echoskill

Cross-platform AI agent skills for Claude Code and Gemini CLI. Discover, share, and install reusable capabilities for your AI coding agents.

Quick Start

Install em for skill management across both Claude Code and Gemini CLI:

pipx install echomodel
em skills marketplace register echoskill https://github.com/echo-skill/echoskill.git
em skills install capture-context
em skills list

Note: Claude Code (as of v2.1.89, April 2026) has no native CLI for installing skills from a marketplace. em fills this gap, providing the same skill management experience for Claude Code that Gemini CLI offers natively.

Native Gemini CLI install

Gemini CLI also supports native skill installation without em:

# Install all skills from a collection
gemini skills install https://github.com/echo-skill/echoskill.git --path coding

# Install one skill
gemini skills install https://github.com/echo-skill/echoskill.git --path prompting/nm

Platform targeting

By default, em installs into supported agents (extensible via providers). To install to one platform only:

em skills install capture-context --target claude
em skills install capture-context --target gemini

---

Collections

prompting/

User-invoked slash commands for prompt control.

Skill	Description
nm	Nevermind — discard the last prompt
proceed	Continue after an interruption
capture-context	Capture all session context before ending a conversation
pre-publish-privacy-review	Review content for privacy before publishing

coding/

Development workflow skills.

Skill	Description
sociable-unit-tests	Sociable unit testing with dir isolation and no mocks
develop-skill	Build portable cross-platform skills
setup-agent-context	Configure CLAUDE.md and .gemini/settings.json for a repo
author-github-issue	Structured GitHub issue authoring with privacy rules
publish-skill	Publish skills to a marketplace
code-reuse	Find and reuse existing code patterns
workspace-status	Check workspace state across repos
workstation-portability	Backup and portability for dotfiles, skills, and config
prioritize-github-issues	Scan and rank issues across all repos/orgs by priority labels
transfer-github-repo	Transfer repos between orgs with optional rename

claude/

Claude Code-specific skills.

Skill	Description
sessions	Search and manage Claude Code sessions

---

How It Works

Each skill is a directory containing a SKILL.md file with YAML frontmatter:

---
name: my-skill
description: When to invoke this skill
---
Instructions for the agent...

Both Claude Code and Gemini CLI discover skills by scanning for SKILL.md files. No manifest or registration needed — the file IS the skill.

See CONTRIBUTING.md for details on adding skills.

Links

• echoskill.ai
• Part of the echomodel ecosystem