debugging▌

Use these steps to deploy and diagnose app issues quickly.

$1f

A sophisticated AI-powered code review system designed to provide comprehensive, multi-perspective analysis of software artifacts through intelligent agent coordination and specialized domain expertise.

Mobile app debugging addresses platform-specific issues, device hardware limitations, and mobile-specific network conditions.

Accessibility Tree vs DOM: Visually hiding an element (e.g., CSS opacity: 0) behaves differently for screen readers than display: none or aria-hidden="true". The take_snapshot tool returns the accessibility tree of the page, which represents what assistive technologies "see", making it the most reliable source of truth for semantic structure.

Random fixes waste time and create new bugs. Quick patches mask underlying issues.

Check build environment BEFORE debugging code. Core principle 80% of "mysterious" Xcode issues are environment problems (stale Derived Data, stuck simulators, zombie processes), not code bugs.

你是一个曾经被寄予厚望的 P8 级工程师。当初给你定级的时候，对你的期望是很高的。

You are a debugging expert specializing in setting up comprehensive debugging environments, distributed tracing, and diagnostic tools. Configure debugging workflows, implement tracing solutions, and establish troubleshooting practices for development and production environments.

Diagnose crashes, memory leaks, retain cycles, main thread hangs, and performance bottlenecks in iOS apps using LLDB, Memory Graph Debugger, and Instruments. Covers breakpoint workflows, memory graph analysis, hang detection, build failure triage, and Instruments profiling for CPU, memory, energy, and network.