bbs_send · Mcp Bbs MCP: Risk & Policy

WHAT IT DOES

What bbs_send does on Mcp Bbs

AI agents invoke bbs_send to trigger actions in Mcp Bbs. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why bbs_send needs a policy

Given the server context (a telnet BBS client enabling AI agents to interact with legacy BBS systems), 'bbs_send' most likely sends input/commands to the remote BBS session, which constitutes executing actions on an external system. The sibling tools confirm active interaction patterns (connect, navigate, send).

From the tool's definition Tool name 'bbs_send' on a BBS telnet client server; description is empty and uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bbs_send Rate-limited

bbs_send stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "bbs_send": {
      "limits": [
        {
          "counter": "bbs_send_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mcp Bbs, so you can run agents against it safely.

FAQ

Questions about bbs_send

What does the bbs_send tool do? +

bbs_send. It is categorised as a Execute tool in the Mcp Bbs MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on bbs_send? +

Register the Mcp Bbs MCP server in PolicyLayer and add a rule for bbs_send: 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 Mcp Bbs. Nothing to install.

What risk level is bbs_send? +

bbs_send is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit bbs_send? +

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

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

bbs_send is provided by the Mcp Bbs MCP server (livingstaccato/mcp-bbs). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.