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How to tap app controls by label and confirm the result with DSH iOS

Drive a simulator app by accessibility identity and check the expected text appears after each tap.

Authorization notice. DSH iOS is dual-use. Only use it on software, sites and systems you own or have explicit permission to test.

Who it is forA QA engineer testing a flow in an app who wants stable taps that do not depend on screen coordinates.

The problemCoordinate-based taps break when layouts shift, and manual testing is slow to repeat.

The outcomeThe agent taps elements by label or identifier and reports whether the expected text or state appeared.

What you need first

  • A Mac, since the README says the tools fail with an explanatory error on non-macOS hosts
  • DeepSeek Harness (DSH) installed, tested by the README with DSH 0.1.5-rc.1
  • The npm package @zseven-w/dsh-ios, current plugin release 0.1.0-rc.10
  • Xcode tooling for xcodebuild and simctl, which the build and simulator tools use
  • For a real iPhone: a USB connection, the device unlocked, and Apple Development signing for device builds

Steps

  1. Call ios_sim_ui_tree on the booted simulator to list labels and identifiers on the frontmost screen.
  2. Call ios_sim_tap_element with the identifier or label of the control you want.
  3. Add expect_text or expect_gone to the same call so the tap and its check run in one round trip.
  4. If the tap is ambiguous, read the listed candidates and call ios_sim_tap_element again with a more specific identifier.

Prompt for your agent

Using the dsh-ios plugin in the ZSeven-W/dsh-ios repo, call ios_sim_tap_element on the simulator <udid> for the element labeled <label>, with expect_text set to <expectedText>. Report the expected.matched result and the screenshot path. Verify that expected.matched is true before you confirm the step passed.

Caveat. Taps match on label or identifier text, so apps with duplicate or unlabeled controls may return ambiguous matches that need a narrower identifier.

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