images

Lists Docker images with structured repository, tag, size, and creation info.

SERVERNpm SOURCEDave-London/Pare

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-dave-london-npm/images.md

WHAT IT DOES

What images does on Npm

AI agents call images to retrieve information from Npm without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why images is rated Low

This tool retrieves and lists existing Docker image metadata without creating, modifying, deleting, or executing anything. It is purely informational, making it a Read category risk with low severity.

From the tool's definition Tool name 'images' and description 'Lists Docker images with structured repository, tag, size, and creation info' indicates a query/retrieval operation with no side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs images safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Npm, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For images, this is the rule to start with:

images Allowed

images is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "images": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Npm, apply this rule, and every images call is checked against it from then on.

FAQ

Questions about images

What does the images tool do? +

Lists Docker images with structured repository, tag, size, and creation info. It is categorised as a Read tool in the Npm MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on images? +

Register the Npm MCP server in PolicyLayer and add a rule for images: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Npm. Nothing to install.

What risk level is images? +

images is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit images? +

Yes. Add a rate_limit block to the images rule in your PolicyLayer 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 images completely? +

Set action: deny in the PolicyLayer policy for images. 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 images? +

images is provided by the Npm MCP server (Dave-London/Pare). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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