# Dana Language Reference

## File Extension
- **Correct Extension**: `.na` (not `.dana`)
- **Example**: `agent.na`, `tools.na`, `researcher.na`

## Official Repository
- **GitHub**: https://github.com/aitomatic/dana
- **Description**: Agent-native programming language for building fast, expert AI agents

## Key Concepts
- **Structs**: Data containers for agent states and knowledge
- **Resources**: Storage systems (local FS, databases)
- **Agent Blueprints**: Modular agent templates
- **Struct Functions**: Pure operations on data
- **Resource Functions**: Strict interactions with storage

## Integration Points
- **Runtime**: Python-compatible for embedding
- **Studio**: IDE for drafting agents and workflows
- **REPL**: Interactive testing environment
- **File Types**: `.na` files for agent logic and configurations