discover_data_for_topic
AI agents call discover_data_for_topic to retrieve information from OpenLandMap MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool appears designed to query and discover datasets from the OpenLandMap STAC catalog based on a topic. Discovery and search operations are read-only actions that retrieve information without modifying, executing arbitrary code, or causing side effects. The low severity reflects that querying public environmental datasets poses minimal risk even if misused by an AI agent.
From the tool's definition Tool is named 'discover_data_for_topic' and shares context with sibling tools like 'find_collections_for_bbox', 'find_items_by_point', and 'find_overlapping_datasets' that search and discover datasets.
Attacks that exploit this kind of access
discover_data_for_topic. It is categorised as a Read tool in the OpenLandMap MCP Server MCP Server, which means it retrieves data without modifying state.
Register the OpenLandMap MCP Server MCP server in PolicyLayer and add a rule for discover_data_for_topic: 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 OpenLandMap MCP Server. Nothing to install.
discover_data_for_topic 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 discover_data_for_topic 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 discover_data_for_topic. 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.
discover_data_for_topic is provided by the OpenLandMap MCP Server MCP server (tharlestsa/openlandmap_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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