migration_exchange · Slack MCP: Risk & Policy

WHAT IT DOES

What migration_exchange does on Slack

AI agents call migration_exchange as a supporting operation in Slack workflows.

WHY IT NEEDS A POLICY

Why migration_exchange needs a policy

The description is empty, so the tool's behavior cannot be determined from it alone. The name 'migration_exchange' suggests it may relate to data migration or exchanging data between systems, which could span Write or Execute categories. However, in the Slack API context, 'migration.exchange' is a method used to convert classic Slack user IDs to new workspace IDs — a Read/lookup operation.

From the tool's definition Tool name is 'migration_exchange' but description is empty or uninformative.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

migration_exchange Rate-limited

migration_exchange gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "migration_exchange": {
      "limits": [
        {
          "counter": "migration_exchange_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Slack, so you can run agents against it safely.

FAQ

Questions about migration_exchange

What does the migration_exchange tool do? +

migration_exchange. It is categorised as a Other tool in the Slack MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on migration_exchange? +

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

What risk level is migration_exchange? +

migration_exchange is a Other tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit migration_exchange? +

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

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

migration_exchange is provided by the Slack MCP server (karbassi/slack-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.