util_count_substr

Count non-overlapping substring occurrences

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

Low RISK CLASS

Category Read

Parameters 22 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-count-substr.md

WHAT IT DOES

What util_count_substr does on Delx Mcp A2a

AI agents call util_count_substr 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
`text`	string	Yes	Input field: text.
`needle`	string	Yes	Input field: needle.

Parameters from the server's own tool schema.

RISK

Why util_count_substr is rated Low

Even though util_count_substr 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_count_substr 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_count_substr, this is the rule to start with:

util_count_substr Allowed

util_count_substr 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_count_substr": {}
  }
}

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_count_substr call is checked against it from then on.

FAQ

Questions about util_count_substr

What does the util_count_substr tool do? +

Count non-overlapping substring occurrences. 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_count_substr accept? +

util_count_substr accepts 2 parameters: text, needle. Required: text, needle. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on util_count_substr? +

Register the Delx Mcp A2a MCP server in PolicyLayer and add a rule for util_count_substr: 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_count_substr? +

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

Can I rate-limit util_count_substr? +

Yes. Add a rate_limit block to the util_count_substr 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_count_substr completely? +

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

util_count_substr 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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