# Libconfig

> libconfig - Configuration management library. serviceConfig, extensionConfig, and scriptConfig load settings from files and environment variables. Configuration class provides advanced features like namespacing and storage backend loading. Use for service initialization, environment-specific settings, and runtime configuration.

- Skill: `majiayu000/libconfig` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add majiayu000/libconfig`
- Raw SKILL.md: https://api.skillmd.com/api/skills/majiayu000/libconfig/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: majiayu000 (https://skillmd.com/u/majiayu000)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/majiayu000/libconfig

---


# libconfig Skill

## When to Use

- Loading configuration for services at startup
- Managing environment-specific settings (local, docker, production)
- Accessing configuration values with defaults
- Initializing applications with proper config hierarchy

## Key Concepts

**Namespace configs**: serviceConfig, extensionConfig, scriptConfig provide
scoped configuration for different component types.

**Configuration class**: Advanced configuration with storage backend support and
dynamic reloading.

## Usage Patterns

### Pattern 1: Service configuration

```javascript
import { serviceConfig } from "@copilot-ld/libconfig";

const config = serviceConfig("agent");
const host = config.get("HOST", "localhost");
const port = config.get("PORT", 50051);
```

### Pattern 2: Extension configuration

```javascript
import { extensionConfig } from "@copilot-ld/libconfig";

const config = extensionConfig("web");
const authEnabled = config.get("AUTH_ENABLED", "false") === "true";
```

## Integration

Used by all services and extensions at startup. Loads from .env files and
config/\*.yml.