build_image
Create an image from a Dockerfile
Part of the Docker MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
WHEN AI AGENTS USE THIS TOOL
AI agents call build_image to perform operations in Docker. While the risk category is not fully classified, applying a rate limit gives you visibility into how often the tool is called and prevents unexpected bursts of activity from autonomous agents.
WHY ENFORCE A POLICY ON BUILD_IMAGE
Applying a policy to build_image gives you an audit trail of every call an AI agent makes. Even for low-risk tools, visibility into agent behaviour helps you debug issues, optimise workflows, and maintain compliance with your organisation's security requirements.
RECOMMENDED POLICY
Apply a rate limit to control usage and monitor for unexpected behaviour.
tools:
build_image:
rules:
- action: allow
rate_limit:
max: 60
window: 60See the full Docker policy for all 19 tools.
DETAILS
MORE DOCKER TOOLS
pull_image Other recreate_container Other start_container Other stop_container Other fetch_container_logs Read list_containers Read list_images Read list_networks Read SIMILAR OTHER TOOLS ON OTHER SERVERS
RELATED READING
FREQUENTLY ASKED QUESTIONS
What does the build_image tool do?
Create an image from a Dockerfile. It is categorised as a Other tool in the Docker MCP Server, which means it performs auxiliary operations.
How do I enforce a policy on build_image?
Add a rule in your Intercept YAML policy under the tools section for build_image. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Docker MCP server.
What risk level is build_image?
build_image is a Other tool with low risk. Read-only tools are generally safe to allow by default.
Can I rate-limit build_image?
Yes. Add a rate_limit block to the build_image rule in your Intercept policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
How do I block build_image completely?
Set action: deny in the Intercept policy for build_image. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
What MCP server provides build_image?
build_image is provided by the Docker MCP server (ckreiling/mcp-server-docker). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
ENFORCE POLICIES ON DOCKER
Open source. One binary. Zero dependencies.