disconnect_database · CockroachDB MCP Server MCP

WHAT IT DOES

What disconnect_database does on CockroachDB MCP Server

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

WHY IT NEEDS A POLICY

Why disconnect_database needs a policy

Disconnecting a database connection is a state-modification action that ends an active session. While it does not create, delete, or corrupt data itself, it is a reversible write operation that changes the state of the connection/session management. This is categorized as Write rather than Read (which would be passive retrieval) because it actively modifies the connection state.

From the tool's definition Tool name is 'disconnect_database' and description indicates it closes/terminates the database connection. The description in Chinese '断开与数据库的连接' translates to 'disconnect from the database' or 'close the database connection.'

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

disconnect_database Rate-limited

disconnect_database 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": {
    "disconnect_database": {
      "limits": [
        {
          "counter": "disconnect_database_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about disconnect_database

What does the disconnect_database tool do? +

断开与数据库的连接。. It is categorised as a Write tool in the CockroachDB 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 disconnect_database? +

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

What risk level is disconnect_database? +

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

Can I rate-limit disconnect_database? +

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

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

disconnect_database is provided by the CockroachDB MCP Server MCP server (swayingleaves/cockroachdb-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.