docker is agent-read markdown (skill) from openhands/extensions: Run Docker commands within a container environment, including starting the Docker daemon and managing containers. Use when building, running, or managing Docker containers and images..
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What the file says
# Docker Usage Guide
## Starting Docker in Container Environments
Please check if docker is already installed. If so, to start Docker in a container environment:
```bash
# Start Docker daemon in the background
sudo dockerd > /tmp/docker.log 2>&1 &
# Wait for Docker to initialize
sleep 5
```
On Windows, start Docker Desktop or the Docker service instead of running `sudo dockerd`; then run Docker commands from PowerShell without `sudo`.
## Verifying Docker Installation
To verify Docker is working correctly, run the hello-world container:
```bash
sudo docker run hello-world
```
PowerShell equivalent after Docker Desktop is running: `docker run hello-world`.
Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.
A 17 of 17 checks passed. Deterministic, no model, same answer every run.
pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (922 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag
Source
GitHub
openhands/extensions · 150 stars · license MIT · pushed 2026-09-24 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_7dcc5h6gfl3em3m3
GET https://markdownregistry.com/api/v1/resolve?ref=openhands/extensions/docker
GET https://markdownregistry.com/api/v1/blob/d4c69e41982982cf1b71e265fbcaec478030bee0bf627285a48bea3a84373a3a
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