register_session · Universal AI Chat MCP Server MCP

WHAT IT DOES

What register_session does on Universal AI Chat MCP Server

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

WHY IT NEEDS A POLICY

Why register_session needs a policy

Session registration creates or modifies system state (adds a new session to the active sessions list) but is reversible through deregistration or session cleanup. It does not execute arbitrary code, delete data, move funds, or irreversibly modify state. The sibling tool 'list_active_sessions' confirms sessions are tracked as data.

From the tool's definition Tool name 'register_session' indicates creation of a new session record. The server context shows this is part of a communication and shared memory system.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

register_session Rate-limited

register_session 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": {
    "register_session": {
      "limits": [
        {
          "counter": "register_session_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 Universal AI Chat MCP Server, so you can run agents against it safely.

FAQ

Questions about register_session

What does the register_session tool do? +

register_session. It is categorised as a Write tool in the Universal AI Chat 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 register_session? +

Register the Universal AI Chat MCP Server MCP server in PolicyLayer and add a rule for register_session: 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 Universal AI Chat MCP Server. Nothing to install.

What risk level is register_session? +

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

Can I rate-limit register_session? +

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

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

register_session is provided by the Universal AI Chat MCP Server MCP server (marc-shade/universal-ai-chat). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.