# Personal AI Infrastructure — Privacy Module

**Version**: v1.1.9 | **Status**: Active | **Last Updated**: March 2026

## Overview

The Privacy module provides metadata scrubbing ("Crumb Cleaning") and anonymous communication ("Mixnet Routing") for AI agent operations. It ensures that sensitive data does not leak through agent traces, logs, or network requests. Part of the Secure Cognitive Agent suite.

## PAI Capabilities

### Crumb Cleaning (Data Sanitization)

```python
from codomyrmex.privacy import CrumbCleaner

cleaner = CrumbCleaner()
# Scrub PII, API keys, tokens from agent output
# Remove tracking metadata from documents
# Sanitize log entries before persistence
```

### Mixnet Proxying (Anonymous Communication)

```python
from codomyrmex.privacy import MixnetProxy

proxy = MixnetProxy()
# Route API requests through anonymizing mixnets
# Strip identifying headers and metadata
# Prevent correlation of agent requests
```

### CLI Integration

```python
from codomyrmex.privacy import cli_commands

commands = cli_commands()
# Available: scan (detect privacy issues), report (generate privacy report)
```

## Key Exports

| Export | Type | Purpose |
|--------|------|---------|
| `CrumbCleaner` | Class | PII and metadata scrubbing engine |
| `MixnetProxy` | Class | Anonymous communication proxy |
| `cli_commands` | Function | CLI commands for privacy scanning and reporting |

## PAI Algorithm Phase Mapping

| Phase | Privacy Contribution |
|-------|----------------------|
| **OBSERVE** | Scan codebase and agent traces for data leaks |
| **EXECUTE** | Route sensitive API calls through mixnet proxies |
| **VERIFY** | Verify that agent outputs are free of PII and tracking metadata |
| **LEARN** | Sanitize learning data before persistence to memory |

## Architecture Role

**Specialized Layer** — Part of the Secure Cognitive Agent suite (`identity`, `wallet`, `defense`, `market`, `privacy`). Consumed by `agents/`, `logging_monitoring/`, and `agentic_memory/`.

## MCP Tools

This module does not expose MCP tools directly. Access its capabilities via:
- Direct Python import: `from codomyrmex.privacy import ...`
- CLI: `codomyrmex privacy <command>`

## Navigation

- **Self**: [PAI.md](PAI.md)
- **Parent**: [../PAI.md](../PAI.md) — Source-level PAI module map
- **Root Bridge**: [../../../PAI.md](../../../PAI.md) — Authoritative PAI system bridge doc
- **Siblings**: [README.md](README.md) | [AGENTS.md](AGENTS.md) | [SPEC.md](SPEC.md) | [API_SPECIFICATION.md](API_SPECIFICATION.md)
