# data/ - Functional Specification

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

## Purpose

Data storage layer with input and processed output directories.

## Functional Requirements

### FR-1: Input Data Storage

- Store source data files for analysis
- Support JSON structured data
- Maintain sample data for testing

### FR-2: Processed Output Storage

- Store intermediate pipeline results
- Cache computed analysis data
- Support pipeline re-runs with fresh state

## Data Formats

### sample_data.json Schema

```json
{
  "project": "string",
  "version": "string",
  "files": [
    {
      "path": "string",
      "type": "string",
      "lines": "number",
      "functions": "number",
      "classes": "number",
      "patterns": ["string"]
    }
  ],
  "metrics": {
    "total_lines": "number",
    "total_files": "number"
  }
}
```

## Navigation

- **Human Documentation**: [README.md](README.md)
- **Agent Coordination**: [AGENTS.md](AGENTS.md)
- **Parent**: [../README.md](../README.md)
