make_parser

THE RISK

Low Risk

Why make_parser needs a policy

The description is empty, so the tool's behavior cannot be determined with confidence. Based on the name 'make_parser' in a security data pipeline context, it likely creates or generates a parser configuration (a Write operation), but without evidence this is speculative. Confidence is low due to the absent description.

From the tool's definition Tool name is 'make_parser'; description is empty and uninformative.

Documented attack patterns abuse exactly the kind of access make_parser gives an agent:

POLICY

How to control make_parser

PolicyLayer is an MCP gateway — it sits between your AI agents and Tenzir MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for make_parser:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "make_parser": {
      "limits": [
        {
          "counter": "make_parser_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

make_parser gets a rate cap, and everything else on the server is denied unless you say otherwise.

Create a free account and register Tenzir MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

SET A RULE FOR THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Tool risk categories → How PolicyLayer classifies MCP tools by what they can do.
MCP tool → What an MCP tool is and how clients discover and call it.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about make_parser

What does the make_parser tool do? +

make_parser. It is categorised as a Other tool in the Tenzir MCP Server MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on make_parser? +

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

What risk level is make_parser? +

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

Can I rate-limit make_parser? +

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

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

make_parser is provided by the Tenzir MCP Server MCP server (tenzir/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Tenzir MCP Server tool call.

Start from Tenzir MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →