AI agents call evaluate_accuracy to retrieve information from Ocr without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to evaluate accuracy scores of OCR engines, which is a read operation that queries performance data without modifying state or triggering side effects. The server is explicitly designed for 'accuracy handling and evaluation,' and this tool fits that pattern.
From the tool's definition Tool name 'evaluate_accuracy' and server context (OCR accuracy evaluation/comparison) suggest this retrieves or assesses OCR engine performance metrics. No description provided, which reduces confidence slightly.
Attacks that exploit this kind of access
evaluate_accuracy. It is categorised as a Read tool in the Ocr MCP Server, which means it retrieves data without modifying state.
Register the Ocr MCP server in PolicyLayer and add a rule for evaluate_accuracy: 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 Ocr. Nothing to install.
evaluate_accuracy 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 evaluate_accuracy 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 evaluate_accuracy. 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.
evaluate_accuracy is provided by the Ocr MCP server (prekzursil/abbyy-finereader-ocr-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
Teams ship this data inside their own products. See what a licence covers →