Goals and Requirements
High-Level Goals
Functional Goals
- Execute LLM-generated code in isolated environments
- Support multiple LLM providers (OpenAI, Anthropic, local models, etc.)
- Provide a plugin system for custom tools and integrations
- Enable both interactive and automated/batch execution modes
- Support persistent state and conversation history
Security Goals
- Sandboxed execution preventing host system access
- Network isolation for untrusted code
- Resource limits (CPU, memory, time)
- Comprehensive audit logging
- Fine-grained permission system
- Input/output sanitization
Non-Functional Goals
- Low latency for interactive use
- High throughput for batch processing
- Horizontal scalability
- Clear observability (metrics, tracing)
- Easy deployment (containerized, cloud-native)
Functional Requirements
| ID | Requirement | Priority |
|---|---|---|
| FR-01 | Execute user prompts through configurable LLM backends | Must |
| FR-02 | Parse and execute LLM-generated code/tool calls | Must |
| FR-03 | Support tool definitions (function calling schema) | Must |
| FR-04 | Maintain conversation state across sessions | Should |
| FR-05 | Plugin architecture for custom tools | Should |
| FR-06 | REST API for programmatic access | Should |
| FR-07 | WebSocket support for streaming responses | Could |
| FR-08 | Multi-tenant support | Could |
Security Requirements
| ID | Requirement | Priority |
|---|---|---|
| SR-01 | All code execution in isolated sandboxes (containers/WASM) | Must |
| SR-02 | Network egress control and filtering | Must |
| SR-03 | Resource quotas (CPU, memory, file system) | Must |
| SR-04 | Audit logging of all operations | Must |
| SR-05 | Secrets management with no exposure to executed code | Must |
| SR-06 | Input validation and sanitization | Must |
| SR-07 | Rate limiting and abuse prevention | Should |
| SR-08 | Cryptographic verification of tool outputs | Could |
Constraints
- Written in Rust (performance and safety)
- Open source under permissive license
- Compatible with modern container runtimes
- No external dependencies that compromise security auditing