AI agents call my_ocr_tool to retrieve information from reMarkable MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
OCR (Optical Character Recognition) is a data retrieval and extraction operation that reads text from images/documents without modifying or deleting data. The empty description reduces confidence slightly, but the tool name and server context (which emphasizes 'read documents', 'extract text and OCR') clearly indicate a Read category operation.
From the tool's definition Tool name 'my_ocr_tool' and server description indicates OCR functionality for text extraction from documents on reMarkable tablet.
Documented attack patterns abuse exactly the kind of access my_ocr_tool gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and reMarkable MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for my_ocr_tool:
{
"version": "1",
"default": "deny",
"tools": {
"my_ocr_tool": {}
}
}my_ocr_tool is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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my_ocr_tool. It is categorised as a Read tool in the reMarkable MCP Server MCP Server, which means it retrieves data without modifying state.
Register the reMarkable MCP Server MCP server in PolicyLayer and add a rule for my_ocr_tool: 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 reMarkable MCP Server. Nothing to install.
my_ocr_tool is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the my_ocr_tool 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.
Set action: deny in the PolicyLayer policy for my_ocr_tool. 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.
my_ocr_tool is provided by the reMarkable MCP Server MCP server (pypi:remarkable-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from reMarkable MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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14 reMarkable MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.