What problem does it solve? Fixing bugs ad hoc often leads to skipped root-cause analysis, untested fixes, and lost progress when sessions are interrupted. This Skill enforces a strict eight-step workflow—requirement confirmation, isolated worktree creation, TDD debugging, code sync with CI regression, continuation check, documentation updates, lint and push, and merge cleanup—so every fix is verified and recoverable. ## Core Features & Use Cases - Isolated Git Worktrees: Creates fix branches (fix/{F编号}-{描述}) in separate worktrees based on the latest develop branch, keeping the main workspace clean. - TDD Debugging Discipline: Requires a failing test before any fix, mandates root-cause investigation, and separates XCTest local feedback from XCUITest CI-only validation. - State Persistence & Recovery: Writes a bug-fix-state.json file after every step so the workflow resumes correctly after session compression or interruption. - Use Case: A user reports a hotkey conflict bug. The Skill scans recent logs, creates an isolated worktree, guides a red-green-refactor TDD cycle, pushes for CI regression, updates test documentation, and merges back with --no-ff. ## Quick Start Ask the AI to start the bug fix workflow for the issue described in your latest log file and follow its step-by-step prompts.