app_crashes

This tool on every surface: CLI · MCP · Python · JavaScript · Go · Java · .NET

The crashes the device recorded — Java exceptions, native signals and apps that stopped responding — newest first, with the line worth reading first. Pass an id from the list to read one report in full; an ANR's leads with its reason and the stuck main thread. Android rate-limits crash records per app, so an app that crashed many times in a few minutes may crash again and add nothing — the next record says how many were dropped. Not drained: a crash is a record, kept across reboots until it ages out, so asking twice shows it twice. Android reads dropbox; an iOS simulator reads the Mac's crash reports for that simulator, and a real iPhone its own, over USB.

Read-only: readOnlyHint is true.

Arguments

Name	Type	Required	What it is
app	string		Only this app's crashes, by package or bundle id.
device	string		Device serial to target, e.g. "emulator-5554". Omit when only one device is running.
driver	string: uiautomator2, uiautomator, wda		Driver to use: "uiautomator2" (default for Android; fast, installs a server APK on first use), "uiautomator" (Android, installs nothing, slower, cannot type), or "wda" (WebDriverAgent: iOS simulators and iPhones).
id	string		Read this report in full, e.g. "data_app_crash@1790357773461".
limit	integer		The newest reports to list, at most. Default 20.

Examples

Each is the arguments of a tools/call request; the first is shown whole.

List one app's crashes

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "app_crashes",
    "arguments": {
      "app": "com.example.shop"
    }
  }
}