Connect AI agents to over 1,000 apps with reusable skill packages
Imagine AI that goes beyond text generation to send emails or create issues in real applications. This repository is a collection of 'Claude Skills,' reusable instruction packages that teach AI agents how to perform specific tasks. It includes practical tools ready for use in various coding agents, including Claude Code.
How skills define agent behavior
Claude Skills are reusable instruction packages that teach AI agents how to handle specific types of tasks. Each skill consists of a folder structure containing YAML frontmatter with a name and description, along with markdown instructions, and can include scripts or reference materials as needed. Skills use a progressive loading approach where the agent only checks the skill name and description at the start of a session and loads the full content only when it determines the skill is relevant to the current task. This allows agents to host hundreds of skills simultaneously without bloating the context window.
Distinguishing skills from MCP and tools
Skills have a distinct role separate from MCP servers or individual tools. MCP defines how an agent connects to external systems, handling authentication, transport, and tool discovery. Tools refer to the individual functions an agent calls. In contrast, skills provide workflows that define what to do in what order and which safety measures to apply once the agent has secured the necessary connections and tools. In real-world operations, these three layers work together: MCP handles access, tools handle actions, and skills handle the manner of action.
Automating 78 SaaS apps and key categories
The list includes skills across various categories such as document processing, development tools, data analysis, business marketing, communication, creative media, productivity, collaboration, security systems, assistive technology, and app automation. Notably, it provides pre-built workflow skills for automating 78 SaaS apps via Composio, with each skill including tool sequences, parameter guides, known pitfalls, and quick reference tables. It covers a wide range of business areas, including CRM, project management, communication, email, code and DevOps, storage, spreadsheets, calendars, social media, marketing, support, e-commerce, design, and collaboration. For example, it enables the automation of repetitive tasks through integrations with major business tools like Salesforce, Jira, Slack, Gmail, GitHub, and Notion.
Quick start for connecting real apps
To connect Claude to over 1,000 apps for real-world tasks, you can use the connect-apps plugin. This plugin handles authentication and connects to over 1,000 apps via Composio, enabling tasks such as sending emails, creating issues, and posting to Slack. Installation is simple: install the plugin with the claude --plugin-dir ./connect-apps-plugin command, then run /connect-apps:setup to enter your API key. After restarting Claude, you can verify the connection by testing email reception. Free API keys can be issued from the Composio dashboard.
Considerations before use
This repository is a collection of practical tools usable on various AI agent platforms that support the Claude Skill format. If you plan to create skills directly or modify existing ones, it is important to understand the SKILL.md file structure and YAML frontmatter format. Additionally, when using specific app automation skills, you may need the app's API key or authentication information, so it is advisable to prepare authentication settings for Composio or individual apps in advance. While the progressive loading method of skills is beneficial for context management, if the agent fails to correctly judge the relevance of a skill, the desired results may not be achieved; therefore, writing clear skill names and descriptions is crucial. Since this list is a continuously updated community-based project, it is recommended to periodically check for the latest skill versions and changes.
