# performance - Functional Specification

**Version**: v1.0.0 | **Status**: Active | **Last Updated**: February 2026

## Purpose

The `performance` module manages resource usage, caching, and lazy loading to ensure system responsiveness.

## Design Principles

- **Invisibility**: Optimization should not change functional behavior (e.g., cached results must be valid).
- **Instrumentation**: Metrics are collected via decorators (`@monitor`).

## Functional Requirements

1. **Lazy Loading**: Defer imports until needed.
2. **Caching**: Memoize expensive function calls.
3. **Profiling**: Track execution time.

## Interface Contracts

- `monitor_performance`: Decorator for tracking.
- `cache_manager`: Interface for set/get key-value pairs.

## Navigation

- **Human Documentation**: [README.md](README.md)
- **Technical Documentation**: [AGENTS.md](AGENTS.md)
- **Parent**: [../SPEC.md](../SPEC.md)

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## Detailed Architecture and Implementation

### Design Principles

1. **Strict Modularity**: Each component is isolated and communicates via well-defined APIs.
2. **Performance Optimization**: Implementation leverages lazy loading and intelligent caching to minimize resource overhead.
3. **Error Resilience**: Robust exception handling ensures system stability even under unexpected conditions.
4. **Extensibility**: The architecture is designed to accommodate future enhancements without breaking existing contracts.

### Technical Implementation

The codebase utilizes modern Python features (version 3.10+) to provide a clean, type-safe API. Interaction patterns are documented in the corresponding `AGENTS.md` and `SPEC.md` files, ensuring that both human developers and automated agents can effectively utilize these capabilities.

## Testing

```bash
uv run python -m pytest src/codomyrmex/tests/ -k performance -v
```
