SKILL.md
Docker Hub Automation via Rube MCP
Automate Docker Hub operations through Composio's Docker Hub toolkit via Rube MCP.
Toolkit docs: composio.dev/toolkits/docker_hub
Prerequisites
- Rube MCP must be connected (RUBE_SEARCH_TOOLS available)
- Active Docker Hub connection via
RUBE_MANAGE_CONNECTIONSwith toolkitdocker_hub - Always call
RUBE_SEARCH_TOOLSfirst to get current tool schemas
Setup
Get Rube MCP: Add https://rube.app/mcp as an MCP server in your client configuration. No API keys needed — just add the endpoint and it works.
- Verify Rube MCP is available by confirming
RUBE_SEARCH_TOOLSresponds - Call
RUBE_MANAGE_CONNECTIONSwith toolkitdocker_hub - If connection is not ACTIVE, follow the returned auth link to complete setup
- Confirm connection status shows ACTIVE before running any workflows
Tool Discovery
Always discover available tools before executing workflows:
RUBE_SEARCH_TOOLS: queries=[{"use_case": "repositories, images, tags, and container registry management", "known_fields": ""}]
This returns:
- Available tool slugs for Docker Hub
- Recommended execution plan steps
- Known pitfalls and edge cases
- Input schemas for each tool
Core Workflows
1. Discover Available Docker Hub Tools
RUBE_SEARCH_TOOLS:
queries:
- use_case: "list all available Docker Hub tools and capabilities"
Review the returned tools, their descriptions, and input schemas before proceeding.
2. Execute Docker Hub Operations
After discovering tools, execute them via:
