get_connections_by_krs
AI agents call get_connections_by_krs to retrieve information from Rejestr Io MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to retrieve connection information (likely corporate relationships, ownership chains, or associations) linked to a KRS (Polish business registry) number. This is fundamentally a data retrieval operation with no modification or deletion.
From the tool's definition Tool name contains 'get_connections_by_krs' suggesting data retrieval; described as part of a registry database server providing 'company search, beneficiary checks' operations that are inherently read-based.
Attacks that exploit this kind of access
get_connections_by_krs. It is categorised as a Read tool in the Rejestr Io MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Rejestr Io MCP Server MCP server in PolicyLayer and add a rule for get_connections_by_krs: 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 Rejestr Io MCP Server. Nothing to install.
get_connections_by_krs 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_connections_by_krs 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_connections_by_krs. 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_connections_by_krs is provided by the Rejestr Io MCP Server MCP server (kolegaliterat/rejestr-io-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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