pwd_categories

List the categories in the 0n registry with item counts. Use this to discover what

SERVER0nmcp SOURCE0nmcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-0nork-0nmcp/pwd-categories.md

WHAT IT DOES

What pwd_categories does on 0nmcp

AI agents call pwd_categories to retrieve information from 0nmcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why pwd_categories is rated Low

Even though pwd_categories 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 pwd_categories safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 0nmcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For pwd_categories, this is the rule to start with:

pwd_categories Allowed

pwd_categories 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": {
    "pwd_categories": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect 0nmcp, apply this rule, and every pwd_categories call is checked against it from then on.

FAQ

Questions about pwd_categories

What does the pwd_categories tool do? +

List the categories in the 0n registry with item counts. Use this to discover what. It is categorised as a Read tool in the 0nmcp MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on pwd_categories? +

Register the 0n MCP server in PolicyLayer and add a rule for pwd_categories: 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 0nmcp. Nothing to install.

What risk level is pwd_categories? +

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

Can I rate-limit pwd_categories? +

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

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

pwd_categories is provided by the 0n MCP server (0nmcp). 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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