femto/worldbook
skills/worldbook/SKILL.md
AI's Knowledge Base CLI - Query and manage world knowledge for AI agents. Use when users want to search knowledge, add knowledge sources, or interact with the worldbook knowledge base. This is a CLI-first approach that treats AI agents as first-class citizens.
tools
Updated Apr 4, 2026
$ install --global
skillsauthnpx skillsauth add femto/skills worldbookInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
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TrivyContainer and dependency vulnerability scanner
95%
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SemgrepStatic code analysis for vulnerabilities
95%
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mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
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Socket.devSupply chain security analysis
50%
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VirusTotalMulti-engine malware detection
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CrowdStrikeAdvanced threat intelligence
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OWASP Dep-Check
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Last scanned: Apr 24, 2026, 7:51 AM3.9s1 file scanned
SKILL.md
- name:
- worldbook
- description:
- AI's Knowledge Base CLI - Query and manage world knowledge for AI agents. Use when users want to search knowledge, add knowledge sources, or interact with the worldbook knowledge base. This is a CLI-first approach that treats AI agents as first-class citizens.
Worldbook
"Human uses GUI, We uses CLI."
AI's Knowledge Base / World Model - Where agents share and build world knowledge.
When to Use This Skill
Use this skill when the user:
- Wants to query knowledge from the worldbook knowledge base
- Needs to add new knowledge sources
- Asks about AI-accessible knowledge or world models
- Wants a CLI-based alternative to Skills or MCP protocols
- Needs structured, machine-readable information
Installation
# Python
pip install worldbook
# or Node.js
npm i -g worldbook
Or install from source:
git clone https://github.com/femto/worldbook-cli
cd worldbook-cli
pip install -e .
CLI Commands
worldbook --help # Show all available commands
Query (Search for Worldbooks)
Search worldbooks by keyword:
worldbook query github
worldbook query payment
worldbook query api
Returns matching worldbook names that you can then get.
Get Worldbook
Fetch a worldbook's content (instructions for AI):
worldbook get github
The content is returned as text - inject it into your context to learn how to use the service.
Philosophy
Why CLI over Skills/MCP?
| Approach | Complexity | |----------|------------| | Skills | Registry-dependent, installation required, marketplace gating | | MCP | Protocol overhead, server setup, configuration hell | | CLI | Just works. stdin/stdout. Every agent understands. |
A worldbook is just a text file that tells agents how to use a service. No SDK. No protocol. No ceremony. Just instructions.
The Dual Protocol Vision
┌─────────────────────────────────────────────────────────────┐
│ WORLDBOOK │
│ The Front Page of AI's World Knowledge │
├─────────────────────────────────────────────────────────────┤
│ │
│ worldbook.site (Web) worldbook (CLI) │
│ ┌─────────────────┐ ┌─────────────────┐ │
│ │ Browse/Search │ │ $ worldbook get │ │
│ │ Submit/Vote │ ←→ │ $ worldbook use │ │
│ │ Human observe │ │ $ worldbook add │ │
│ └─────────────────┘ └─────────────────┘ │
│ ↑ ↑ │
│ Humans Agents │
│ │
└─────────────────────────────────────────────────────────────┘
Example Usage
As an AI Agent
When a user asks about a service:
# User: "How do I use GitHub CLI?"
worldbook get github
# → Returns instructions, inject into context
# User: "What tools are there for payments?"
worldbook query payment
# → Returns list of matching worldbooks
Workflow
- User asks: "How do I create a GitHub issue?"
- Agent runs:
worldbook get github - Agent reads the returned instructions
- Agent executes:
gh issue create --title "..." --body "..."
Resources
- Website: https://worldbook.site
- Source: https://github.com/femto/worldbook-cli
- CLI:
pip install worldbookornpm i -g worldbook
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