connection · Bun Database MCP Server MCP: Risk & Policy

WHAT IT DOES

What connection does on Bun Database MCP Server

AI agents invoke connection to trigger actions in Bun Database MCP Server. 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 connection needs a policy

This tool manages database connections — connecting, disconnecting, or checking status. Connecting/disconnecting are external operations that affect system state (establishing or tearing down database sessions). While not directly data-destructive, disconnecting could interrupt ongoing operations or cause availability issues.

From the tool's definition Manage database connection (connect/disconnect/status)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

connection Rate-limited

connection 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": {
    "connection": {
      "limits": [
        {
          "counter": "connection_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 Bun Database MCP Server, so you can run agents against it safely.

FAQ

Questions about connection

What does the connection tool do? +

Manage database connection (connect/disconnect/status). It is categorised as a Execute tool in the Bun Database MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on connection? +

Register the Bun Database MCP Server MCP server in PolicyLayer and add a rule for connection: 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 Bun Database MCP Server. Nothing to install.

What risk level is connection? +

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

Can I rate-limit connection? +

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

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

connection is provided by the Bun Database MCP Server MCP server (ross-jill-ws/bun-db-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.