arela/CODEBASE_OVERVIEW.md

AI-powered CTO with multi-agent orchestration, code summarization, visual testing (web + mobile) for blazing fast development.

# Arela Codebase Overview & Architecture

## Executive Summary

Arela v3.7.0 is an **AI-powered CTO platform** currently in Phase 1 (Foundation) with a vision to transform into a complete codebase analysis and autonomous refactoring system. The codebase is well-structured with clear separation of concerns, using TypeScript, SQLite for graph storage, and a modular architecture supporting multi-agent orchestration.

**Current Status:** Phase 1 Complete ✅ | Phase 2 (v3.8.0) In Progress - Slice Detection

---

## 1. Overall Structure of src/ Directory

```
src/
├── analyze/              # Phase 1 - Architecture analysis (multi-repo, coupling, cohesion)
│   ├── architecture.ts   # Main architecture analyzer
│   ├── coupling.ts       # Coupling score calculation
│   ├── cohesion.ts       # Cohesion score calculation
│   ├── multi-repo.ts     # Cross-repo analysis
│   ├── patterns.ts       # Pattern detection
│   ├── types.ts          # Architecture types & interfaces
│   └── reporter.ts       # Output formatting
│
├── ingest/               # Phase 1 - Codebase ingestion (files → graph)
│   ├── index.ts          # Main orchestrator
│   ├── types.ts          # Data structures for ingestion
│   ├── file-scanner.ts   # Find files in repo
│   ├── static-analyzer.ts # TypeScript AST analysis
│   ├── universal-analyzer.ts # Language-agnostic regex parsing
│   ├── graph-builder.ts  # Build dependency graph
│   └── storage.ts        # SQLite GraphDB interface
│
├── memory/               # Phase 1 - Tri-Memory System
│   ├── index.ts          # Unified memory interface
│   ├── types.ts          # Memory data structures
│   ├── graph.ts          # Graph memory (queries dependency graph)
│   ├── vector.ts         # Vector memory (RAG wrapper)
│   ├── audit.ts          # Governance log (SQLite)
│   └── cli.ts            # Memory CLI commands
│
├── agents/               # Agent orchestration & discovery
│   ├── discovery.ts      # Find installed AI agents
│   ├── orchestrate.ts    # Run tickets with multi-agent support
│   ├── dispatch.ts       # Route work to appropriate agent
│   └── status.ts         # Show ticket execution status
│
├── flow/                 # Flow analysis & tracing (v3.5.0)
│   ├── analyzer.ts       # Analyze function call flows
│   ├── tracer.ts         # Trace execution flows
│   ├── standards.ts      # Flow patterns
│   └── reporter.ts       # Flow analysis reporting
│
├── analyze/              # Old analysis module (legacy)
│   └── [files from Phase 1]
│
├── tickets/              # Ticket parsing & management
│   ├── parser.ts         # Parse .md/.yaml tickets
│   ├── schema.ts         # Ticket validation
│   └── auto-generate.ts  # Generate tickets from prompts
│
├── rag/                  # Semantic search (vector DB wrapper)
│   ├── index.ts          # Main RAG interface
│   └── server.ts         # RAG server
│
├── utils/                # Utilities
│   ├── progress.ts       # Progress bars
│   ├── schema.ts         # Zod schemas
│   ├── cli-personality.ts # CLI messaging styles
│   ├── structure-validator.ts # Project validation
│   ├── auto-index.ts     # Incremental RAG indexing
│   └── ragignore.ts      # RAG ignore patterns
│
├── mcp/                  # Model Context Protocol (Windsurf integration)
│   └── server.ts         # MCP server implementation
│
├── persona/              # AI persona/rules system
│   ├── loader.ts         # Load persona rules
│   └── templates/        # Rule templates
│
├── run/                  # Test execution (web & mobile)
│   ├── web.ts            # Web app testing
│   ├── mobile.ts         # Mobile app testing
│   ├── flows.ts          # User flow definitions
│   ├── reporter.ts       # Test reporting
│   └── pilot.ts          # AI pilot (autonomous testing)
│
├── generate/             # Code generation
│   └── flow-generator.ts # Generate test flows from AI
│
├── cli.ts                # Main CLI (Commander.js)
├── index.ts              # Programmatic exports
└── types.ts              # Core type definitions
```

