follow_up · TalkDB MCP: Risk & Policy

WHAT IT DOES

What follow_up does on TalkDB

AI agents invoke follow_up to trigger actions in TalkDB. 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 follow_up needs a policy

The tool is part of a natural-language database querying system (TalkDB) and its purpose is to refine and re-execute a previous query in an ongoing session. Like sibling tools 'ask', 'analyze', and 'correct_query', it triggers query execution against a database.

From the tool's definition 'Refine the previous query in a session' — this tool re-runs or modifies a database query, which constitutes executing SQL or a query operation against a database.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

follow_up Rate-limited

follow_up 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": {
    "follow_up": {
      "limits": [
        {
          "counter": "follow_up_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 TalkDB, so you can run agents against it safely.

FAQ

Questions about follow_up

What does the follow_up tool do? +

Refine the previous query in a session. It is categorised as a Execute tool in the TalkDB MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on follow_up? +

Register the TalkDB MCP server in PolicyLayer and add a rule for follow_up: 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 TalkDB. Nothing to install.

What risk level is follow_up? +

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

Can I rate-limit follow_up? +

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

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

follow_up is provided by the TalkDB MCP server (nitin-gupta1109/talkdb). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.