ai.describe-image

Describe an image (JPEG/PNG/GIF/WebP, ≤1MB) via Claude Haiku vision. Returns caption + structured details.

SERVERMcp SOURCE@2sio/mcp

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-2s-io-mcp/ai.describe-image.md

WHAT IT DOES

What ai.describe-image does on Mcp

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

RISK

Why ai.describe-image is rated Low

This tool processes an image input and returns descriptive metadata (caption and structured details) via Claude Haiku vision. It is a read-only analysis operation analogous to 'get' or 'fetch' — it retrieves information from the image without creating, modifying, deleting, or executing anything.

From the tool's definition Tool description states it 'Describe[s] an image' and 'Returns caption + structured details' — a pure retrieval and analysis operation with no side effects, data modification, code execution, or external state changes.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs ai.describe-image safely

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

ai.describe-image Allowed

ai.describe-image 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": {
    "ai.describe-image": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Mcp, apply this rule, and every ai.describe-image call is checked against it from then on.

FAQ

Questions about ai.describe-image

What does the ai.describe-image tool do? +

Describe an image (JPEG/PNG/GIF/WebP, ≤1MB) via Claude Haiku vision. Returns caption + structured details. It is categorised as a Read tool in the Mcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on ai.describe-image? +

Register the MCP server in PolicyLayer and add a rule for ai.describe-image: 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 Mcp. Nothing to install.

What risk level is ai.describe-image? +

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

Can I rate-limit ai.describe-image? +

Yes. Add a rate_limit block to the ai.describe-image 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 ai.describe-image completely? +

Set action: deny in the PolicyLayer policy for ai.describe-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 ai.describe-image? +

ai.describe-image is provided by the MCP server (@2sio/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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