emit_context_event · Mnehmos Synch MCP: Risk & Policy

WHAT IT DOES

What emit_context_event does on Mnehmos Synch

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

WHY IT NEEDS A POLICY

Why emit_context_event needs a policy

The tool emits/creates a context event used for coordinating handoffs between agents. This is a write operation that creates a new event record in the system. It does not delete data, execute code, or involve financial transactions. The severity is medium because misuse could disrupt agent coordination or inject false context into handoff workflows, but it is reversible in nature.

From the tool's definition Emit a context event for agent-to-agent handoff

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

emit_context_event Rate-limited

emit_context_event 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": {
    "emit_context_event": {
      "limits": [
        {
          "counter": "emit_context_event_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 Mnehmos Synch, so you can run agents against it safely.

FAQ

Questions about emit_context_event

What does the emit_context_event tool do? +

Emit a context event for agent-to-agent handoff. Use. It is categorised as a Write tool in the Mnehmos Synch MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on emit_context_event? +

Register the Mnehmos Synch MCP server in PolicyLayer and add a rule for emit_context_event: 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 Mnehmos Synch. Nothing to install.

What risk level is emit_context_event? +

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

Can I rate-limit emit_context_event? +

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

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

emit_context_event is provided by the Mnehmos Synch MCP server (mnehmos/mnehmos.synch.mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.