### Directory Organization Summary

| Directory | Purpose | Phase | Status |
|-----------|---------|-------|--------|
| `ingest/` | Parse files → Graph DB | Phase 1 | ✅ Complete |
| `memory/` | Tri-Memory System (Vector/Graph/Audit) | Phase 1 | ✅ Complete |
| `analyze/` | Architecture analysis (coupling/cohesion) | Phase 1 | ✅ Complete |
| `flow/` | Function call flow analysis | Phase 1 | ✅ Complete |
| `agents/` | Multi-agent orchestration | Phase 1 | ✅ Complete |
| `run/` | Test execution (web/mobile) | Phase 1 | ✅ Complete |
| `detect/` | **Slice detection (NEW)** | Phase 2 | 🚧 To Build |

---

## 2. Graph DB Implementation (SQLite)

### Current Status
✅ **Fully Implemented** in `src/ingest/storage.ts`

### Database Location
```
.arela/memory/graph.db  # SQLite database (WAL mode)
```

### Database Schema (8 Tables)

```sql
1. files
   - id, path, repo, type, lines
   - index: repo, type
   - tracks: every file in the codebase

2. functions
   - id, name, file_id, line_start, line_end, is_exported
   - index: file_id, name
   - tracks: function definitions

3. imports
   - id, from_file_id, to_file_id, to_module, import_type, imported_names, line_number
   - index: from_file_id, to_file_id
   - tracks: import relationships

4. function_calls
   - id, caller_function_id, callee_function_id, callee_name, line_number
   - index: caller_function_id, callee_function_id
   - tracks: function→function calls

5. api_endpoints
   - id, method, path, file_id, function_id, line_number
   - index: file_id, method+path
   - tracks: REST endpoints defined

6. api_calls
   - id, method, url, file_id, line_number
   - index: file_id, method+url
   - tracks: API calls made

7. audit_log (governance)
   - id, timestamp, agent, action, result, metadata
   - tracks: decision audit trail

8. vector_index (wrapped by vector.ts)
   - Semantic embeddings for RAG
```

### GraphDB Class Interface

```typescript
class GraphDB {
  // Initialization
  constructor(dbPath: string)
  private initSchema()

  // File operations
  addFile(file: FileNode): number
  getFileId(filePath: string): number | null

  // Function operations
  addFunction(fileId: number, func: FunctionNode): number
  getFunctionId(fileId: number, functionName: string): number | null

  // Dependency tracking
  addImport(fromFileId, toFileId, toModule, importType, names, line)
  addFunctionCall(callerFunctionId, calleeId, calleeName, line)

  // API tracking
  addApiEndpoint(endpoint: ApiEndpoint)
  addApiCall(fileId: number, call: ApiCall)

  // Querying
  query(sql: string, params: any[]): any[]
  getSummary(): { filesCount, functionsCount, importsCount, ... }

  // Transactions
  beginTransaction()
  commit()
  rollback()

  // Utilities
  close()
  clear()
}
```

### Example Queries Available

```typescript
// Find files that depend on a file
SELECT f.path FROM imports i
JOIN files f ON f.id = i.from_file_id
WHERE i.to_file_id = ?

// Find functions called by a function
SELECT f.name, f2.path FROM function_calls fc
JOIN functions f ON f.id = fc.caller_function_id
JOIN functions f2 ON f2.id = fc.callee_function_id
WHERE fc.caller_function_id = ?

// Find API endpoints in a file
SELECT method, path FROM api_endpoints
WHERE file_id = ?
```

### Data Types Stored

```typescript
// From src/ingest/types.ts
FileNode {
  path: string                    // relative path
  repoPath: string                // absolute repo path
  type: FileType                  // component|service|controller|util|hook|type|config|other
  lines: number
  imports?: ImportInfo[]
  exports?: ExportInfo[]
  functions?: FunctionNode[]
  apiCalls?: ApiCall[]
}

ImportInfo {
  from: string                    // module/file
  names: string[]                 // [imports]
  type: 'default'|'named'|'namespace'
  line: number
}

FunctionNode {
  name: string
  fileId: number
  lineStart: number
  lineEnd: number
  isExported: boolean
  calls?: number[]                // IDs of called functions
  calledBy?: number[]
}

ApiCall {
  method: string                  // GET, POST, etc.
  url: string
  line: number
}
```

---

## 3. CLI Structure & Command Registration

### Framework
- **Library:** `commander.js` v12.0.0
- **File:** `src/cli.ts` (700+ lines)
- **Pattern:** Commander.js program with subcommands

