find_fields
AI agents call find_fields to retrieve information from EMS MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Based on naming convention and server purpose, 'find_fields' most likely queries schema or field metadata without modifying data. The absence of description lowers confidence slightly, but the pattern of similar Read-category tools on this server and the verb 'find' (non-destructive query) support classification as Read with low severity. No evidence of side effects, execution, or data modification.
From the tool's definition Tool name 'find_fields' suggests data discovery/schema inspection. No description provided, but context of EMS API (flight data analytics) and sibling tools like 'get_field_info', 'list_databases', 'list_event_profiles' indicate this retrieves metadata about…
Attacks that exploit this kind of access
find_fields. It is categorised as a Read tool in the EMS MCP Server MCP Server, which means it retrieves data without modifying state.
Register the EMS MCP Server MCP server in PolicyLayer and add a rule for find_fields: 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 EMS MCP Server. Nothing to install.
find_fields 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 find_fields 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 find_fields. 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.
find_fields is provided by the EMS MCP Server MCP server (mattsq/ems-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
find_fields is one line of EMS MCP Server's registry record.
The record carries the whole server: verified identity, auth posture, risk grade, every tool classified, recommended policy — re-checked continuously.
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