openfeature

# OpenFeature SDK Integration

Vendor-agnostic feature flag SDK providing standardized API across languages and providers. Use when implementing feature flags, A/B testing, canary releases, or progressive rollouts with any feature flag backend.

## When to Use

**Automatic activation triggers:**
- User mentions "feature flags", "feature toggles", or "feature management"
- User asks about A/B testing or canary releases
- User wants to implement progressive rollouts
- Project has OpenFeature SDK dependencies
- User mentions OpenFeature, flagd, or vendor-agnostic flags

**Related skills:**
- `go-feature-flag` - Specific GO Feature Flag provider details
- `launchdarkly` - LaunchDarkly provider integration

## Core Concepts

### Architecture

```
┌─────────────────────────────────────────────────────────────┐
│                    Application Code                          │
├─────────────────────────────────────────────────────────────┤
│                  OpenFeature SDK (API)                       │
│  ┌─────────────┬──────────────┬─────────────┬─────────────┐ │
│  │  getBool()  │  getString() │  getNumber()│  getObject()│ │
│  └─────────────┴──────────────┴─────────────┴─────────────┘ │
├─────────────────────────────────────────────────────────────┤
│                       Provider                               │
│  ┌─────────────────────────────────────────────────────────┐ │
│  │  GO Feature Flag │ flagd │ LaunchDarkly │ Split │ etc  │ │
│  └─────────────────────────────────────────────────────────┘ │
├─────────────────────────────────────────────────────────────┤
│                    Flag Source                               │
│  ┌─────────────────────────────────────────────────────────┐ │
│  │   File   │   S3   │  GitHub  │  API  │  ConfigMap      │ │
│  └─────────────────────────────────────────────────────────┘ │
└─────────────────────────────────────────────────────────────┘
```

### Key Components

1. **API** - Standardized interface for flag evaluation
2. **Pr