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').

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 skill is lean and efficient. It uses a table for when-to-use/skip, compact code examples, and avoids explaining concepts Claude already knows. Every section earns its place without padding.

Provides concrete, executable tool calls (grep_search, vscode_listCodeUsages) with realistic patterns and file paths. The example context map output is specific and copy-paste ready. Steps are directly instructive rather than descriptive.

Clear 4-step sequence (Entry Points → Trace Outward → Trace Inward → Build Map) with a validation checkpoint that specifies running grep_search/vscode_listCodeUsages and confirming with typecheck. The workflow is well-ordered with explicit verification before proceeding.

The skill provides a concise overview with an inline minimal example, then references REFERENCE.md for the full template and Team Lead integration snippets — a clean one-level-deep reference that is clearly signaled.