extract_text_from_image

Extract text from an image using OCR

SERVERPercepta MCP Server SOURCE0x-hewm/percepta-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/0x-hewm-percepta-mcp/extract-text-from-image.md

WHAT IT DOES

What extract_text_from_image does on Percepta MCP Server

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

RISK

Why extract_text_from_image is rated Low

OCR (Optical Character Recognition) is a passive data extraction mechanism that analyzes an image and returns recognized text. It performs no side effects, creates no resources, executes no code, and modifies nothing.

From the tool's definition Tool name 'extract_text_from_image' and description 'Extract text from an image using OCR' indicate a read-only operation that retrieves text data from an image without modifying or executing anything.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs extract_text_from_image safely

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

extract_text_from_image Allowed

extract_text_from_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": {
    "extract_text_from_image": {}
  }
}

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

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

FAQ

Questions about extract_text_from_image

What does the extract_text_from_image tool do? +

Extract text from an image using OCR. It is categorised as a Read tool in the Percepta MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on extract_text_from_image? +

Register the Percepta MCP Server MCP server in PolicyLayer and add a rule for extract_text_from_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 Percepta MCP Server. Nothing to install.

What risk level is extract_text_from_image? +

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

Can I rate-limit extract_text_from_image? +

Yes. Add a rate_limit block to the extract_text_from_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 extract_text_from_image completely? +

Set action: deny in the PolicyLayer policy for extract_text_from_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 extract_text_from_image? +

extract_text_from_image is provided by the Percepta MCP Server MCP server (0x-hewm/percepta-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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