Agent skill

code-stats

Analyze codebase with tokei (fast line counts by language) and difft (semantic AST-aware diffs). Get quick project overview without manual counting. Triggers on: how big is codebase, count lines of code, what languages, show semantic diff, compare files, code statistics.

Stars 232
Forks 15

Install this agent skill to your Project

npx add-skill https://github.com/aiskillstore/marketplace/tree/main/skills/0xdarkmatter/code-stats

SKILL.md

Code Statistics

Quickly analyze codebase size, composition, and changes.

tokei - Line Counts

bash
# Count all code
tokei

# Compact output sorted by code
tokei --compact --sort code

# Specific languages
tokei --type=TypeScript,JavaScript

# Exclude directories
tokei --exclude node_modules --exclude dist

# JSON output for scripting
tokei --output json | jq '.Total.code'

Sample Output

===============================================================================
 Language            Files        Lines         Code     Comments       Blanks
===============================================================================
 TypeScript             45        12847         9823         1456         1568
 JavaScript             12         2341         1876          234          231
-------------------------------------------------------------------------------
 Total                  57        15188        11699         1690         1799
===============================================================================

difft - Semantic Diffs

bash
# Compare files
difft old.ts new.ts

# Inline mode
difft --display=inline old.ts new.ts

# With git
GIT_EXTERNAL_DIFF=difft git diff
GIT_EXTERNAL_DIFF=difft git show HEAD~1

Why Semantic?

Traditional diff difft
Line-by-line AST-aware
Shows moved as delete+add Recognizes moves
Whitespace sensitive Ignores formatting

Quick Reference

Task Command
Count all code tokei
Compact output tokei --compact
Sort by code tokei --sort code
TypeScript only tokei -t TypeScript
JSON output tokei --output json
Exclude dir tokei --exclude node_modules
Semantic diff difft file1 file2
Git diff GIT_EXTERNAL_DIFF=difft git diff

When to Use

  • Getting quick codebase overview
  • Comparing code changes semantically
  • Understanding project composition
  • Reviewing refactoring impact
  • Tracking codebase growth

Additional Resources

For detailed patterns, load:

  • ./references/tokei-advanced.md - Filtering, output formats, CI integration
  • ./references/difft-advanced.md - Display modes, git integration, language support

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