AI agents call ocr to retrieve information from MaaMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
OCR tools retrieve and extract text from visual content without modifying, deleting, or executing operations. This is a read-only operation. Low severity because OCR output is typically informational and cannot directly cause harm, though confidence is moderate due to empty description and potential context-dependent risks (e.g., extracting sensitive information from screenshots).
From the tool's definition Tool name 'ocr' indicates Optical Character Recognition, which extracts text from images or screens. The sibling tool 'check_and_download_ocr' reinforces this as a read operation. No description provided, reducing confidence.
Attacks that exploit this kind of access
ocr. It is categorised as a Read tool in the MaaMCP MCP Server, which means it retrieves data without modifying state.
Register the Maa MCP server in PolicyLayer and add a rule for ocr: 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 MaaMCP. Nothing to install.
ocr 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 ocr 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 ocr. 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.
ocr is provided by the Maa MCP server (maa-ai/maamcp). 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.
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