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Claude Code Marketplaces

Discover Claude Code plugins, extensions, and tools. Automatically updated directory of Anthropic Claude AI marketplaces with development tools, productivity plugins, and integrations.

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Built for the Claude Code community with Claude Code by @mertduzgun

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Skill Creator

countbot-ai/countbot
722 starsMIT
Summary

This is meta tooling for the skill system itself. It walks you through the full cycle of creating a new skill from scratch, running evals against test prompts, benchmarking performance with quantitative metrics, and iterating based on results. It also optimizes skill descriptions for better triggering accuracy, which matters because Claude tends to undertrigger skills. The workflow is flexible enough to handle users who want rigorous testing or just want to vibe check their changes. If you're building skills or wondering why your skill isn't firing when it should, this handles both problems.

Install to Claude Code

npx -y skills add countbot-ai/countbot --skill skill-creator --agent claude-code

Installs into .claude/skills of the current project.

CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Vibe Prospecting MCPVibe Prospecting MCP
Vibe Prospecting MCP
Connect Claude to +800M contacts, +150M companies. Find & Enrich leads in chat.
Try For Free →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Make money from your Skills
Make money from your Skills
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
Put your SEO on autopilot
Put your SEO on autopilot
An agent that runs the SEO playbooks that move rankings and ships PRs you control.
Get founding access →
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Vibe Prospecting MCPVibe Prospecting MCP
Vibe Prospecting MCP
Connect Claude to +800M contacts, +150M companies. Find & Enrich leads in chat.
Try For Free →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Make money from your Skills
Make money from your Skills
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
Put your SEO on autopilot
Put your SEO on autopilot
An agent that runs the SEO playbooks that move rankings and ships PRs you control.
Get founding access →
Files
SKILL.md

Select a file.

Featured
CodeRabbit
CodeRabbit
AI writes the code. CodeRabbit catches the slop.
Try For Free →
Vibe Prospecting MCPVibe Prospecting MCP
Vibe Prospecting MCP
Connect Claude to +800M contacts, +150M companies. Find & Enrich leads in chat.
Try For Free →
Make your agent a DeFi expert
Make your agent a DeFi expert
Agent, run crypto. Access onchain data & trade routes via 1inch.
Install now →
AppSignal
AppSignal
Monitor with ease. Code with confidence.
Start Free Trial →
Make money from your Skills
Make money from your Skills
On Capafy, your Skill runs online 24/7 as an agent product, and you get paid every time someone uses it.
Start earning →
Put your SEO on autopilot
Put your SEO on autopilot
An agent that runs the SEO playbooks that move rankings and ships PRs you control.
Get founding access →
Categories
Testing & QASkill DevelopmentDebugging
First SeenJun 11, 2026
View on GitHub

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