What problem does it solve? TypeScript projects often accumulate large batches of compiler errors that block implementation progress, and fixing them one by one without a strategy wastes time and introduces regressions. This Skill provides a structured workflow to group errors by root cause, fix the highest-leverage issues first, and verify each change with focused and broad validation runs. ## Core Features & Use Cases - Root-Cause Grouping: Clusters diagnostics from tsc --noEmit by category such as imports, typings, model mismatches, and syntax errors. - Minimal Safe Fixes: Prefers API/name alignment and local fallbacks over aliases, keeping edits small and reversible. - Verified Reporting: Re-runs focused then broader validation and reports error counts before and after, plus remaining blockers by file and category. - Use Case: When a refactor breaks the build with dozens of tsc errors across a Redux Toolkit codebase, use this Skill to triage the errors, fix the root causes in waves, and confirm the error count drops to zero. ## Quick Start Triage the current TypeScript errors in this project, fix the highest-leverage root causes first, and report the error count before and after.