### CLI Commands Registered

```
arela agents                      # List discovered AI agents
arela init                        # Initialize project setup
arela orchestrate                 # Run tickets with multi-agent
arela run [web|mobile]            # Test execution
arela status                      # Show ticket status
arela doctor                      # Validate project structure
arela index                       # Build RAG index
arela auto-index                  # Incremental RAG update
arela install-hook                # Install git auto-index hook
arela uninstall-hook              # Remove git hook
arela analyze [flow|architecture] # Code analysis
arela ingest [codebase]           # Ingest files → graph
arela mcp                         # Start MCP server
arela memory [init|query|impact|audit|status] # Tri-Memory commands
```

### Command Registration Pattern

```typescript
// Example from cli.ts
program
  .command("agents")
  .description("Discover and list available AI agents")
  .option("--verbose", "Show detailed information", false)
  .action(async (opts) => {
    const agents = await discoverAgents();
    // Handle command
  });

// For complex commands with dynamic handlers:
export class UnsupportedPlatformError extends Error {
  constructor(public readonly platform: string) {
    super(`Platform "${platform}" not supported.`);
  }
}

export function buildRunCommand(
  programInstance: Command,
  handler: RunCommandHandler = handleRunCommand
): Command {
  return programInstance
    .command("run")
    .description("Run and test your app")
    .argument("<platform>", "Platform: web or mobile")
    .option("--url <url>", "URL for web apps")
    .action(async (platformArg, opts) => {
      try {
        await handler(platformArg, opts);
      } catch (error) {
        if (error instanceof UnsupportedPlatformError) {
          console.error(error.message);
          process.exit(1);
        }
      }
    });
}
```

### Programmatic Usage

All CLI commands are exported for programmatic use:

```typescript
// Exported from src/index.ts
export * from './agents/discovery.js'
export * from './agents/orchestrate.js'
export * from './tickets/parser.js'
export * from './memory/index.js'
```

Usage example:
```typescript
import { discoverAgents, orchestrate } from 'arela';

const agents = await discoverAgents();
await orchestrate({
  cwd: process.cwd(),
  parallel: true,
  tickets: ['CODEX-001', 'CLAUDE-002']
});
```

---

## 4. Types & Interfaces

### Core Domain Types

```typescript
// src/types.ts - Core types
export type AgentName = 'codex' | 'claude' | 'deepseek' | 'ollama' | 'cascade'
export type TicketPriority = 'low' | 'medium' | 'high' | 'critical'
export type TicketComplexity = 'simple' | 'medium' | 'complex'
export type TicketStatus = 'pending' | 'in_progress' | 'completed' | 'failed' | 'blocked'

export interface Ticket {
  id: string
  title: string
  description: string
  agent: AgentName
  priority: TicketPriority
  complexity: TicketComplexity
  status: TicketStatus
  estimatedTime?: string
  estimatedCost?: number
  dependencies?: string[]
  tags?: string[]
  files?: Array<{ path: string; action: 'create'|'modify'|'delete' }>
  acceptance?: Array<{ id: string; description: string; status: 'pending'|'passed'|'failed' }>
}

export interface DiscoveredAgent {
  name: string
  command: string
  available: boolean
  type: 'cloud' | 'local' | 'ide'
  version?: string
}
```

### Graph & Import Types

```typescript
// src/ingest/types.ts
export interface FileNode {
  path: string
  repoPath: string
  type: FileType  // component|service|controller|util|hook|type|config|other
  lines: number
  imports?: ImportInfo[]
  exports?: ExportInfo[]
  functions?: FunctionNode[]
  apiCalls?: ApiCall[]
}

export interface ImportInfo {
  from: string
  names: string[]
  type: 'default' | 'named' | 'namespace'
  line: number
}

export interface FunctionNode {
  id?: number
  name: string
  fileId?: number
  filePath?: string
  isExported: boolean
  lineStart: number
  lineEnd: number
  calls?: number[]
  calledBy?: number[]
}

export interface FunctionCall {
  callerId: number
  calleeId: number
  line: number
}

export interface ApiEndpoint {
  method: string      // GET, POST, PUT, DELETE
  path: string
  fileId: number
  functionId?: number
  line: number
}

export interface ApiCall {
  method: string
  url: string
  line: number
  filePath?: string
}

export interface CodebaseMap {
  summary: {
    filesScanned: number
    importsFound: number
    functionsDefined: number
    apiCallsFound: number
  }
  stats: {
    modules: number
    components: number
    services: number
    apiEndpoints: number
  }
  dbPath: string
  duration: number
}
```

