# extract_text_from_image

Extract readable text from image using OCR.

Agent View of the PolicyLayer registry record for `extract_text_from_image`. HTML page: https://policylayer.com/tools/7etsuo-image-description-mcp-server/extract-text-from-image

## Facts

- Tool: `extract_text_from_image`
- Server: Image Description MCP Server (`7etsuo/image-description-mcp_server`) — https://policylayer.com/tools/7etsuo-image-description-mcp-server.md
- Homepage: https://github.com/7etsuo/image-description-mcp_server
- Risk category: Read (Low risk)
- Registry record: grade A, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "extract_text_from_image",
    "arguments": {}
  }
}
```

## Why extract_text_from_image is rated Low

This tool retrieves and extracts data (text) from images without side effects. It does not create, modify, delete, or execute code. OCR is fundamentally a data extraction operation, fitting the Read category. Severity is low because misuse would at worst return unintended text content, with no blast radius beyond information disclosure of what is already visible in the image.

From the tool's own definition: "Tool performs OCR to 'extract readable text from image' — a read-only retrieval operation with no modification, deletion, or execution of external systems."

## Use case

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

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Image Description MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "extract_text_from_image": {}
  }
}
```

## Other tools on Image Description MCP Server (2)

- `describe_image_file` — Read — https://policylayer.com/tools/7etsuo-image-description-mcp-server/describe-image-file.md
- `describe_image_url` — Read — https://policylayer.com/tools/7etsuo-image-description-mcp-server/describe-image-url.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=7etsuo-image-description-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/7etsuo-image-description-mcp-server