assistant_axis_session_start · Musubix MCP: Risk & Policy

WHAT IT DOES

What assistant_axis_session_start does on Musubix

AI agents invoke assistant_axis_session_start to trigger actions in Musubix. 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 assistant_axis_session_start needs a policy

This tool executes an operation that initiates a monitoring session, which has side effects (session creation, state initialization). While not reading data or writing/modifying user content directly, it triggers a session lifecycle operation whose downstream effects depend on how the session is used.

From the tool's definition Tool is named 'assistant_axis_session_start' and described as 'Start a new persona monitoring session.' The verb 'Start' indicates it triggers an operation (session initialization) with external state changes (returns session ID and initial state), which is…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

assistant_axis_session_start Rate-limited

assistant_axis_session_start 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": {
    "assistant_axis_session_start": {
      "limits": [
        {
          "counter": "assistant_axis_session_start_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 Musubix, so you can run agents against it safely.

FAQ

Questions about assistant_axis_session_start

What does the assistant_axis_session_start tool do? +

Start a new persona monitoring session. Returns session ID and initial state. It is categorised as a Execute tool in the Musubix MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on assistant_axis_session_start? +

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

What risk level is assistant_axis_session_start? +

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

Can I rate-limit assistant_axis_session_start? +

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

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

assistant_axis_session_start is provided by the Musubix MCP server (@nahisaho/musubix-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.