Agent Skills Becomes Open Standard

# Agent Skills Becomes Open Standard

## The Milestone: Dec 18, 2025

Anthropic announced Agent Skills as an independent open standard on December 18, 2025. The specification and SDK are now available at agentskills.io.

## What Changed

Agent Skills is now a cross-platform standard for extending AI agent capabilities using reusable skill packages (SKILL.md files + resources).

## Adoption Wave

✅ Microsoft

• •VS Code and GitHub have already integrated Agent Skills

• •Native support in Microsoft Agent Framework

✅ Google Antigravity

• •Added Agent Skills support in January 2026 update

• •Same SKILL.md standard with YAML frontmatter

✅ OpenCode, Cursor, Goose, Amp

• •Popular coding agents have adopted the standard

• •Enable cross-platform skill portability

⏳ Trae & Others

• •Tools like Trae are actively exploring Agent Skills integration

• •Community requests show growing demand

## Why It Matters

Before open standard: Skills were platform-specific, couldn't port between tools.

After open standard: One skill works across Claude, VS Code, Antigravity, and future platforms.

This transforms Agent Skills from a proprietary feature to a shared ecosystem for AI workflows.

## Impact on RaiseSkills

RaiseSkills.net becomes a curated marketplace for verified Agent Skills, helping users discover skills that work across multiple platforms.

## Related Skills

• •Superpowers

• •UI UX Pro Max

• •Obsidian Skills