Overview
ASG (Agent Skill Generator) is a free, open-source app that lets you build structured AI agent skills directly in your browser. It requires no sign-ups, no accounts, and no cloud services—just bring your own API key (BYOK) and start creating. Skills are defined in a clean SKILL.md format, and everything runs 100% privately on your computer. The tool is MIT licensed, meaning you own what you build and can share it however you choose.
Application scenarios
Code review automation
Create a skill that reviews pull requests for style, bugs, performance, and security vulnerabilities.
Accessibility auditing
Build a skill that checks UI components against WCAG 2.2 standards and suggests ARIA fixes.
Sales account management
Develop a post-sale account strategist that handles land-and-expand execution, QBR facilitation, and net revenue retention.
Payment processing
Design an autonomous agent that executes vendor payments, contractor invoices, and recurring bills across crypto, fiat, and stablecoins.
Ad creative strategy
Craft a paid media specialist that optimizes ad copy, RSA, asset groups, and creative testing frameworks across Google, Meta, Microsoft, and programmatic platforms.
Agent identity and trust
Build a skill that designs identity, authentication, and trust verification systems for multi-agent environments.
Agentic search optimization
Create a skill that audits whether AI agents can accomplish tasks on your site (book, buy, register, subscribe) and implements WebMCP patterns.
Core features
100% private
All generated skills stay on your computer; your API keys never leave your browser.
AI-assisted skill writing
Use ChatGPT, Claude, Gemini, or Ollama to help you write the perfect skill description.
Full ownership
You decide how to share—open-source your skills for the community or keep them private under your own license.
Community skills library
Browse and use pre-built skills from other users, such as a11y-auditor, account strategist, and agentic identity architect.
SKILL.md format
Skills are defined in a structured Markdown file with name, description, version, license, and a system prompt.
Bring your own key (BYOK)
No account needed—just supply your own API key from any supported AI provider.
100% spec coverage
The tool ensures your skills meet the full specification for structured agent skills.
MIT open-source license
The entire app is free to use, modify, and distribute.
Target users
This tool is ideal for developers, AI engineers, and prompt engineers who want to create reusable, structured skills for AI agents without relying on third-party cloud services. It also suits technical product managers and automation specialists who need to build custom agent behaviors for specific workflows like code review, sales, or accessibility auditing.
How to use
Open the official website at https://agent-skill-generator.pages.dev/ in your browser—no sign-up or account required. Start building a new skill by defining its name, description, version, and license in the SKILL.md format. Use the AI assistance feature (with ChatGPT, Claude, Gemini, or Ollama) to help craft the system prompt. Once finished, your skill stays locally on your computer; you can choose to share it with the community or keep it private.
Effect review
ASG delivers exactly what it promises: a straightforward, privacy-first way to build structured AI agent skills without any friction. The community skills section shows real, practical examples like a11y-auditor and account strategist, which suggests the format is flexible enough for serious use cases. The BYOK approach and browser-only execution eliminate the usual sign-up and data privacy headaches. For developers who want to own and control their agent skill definitions, ASG is a solid, no-nonsense tool that gets the job done.
Frequently asked questions
What is ASG?
ASG is a free, open-source tool for building structured AI agent skills. You can create and manage AI agents locally without accounts or cloud services.
Do I need to create an account to use ASG?
No, ASG requires no accounts. Just bring your own API key to get started.
Is ASG free to use?
Yes, ASG is completely free and open-source. There are no hidden costs or subscriptions.
How do I get started with ASG?
Download or clone the ASG repository, provide your own API key, and follow the documentation to start building AI agent skills.
Does ASG rely on cloud services?
No, ASG is designed to work without cloud services. All processing is done locally using your own API key.
What kind of AI agents can I build with ASG?
ASG allows you to build structured AI agents for various tasks, such as chatbots, automation tools, or custom skill-based assistants.
Launch URL
https://agent-skill-generator.pages.dev/Tags
Featured recommendations
AI Agent Sk
alternativeAI Agent Sk by Skills.lc is an open ecosystem for AI agent skills, offering 314,794 reusable skills with 139,764,378 total installs for platforms like Claude, Cursor, and Codex.
Skillhound
alternativeA search engine by Skillhound for discovering every public agent skill on GitHub, helping developers find or fill AI skill gaps.
Skills
alternativeSkills by Skills.sh enables users to discover and install specialized capabilities for AI agents, expanding their functionality for various tasks and workflows.
Skillier
alternativeSkillier by Skillier AI is a routing skill that directs any request to the best 3–5 expert skills from a curated index of 4,000+ deduped, quality-filtered, and injection-scanned skills, compatible wit
Agent Skills Hub
alternativeAgent Skills Hub is a comprehensive directory for discovering and comparing over 51,000 open-source AI agent skills, MCP servers, and automation tools, featuring quality scores and frequent updates.
Future AGI
alternativeFuture AGI by Future AGI helps developers build self-improving agents, catch failures, understand root causes, and ship smarter updates.
虾评Skill
alternativeXiapingSkill is a platform for discovering, sharing, and reviewing high-quality AI skills compatible with the OpenClaw framework, designed to empower and enhance your AI agents.
CREAO AI
alternativeCREAO AI by its developer enables your Super Agent to transform completed tasks into autonomous agents with persistent memory and round-the-clock execution, moving beyond simple chat interactions.
Related Toolkits
AI Assistant / AgentsAgentWing
AgentWing by GPM AI provides pre-execution governance for AI agents, handling policy checks, approvals, sandbox routing, restore points, logs, and audit receipts to ensure safe and compliant tool usag
View Details
AI Assistant / AgentsBloom
The first AI decision agent that solves accuracy, explainability, and usability issues in complex data analysis and decision-making.
View Details
AI Assistant / AI SearchBocha AI Search
China's first AI search engine supporting multiple models, based on top AI models like Tongyi Qianwen, ByteDance's Cloud Lark, and Moon's Dark Side Kimi.
View Details