### Memory System Types

```typescript
// src/memory/types.ts
export interface DependencyEdge {
  file: string
  reason: string                // e.g., "imports, default export"
  weight: number                // number of import relationships
}

export interface ImpactAnalysis {
  file: string
  exists: boolean
  upstream: DependencyEdge[]    // files that import this
  downstream: DependencyEdge[]  // files this imports
  fanIn: number                 // total upstream dependency weight
  fanOut: number                // total downstream dependency weight
}

export interface GraphStats {
  ready: boolean
  files: number
  imports: number
  functions: number
  functionCalls: number
  apiEndpoints: number
  apiCalls: number
  dbPath: string
}

export interface AuditEntry {
  timestamp?: string
  agent: string
  action: string
  inputHash?: string
  outputHash?: string
  result: 'success' | 'failure' | 'pending'
  metadata?: Record<string, unknown>
  commitHash?: string
  ticketId?: string
  policyViolations?: unknown[]
}

export interface MemoryQueryResult {
  question: string
  semantic: SemanticResult[]     // from vector DB (RAG)
  relatedFiles: string[]         // from graph DB
  timestamp: string
}

export interface TriMemoryStats {
  vector: VectorStats
  graph: GraphStats
  audit: AuditStats
}
```

### Architecture Analysis Types

```typescript
// src/analyze/types.ts
export type ArchitectureType = 'horizontal' | 'vertical' | 'hybrid'

export interface ArchitectureScore {
  horizontal: number              // 0-100
  vertical: number                // 0-100
}

export interface CouplingCohesionScores {
  coupling: number                // 0-100 (lower is better)
  cohesion: number                // 0-100 (higher is better)
}

export interface RepoAnalysis {
  name: string
  path: string
  architecture: ArchitectureType
  scores: ArchitectureScore
  metrics: CouplingCohesionScores
  directories: DirectoryAnalysis[]
  issues: ArchitectureIssue[]
}

export interface DirectoryAnalysis {
  path: string
  type: DirectoryType             // layer|feature|module|other
  fileCount: number
  internalImports: number         // within directory
  externalImports: number         // from outside
  importedBy: number              // reverse imports
}

export interface ArchitectureIssue {
  severity: 'critical' | 'warning' | 'info'
  title: string
  description: string
  affectedFiles?: number
  affectedDirs?: string[]
  recommendation?: string
}

export interface ArchitectureReport {
  timestamp: string
  repositories: RepoAnalysis[]
  overallArchitecture: ArchitectureType
  overallScores: ArchitectureScore
  globalMetrics: CouplingCohesionScores
  issues: ArchitectureIssue[]
  apiDrift: ApiDrift[]
  recommendations: string[]
  effort?: {
    estimated: string             // "8-12 weeks"
    breakeven: string              // "14 months"
    roi3Year: number               // 380 for 380%
  }
}
```

---

## 5. Database System & Storage

### Primary Database: SQLite with better-sqlite3

**Package:** `better-sqlite3@^11.0.0`

**Location:** `.arela/memory/graph.db`

**Configuration:**
```typescript
this.db.pragma("journal_mode = WAL");      // Write-Ahead Logging (faster)
this.db.pragma("foreign_keys = ON");       // Enable foreign keys
```

### Storage Layers

```
┌─────────────────────────────────────────┐
│         Arela Memory System              │
├─────────────────────────────────────────┤
│                                         │
│  TriMemory (src/memory/index.ts)        │
│  ├── VectorMemory → RAG index           │
│  ├── GraphMemory  → graph.db            │
│  └── AuditMemory  → audit.db            │
│                                         │
├─────────────────────────────────────────┤
│                                         │
│  .arela/memory/                         │
│  ├── graph.db        (SQLite)           │
│  ├── audit.db        (SQLite)           │
│  └── vector/         (RAG embeddings)   │
│                                         │
└─────────────────────────────────────────┘
```

### Ingest Pipeline

```
Codebase
   ↓
scanDirectory (find files)
   ↓
analyzeFile (universal-analyzer or static-analyzer)
   ├── Extract imports
   ├── Extract functions
   ├── Extract API calls
   └── Extract exports
   ↓
buildGraph (graph-builder.ts)
   ├── Add files to DB
   ├── Add functions to DB
   ├── Resolve imports
   ├── Resolve function calls
   └── Add API endpoints/calls
   ↓
GraphDB (storage.ts)
   └── .arela/memory/graph.db
```

