[waleedlatif1]

Summary

• Some apps report hidden Accessibility elements at infinity (Maps does once its search field has focus). The helper copied that position into its reply, and JSONSerialization raises an Objective-C exception on a non-finite number, which Swift cannot catch, so the helper aborted and every later get_app_state on that app crashed it again
• axRect now treats a non-finite position or size as no frame, so those elements come back without coordinates and the rest of the state is read normally
• encodeReply checks JSONSerialization.isValidJSONObject first and throws reply_unencodable, which the main loop sends as an error reply, so no value can abort the helper again

Type of Change

• Bug fix

Testing

• Live fixture gains an element whose accessibilityFrame is at infinity; tests/live.py asserts it comes back without a frame. Passes on this branch's helper; with the pre-fix helper the same test aborts at the first get_app_state with Invalid number value (infinite) in JSON write
• Native tests cover axRect with finite and infinite values and encodeReply refusing a non-finite number (pass)
• Real Maps in a macOS VM: focusing the search field then get_app_state (with and without screenshot) now succeeds, and typing into the field afterwards works with the helper still running; before, the helper aborted every time (the pre-batch helper did too, so this predates the recent computer-use changes)

Checklist

• Code follows project style guidelines
• Self-reviewed my changes
• Tests added/updated and passing (new tests pass the test-audit authoring gate)
• No new warnings introduced
• I confirm that I have read and agree to the terms outlined in the Contributor License Agreement (CLA)

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1 Skipped Deployment

Project	Deployment	Actions	Updated
docs	Skipped		Nov 14, 2026 2:37am UTC

[cubic-dev-ai]

No issues found across 5 files

Confidence score: 5/5

• Automated review surfaced no issues in the provided summaries.
• No files require special attention.

_{Turn on auto-fix | Re-trigger cubic}

[greptile-apps]

Confidence Score: 5/5

[Medium impact] The PR appears safe to merge.

Summary

The helper now reads Accessibility elements with non-finite frames without including their coordinates.

• App-state reads keep running when apps report infinite element frames.

_{Reviews (1) · Last reviewed commit: "fix(computer-use): read elements reporte..." · Reviewed by Greptile}