Skills Marketplace

The Skills Marketplace is groove's built-in app store for agent skills. Browse, install, and attach curated instruction sets that make your agents better at specific tasks — from frontend design to security auditing to code review.

What Are Skills?

A skill is a SKILL.md file — a set of instructions, best practices, and constraints that get injected into an agent's context when it starts. Think of them as expert playbooks that turn a general-purpose coding agent into a specialist.

For example, the Frontend Design skill teaches an agent to avoid generic AI aesthetics, use design tokens, and build production-grade interfaces. The Code Review skill teaches parallel review strategies with CLAUDE.md compliance checking.

Skills are provider-agnostic. They work with Claude Code, Codex, Gemini CLI, or any provider groove supports.

Browsing the Store

Open the Skills tab in the groove GUI to access the marketplace.

Featured skills appear at the top — these are curated, high-quality skills highlighted by the groove team.

Below that, the full catalog is displayed in a 3-column grid. Each card shows:

• Skill name and author
• Verification badge (Anthropic, Groove, or Verified)
• Description
• Star rating and download count
• Category tag
• Price (free or paid)

Search and Filter

• Search — Find skills by name, description, or tags
• Categories — Filter by Design, Quality, Dev Tools, Workflow, Security, or Specialized
• Sort — Popular, Top Rated, Newest, or A-Z

My Skills

Switch to the My Skills tab to see everything you've installed. Quick access to manage your library.

Installing Skills

Click any skill card to open the detail modal. Here you'll see:

• Full description and tags
• Author profile with links to their website, GitHub, and Twitter/X
• Star rating (plus the ability to rate it yourself)
• Download count
• Content preview (for installed skills)

Click Install to download the skill. It's saved locally in your .groove/skills/ directory. No account required, no API key needed.

Attaching Skills to Agents

Installing a skill makes it available. Attaching it to an agent activates it.

At Spawn Time

When spawning a new agent, you'll see a Skills section in the spawn panel listing your installed skills. Toggle the ones you want — they'll be injected into the agent's context when it starts.

On Running Agents

Select a running agent, go to the Actions tab, and scroll to the Skills section. Click + Attach Skill to add a skill, or click the x next to an attached skill to detach it.

TIP

Attaching a skill to a running agent updates its record, but the skill instructions only take effect on the next rotation or restart. For immediate effect, rotate the agent after attaching.

How Injection Works

When an agent spawns with attached skills, groove's introducer loads each SKILL.md, strips the frontmatter, and injects the instruction body into the agent's context under a ## Skills section. The agent receives the full instructions automatically — no manual copy-pasting.

Rating Skills

Help the community find the best skills by rating them. In the detail modal, click the stars under Rate this skill to submit your rating (1-5 stars). Your rating is factored into the aggregate score shown on the card.

Verification Badges

Trust indicators help you identify quality skills:

Badge	Meaning
Anthropic (gold)	Official skills from Anthropic
Groove (teal)	Skills built and maintained by the groove team
Verified (green)	Community creators who have completed verification

Unverified community skills show no badge — they may still be great, but haven't been reviewed yet.

Creating and Selling Skills

The Skills Marketplace isn't just for consuming — it's a platform for creators. If you're an expert in a domain (UI design, security, DevOps, testing), you can package your knowledge into a skill and share it with the community.

What Makes a Good Skill

The best skills are opinionated and specific. They encode real expertise that took years to develop:

• A senior designer's approach to accessible color systems
• A security engineer's OWASP checklist with framework-specific guidance
• A DevOps engineer's production deployment playbook
• A testing specialist's mutation testing strategy

Generic skills that just say "write good code" aren't valuable. Skills that teach an agent how you specifically approach a problem — those are worth paying for.

Skill Structure

A skill is a markdown file with YAML frontmatter:

---
name: My Skill Name
description: What this skill does (this triggers when Claude should use it)
---

Your instructions here. Be specific, opinionated, and practical.

Include examples, anti-patterns, and decision frameworks.

Tips for great skills:

• Lead with the most important constraints
• Include concrete examples of good and bad output
• Reference specific tools, patterns, and libraries
• Keep it under 50KB — agents have context budgets
• Test it by attaching to an agent and reviewing the output

Submitting to the Marketplace

Visit groovedev.ai/studio to submit your skills. The Skill Studio lets you:

• Upload your SKILL.md
• Set a name, description, category, tags, and icon
• Add your author profile (website, GitHub, Twitter/X, portfolio)
• Preview how your skill will appear in the store
• Set a price (free or paid)
• Submit for review

Free skills are published immediately. Paid skills go through a brief review before listing.

Monetizing Your Skills

Turn your expertise into recurring revenue:

• Set your price — you decide what your skill is worth
• 80/20 revenue share — you keep 80%, groove takes 20%
• Stripe Connect — payouts go directly to your Stripe account
• Seller dashboard — track downloads, ratings, and earnings

Getting Verified

Verified creators get a green badge on all their skills, increasing trust and downloads. To get verified:

1. Publish at least one skill
2. Add a "View on groove" link to your portfolio or website
3. Submit a verification request through the Skill Studio

Verification is a one-time process. Once verified, all your current and future skills get the badge.

Community Incentive

Top community-voted skill each month wins a free Team plan for life. Build skills, get votes, and earn a permanent upgrade.

Default Skills

groove ships with 21 official skills from Anthropic, covering:

• Design — Frontend Design, Playground Builder
• Quality — Code Review, Code Simplifier, PR Review Toolkit
• Dev Tools — Build MCP Server, Build MCP App, Skill Creator, Hook Development, Agent Development, and more
• Workflow — Feature Development, Commit Commands, Explanatory Output, Learning Output
• Security — Security Guidance
• Specialized — Math Olympiad

These are free, open-source (Apache 2.0), and serve as examples of well-structured skills.

Offline Support

The daemon caches the skill registry locally. If you lose internet connectivity:

• Installed skills continue to work (they're local files)
• The marketplace falls back to the bundled registry
• New installs may fail until connectivity is restored

No data is lost offline. The daemon syncs with the live registry on the next startup.