get_distinct_values

Return distinct values and counts for an allowlisted column.

SERVEREtfedge SOURCEa7351220/etfedge-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade A, identity unverified Pull the record →

This record as markdown: /tools/a7351220-etfedge-mcp/get-distinct-values.md

WHAT IT DOES

What get_distinct_values does on Etfedge

AI agents call get_distinct_values to retrieve information from Etfedge without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_distinct_values is rated Low

Tool queries distinct column values without modifying data or executing arbitrary operations.

From the tool's definition Return distinct values and counts for an allowlisted column

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_distinct_values safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Etfedge, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For get_distinct_values, this is the rule to start with:

get_distinct_values Allowed

get_distinct_values is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_distinct_values": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Etfedge, apply this rule, and every get_distinct_values call is checked against it from then on.

FAQ

Questions about get_distinct_values

What does the get_distinct_values tool do? +

Return distinct values and counts for an allowlisted column. It is categorised as a Read tool in the Etfedge MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_distinct_values? +

Register the Etfedge MCP server in PolicyLayer and add a rule for get_distinct_values: 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 Etfedge. Nothing to install.

What risk level is get_distinct_values? +

get_distinct_values is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_distinct_values? +

Yes. Add a rate_limit block to the get_distinct_values 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.

How do I block get_distinct_values completely? +

Set action: deny in the PolicyLayer policy for get_distinct_values. 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.

What MCP server provides get_distinct_values? +

get_distinct_values is provided by the Etfedge MCP server (a7351220/etfedge-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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