set_group_special_title

A write tool on the NapCat MCP server.

SERVERNapCat MCP Server SOURCE1021143806/napcat_mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/1021143806-napcat-mcp/set-group-special-title.md

WHAT IT DOES

What set_group_special_title does on NapCat MCP Server

AI agents use set_group_special_title to create or update resources in NapCat MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your NapCat MCP Server environment.

RISK

Why set_group_special_title is rated Medium

The tool performs a group management operation that changes member metadata (special title) without deleting data or executing arbitrary code. While it affects group structure, the change is reversible through the same operation.

From the tool's definition The tool 'set_group_special_title' modifies group member attributes by setting a special title, which is a reversible change to group data. This aligns with Write category actions that create or modify data reversibly.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs set_group_special_title safely

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

set_group_special_title Rate-limited

set_group_special_title stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "set_group_special_title": {
      "limits": [
        {
          "counter": "set_group_special_title_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect NapCat MCP Server, apply this rule, and every set_group_special_title call is checked against it from then on.

FAQ

Questions about set_group_special_title

What does the set_group_special_title tool do? +

set_group_special_title is a write tool on the NapCat MCP Server MCP server. It is categorised as a Write tool in the NapCat MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on set_group_special_title? +

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

What risk level is set_group_special_title? +

set_group_special_title is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit set_group_special_title? +

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

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

set_group_special_title is provided by the NapCat MCP Server MCP server (1021143806/napcat_mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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