### Query Interface

```typescript
// Example: Find all files that import a specific file
const dependents = await queryGraph(
  repoPath,
  `SELECT f.path FROM imports i
   JOIN files f ON f.id = i.from_file_id
   WHERE i.to_file_id = (SELECT id FROM files WHERE path = ?)`,
  ['src/auth/login.ts']
);

// Example: Analyze impact of a file
const impact = await triMemory.impact('src/auth/login.ts');
// Returns: {
//   upstream: [{file: 'x', weight: 3, reason: 'imports'}, ...],
//   downstream: [{file: 'y', weight: 2, reason: 'imports'}, ...],
//   fanIn: 5, fanOut: 2
// }
```

---

## 6. Phase 1 Implementation Status ✅

### Completed Features

#### 1.1 Multi-Repo Architecture Analyzer
- **File:** `src/analyze/architecture.ts`
- **Status:** ✅ Complete
- **Capabilities:**
  - Analyzes single & multiple repositories
  - Detects architecture type (horizontal/vertical/hybrid)
  - Calculates coupling/cohesion scores (0-100)
  - Identifies architectural issues
  - Recommends VSA migration path
  - Calculates effort/ROI estimates
- **CLI:**
  ```bash
  arela analyze architecture /mobile /backend
  ```

#### 1.2 Universal Codebase Ingestion
- **Files:** `src/ingest/*`
- **Status:** ✅ Complete
- **Capabilities:**
  - Supports 15+ programming languages
  - Language-agnostic regex parsing
  - Extracts imports, functions, API calls
  - Builds complete dependency graph
  - Stores in SQLite GraphDB
  - Fast: 3,585 files in 3.91s
- **Languages:** JS/TS, Python, Go, Rust, Ruby, PHP, Java, C#, C++, Swift, Kotlin
- **CLI:**
  ```bash
  arela ingest codebase
  arela ingest codebase --refresh --analyze
  ```

#### 1.3 Tri-Memory System
- **Files:** `src/memory/*`
- **Status:** ✅ Complete
- **Three Types:**
  1. **Vector Memory** - Semantic RAG search
  2. **Graph Memory** - Structural dependencies
  3. **Audit Memory** - Governance log
- **CLI:**
  ```bash
  arela memory init
  arela memory query "authentication logic"
  arela memory impact src/auth/login.ts
  arela memory audit --ticket CODEX-001
  arela memory status
  ```

#### 1.4 Flow Analysis
- **Files:** `src/flow/*`
- **Status:** ✅ Complete
- **Capabilities:**
  - Analyze function call flows
  - Trace execution paths
  - Identify flow patterns
- **CLI:**
  ```bash
  arela analyze flow main --verbose
  ```

#### 1.5 Agent Discovery & Orchestration
- **Files:** `src/agents/*`
- **Status:** ✅ Complete
- **Capabilities:**
  - Discover installed AI agents (Claude, Codex, Ollama, etc.)
  - Route work to appropriate agent
  - Execute tickets with multi-agent orchestration
  - Show execution status
- **CLI:**
  ```bash
  arela agents --verbose
  arela orchestrate --parallel --max-parallel 5
  ```

---

## 7. Phase 2 Development Plan (v3.8.0) 🚧

### Feature 2.1: Autonomous Slice Boundary Detection (YOUR TASK)

**Location:** `src/detect/` (to be created)

**Ticket:** `.arela/tickets/claude/CLAUDE-001-v3.8.0-slice-detection.md`

**Algorithm:** Louvain Community Detection
- O(n log n) complexity
- Maximizes modularity
- Produces hierarchical communities
- Works on weighted graphs

**Expected Files:**
```
src/detect/
├── slices.ts          # Main detector interface
├── clustering.ts      # Louvain algorithm implementation
├── scoring.ts         # Cohesion/coupling scoring
└── review.ts          # Human approval workflow
```

**Expected CLI:**
```bash
arela detect slices
arela detect slices --repo /path/to/repo
arela detect slices /path/to/mobile /path/to/backend
arela detect slices --json slices.json
arela review slices
```

**Expected Output:**
```
Detected 4 optimal vertical slices:

1. authentication (23 files, cohesion: 87%)
2. workout (45 files, cohesion: 82%)
3. nutrition (31 files, cohesion: 79%)
4. social (28 files, cohesion: 75%)
```

**Data Required from Phase 1:**
- ✅ Graph DB (imports, functions, dependencies)
- ✅ File nodes and relationships
- ✅ Coupling/cohesion calculation helpers

### Feature 2.2: API Contract Generator

**Location:** `src/generate/contract.ts` (to be created)

**Capabilities:**
- Generate OpenAPI specs from code
- Validate specs against implementation
- Detect schema drift

**CLI:**
```bash
arela generate contract --from-code src/api/
arela validate contract openapi.yaml --against src/api/
```

