scope_get_waveform
AI agents call scope_get_waveform to retrieve information from LeCroy Oscilloscope MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves waveform data from the oscilloscope without modifying instrument state, triggering external operations, or causing side effects beyond read-only data access. The missing description slightly lowers confidence, but the name and context clearly indicate a data retrieval function. Severity is low because reading instrument data poses minimal risk even if misused by an agent.
From the tool's definition Tool name 'scope_get_waveform' indicates retrieval of waveform data from an oscilloscope. The server description mentions 'waveform capture' and 'measurements' as read-only operations.
Attacks that exploit this kind of access
scope_get_waveform. It is categorised as a Read tool in the LeCroy Oscilloscope MCP MCP Server, which means it retrieves data without modifying state.
Register the LeCroy Oscilloscope MCP server in PolicyLayer and add a rule for scope_get_waveform: 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 LeCroy Oscilloscope MCP. Nothing to install.
scope_get_waveform 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 scope_get_waveform 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 scope_get_waveform. 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.
scope_get_waveform is provided by the LeCroy Oscilloscope MCP server (lucasgerads/lecroy-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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