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. It uses a table for when-to-use/skip, numbered steps without unnecessary explanation, and assumes Claude knows how to use grep and code analysis tools. Every section earns its place.

Provides concrete, executable tool calls (grep_search, vscode_listCodeUsages) with realistic patterns, a complete example output map, and a specific validation command (pnpm typecheck). The guidance is copy-paste ready and specific.

The four steps form a clear sequence (entry points → trace outward → trace inward → build map) with an explicit validation checkpoint at the end including both tool-based verification and CI typecheck. The anti-patterns section adds useful guardrails.

The skill references 'REFERENCE.md in this directory' for the full template and Team Lead integration snippets, which is good progressive disclosure. However, no bundle files are provided, so the reference cannot be verified, and the skill could benefit from slightly clearer signaling of what REFERENCE.md contains.