Specialist agents
Frontend, backend, security, database, mobile, and more - each with a focused system prompt and skill set.
Expand your AI coding agents with AG Kit
54 skills, 24 specialist agents, and production workflows you can install in one command. Safe merge updates keep your local changes.
terminal
$ bun add -d git+ssh://git@github.com/houching/ag-kit.git#subdirectory=cli
✓ Downloaded toolkit
✓ Installed .agents (skills, agents, workflows)
✓ Wrote managed-file manifest
$ ag-kit update
Strategy: merge · Backup created
Updated 12 files · Preserved 3 local · 0 conflicts
▸ /brainstorm auth options
Exploring 3 approaches before you write code...Everything in one toolkit
24 Agents
54 Skills
13 Workflows
CLI
Merge-safe
Open source
24 Agents
54 Skills
13 Workflows
CLI
Merge-safe
Open source
Benefits
Your shortcut to production-ready agent work
AG Kit packages the playbooks, agents, and guardrails you need so AI coding assistants act like a coordinated team instead of a single chat window.
01
Ship features faster
Specialist agents and skills cover planning, coding, review, security, and deploy so you spend less time reinventing prompts.
02
Safer updates
Managed-file manifests, three-way conflict detection, and backups mean ag-kit update never silently wipes your local edits.
03
Workflows that stick
From /brainstorm to /deploy, repeatable command workflows keep teams aligned on the same process.
04
Quality built in
Lint, security, SEO, performance, and test checkers live next to the skills that teach agents how to use them.
Features
What makes AG Kit different
A full agent capability pack, not a single prompt template - designed for real projects and safe upgrades over time.
Domain skills
54 skills covering architecture, testing, i18n, SEO, GEO, deployment, and clean code standards.
Guided workflows
Slash commands for brainstorm, plan, create, debug, test, preview, status, orchestrate, and deploy.
Simple CLI
init, update, rollback, and status with dry-run, merge/replace strategies, and conflict reports.
Merge-safe updates
SHA-256 baseline tracking separates clean files, local modifications, and true three-way conflicts before writing.
Docs synced with kit
Installation guides, CLI reference, and localized examples kept in lockstep with the toolkit version.
Workflows
Commands that execute your process
Slash workflows turn implicit knowledge into repeatable agent sessions.
/brainstorm
Explore multiple approaches with trade-offs before you write code.
/plan
Deconstruct features into tasks, dependencies, and verification criteria.
/create
Scaffold full-stack applications from natural language requests.
/debug
Systematic root cause analysis with evidence-based verification.
/orchestrate
Coordinate parallel specialist agents on complex multi-domain work.
/deployCore
Production-ready release procedure with rollback safety.
Testimonials
Real feedback from the GitHub community.
nobruf
Open Source Contributor
"AG Kit brings discipline to agentic coding that was sorely missing. The separation of concerns between agents and domain skills makes prompts vastly cleaner."
vudovn
Maintainer & Creator
"The merge-safe update flow saved me countless hours. When our upstream rules update, my local customizations stay intact without noisy diff conflicts."
alexandre-dos-reis
Full-Stack Developer
"The /brainstorm workflow before jumping straight into coding forces the AI assistant to explore tradeoffs. It completely eliminated hallucinations on architecture."
houching
Core Developer
"Production agent workflows with strict anti-cheat guardrails, zero stubs, and immutable tests. AG Kit is our team's standard toolkit."
shadcn
Design & UI Pioneer
"Clean tokens, sensible defaults, and beautiful typography. High density console aesthetics done right."
antigravity
Google DeepMind Ecosystem
"Designed from the ground up for Antigravity runtime, MCP protocols, and multi-agent coordination."
Sponsored
Proudly supported by developers
AG Kit is free and open-source. Backing helps keep the agents and skills sharp.
Unikorn
unikorn.vn
Unikorn builds high-speed developer platforms and digital transformation infrastructure for fast-growing engineering teams.
Visit Unikorn
Become a Sponsor
Support open source AI agent tooling and put your company in front of engineers worldwide.
Want your brand featured here? Reach out on GitHub.Contribute
Built by developers, for developers
Thank you to everyone who has submitted code, docs, and ideas. Join us on GitHub.
FAQ
Frequently Asked Questions
What is AG Kit?
AG Kit is an open-source toolkit of AI agent skills, specialist agents, workflows, and a CLI that safely installs and updates them in your projects.
How do I install it in my project?
Run `bun add -d git+ssh://git@github.com/houching/ag-kit.git#subdirectory=cli` or install via git clone. AG Kit downloads `.agents/` and generates a manifest file tracking every component.
Will updating overwrite my customizations?
No. The default update strategy is merge. Clean managed files are updated automatically; files you created or modified are preserved; and conflicts create backup copies alongside a detailed conflict report.
Which AI environments work with AG Kit?
AG Kit is built specifically for Google Antigravity, while also functioning seamlessly with Claude Code, Cursor, Codex, and any modern agent runtime that respects local project rules and skills.
Is AG Kit free to use?
Yes, AG Kit is 100% free and open-source under the MIT license.