# Claude Code Bible

> Fetch Claude Code official documentation. Use when updating local reference docs or checking official spec. Use when this capability is needed.

- Skill: `tomevault-io/claude-code-bible` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/claude-code-bible`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/claude-code-bible/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Docs & Writing
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/claude-code-bible

---


# Claude Code Bible

Official documentation reference management for Claude Code.

## Purpose

Maintain up-to-date local copies of Claude Code official documentation.

## Commands

### /claude-code-bible update

Fetch the latest documentation from code.claude.com.

**What it does:**
- Fetches `https://code.claude.com/docs/llms.txt`
- Extracts all documentation URLs from the llms.txt content
- Downloads each documentation page and saves as markdown
- Writes a timestamp file for cache tracking
- Respects a 24-hour cache (skip if fresh, unless `--force` used)

**Usage:**
```bash
# Fetch latest docs (skip if cached < 24h)
node .claude/skills/claude-code-bible/scripts/fetch-docs.js

# Force update even if cache is fresh
node .claude/skills/claude-code-bible/scripts/fetch-docs.js --force

# Custom output directory
node .claude/skills/claude-code-bible/scripts/fetch-docs.js --output /path/to/output
```

**Default output location:**
```
~/.claude/references/claude-code/
├── llms.txt              # Master index
├── last-updated.txt      # ISO timestamp
├── <doc-name>.md         # Individual doc pages
└── ...
```

**Exit codes:**
- `0`: Success (or cache is fresh)
- `1`: Fatal error

## Implementation Notes

### Fetch Script (fetch-docs.js)

**Features:**
- Uses only Node.js built-in modules (https, fs, path)
- Handles HTTP redirects (3xx responses)
- Respects server with 200ms delay between requests
- 24-hour cache to avoid unnecessary fetches
- Comprehensive error reporting

**Cache behavior:**
- Checks `last-updated.txt` timestamp
- Skips fetch if < 24 hours old (unless --force)
- Always updates timestamp on successful fetch

**Error handling:**
- Reports HTTP errors with status codes
- Continues on individual page failures
- Prints summary of successes and failures

## Integration with Other Skills

### update-docs
- Should update local docs first: `/claude-code-bible update`

### dev-review
- Can reference official docs for best practices

## Benefits

1. **Up-to-date**: Always have latest documentation locally
2. **Offline access**: Work with docs even without internet
3. **Learning**: Reference official patterns when creating new components

## Notes

- The fetch script is production-ready and can be used immediately
- Consider running `/claude-code-bible update` weekly to stay current

---
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<!-- tomevault:4.0:skill_md:2026-04-12 -->