---

## 8. Existing Infrastructure Supporting Slice Detection

### Available Graph Data

The Graph DB already contains:
- ✅ All file nodes with types (component, service, util, etc.)
- ✅ Import relationships with weights
- ✅ Function definitions and calls
- ✅ API endpoints and calls
- ✅ File-to-file dependency paths

### Available Analysis Functions

```typescript
// From src/memory/graph.ts - Can be reused:
await graphMemory.impact(filePath)          // Gets fan-in/fan-out
await graphMemory.findSlice(identifier)     // Finds related files

// From src/ingest/storage.ts - Can be reused:
db.query(sql, params)                       // Direct SQL access
db.getSummary()                             // Graph statistics

// From src/analyze/coupling.ts - Can be reused:
calculateCoupling()                         // Coupling metrics
calculateCohesion()                         // Cohesion metrics
```

### Utility Functions

```typescript
// Available utilities:
- picocolors for CLI output
- better-sqlite3 for database
- ts-morph for type extraction (already imported)
- fast-glob for file scanning
- fs-extra for file operations
```

### Pattern from Existing Code

The ingest module shows the pattern for handling graph data:
```typescript
// From src/ingest/graph-builder.ts
function buildGraph(analyses: FileAnalysis[], repoPath: string, db: GraphDB) {
  // Phase 1: Add all files
  // Phase 2: Resolve imports
  // Phase 3: Resolve function calls
  // Phase 4: Analyze relationships
}
```

Similar pattern should be used for slice detection.

---

## 9. Key Dependencies

```json
{
  "better-sqlite3": "^11.0.0",         // Graph DB
  "ts-morph": "^21.0.0",               // TypeScript AST
  "commander": "^12.0.0",              // CLI
  "picocolors": "^1.1.0",              // CLI colors
  "fast-glob": "^3.3.0",               // File scanning
  "fs-extra": "^11.2.0",               // File operations
  "zod": "^3.23.0",                    // Schema validation
  "yaml": "^2.4.0"                     // YAML parsing
}
```

No external ML libraries are used—implement Louvain yourself or use a lightweight algorithm.

---

## 10. Development Checklist

### For Phase 2 (Slice Detection Implementation)

- [ ] **Create slice detection module** (`src/detect/`)
  - [ ] `slices.ts` - Main public API
  - [ ] `clustering.ts` - Louvain algorithm
  - [ ] `scoring.ts` - Slice quality metrics
  - [ ] `types.ts` - Slice data structures

- [ ] **Extend CLI** (`src/cli.ts`)
  - [ ] `arela detect slices` command
  - [ ] `arela review slices` command
  - [ ] Support for `--json` export
  - [ ] Multi-repo support

- [ ] **Extend types** (`src/types.ts`)
  - [ ] Slice interfaces
  - [ ] Detection options
  - [ ] Recommendation types

- [ ] **Add integration tests**
  - [ ] Test on real codebase
  - [ ] Test multi-repo detection
  - [ ] Validate clustering quality

- [ ] **Update exports** (`src/index.ts`)
  - [ ] Export slice detection functions

### Building on Phase 1

The slice detection feature can directly leverage:
1. **GraphDB queries** - Import/dependency data already available
2. **Impact analysis** - Fan-in/fan-out calculations
3. **File nodes** - Types and metadata
4. **Coupling/cohesion** - Scoring algorithms from analyze/
5. **CLI patterns** - Command registration in cli.ts

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## Summary

Arela is a well-structured Node.js/TypeScript application with:

1. **Clear Module Separation:**
   - Ingestion (files → graph)
   - Memory (3-tier: vector/graph/audit)
   - Analysis (architecture, coupling, cohesion)
   - CLI (Commander.js)

2. **Solid Foundation (Phase 1 Complete):**
   - SQLite Graph DB with 8 tables
   - Universal codebase ingestion (15+ languages)
   - Tri-Memory system with 3 storage types
   - Multi-repo architecture analysis

3. **Ready for Phase 2:**
   - Graph data available for clustering
   - Coupling/cohesion algorithms exist
   - CLI patterns established
   - Type system in place

4. **Technology Stack:**
   - TypeScript with strict types
   - SQLite (better-sqlite3) for persistence
   - Commander.js for CLI
   - ts-morph for AST analysis
   - Zod for validation

**The codebase is production-ready and well-organized for the slice detection feature development.**