Beta

The lifecycle layer for AI skills.

One home for your AI assistant skills.

Author, deploy, and distill skills across Claude Code, Cursor, and Windsurf - all git-native, bidirectional, and local. Write once, symlink everywhere. No telemetry, no servers.

Apple Silicon & Intel Local-first, no telemetry Works offline
Works with the tools you already use
Claude CodeClaude Code
CursorCursor
WindsurfWindsurf
Features

Everything you need to manage skills

Built for engineers who use more than one AI assistant and don't want their work scattered across folders.

Deploy once, use everywhere
Write a skill in one folder. Skillbook symlinks it into Cursor and Windsurf so all three tools see the same file. One source of truth, zero sync logic.
CLAUDE.md manager New
A dedicated tab for every CLAUDE.md on your machine. Skillbook scans your user-global file, plugin caches, and any project roots you add - then groups them in a sidebar so you can jump to any one in two clicks. Edit with full Markdown preview, mtime conflict guard, and read-only protection on plugin files.
Generate & enhance with AI
Scaffold new skills from a prompt with Claude. Or open an existing one and accept Claude's suggestions for clearer triggers, names, and structure - one at a time.
Distill from past sessions
Pick one or many Claude Code sessions, click once, and Skillbook turns them into a reusable skill. Recurring debugging dance? Now it's a SKILL.md.
Git-backed import & updates
Import skills from any git repo. Skillbook tracks origin SHA per skill and shows an Update pill when upstream moves. Snapshots before overwrite for safe rollback.
Contribute back via PR
Edited a shared skill? Push your changes to a new branch and Skillbook hands you the compare URL. No CLI ceremony, no force pushes to main.
Plugin inspector & export
Browse skills bundled inside installed Claude Code plugins. Toggle them on or off. Export any skill as a zip your team can drop in.
Test before you ship
Type a sample prompt and ask Claude two questions: would this skill trigger here? And what would it actually respond with? Catches vague descriptions and broken instructions before your teammates do.
How it works

From zero to deployed in minutes

Local file I/O. Your existing Claude gateway for AI features. No Skillbook server in between.

1

Author or import

Use the new-skill dialog with templates and live Markdown preview, generate one with Claude, or import from any git repo.

2

Pick your tools

Check Claude, Cursor, Windsurf - or all three. The first picked tool stores the real file; the rest get symlinks back to it.

3

Stay in sync

An Update pill lights up when the source repo moves. Click to preview the diff and apply. Snapshots make rollback one click.

Git-native

Manage skills like code

Skills aren't files you copy around. Skillbook treats every imported skill as a tracked piece of a git repo - import, pull updates, push improvements back. Bidirectional, with snapshots.

Import from any repo

Paste a git URL or point at a local folder. Skillbook walks the tree, finds every SKILL.md, and lets you pick exactly which ones to keep and where they land - Claude, Cursor, Windsurf, or all three.

Pull updates with safety

Skillbook stores the origin SHA per skill and pings remotes for you. When upstream moves, a green Update pill lights up. Click to preview the diff and apply - your version is snapshotted first so rollback is one click away.

Contribute back as a PR

Edit locally. When you're ready, Skillbook checks out a fresh branch on the upstream remote, copies your changes, pushes, and hands you the compare URL. Never pushes to the default branch. No CLI ceremony.

Install

Three steps to running

Skillbook is an unsigned beta, so macOS adds a quarantine flag. One command clears it.

1

Download the DMG

Pick Apple Silicon (M1 / M2 / M3 / M4) or Intel. Unsure? Open About This Mac - the "Chip" line tells you.

Trouble downloading? Get it from Google Drive.

2

Drag to Applications

Double-click the .dmg. Drag Skillbook onto the Applications shortcut.

3

Unblock the app

macOS quarantines unsigned downloads with a "Skillbook is damaged" or "can't be opened" error. Run this in Terminal once to clear the flag:

xattr -cr /Applications/Skillbook.app

If you put it elsewhere, point the command at that location (e.g. ~/Downloads/Skillbook.app). Prefer no Terminal? Right-click Skillbook in Applications, choose Open, then click Open in the dialog.

Preview

A clean three-pane workspace

Library on the left, list in the middle, detail on the right. Both side panels collapse when you need more room.

Skill detail with built-in testing
Skills with built-in testing Browse, edit, and test your skills. Sample a prompt to see if it triggers and what Claude responds with.
New Skill dialog
Create new skill Templates, frontmatter inputs, AI-assisted scaffolding via Claude.
Import skills from a git repo
Import skills Pull skills from any git repo. Pick which ones to keep and where they land.
Marketplace
Marketplace Browse installed plugins, inspect their skills, hooks, and MCP servers.
Sessions tab
Sessions Browse past Claude Code conversations and distill recurring patterns into skills.
Settings
Settings Pick which tools you actually use. Disabled tools drop out of the UI.

Ready to tame your skills folder?

Skillbook is in beta and free to use. Download the macOS build or browse the source on GitHub.