workflowstacks
claude-skill

Simplify workflows with Spellbook

Get cross-runtime skills for Claude Code and Codex. For startup founders and developers.

From the repo · “Cross-runtime skills for Claude Code, Codex, and multi-agent workflows.”

288 stars26 forksPythonGuide quality 8/10 · reviewed Jul 4Updated 10/22/2026100% free · open source
What it does

Spellbook provides cross-runtime skills for Claude Code and Codex, allowing startup founders and developers to create multi-agent workflows and integrate with various tools and services.

When to use it
  • •When you need to integrate Claude Code with other tools and services
  • •When you want to create multi-agent workflows with Codex
  • •When you require cross-runtime skills for your startup's development projects
Ready-to-paste prompt
python spellbook/cli.py --skill my_new_skill --runtime claude_code
Heads up: Make sure you have the correct runtime environments installed and configured, as specified in the README, to avoid compatibility issues and ensure smooth execution of your skills and workflows
Saves to your device
Use with Claude
New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

⚡ Runs out of the box

A prompt/skill package — nothing to install beyond adding it to your AI tool.

Try it instantly — no install
Claude Code
mkdir -p ~/.claude/skills/spellbook && curl -fsSL https://workflowstacks.com/api/skills/spellbook/claude-skill -o ~/.claude/skills/spellbook/SKILL.md
Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)
claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How Simplify workflows with Spellbook works
Codeflow
Free to inspect

Simplify workflows with Spellbook is a large Python project (~30k lines across 147 code files, plus 50 test files). You install it into your AI tool with one command; there is nothing to run yourself. Last commit this month, MIT license, has a test suite.

Size
Large codebase
~30k lines · 147 code files · ~4 h to skim
Setup
Install as a skill / plugin
Add it to Claude Code (or your AI tool) with one command — 116 skills inside. Nothing to run yourself.
Runs on
Inside your AI tool
Nothing to install on your machine
Python 87%HTML 5%Shell 4%TypeScript 1%Go 1%
Where to start reading
  1. 1
    README.md
    Start here — what it does and how to install it
  2. 2
    AGENTS.md
    The instructions the AI actually follows
  3. 3
    skills/agentsmd-optimize/SKILL.md
    Inside skills/ — an example of what the AI is told to do
What's in each folder
skills/Prompts, skills & agent definitions563 files
agents/Prompts, skills & agent definitions7 files
plugins/Sub-packages / plugins44 files
workflows/Workflows / pipelines1 files
docs/Documentation29 files
scripts/Helper scripts8 files
registry/Folder4 files
codex/Folder3 files
READMEHas testsDocumentedCI checksMIT licenseUpdated this month
Quick Actions
Details
Creator
majiayu000
Language
Python
Category
claude-skill
Published
12/9/2025

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Featured on WorkflowStacks
[![Featured on WorkflowStacks](https://workflowstacks.com/api/badge/spellbook.svg)](https://workflowstacks.com/skills/spellbook?utm_source=github&utm_medium=badge)
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Do this with a working workflow

Pages we wrote and tested that put a skill like this to work — importable n8n templates, outcome guides and Claude Desktop configs.

MCP config

Context7 (live docs) MCP config

Pull up-to-date library docs into Claude so it codes against the real API.

MCP config

Playwright (browser) MCP config

Drive a real browser for testing and automation from Claude.

MCP config

GitHub MCP config

Search repos, read code, open issues and PRs from Claude.

Ready-to-run pack · one-time $29

Review Watchdog

Catch every bad review the day it lands — with a reply ready.

Includes the tested workflow and a written setup playbook. Needs: Google Places API key (free tier).

See what you get

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