claude-skills-reference/docs/guides/gemini-cli-skills-guide.md

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Gemini CLI Skills & Plugins Guide (2026)	Install and use 192 agent skills with Gemini CLI. Free evaluation calls, engineering, marketing, and DevOps skills for Google's coding agent.

Gemini CLI Agent Skills Guide

Use 192 production-ready agent skills with Gemini CLI. Every skill in this collection is compatible with Gemini's agent skills specification and installs via the .gemini/skills/ directory.

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Quick Install

# Clone the repository
git clone https://github.com/alirezarezvani/claude-skills.git
cd claude-skills

# Run the Gemini setup script (converts and installs all skills)
./scripts/gemini-install.sh

# Or convert individual skills
./scripts/convert.sh --skill frontend-design --tool gemini
./scripts/convert.sh --skill autoresearch-agent --tool gemini

How It Works

Gemini CLI reads agent skills from .gemini/skills/<skill-name>/SKILL.md in your project directory. The setup script converts all skills to Gemini-compatible format, including gemini-extension.json for the extension registry.

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Why Use Skills with Gemini CLI?

Gemini CLI's free tier gives you unlimited evaluation calls — perfect for:

• Autoresearch loops — run overnight experiments with zero API cost
• Content optimization — LLM-judge evaluators for headlines, copy, prompts
• Code review — systematic multi-pass reviews without burning tokens

Free Evaluators with Gemini

The autoresearch-agent skill includes LLM judge evaluators that work with Gemini's free tier:

# Set up an autoresearch experiment using Gemini as the evaluator
python scripts/setup_experiment.py \
  --domain marketing \
  --name headline-optimization \
  --target content/headlines.md \
  --eval "python evaluate.py" \
  --metric ctr_score \
  --direction higher \
  --evaluator llm_judge_content

# The evaluator calls gemini CLI for scoring — free!

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Top Skills for Gemini CLI

Skill	What It Does
autoresearch-agent	Autonomous experiment loop — edit, evaluate, keep or revert. Free with Gemini.
frontend-design	Production-grade React/Tailwind UI with high design quality.
pr-review-expert	Multi-pass code review: logic, security, tests, architecture.
content-creator	SEO-optimized content with brand voice analysis and frameworks.
senior-devops	IaC, CI/CD, monitoring, and incident response.
cto-advisor	Tech debt analysis, team scaling, architecture decisions.
research-summarizer	Structured research → summary → citations workflow.
docker-development	Dockerfile optimization, multi-stage builds, security scanning.

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Gemini Extension Integration

This repo includes gemini-extension.json for Gemini's extension registry:

{
  "name": "claude-skills",
  "version": "2.0.0",
  "description": "192 agent skills for engineering, marketing, product, and more",
  "skills": ["engineering/*", "marketing-skill/*", "product-team/*", "..."]
}

See the Gemini CLI extensions docs for integration details.

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Project-Level vs User-Level

# Project-level (scoped to one repo)
cp -r claude-skills/.gemini/skills/ ./.gemini/skills/

# User-level (available in all projects)
mkdir -p ~/.gemini/skills/
cp -r claude-skills/.gemini/skills/* ~/.gemini/skills/

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Cross-Platform

These skills work on 10 other coding agents too:

Claude Code · OpenAI Codex · Cursor · OpenClaw · Aider · Windsurf · Kilo Code · OpenCode · Augment · Antigravity

See the full catalog for all 192 skills.

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Last updated: March 2026 · alirezarezvani/claude-skills