Claude Skills Marketplace

A curated marketplace of Claude Code plugins with skills, commands, agents, and MCP server configurations.

Quick Start

Step 1: Add the Marketplace

/plugin marketplace add trancong12102/ccc

Step 2: Install Plugins

# Browse available plugins
/plugin

# Install core plugin
/plugin install ccc-core@ccc

# Install external skills plugin
/plugin install ccc-external@ccc

Use with Other Coding Agents

Install skills using Vercel's add-skill:

bunx add-skill -a antigravity -y -g trancong12102/ccc

Available Skills

Skill	Description
brainstorming	Collaboratively explore ideas through guided dialogue before implementation
context7	Look up documentation for any library using Context7
commit	Generate git commit messages following Conventional Commits spec
deps-dev	Look up latest package versions using deps.dev API
exa	Web search, crawling, and code context retrieval
oracle	Deep analysis via powerful reasoning model (Codex CLI)
test-driven-development	Guide strict TDD using Red-Green-Refactor cycle

External Skills (ccc-external)

Skills synced from third-party repositories. These are automatically checked for updates daily.

Skill	Source	Description
logging-best-practices	boristane/agent-skills	Logging best practices focused on wide events for debugging and analytics
react-best-practices	vercel-labs/agent-skills	React and Next.js performance optimization guidelines
web-design-guidelines	vercel-labs/agent-skills	Web interface design guidelines for UI code review

Recommended Marketplaces

These community skills work great alongside this marketplace:

Repository	Description
vercel-labs/agent-browser	Browser automation for web testing, form filling, screenshots, and data extraction
ast-grep/claude-skill	Structural code search using AST patterns

Install external skills:

# Using Claude Code
/plugin marketplace add <owner>/<repo>

# Using add-skill (for other agents)
bunx add-skill -a antigravity -y -g <owner>/<repo>

Prerequisites

Some skills require API keys to be set as environment variables:

Variable	Skill	Description
CONTEXT7_API_KEY	context7	API key for Context7 documentation lookup
EXA_API_KEY	exa	API key for Exa web search and content extraction

Setup Notes

Enable Marketplace Auto-Update

To keep your plugins up to date automatically, enable marketplaces auto-update in your Claude Code settings

Oracle Skill

The oracle skill requires Codex CLI to be installed. Install it and configure the profile below to enable invoking gpt-5.2 (xhigh) for complex reasoning tasks.

Add this profile to your Codex config.toml:

[profiles.oracle]
model = "gpt-5.2"
model_reasoning_effort = "xhigh"
approval_policy = "never"
sandbox_mode = "read-only"

[sandbox_workspace_write]
network_access = true

[features]
web_search_request = true

See the Codex CLI documentation for setup instructions.

License

MIT License