Run one formatter plan across a mixed-language repo and keep generated edits predictable with treefmt

---
name: run-one-formatter-plan-across-a-mixed-language-repo-c12b114209a2
slug: "run-one-formatter-plan-across-a-mixed-language-repo-and-keep-generated-edits-predictable-with-treefmt"
description: "Use treefmt when an agent needs one repo-level formatting plan across multiple languages instead of stitching formatter commands together ad hoc."
github_stars: 977
verification: "security_reviewed"
source: "https://github.com/numtide/treefmt"
author: "Numtide"
publisher_type: "company"
category: "Code Quality & Review"
framework: "Multi-Framework"
tool_ecosystem:
  github_repo: "numtide/treefmt"
  github_stars: 977
  npm_package: "treefmt"
  npm_weekly_downloads: 18627
---

# Run one formatter plan across a mixed-language repo and keep generated edits predictable with treefmt

Use treefmt when an agent needs one repo-level formatting plan across multiple languages instead of stitching formatter commands together ad hoc.

## Prerequisites

treefmt, the underlying language formatters you plan to invoke, a repository-level treefmt configuration file, and shell access.

## Installation

Basic usage or getting-started notes:
- What if that single command would handle all the formatters in parallel? And only format files that have changed since the previous run?
- When formatters are run in a script, they process all the files they encounter, regardless of whether or not
- You can install treefmt by downloading the binary. Find the binaries for different architectures [here](https://github.com/numtide/treefmt/releases).

- Source: https://github.com/numtide/treefmt
- Extracted from upstream docs: https://raw.githubusercontent.com/numtide/treefmt/HEAD/README.md

## Documentation

- https://treefmt.com/latest/

## Source

- [Agent Skill Exchange](https://agentskillexchange.com/skills/run-one-formatter-plan-across-a-mixed-language-repo-and-keep-generated-edits-predictable-with-treefmt/)