subscribe_events

What subscribe_events does on Tenzro Ledger MCP

AI agents call subscribe_events to retrieve information from Tenzro Ledger MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why subscribe_events is rated Low

Subscribing to blockchain events is fundamentally a data retrieval operation with no side effects. The tool watches for and returns matching events but does not alter blockchain state, execute code, move funds, or modify any data. It falls clearly under the Read category with low severity since event subscription cannot be misused to cause damage to systems or data.

From the tool's definition Tool description states it 'Subscribe to real-time blockchain events matching a filter expression' — a read-only operation that retrieves event data without creating, modifying, deleting, or executing transactions.

The rule that runs subscribe_events safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Tenzro Ledger MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For subscribe_events, this is the rule to start with:

{
  "version": "1",
  "default": "deny",
  "tools": {
    "subscribe_events": {}
  }
}

Questions about subscribe_events