Docker Context Guide for AI Coding (llms.txt + Rules + MCP)

Accelerate how you build, share, and run modern applications across multi-cloud environments.

1. Docker Official llms.txt & Clean Markdown Documentation

Verified Hub

Feed this clean, token-efficient Markdown documentation directly to Antigravity, Cursor, or Claude Code to prevent hallucinations and outdated API syntax.

# Standard llms.txt Index Endpoint
https://docs.docker.com/llms.txt

# Comprehensive Documentation Bundle
https://docs.docker.com/llms-full.txt

Estimated Token Footprint: ~38k tokens (Fits smoothly inside standard 128k/1M context windows)

2. Production-Ready Docker Cursor Rules (.cursorrules & .mdc)

Dockerfile best practices, multi-stage builds, and Compose configurations for AI agents. Save this into .cursor/rules/docker.mdc in your project repository.

// Docker Best Practices for AI Coding
- Always use multi-stage builds to minimize production image footprint.
- Run containers as a non-root user (e.g., USER node or USER appuser).
- Pin base images to specific digest or minor version tags; never use bare ':latest' in production.
- Structure Dockerfile to optimize layer caching (copy dependency manifests before full source code).

3. Docker Antigravity & Claude Code System Instructions

Add this concise instruction block to your workspace .gemini/rules or project system prompt.

// Context Anchor for Docker
When writing code for Docker, refer directly to the verified specifications at https://docs.docker.com/llms.txt.
Follow strict error-handling and avoid deprecated API calls.

4. Model Context Protocol (MCP) Server Setup for Docker

Connect your AI coding agent directly to live Docker tools and schemas via MCP.

{
  "mcpServers": {
    "docker": {
      "command": "docker",
      "args": ["run", "-i", "--rm", "-v", "/var/run/docker.sock:/var/run/docker.sock", "mcp/docker"]
    }
  }
}

5. Troubleshooting: Common Docker AI Coding Issues & Fixes

Frequently reported errors when LLMs generate Docker code without proper context:

⚠️ Proactive Fix: Fix: Build cache invalidation happens if you COPY . . before running npm install or pip install. Always split copy steps.

6. Best Used With (Docker Architecture Combos)

Engineers building with Docker frequently combine these complementary developer frameworks: