util_idempotency_key

Derive a deterministic namespaced idempotency key from canonical JSON.

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-idempotency-key.md

WHAT IT DOES

What util_idempotency_key does on Delx MCP Server

AI agents call util_idempotency_key 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
`payload`	object	Yes	JSON value whose canonical representation identifies one logical operation.
`namespace`	string	—

Parameters from the server's own tool schema.

RISK

Why util_idempotency_key is rated Low

Even though util_idempotency_key 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 raw HTML/template content (payload)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs util_idempotency_key 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_idempotency_key, this is the rule to start with:

util_idempotency_key Allowed

util_idempotency_key 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_idempotency_key": {}
  }
}

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_idempotency_key call is checked against it from then on.

FAQ

Questions about util_idempotency_key

What does the util_idempotency_key tool do? +

Derive a deterministic namespaced idempotency key from canonical JSON. 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_idempotency_key accept? +

util_idempotency_key accepts 2 parameters: payload, namespace. Required: payload. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on util_idempotency_key? +

Register the Delx MCP Server MCP server in PolicyLayer and add a rule for util_idempotency_key: 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_idempotency_key? +

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

Can I rate-limit util_idempotency_key? +

Yes. Add a rate_limit block to the util_idempotency_key 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_idempotency_key completely? +

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

util_idempotency_key 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.

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