# Debug

> Debug package usage guide. Use when adding debug logging, understanding log namespaces, or implementing debugging features. Triggers on debug logging requests or logging implementation.

- Skill: `mahabdalla/debug` (Agent Skill)
- Install (CLI): `npx skillmds@latest add mahabdalla/debug`
- Raw SKILL.md: https://api.skillmd.com/api/skills/mahabdalla/debug/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: mahabdalla (https://skillmd.com/u/mahabdalla)
- Updated: 2026-09-22
- Page: https://skillmd.com/skills/mahabdalla/debug

---


# Debug Package Usage Guide

## Basic Usage

```typescript
import debug from 'debug';

// Format: lobe-[module]:[submodule]
const log = debug('lobe-server:market');

log('Simple message');
log('With variable: %O', object);
log('Formatted number: %d', number);
```

## Namespace Conventions

- Desktop: `lobe-desktop:[module]`
- Server: `lobe-server:[module]`
- Client: `lobe-client:[module]`
- Router: `lobe-[type]-router:[module]`

## Format Specifiers

- `%O` - Object expanded (recommended for complex objects)
- `%o` - Object
- `%s` - String
- `%d` - Number

## Enable Debug Output

### Browser

```javascript
localStorage.debug = 'lobe-*';
```

### Node.js

```bash
DEBUG=lobe-* npm run dev
DEBUG=lobe-* pnpm dev
```

### Electron

```typescript
process.env.DEBUG = 'lobe-*';
```

## Example

```typescript
// src/server/routers/edge/market/index.ts
import debug from 'debug';

const log = debug('lobe-edge-router:market');

log('getAgent input: %O', input);
```

---
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<!-- tomevault:2.0:skill_md:2026-04-05 -->