code-generation-agent

Code Generation Agent

🌍 Language / 言語: English | 日本語

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English

Overview

The Code Generation Agent is a Phase 4 component of the ae-framework that automatically generates implementation code from tests and specifications. It follows the TDD principle of writing minimal code to make tests pass, then refactoring for quality.

Features

Core Capabilities

1. Test-Driven Code Generation

   • Analyzes test files to understand requirements
   • Generates minimal implementation to pass tests
   • Supports multiple languages (TypeScript, JavaScript, Python, Go, Rust)

2. API Generation from OpenAPI

   • Creates complete API implementations from OpenAPI specs
   • Generates route handlers, models, and middleware
   • Supports multiple frameworks (Fastify, Express, Koa)

3. Design Pattern Application

   • Applies common design patterns (Singleton, Factory, Observer, etc.)
   • Refactors existing code to use patterns
   • Maintains code consistency

4. Performance Optimization

   • Identifies performance bottlenecks
   • Applies optimizations automatically
   • Provides before/after benchmarks

5. Security Enhancement

   • Adds authentication (JWT, OAuth, Basic)
   • Implements authorization (RBAC, ABAC)
   • Includes encryption and rate limiting

6. Database Layer Generation

   • Creates entities and repositories
   • Generates migrations
   • Supports multiple ORMs (TypeORM, Prisma, Sequelize)

Usage

As a Standalone Agent

import { CodeGenerationAgent } from './src/agents/code-generation-agent';

const agent = new CodeGenerationAgent();

// Generate code from tests
const result = await agent.generateCodeFromTests({
  tests: [
    {
      path: 'tests/calculator.test.ts',
      content: '...',
      type: 'unit'
    }
  ],
  language: 'typescript',
  architecture: {
    pattern: 'hexagonal'
  }
});

console.log('Generated files:', result.files);
console.log('Test coverage:', result.coverage);