Measure signal frequency on a channel.
AI agents call measure_frequency to retrieve information from PicoScope MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool reads/measures an existing signal property (frequency) from an oscilloscope channel. It performs a passive measurement with no side effects, data modification, or destructive actions.
From the tool's definition Measure signal frequency on a channel
Attacks that exploit this kind of access
Measure signal frequency on a channel. It is categorised as a Read tool in the PicoScope MCP Server MCP Server, which means it retrieves data without modifying state.
Register the PicoScope MCP Server MCP server in PolicyLayer and add a rule for measure_frequency: 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 PicoScope MCP Server. Nothing to install.
measure_frequency 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 measure_frequency 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 measure_frequency. 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.
measure_frequency is provided by the PicoScope MCP Server MCP server (markuskreitzer/picoscope_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.
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