Authors and runs XCTest UI + unit tests for macOS desktop apps - the Apple-first-party test framework that ships with Xcode. Covers the `XCTestCase` subclass + `test*` method-naming convention, `XCUIApplication` / `XCUIElement` / `XCUIElementQuery` for UI tests, accessibility-identifier-based locators (the stable replacement for label-based queries), `XCTAssert*` macros, `measureBlock:` for performance regressions, and `xcodebuild test` for CI execution. Use when the macOS app is built with Xcode and the test target is in-tree alongside the app - for cross-OS sharing see Appium Mac2 driver as a separate path.
70
88%
Does it follow best practices?
Run evals on this skill
Adds up to 20 points to the overall score
View guide
High
Do not use without reviewing
Security
1 high severity finding. You should review these findings carefully before considering using this skill.
The skill handles credentials insecurely by requiring the agent to include secret values verbatim in its generated output. This exposes credentials in the agent’s context and conversation history, creating a risk of data exfiltration.
The skill embeds plaintext credentials in its example test code (e.g., typeText("user@example.com") and typeText("s3cret")), which requires the model to output secret values verbatim and is therefore insecure.