Get metadata for segments of a table
AI agents call segment_metadata_details to retrieve information from StarTree MCP Server for Apache Pinot without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves metadata information about database segments. The verb 'Get' and the nature of metadata retrieval confirm this is a read-only operation with no side effects. No data is created, modified, deleted, or executed. The blast radius of misuse is minimal—an attacker could only gain insight into table structure and segment organization, not compromise data integrity or availability.
From the tool's definition Tool name 'segment_metadata_details' and description 'Get metadata for segments of a table' indicate retrieval of information without modification or destructive operations.
Documented attack patterns abuse exactly the kind of access segment_metadata_details gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and StarTree MCP Server for Apache Pinot, and nothing reaches the server without passing your rules. This is the rule we recommend for segment_metadata_details:
{
"version": "1",
"default": "deny",
"tools": {
"segment_metadata_details": {}
}
} segment_metadata_details is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get metadata for segments of a table. It is categorised as a Read tool in the StarTree MCP Server for Apache Pinot MCP Server, which means it retrieves data without modifying state.
Register the StarTree MCP Server for Apache Pinot MCP server in PolicyLayer and add a rule for segment_metadata_details: 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 StarTree MCP Server for Apache Pinot. Nothing to install.
segment_metadata_details 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 segment_metadata_details 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 segment_metadata_details. 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.
segment_metadata_details is provided by the StarTree MCP Server for Apache Pinot MCP server (startreedata/mcp-pinot). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from StarTree MCP Server for Apache Pinot, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
26 StarTree MCP Server for Apache Pinot tools catalogued and risk-classified — across an index of 43,000+ MCP servers.