Skillshub docker_hub-automation

Automate Docker Hub tasks via Rube MCP (Composio): repositories, images, tags, and container registry management. Always search tools first for current schemas.

install

source · Clone the upstream repo

git clone https://github.com/ComeOnOliver/skillshub

Claude Code · Install into ~/.claude/skills/

T=$(mktemp -d) && git clone --depth=1 https://github.com/ComeOnOliver/skillshub "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/ComposioHQ/awesome-claude-skills/docker_hub-automation" ~/.claude/skills/comeonoliver-skillshub-docker-hub-automation-1186fd && rm -rf "$T"

manifest: skills/ComposioHQ/awesome-claude-skills/docker_hub-automation/SKILL.md

source content

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_CONNECTIONS
```
with toolkit
```
docker_hub
```
Always call
```
RUBE_SEARCH_TOOLS
```
first 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_TOOLS
```
responds
Call
```
RUBE_MANAGE_CONNECTIONS
```
with toolkit
```
docker_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:

RUBE_MULTI_EXECUTE_TOOL:
  tools:
    - tool_slug: "<discovered_tool_slug>"
      arguments: {<schema-compliant arguments>}
  memory: {}
  sync_response_to_workbench: false

3. Multi-Step Workflows

For complex workflows involving multiple Docker Hub operations:

Search for all relevant tools:
```
RUBE_SEARCH_TOOLS
```
with specific use case
Execute prerequisite steps first (e.g., fetch before update)
Pass data between steps using tool responses
Use
```
RUBE_REMOTE_WORKBENCH
```
for bulk operations or data processing

Common Patterns

Search Before Action

Always search for existing resources before creating new ones to avoid duplicates.

Pagination

Many list operations support pagination. Check responses for

next_cursor

page_token

and continue fetching until exhausted.

Error Handling

Check tool responses for errors before proceeding
If a tool fails, verify the connection is still ACTIVE
Re-authenticate via
```
RUBE_MANAGE_CONNECTIONS
```
if connection expired

Batch Operations

For bulk operations, use

RUBE_REMOTE_WORKBENCH

with

run_composio_tool()

in a loop with

ThreadPoolExecutor

for parallel execution.

Known Pitfalls

Always search tools first: Tool schemas and available operations may change. Never hardcode tool slugs without first discovering them via
```
RUBE_SEARCH_TOOLS
```
.
Check connection status: Ensure the Docker Hub connection is ACTIVE before executing any tools. Expired OAuth tokens require re-authentication.
Respect rate limits: If you receive rate limit errors, reduce request frequency and implement backoff.
Validate schemas: Always pass strictly schema-compliant arguments. Use
```
RUBE_GET_TOOL_SCHEMAS
```
to load full input schemas when
```
schemaRef
```
is returned instead of
```
input_schema
```
.

Quick Reference

Operation	Approach
Find tools	`RUBE_SEARCH_TOOLS` with Docker Hub-specific use case
Connect	`RUBE_MANAGE_CONNECTIONS` with toolkit `docker_hub`
Execute	`RUBE_MULTI_EXECUTE_TOOL` with discovered tool slugs
Bulk ops	`RUBE_REMOTE_WORKBENCH` with `run_composio_tool()`
Full schema	`RUBE_GET_TOOL_SCHEMAS` for tools with `schemaRef`

Toolkit docs: composio.dev/toolkits/docker_hub