Agent skill

code-format

Format code using dotnet format, prettier, and other formatting tools. Use when task involves code style fixes, formatting consistency, or preparing code for commit.

Stars 163
Forks 31

Install this agent skill to your Project

npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/development/code-format

SKILL.md

Code Format Skill (Entry Map)

Goal: Guide agent to the exact formatting procedure needed.

Quick Start (Pick One)

  • Format .NET code (C#)references/dotnet-format.md
  • Format JSON/YAML/Markdownreferences/prettier-format.md
  • Format everythingreferences/fix-all.md

When to Use

  • Fix code style violations (indentation, spacing, line endings)
  • Apply .editorconfig rules consistently
  • Prepare code for commit (pre-commit hook formatting)
  • Enforce team coding standards
  • Format specific files or entire codebase

NOT for: building (dotnet-build), testing (dotnet-test), or linting (code-analyze)

Inputs & Outputs

Inputs: target (dotnet/prettier/all), files (specific files or directories), verify (check-only mode)

Outputs: Formatted files (modified in-place), exit code (0=success, non-zero=violations)

Guardrails: Non-destructive (can run with --verify-no-changes), respects .editorconfig, integrates with pre-commit

Navigation

1. Format .NET Codereferences/dotnet-format.md

  • Format C# files (.cs), apply dotnet format rules, fix code style issues

2. Format with Prettierreferences/prettier-format.md

  • Format JSON, YAML, Markdown, JavaScript, TypeScript files

3. Format All Codereferences/fix-all.md

  • Run all formatters in sequence (dotnet + prettier), comprehensive formatting

Common Patterns

Quick Format (.NET)

bash
cd ./dotnet
dotnet format PigeonPea.sln

Quick Format (Prettier)

bash
npx prettier --write "**/*.{json,yml,yaml,md}"

Format Everything

bash
./.agent/skills/code-format/scripts/format-all.sh

Verify Only (Check Mode)

bash
cd ./dotnet
dotnet format PigeonPea.sln --verify-no-changes

Format Specific Files

bash
# .NET
dotnet format --include ./console-app/Program.cs

# Prettier
npx prettier --write ./README.md

Troubleshooting

Format fails: Check error messages. See specific reference files for detailed error handling.

Files not formatted: Check .editorconfig rules, file extensions, ignore patterns.

Pre-commit hook fails: Run formatters manually first, then commit. See references/fix-all.md.

Conflicting styles: .editorconfig takes precedence. Check configuration files.

Performance issues: Format specific projects/files instead of entire solution.

Success Indicators

dotnet format

Format complete in X ms.

No files changed (if already formatted), or list of formatted files.

prettier

✔ Formatted X files

Or no output if all files already formatted.

Integration

Before commit: Use pre-commit hooks to auto-format (configured in .pre-commit-config.yaml)

Manual formatting: Run before pushing code, before PR creation

CI/CD: Verify formatting in CI (use --verify-no-changes / --check mode)

With other skills:

  • Before: code-analyze (fix style first)
  • After: dotnet-build (build clean code)

Configuration Files

  • .editorconfig: Defines formatting rules (indent size, line endings, etc.)
  • .prettierrc.json: Prettier configuration (print width, quotes, etc.)
  • .pre-commit-config.yaml: Pre-commit hook configuration
  • .prettierignore: Files to exclude from prettier formatting

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