send_group_notice

Send group announcement

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/send-group-notice.md

WHAT IT DOES

What send_group_notice does on NapCat MCP Server

AI agents use send_group_notice 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 send_group_notice is rated Medium

The tool creates new data (a group announcement) and posts it to a messaging platform, which is reversible (notices can typically be deleted or edited). This is a Write operation. Severity is medium because an AI agent misusing this could spam announcements to large groups, disrupting the service, but it's not destructive (can be undone), not financial, and doesn't execute arbitrary code.

From the tool's definition Tool name: 'send_group_notice'; description states 'Send group announcement' — this creates/posts new content (a notice/announcement) to a group, modifying the group's state by adding a new message.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs send_group_notice 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 send_group_notice, this is the rule to start with:

send_group_notice Rate-limited

send_group_notice 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": {
    "send_group_notice": {
      "limits": [
        {
          "counter": "send_group_notice_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 send_group_notice call is checked against it from then on.

FAQ

Questions about send_group_notice

What does the send_group_notice tool do? +

Send group announcement. 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 send_group_notice? +

Register the NapCat MCP Server MCP server in PolicyLayer and add a rule for send_group_notice: 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 send_group_notice? +

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

Can I rate-limit send_group_notice? +

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

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

send_group_notice 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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