MCP Tool Reference Medium Risk

push_image

Upload an image to a registry

Part of the Docker MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

ckreiling/mcp-server-docker Write

WHEN AI AGENTS USE THIS TOOL

AI agents use push_image to create or modify resources in Docker. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.

WHY ENFORCE A POLICY ON PUSH_IMAGE

Without a policy, an AI agent could call push_image repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Docker.

RECOMMENDED POLICY

Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.

docker.yaml 
tools:
  push_image:
    rules:
      - action: allow
        rate_limit:
          max: 30
          window: 60

See the full Docker policy for all 19 tools.

DETAILS

Tool Name

push_image

Category

Write

MCP Server

Docker MCP Server

Risk Level

Medium

MORE DOCKER TOOLS

create_container Write
Initialize a new container
create_network Write
Establish a new network
create_volume Write
Create persistent storage
fetch_container_logs Read
Retrieve container output
list_containers Read
Display all containers
list_images Read
View available Docker images
list_networks Read
Show all networks
list_volumes Read
Display all volumes

View all 19 tools →

SIMILAR WRITE TOOLS ON OTHER SERVERS

create_table Airtable
Create a new table with fields
update_table Airtable
Update a table's name or description
create_field Airtable
Add a new field to a table
update_field Airtable
Modify an existing field
create_record Airtable
Add a new record
update_record Airtable
Modify an existing record

RELATED READING

FREQUENTLY ASKED QUESTIONS

What does the push_image tool do?

Upload an image to a registry. It is categorised as a Write tool in the Docker MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on push_image?

Add a rule in your Intercept YAML policy under the tools section for push_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 push_image?

push_image is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit push_image?

Yes. Add a rate_limit block to the push_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 push_image completely?

Set action: deny in the Intercept policy for push_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 push_image?

push_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.

VIEW ON GITHUB Full Docker policy →