How do I install the Code Formatting skill?

Run npx skillmds@latest add blockscout/code-formatting in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Code Formatting safe to use?

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Which AI agents work with Code Formatting?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Code Formatting free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Code Formatting?

blockscout (@blockscout) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Code Formatting by blockscout — Agent Skill

Name: Code Formatting
Author: blockscout

Code Formatting

Fixes code formatting in the Blockscout Elixir project using mix format. Use when you need to fix formatting violations, code style inconsistencies, or ensure consistent code formatting. For linting issues, use `mix credo`. Use this skill for every change made.

blockscout 4418a82 2.0 KB Updated Sep 17, 2026

File contents

Overview

The code-formatting skill ensures all Elixir code in the Blockscout project adheres to the project's code style guidelines using the Mix formatter. Note: mix format handles code formatting only; for linting and code quality issues, use mix credo.

Always run mix format after making any code changes in this repository.

When to Use

After making code changes (especially across multiple files)
When addressing formatting violations or linting errors
Before committing code to ensure consistency
When working with modified files that may have formatting issues
As part of the final preparation before creating a pull request

How to Apply

Run the following command from the workspace root:

mix format

What It Does

Automatically formats all Elixir source files according to the project's .formatter.exs configuration
Fixes indentation, spacing, and line length issues
Ensures consistent code style across the codebase
Makes no semantic changes to the code functionality
Idempotent operation - safe to run multiple times
Does not address linting/code quality issues - use mix credo for those

Example Usage

After implementing changes to token transfer transformation:

mix format

This will format files like:

apps/indexer/lib/indexer/transform/token_transfers.ex
apps/explorer/lib/explorer/chain/block.ex
Any other files with formatting issues

Notes

The formatter respects the project's .formatter.exs configuration file
Some warnings about missing modules may appear but don't affect formatting
The command is fast and can be run as part of your workflow
Results are written directly to files, making changes in-place

---name: code-formattingdescription: Fixes code formatting in the Blockscout Elixir project using mix format. Use when you need to fix formatting violations, code style inconsistencies, or ensure consistent code formatting. For linting issues, use `mix credo`. Use this skill for every change made.---## OverviewThe code-formatting skill ensures all Elixir code in the Blockscout project adheres to the project's code style guidelines using the Mix formatter. **Note:** `mix format` handles code formatting only; for linting and code quality issues, use `mix credo`.Always run `mix format` after making any code changes in this repository.## When to Use- After making code changes (especially across multiple files)- When addressing formatting violations or linting errors- Before committing code to ensure consistency- When working with modified files that may have formatting issues- As part of the final preparation before creating a pull request## How to ApplyRun the following command from the workspace root:```bashmix format```## What It Does- Automatically formats all Elixir source files according to the project's `.formatter.exs` configuration- Fixes indentation, spacing, and line length issues- Ensures consistent code style across the codebase- Makes no semantic changes to the code functionality- Idempotent operation - safe to run multiple times- **Does not address linting/code quality issues** - use `mix credo` for those## Example UsageAfter implementing changes to token transfer transformation:```bashmix format```This will format files like:- `apps/indexer/lib/indexer/transform/token_transfers.ex`- `apps/explorer/lib/explorer/chain/block.ex`- Any other files with formatting issues## Notes- The formatter respects the project's `.formatter.exs` configuration file- Some warnings about missing modules may appear but don't affect formatting- The command is fast and can be run as part of your workflow- Results are written directly to files, making changes in-place

Frequently asked questions