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Add AGENTS.md with optimized guidance for AI agents
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‎AGENTS.md‎

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# AGENTS.md
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This file provides guidance to AI agents when working with code in this repository.
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## Project Overview
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Symfony AI monorepo with independent packages for AI integration in PHP applications. Each component in `src/` has its own composer.json, tests, and dependencies.
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## Architecture
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### Core Components
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- **Platform** (`src/platform/`): Unified AI platform interface (OpenAI, Anthropic, Azure, Gemini, VertexAI)
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- **Agent** (`src/agent/`): AI agent framework for user interaction and task execution
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- **Store** (`src/store/`): Data storage abstraction with vector database support
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- **MCP SDK** (`src/mcp-sdk/`): Model Context Protocol SDK for agent-tool communication
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### Integration Bundles
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- **AI Bundle** (`src/ai-bundle/`): Symfony integration for Platform, Store, and Agent
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- **MCP Bundle** (`src/mcp-bundle/`): Symfony integration for MCP SDK
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### Supporting Directories
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- **Examples** (`examples/`): Standalone usage examples
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- **Demo** (`demo/`): Full Symfony web application demo
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- **Fixtures** (`fixtures/`): Shared multi-modal test fixtures
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## Essential Commands
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### Testing
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```bash
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# Component-specific testing
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cd src/platform && vendor/bin/phpunit
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cd src/agent && vendor/bin/phpunit
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cd src/ai-bundle && vendor/bin/phpunit
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cd demo && vendor/bin/phpunit
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```
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### Code Quality
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```bash
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# Fix code style (always run after changes)
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vendor/bin/php-cs-fixer fix
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# Static analysis (component-specific)
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cd src/platform && vendor/bin/phpstan analyse
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```
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### Development Tools
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```bash
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# Link components for development
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./link /path/to/project
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# Run examples
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cd examples && php anthropic/chat.php
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# Demo application
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cd demo && symfony server:start
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```
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## Code Standards
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### PHP Conventions
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- Follow Symfony coding standards with `@Symfony` PHP CS Fixer rules
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- Use project-specific exceptions instead of global ones (`\RuntimeException`, `\InvalidArgumentException`)
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- Define array shapes for parameters and return types
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- Add `@author` tags to new classes
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- Always add newlines at end of files
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### Testing Guidelines
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- Use **PHPUnit 11+** with component-specific configurations
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- Prefer `MockHttpClient` over response mocking
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- Use `self::assert*` or `$this->assert*` in tests
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- No void return types for test methods
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- Leverage shared fixtures in `/fixtures` for multi-modal content
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- Always fix risky tests
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### Git & Commits
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- Never mention AI assistance in commits or PR descriptions
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- Sign commits with GPG
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- Use conventional commit messages
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### Variable Naming
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- Name MessageBus variables as `$bus` (not `$messageBus`)
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## Component Dependencies
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- Agent → Platform (AI communication)
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- AI Bundle → Platform + Agent + Store (integration)
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- MCP Bundle → MCP SDK (integration)
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- Store: standalone (often used with Agent for RAG)
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## Development Workflow
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1. Each `src/` component is independently versioned
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2. Use `@dev` versions for internal dependencies during development
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3. Run PHP-CS-Fixer after code changes
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4. Test component-specific changes in isolation
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5. Use monorepo structure for shared development workflow

‎demo/AGENTS.md‎

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# AGENTS.md
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AI agent guidance for the Symfony AI demo application.
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## Project Overview
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Symfony 7.3 demo showcasing AI integration with RAG, streaming chat, multimodal interactions, and MCP server functionality.
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## Architecture
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### Core Features
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- **Chat Systems**: Blog, YouTube, Wikipedia, Audio, Stream implementations
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- **Twig LiveComponents**: Real-time chat interfaces with Symfony UX
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- **AI Agents**: Multiple configured agents with different models and tools
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- **Vector Store**: ChromaDB integration for similarity search
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- **MCP Tools**: Model Context Protocol for extending agent capabilities
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### Technologies
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- Symfony 7.3 + UX (LiveComponent, Turbo, Typed)
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- OpenAI GPT-4o-mini + embeddings
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- ChromaDB vector database
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- FrankenPHP runtime
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## Essential Commands
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### Setup
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```bash
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# Start services
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docker compose up -d
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composer install
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echo "OPENAI_API_KEY='sk-...'" > .env.local
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# Initialize vector store
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symfony console app:blog:embed -vv
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symfony console app:blog:query
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# Start server
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symfony serve -d
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```
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### Testing
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```bash
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vendor/bin/phpunit
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vendor/bin/phpunit tests/SmokeTest.php
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```
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### Code Quality
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```bash
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vendor/bin/php-cs-fixer fix
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vendor/bin/phpstan analyse
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```
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### MCP Server
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```bash
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symfony console mcp:server
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# Test: {"method":"tools/list","jsonrpc":"2.0","id":1}
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```
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## Configuration
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### AI Setup (`config/packages/ai.yaml`)
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- **Agents**: blog, stream, youtube, wikipedia, audio
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- **Platform**: OpenAI integration
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- **Store**: ChromaDB vector store
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- **Indexer**: Text embedding model
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### Chat Pattern
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- `Chat` class: Message flow and session management
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- `TwigComponent` class: LiveComponent UI
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- Agent configuration in `ai.yaml`
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- Session storage with component keys
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## Development Notes
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- PHP 8.4+ with strict typing
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- OpenAI GPT-4o-mini default model
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- ChromaDB on port 8080
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- LiveComponents for real-time UI
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- Symfony DI and best practices

