addyosmani/agent-skills Alternatives

When you want a competing actively-maintained skills framework with its own methodology for agentic development.

An agentic skills framework & software development methodology that works.

When you want an integrated agent harness with skills plus memory and security, not just skills alone.

The agent harness performance optimization system. Skills, instincts, memory, security, and research-first development for Claude Code, Codex, Opencode, Cursor and beyond.

When you prefer an agile AI-driven development method as a structured alternative to seed's lifecycle skills.

Breakthrough Method for Agile Ai Driven Development

When you want AWS's adaptive workflow rules with a permissive MIT-0 license.

AI-Driven Life Cycle (AI-DLC) adaptive workflow steering rules for AI coding agents

When you want a secure, validated skill registry with confidence guarantees across many agents.

The secure, validated skill registry for professional AI coding agents. Extend Antigravity, Claude Code, Cursor, Copilot and more with absolute confidence.

When you want a large multilingual agent-skill collection covering non-engineering tasks as well.

数字生命卡兹克开源的 AI Skills 合集 | Agent Skills: leader（帮你定义目标）, neat-freak 洁癖, hv-analysis, khazix-writer & more — Claude Code, Codex & 40+ agents

When you want a dedicated spec-driven development tool for AI assistants rather than a full lifecycle skills pack.

Spec-driven development (SDD) for AI coding assistants.

When you need meta-prompting and context engineering for long autonomous runs instead of fixed skill definitions.

A powerful meta-prompting, context engineering and spec-driven development system that enables agents to work for long periods of time autonomously without losing track of the big picture

When you want to inject codebase standards and write better specs via a dedicated agent-OS layer.

Agent OS is a system for injecting your codebase standards and writing better specs for spec-driven development.

When you want a minimal SDD harness that autonomously implements approved specs.

Turn approved specs into long-running autonomous implementation. A minimal, adaptable SDD harness with Agent Skills for Claude Code, Codex, Cursor, Copilot, Windsurf, OpenCode, Gemini CLI, and Antigravity.

When you prefer reusable flow pipelines over prompt-based skill definitions.

Run a task with AI as a flow of steps you keep, reuse, and refine, not a one-off chat.

When you want an MCP server for spec workflows only; it is narrower and GPL-licensed.

A Model Context Protocol (MCP) server that provides structured spec-driven development workflow tools for AI-assisted software development, featuring a real-time web dashboard and VSCode extension for monitoring and managing your project's progress directly in your development environment.

When you only need Go-specific agent skills and want a language-specialized collection.

🧑‍🎨 A collection of Golang agentic skills that works

When you accept a deprecated, unmaintained config template set for legacy setups.

⛔ No longer maintained → dev-agent-kit/recipes 让 Claude Code、Antigravity、Gemini CLI、Codex、Cursor 开箱即用的分层配置模板，总结十多年的日常开发经验

When you need finance-specific AI skills rather than general engineering workflows.

A collection of skills for AI financial analysis.

When you target only Google Antigravity and want a platform-specific skills collection.

A curated collection of Agent Skills for Google Antigravity

When you need only the delegation workflow to land approved changes from a sub-agent.

Delegate a coding task to a separate coding agent CLI, review the diff, land the commit yourself — one per implementer.

When you want basic sample skills for Antigravity as a learning starting point.

Sample Google Antigravity Skills

When you want a ready-made AI coding agent CLI instead of adding skills to your existing agent.

Shob – an AI agent that delivers high-quality coding & automation work