util_json_array_length_check

SERVERDelx Mcp A2a SOURCEhttps://api.delx.ai/v1/mcp

Low RISK CLASS

Category Read

Parameters 44 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-a2a/util-json-array-length-check.md

WHAT IT DOES

What util_json_array_length_check does on Delx Mcp A2a

AI agents call util_json_array_length_check to retrieve information from Delx Mcp A2a 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
`fields`	array	Yes	Fields supplied to JSON Array Length Check; used only for this bounded calculation and processed in memory without retention.
`object`	object	Yes	Object supplied to JSON Array Length Check; used only for this bounded calculation and processed in memory without retention.
`maximum`	integer	Yes	Maximum supplied to JSON Array Length Check; used only for this bounded calculation and processed in memory without retention.
`minimum`	integer	Yes	Minimum supplied to JSON Array Length Check; used only for this bounded calculation and processed in memory without retention.

Parameters from the server's own tool schema.

RISK

Why util_json_array_length_check is rated Low

Even though util_json_array_length_check 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.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs util_json_array_length_check safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Delx Mcp A2a, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For util_json_array_length_check, this is the rule to start with:

util_json_array_length_check Allowed

util_json_array_length_check 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_json_array_length_check": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect Delx Mcp A2a, apply this rule, and every util_json_array_length_check call is checked against it from then on.

FAQ

Questions about util_json_array_length_check

What does the util_json_array_length_check tool do? +

JSON Array Length Check checks selected array fields against caller item-count bounds from bounded caller-supplied values without an external provider. Call JSON Array Length Check before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Array Length Check as versioned deterministic JSON. Limitation: Processes bounded caller-supplied data in memory only; it performs no file fetch, database write, code execution, or retention. It is categorised as a Read tool in the Delx Mcp A2a MCP Server, which means it retrieves data without modifying state.

What parameters does util_json_array_length_check accept? +

util_json_array_length_check accepts 4 parameters: fields, object, maximum, minimum. Required: fields, object, maximum, minimum. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on util_json_array_length_check? +

Register the Delx Mcp A2a MCP server in PolicyLayer and add a rule for util_json_array_length_check: 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 A2a. Nothing to install.

What risk level is util_json_array_length_check? +

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

Can I rate-limit util_json_array_length_check? +

Yes. Add a rate_limit block to the util_json_array_length_check 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_json_array_length_check completely? +

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

util_json_array_length_check is provided by the Delx Mcp A2a MCP server (https://api.delx.ai/v1/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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