‎examples/AGENTS.md‎

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# AGENTS.md
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AI agent guidance for Symfony AI examples directory.
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## Project Overview
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Standalone examples demonstrating Symfony AI component usage across different platforms. Serves as reference implementations and integration tests.
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## Essential Commands
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### Setup
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```bash
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composer install
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../link # Link local AI components
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docker compose up -d # For store examples
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```
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### Running Examples
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```bash
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# Single example
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php openai/chat.php
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php openai/toolcall-stream.php -vvv
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# Batch execution
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./runner # All examples
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./runner openai mistral # Specific platforms
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./runner --filter=toolcall # Pattern filter
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```
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### Environment
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Configure API keys in `.env.local` (copy from `.env` template).
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## Architecture
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### Directory Structure
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- Platform directories: `openai/`, `anthropic/`, `gemini/`, etc.
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- `misc/`: Cross-platform examples
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- `rag/`: Retrieval Augmented Generation examples
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- `toolbox/`: Utility tools and integrations
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- `bootstrap.php`: Common setup for all examples
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### Patterns
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- Shared `bootstrap.php` setup
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- Consistent structure across platforms
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- Verbose output flags (`-vv`, `-vvv`)
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- Synchronous and streaming demos
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### Dependencies
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Uses `@dev` versions:
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- `symfony/ai-platform`
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- `symfony/ai-agent`
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- `symfony/ai-store`
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## Development Notes
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- Examples serve as integration tests
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- Runner executes in parallel for platform verification
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- Demonstrates both sync and async patterns
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- Platform-specific client configurations

‎src/agent/AGENTS.md‎

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# AGENTS.md
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AI agent guidance for the Agent component.
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## Component Overview
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Framework for building AI agents with user interaction and task execution. Built on Platform component with optional Store integration for memory.
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## Architecture
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### Core Classes
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- **Agent** (`src/Agent.php`): Main orchestration class
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- **AgentInterface**: Contract for implementations
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- **Chat** (`src/Chat.php`): High-level conversation interface
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- **Input/Output** (`src/Input.php`, `src/Output.php`): Pipeline data containers
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### Processing Pipeline
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- **InputProcessorInterface**: Input transformation contract
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- **OutputProcessorInterface**: Output transformation contract
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- Middleware-like processing chain
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### Key Features
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- **Memory** (`src/Memory/`): Conversation memory with embeddings
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- **Toolbox** (`src/Toolbox/`): Function calling capabilities
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- **Structured Output**: Typed response support
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- **Message Stores** (`src/Chat/MessageStore/`): Chat persistence
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## Essential Commands
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### Testing
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```bash
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vendor/bin/phpunit
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vendor/bin/phpunit tests/AgentTest.php
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vendor/bin/phpunit --coverage-html coverage/
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```
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### Code Quality
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```bash
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vendor/bin/phpstan analyse
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cd ../../.. && vendor/bin/php-cs-fixer fix src/agent/
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```
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## Processing Architecture
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### Pipeline Flow
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1. Input processors modify requests
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2. Platform processes request
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3. Output processors modify responses
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### Built-in Processors
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- **SystemPromptInputProcessor**: Adds system prompts
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- **ModelOverrideInputProcessor**: Runtime model switching
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- **MemoryInputProcessor**: Conversation context from memory
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### Memory Providers
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- **StaticMemoryProvider**: In-memory storage
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- **EmbeddingProvider**: Vector-based semantic memory (requires Store)
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### Tool Integration
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- Auto-discovery via attributes
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- Fault-tolerant execution
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- Event system for lifecycle management
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## Dependencies
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- **Platform component**: Required for AI communication
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- **Store component**: Optional for embedding memory
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- **Symfony**: HttpClient, Serializer, PropertyAccess, Clock
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## Testing Patterns
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- Use `MockHttpClient` over response mocking
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- Test processors independently
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- Use `/fixtures` for multimodal content
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- Prefer `self::assert*` in tests
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## Development Notes
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- Component is experimental (BC breaks possible)
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- Add `@author` tags to new classes
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- Use component-specific exceptions from `src/Exception/`
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- Follow `@Symfony` PHP CS Fixer rules

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