** - Workspace, versioning, export/import
2. **Integrations** - GitHub, Linear, OAuth flows
3. **Auth** - Login, OAuth, device auth, token management
4. **Test Runs** - Execution, result tracking
5. **Problems** - Issue tracking, RCA, status
6. **Test Cases** - Definition, approval, coverage
7. **Webhooks** - Event delivery, inbound handlers
8. **Processes** - Versioning, execution
9. **Test Suites** - Grouping, status management
10. **Graph** - Analysis, visualization, validation
11. **Features** - Feature definition, scenarios
12. **Coverage** - Gap analysis, traceability matrix
13. **Blockchain** - Immutability, embeddings
14. **Items** - Requirements, metadata
15. **Analysis** - Impact, cycles, health, paths
16. **Workflows** - Automation, triggers
17. **Docs** - Search, retrieval
18. **ADRs** - Architecture decisions
19. **Contracts** - Contract traceability
20. **MCP** - Model Context Protocol tools
21. **QA Metrics** - Quality dashboards
22. **Agent** - Coordination, sessions
23. **Links** - Bidirectional traceability
24. **Spec Analytics** - ISO 29148, EARS
25. **Executions** - Workflow execution
26. **Journeys** - User flows, call chains
27. **Notifications** - Event notifications
28. **Accounts** - Account management
29. **Distributed Operations** - Multi-agent coordination
30. **Equivalences** - Concept mapping (Go API)

### A.2 OpenAPI Specification Files

- **Gateway:** `/openapi/gateway-api.json` (333 endpoints)
- **Go Backend:** `/openapi/go-api.json` (83 endpoints)
- **Python Services:** `/openapi/python-api.json` (256 endpoints)

### A.3 Test Directory Structure

```
tests/
├── unit/
│   ├── repositories/     (35 tests)
│   ├── api/              (29 tests)
│   ├── tui/              (26 tests)
│   ├── services/         (10 tests)
│   ├── mcp/              (9 tests)
│   ├── storage/          (12 tests)
│   └── ... (other areas)
│
backend/tests/
├── integration/          (35 tests)
├── security/             (7 tests)
└── ... (unit and e2e)

frontend/
├── apps/web/e2e/         (53 tests)
├── packages/ui/__tests__/ (24+ tests)
└── ... (other components)
```

---

## Document Metadata

**Generated by:** Functional Requirements Extraction Analysis
**Data Source:** OpenAPI specs, test file structure, documentation
**Last Updated:** 2026-02-11
**Related Documents:**
- `/docs/guides/` - Implementation guides
- `/docs/research/` - Technical research
- `/README.md` - Main project documentation
- `/backend/` - Go backend implementation
- `/frontend/` - TypeScript frontend implementation
- `/src/tracertm/` - Python services

---
