Lists multiple specific concrete actions: 'Maps file dependencies', 'flags shared imports', 'groups files for safe parallel editing'. These are clear, distinct capabilities.

Clearly answers both what ('Maps file dependencies, flags shared imports, groups files for safe parallel editing') and when ('Use when planning a refactoring, analyzing change impact, or understanding which files a modification will affect') with explicit trigger guidance.

Includes natural terms users would say: 'refactoring', 'change impact', 'dependencies', 'imports', 'parallel editing', 'modification will affect'. These cover common ways developers describe dependency analysis needs.

Occupies a clear niche around pre-change dependency analysis and parallel editing safety. The combination of dependency mapping, shared import flagging, and safe parallel grouping is distinctive and unlikely to conflict with general code editing or refactoring execution skills.

The content is lean and efficient. Every section earns its place — the when-to-use table is compact, steps are terse, and anti-patterns are bullet points. No unnecessary explanations of what grep or imports are.

Provides concrete, executable tool calls (grep_search with actual patterns, vscode_listCodeUsages with example arguments) and a complete output template. The examples use realistic file paths and are copy-paste adaptable.

The 4-step sequence is clearly ordered (entry points → trace outward → trace inward → build map) with a validation checkpoint that specifies both tool-based verification and CI command (`pnpm typecheck`). Anti-patterns section adds guardrails.

The skill provides a concise overview with an inline minimal example, then references REFERENCE.md for the full template and integration snippets — exactly one level deep, clearly signaled.