Compare an insider
AI agents call get_filing_diff to retrieve information from Lynx Mi/lynx Mi without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and compares filing information about insiders, which is a read-only query against the Lynx MI platform. It has no side effects, does not modify data, execute code, or create financial transactions. The description is minimal but consistent with other data retrieval tools in the same server.
From the tool's definition Tool name 'get_filing_diff' and description 'Compare an insider' indicate a data retrieval operation. The pattern of sibling tools ('get_congressional_trades', 'get_insider_profile', 'get_lobbying_activity', etc.) are all Read operations that query market…
Attacks that exploit this kind of access
Compare an insider. It is categorised as a Read tool in the Lynx Mi/lynx Mi MCP Server, which means it retrieves data without modifying state.
Register the Lynx Mi/lynx Mi MCP server in PolicyLayer and add a rule for get_filing_diff: 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 Lynx Mi/lynx Mi. Nothing to install.
get_filing_diff 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 get_filing_diff 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 get_filing_diff. 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.
get_filing_diff is provided by the Lynx Mi/lynx Mi MCP server (lynx-mi/lynx-mi-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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