Skill-Md on Vibe Coding

Agent Skills Open Standard

Mon, 01 Jan 0001 00:00:00 +0000

Agent Skills is the open SKILL.md standard for packaging reusable agent capabilities — originated by Anthropic and now adopted across Codex, Gemini CLI, Grok Build, Cursor, GitHub Copilot, and more.

Codex Skills System

Mon, 01 Jan 0001 00:00:00 +0000

OpenAI Codex’s built-in skills system discovers SKILL.md skills from ~/.codex/skills/ and installs new ones via $skill-installer, either from OpenAI’s curated catalog or any GitHub repo.

Why a skill for this

Having a first-party install path and curated catalog, rather than only community-assembled lists, is what makes a skills ecosystem practical to actually adopt inside Codex.

Google Antigravity Skills System

Mon, 01 Jan 0001 00:00:00 +0000

Google Antigravity’s skills system supports the same SKILL.md format as Claude Code and Codex, with both global (~/.gemini/config/skills/) and per-project (.agents/skills/) scopes.

Why a skill for this

Supporting the shared SKILL.md format means skills built for Antigravity aren’t locked to Google’s tooling — the same skill folder is portable to other compatible agents.

Gemini CLI Skills System

Mon, 01 Jan 0001 00:00:00 +0000

Gemini CLI natively supports the Agent Skills (SKILL.md) open standard, letting it load the same skill format used by Claude Code, Codex, and other compatible agents.

Why a skill for this

A shared skills format means a skill only has to be written once to work across Gemini CLI and other compatible agents, rather than maintaining separate versions per tool.

Grok Build Skills System

Mon, 01 Jan 0001 00:00:00 +0000

Grok Build’s skills system reads SKILL.md skills from .grok/skills/, ~/.grok/skills/, and plugin directories — and is directly Claude Code-compatible, reading .claude/skills and CLAUDE.md with zero extra configuration.

Why a skill for this

Direct compatibility with Claude Code’s own skill and config files means a project that’s already set up for Claude Code works in Grok Build without any migration step.