AI agents call instrument_identify to retrieve information from mcpXL30 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and returns static information about the microscope (type, serial number, telemetry) without modifying any state, executing operations, or affecting hardware configuration. It is a straightforward informational read operation with minimal risk.
From the tool's definition Tool name 'instrument_identify' and description 'Return the microscope type, serial number, and selected telemetry' indicate pure data retrieval with no side effects.
Attacks that exploit this kind of access
Return the microscope type, serial number, and selected telemetry. It is categorised as a Read tool in the mcpXL30 MCP Server, which means it retrieves data without modifying state.
Register the mcpXL30 MCP server in PolicyLayer and add a rule for instrument_identify: 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 mcpXL30. Nothing to install.
instrument_identify 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 instrument_identify 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 instrument_identify. 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.
instrument_identify is provided by the mcpXL30 MCP server (tspspi/mcpxl30). 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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