# Edge Computing - Functional Specification

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

## Purpose

Edge computing module providing edge node management, function deployment, and state synchronization for distributed edge systems.

## Functional Requirements

- Edge node discovery and management
- Function deployment with multiple strategies (Rolling, Blue-Green, Canary)
- State synchronization with delta support and conflict resolution
- Offline operation support
- Resource-aware scheduling and cluster rebalancing
- Advanced health monitoring with recovery recommendations

## Core Classes

| Class | Description |
|-------|-------------|
| `EdgeNode` | Edge node representation |
| `EdgeFunction` | Deployable edge function |
| `EdgeRuntime` | Function execution runtime |
| `EdgeCluster` | Cluster of edge nodes |
| `EdgeSynchronizer` | State sync manager |
| `EdgeMetrics` | Invocation metrics tracking |
| `InvocationRecord` | Single invocation record |
| `DeploymentManager` | Orchestrates multi-node function deployment |
| `EdgeScheduler` | Periodic job execution |
| `EdgeCache` | Local edge data caching |
| `HealthMonitor` | Failure detection and recovery suggestion |

## Key Functions

| Function | Description |
|----------|-------------|
| `EdgeRuntime.deploy(func)` | Deploy function to runtime |
| `EdgeCluster.rebalance_cluster()` | Move functions to optimize resource use |
| `EdgeCluster.auto_heal()` | Detect and mark stale nodes offline |
| `EdgeSynchronizer.update_local(data, is_delta)` | Update local state (full or partial) |
| `DeploymentManager.execute(plan)` | Execute a multi-node deployment |
| `EdgeScheduler.execute_tick(cluster)` | Run due scheduled jobs |

## Design Principles

1. **Offline First**: Work without connectivity
2. **Resource Aware**: Respect edge constraints
3. **Eventually Consistent**: Handle sync delays
4. **Secure**: Encrypted communication

## Navigation

- [README](README.md) | [AGENTS](AGENTS.md) | [PAI](PAI.md)

## Testing

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