List workflow runs

List recent executions of a workflow. Returns up to `limit` runs (default 20, max 100) ordered newest first, each carrying status, trigger_type, started_at, finished_at, and aggregate counts. Pair with get-workflow-run to drill into a specific execution.

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "list-workflow-runs",
    "arguments": {
      "workflowId": "00000000-0000-4000-8000-000000000000"
    }
  }
}