start_agent_conversation

THE RISK

High Risk

Why start_agent_conversation needs a policy

This is an Execute tool because it triggers external operations—agent conversations that can invoke API calls and produce side effects—whose outcomes depend on user input. While not immediately destructive or financial, it has a high severity due to the potential for an AI agent to misuse natural language instructions to trigger unintended API operations.

From the tool's definition The tool description states 'Start a new conversation with an agent. Provide your message and the agent will respond.' This indicates it initiates and executes an agent interaction based on user-provided messages.

Documented attack patterns abuse exactly the kind of access start_agent_conversation gives an agent:

POLICY

How to control start_agent_conversation

PolicyLayer is an MCP gateway — it sits between your AI agents and Automagik Tools, and nothing reaches the server without passing your rules. This is the rule we recommend for start_agent_conversation:

policy.json

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

start_agent_conversation 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.

Create a free account and register Automagik Tools — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Automagik Tools tools

Destructive delete_agent_conversation Delete a conversation session with an agent. This cannot be undone. Destructive delete_credential Delete a stored credential. Destructive delete_message Delete message for everyone. Only works for messages from you (from_me=True), within ~48 h Destructive delete_schedule Delete a schedule. Destructive delete_source Delete a workflow source. Destructive delete_task Delete a task execution. Destructive delete_team_collaboration Delete a team collaboration session. This cannot be undone. Destructive delete_workflow Delete a synchronized workflow.

All 122 Automagik Tools tools →

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Go deeper

High-risk tools in Automagik Tools → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about start_agent_conversation

What does the start_agent_conversation tool do? +

Start a new conversation with an agent. Provide your message and the agent will respond. It is categorised as a Execute tool in the Automagik Tools MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on start_agent_conversation? +

Register the Automagik Tools MCP server in PolicyLayer and add a rule for start_agent_conversation: 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 Automagik Tools. Nothing to install.

What risk level is start_agent_conversation? +

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

Can I rate-limit start_agent_conversation? +

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

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

start_agent_conversation is provided by the Automagik Tools MCP server (namastexlabs/automagik-tools). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Automagik Tools tool call.

Start from Automagik Tools, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →