util_query_param_pick

Pick named query parameters from a URL or raw query string

SERVERDelx MCP Server SOURCEdelx-mcp-server

Low RISK CLASS

Category Read

Parameters 21 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-davidmosiah-delx-mcp-server/util-query-param-pick.md

WHAT IT DOES

What util_query_param_pick does on Delx MCP Server

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

Parameter	Type	Required	Description
`url`	string	Yes	Input field: url.
`keys`	array	—	Input field: keys.

Parameters from the server's own tool schema.

RISK

Why util_query_param_pick is rated Low

Even though util_query_param_pick only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Risk signalsAccepts URL/endpoint input (url)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs util_query_param_pick safely

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

util_query_param_pick Allowed

util_query_param_pick 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": {
    "util_query_param_pick": {}
  }
}

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

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

FAQ

Questions about util_query_param_pick

What does the util_query_param_pick tool do? +

Pick named query parameters from a URL or raw query string. It is categorised as a Read tool in the Delx MCP Server MCP Server, which means it retrieves data without modifying state.

What parameters does util_query_param_pick accept? +

util_query_param_pick accepts 2 parameters: url, keys. Required: url. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on util_query_param_pick? +

Register the Delx MCP Server MCP server in PolicyLayer and add a rule for util_query_param_pick: 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 Delx MCP Server. Nothing to install.

What risk level is util_query_param_pick? +

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

Can I rate-limit util_query_param_pick? +

Yes. Add a rate_limit block to the util_query_param_pick 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 util_query_param_pick completely? +

Set action: deny in the PolicyLayer policy for util_query_param_pick. 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 util_query_param_pick? +

util_query_param_pick is provided by the Delx MCP Server MCP server (delx-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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