SkillKit: Portable Skills Layer for AI Coding Agents
SkillKit is an open-source TypeScript project that provides a portable skills abstraction for AI coding agents, enabling installation, translation, and sharing of skills across tools like Claude Code, Cursor, Codex, GitHub Copilot, and 40+ others. The project has accumulated 1,112 stars with 32 added today, indicating moderate community traction. It targets the interoperability gap between the growing ecosystem of AI coding assistants.
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agent-skills: Secure Validated Skill Registry for AI Coding Agents
A TypeScript-based open-source skill registry designed to extend AI coding agents including Claude Code, Cursor, GitHub Copilot, and Antigravity with validated, reusable capabilities. The project provides a structured way to add skills to multiple coding agent platforms with a focus on security and validation. It is gaining notable traction with 3,767 total stars and 225 stars added today.
claude-skills: 313+ Skill/Plugin Collection for Claude Code and Multi-Agent Coding Tools
A GitHub repository providing 313+ reusable skills, agent plugins, and workflow templates targeting Claude Code, Codex, Gemini CLI, Cursor, and eight other coding agents. Coverage spans engineering, marketing, compliance, C-level advisory, finance, and productivity domains. The project has accumulated 15,476 stars with 157 added today, indicating strong community traction. It represents a growing ecosystem of structured prompt/skill libraries designed to extend AI coding agents beyond pure code generation.
K-Dense-AI/scientific-agent-skills: Ready-to-Use Agent Skills Library for Research and Engineering
A Python repository providing a collection of pre-built agent skills targeting research, science, engineering, analysis, finance, and writing tasks. The project has accumulated 24,087 stars with a notable single-day gain of 762 stars, indicating significant community traction. No detailed technical documentation is available from the snippet, but the scope suggests a modular agent tooling library.
Anthropic-Cybersecurity-Skills: 754 Structured Cybersecurity Skills for AI Agents
A GitHub repository providing 754 structured cybersecurity skills designed for AI coding agents, mapped to five major frameworks including MITRE ATT&CK, NIST CSF 2.0, MITRE ATLAS, D3FEND, and NIST AI RMF. The skills are organized across 26 security domains and conform to the agentskills.io standard. The project claims compatibility with Claude Code, GitHub Copilot, Codex CLI, Cursor, Gemini CLI, and 20+ other platforms. It has accumulated 7,330 stars with 238 added today, indicating notable community traction.
Google Labs Releases Stitch Skills: Agent Skills Library for MCP-Compatible Coding Agents
Google Labs has published stitch-skills, a TypeScript library of Agent Skills designed to work with the Stitch MCP server. The library follows the Agent Skills open standard, enabling compatibility with multiple coding agents including Gemini CLI, Claude Code, Cursor, and Antigravity. The repository has accumulated 5,597 stars with 70 added today, indicating active community interest in the MCP/agent tooling ecosystem.
SkillOpt: Systematic Text-Space Optimizer for Self-Evolving Agent Skills
SkillOpt introduces a principled optimization framework for agent skills, treating the skill document as an external trainable state analogous to model weights. A separate optimizer model converts scored rollouts into bounded edits (add/delete/replace) on a skill document, accepting only edits that improve held-out validation scores. Evaluated across six benchmarks, seven target models, and three execution harnesses (direct chat, Codex, Claude Code), SkillOpt achieves best or tied performance on all 52 evaluated cells, lifting GPT-5.5 no-skill accuracy by up to +24.8 points inside the Codex agentic loop. Optimized skill artifacts also transfer across model scales and execution environments without further optimization.
Anthropic Publishes 'Agent Skills' Public Repository
Anthropic has made a public GitHub repository called 'skills' available, described as a public repository for Agent Skills. The repository has accumulated 136,679 total stars with 514 added today, suggesting significant community interest. The project appears to be a Python-based resource related to agent capabilities, though specific technical details are sparse from the available description.
CopilotKit gains traction as frontend framework for AI agents and generative UI
CopilotKit is an open-source TypeScript framework providing a frontend stack for building AI agents and generative UI with React and Angular support. The project has accumulated 32,442 GitHub stars with 350 added in a single day, indicating strong community interest. The team also develops the AG-UI Protocol, a standard for agent-UI communication.