Cluster active markets by their resolution source or resolver.
AI agents call find_data_source_concentrators to retrieve information from Polymarket Research without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs data aggregation and clustering on public market information. It reads and analyzes existing markets to group them by resolution source, which is a pure read operation with no side effects, reversible modifications, code execution, or financial impact. The read-only nature of the server and the non-mutating verb 'cluster' (analysis, not creation) confirm the Read category.
From the tool's definition Tool description states it 'cluster[s] active markets' - a retrieval and analysis operation with no modification. Server is explicitly described as 'Read-only MCP server' backed by 'public APIs'.
Attacks that exploit this kind of access
Cluster active markets by their resolution source or resolver. It is categorised as a Read tool in the Polymarket Research MCP Server, which means it retrieves data without modifying state.
Register the Polymarket Research MCP server in PolicyLayer and add a rule for find_data_source_concentrators: 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 Polymarket Research. Nothing to install.
find_data_source_concentrators 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_data_source_concentrators 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_data_source_concentrators. 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_data_source_concentrators is provided by the Polymarket Research MCP server (yoppav/polymarket-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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