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Refrax

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What Refrax is

Refrax is a free, AI-powered Java refactoring tool implemented in Go. It divides broad code-polishing requests into smaller jobs for agents such as a critic, reviewer, and editor, then runs those jobs autonomously. The agents connect multiple large language models through the A2A protocol. The README lists DeepSeek and OpenAI, and a listed release adds custom providers by URL. Refrax offers pre-built binaries for Linux, macOS, and Windows; building from source requires Go 1.24.1 or later. Some operations require an AI provider API token, which can be passed as a command-line flag, an environment variable, or through a .env file. Refrax does not itself establish that its changes are correct or free of problems. Users can configure reviewer commands, such as Maven tests, to run and report feedback. The command-line tool can show interaction statistics or export them to CSV. The project is MIT-licensed, and its README describes it as an early prototype that may change rapidly.

Who it suits

Refrax may suit Java developers who want to delegate refactoring tasks to AI agents and can supply a provider token for operations that need one. It is a prototype, so it may be a better fit for users prepared for rapid change and to configure checks for proposed changes.

What it does well

  • Free and MIT-licensed
  • Pre-built binaries for Linux, macOS, and Windows
  • Supports DeepSeek and OpenAI providers
  • Can export interaction statistics to CSV

What to know first

  • Early prototype subject to rapid change
  • Does not inherently verify correctness of changes
  • Some operations require an AI provider token
  • Source installation requires Go 1.24.1 or later

Getting started

  1. Open the project website on GitHub.
  2. Choose a pre-built binary for Linux, macOS, or Windows, or build from source with Go 1.24.1 or later.
  3. Provide an AI provider API token by command-line flag, environment variable, or .env file when an operation requires one.
  4. Give Refrax a code-polishing request to split into agent tasks.
  5. Optionally pass reviewer commands with --check and choose console or CSV output for interaction statistics.

Verdict

Refrax breaks Java refactoring work into autonomous agent tasks and supports configurable reviewer checks. Its prototype status and lack of inherent correctness verification are important considerations before relying on its changes.

Questions

Is Refrax free?

Yes. It is listed as free, with a free plan.

Which platforms does Refrax support?

It is available for Linux, macOS, and Windows, with pre-built binaries for each.

Which AI providers can it use?

The project lists DeepSeek and OpenAI, and a listed release adds custom providers by URL.

Does Refrax verify its refactoring changes?

It does not inherently verify that changes are correct or cause no issues. Users can configure reviewer commands, such as Maven tests, to run and report feedback.

Does Refrax require an API token?

Some operations require an AI provider API token. It can be supplied by command-line flag, environment variable, or a .env file.

What license does Refrax use?

The repository states that Refrax is licensed under the MIT License.

Facts from Refrax's own pages

Agent protocol
Refrax integrates multiple language models that communicate using the A2A protocol. · github.com, 3 Oct 2026
AI providers
The README lists DeepSeek and OpenAI as supported providers; the latest listed release also adds custom providers by URL. · github.com, 3 Oct 2026
Authentication
Some operations require an AI provider API token, which can be supplied with a command-line flag, environment variable, or .env file. · github.com, 3 Oct 2026
Autonomy
The README says Refrax can run autonomously for minutes or hours after it is started. · github.com, 3 Oct 2026
Installation
The project offers prebuilt binaries for macOS, Windows, and Linux, and source installation requires Go 1.24.1 or later. · github.com, 3 Oct 2026
License
The repository states that Refrax is licensed under the MIT License. · github.com, 2 Oct 2026
License and maturity
The repository is MIT-licensed and labels Refrax an early prototype subject to rapid change. · github.com, 3 Oct 2026
Maturity
The README describes Refrax as an early prototype subject to rapid change. · github.com, 2 Oct 2026
Protocol
Refrax connects multiple large language models using the A2A protocol. · github.com, 2 Oct 2026
Providers
The README lists DeepSeek and OpenAI as supported AI providers. · github.com, 2 Oct 2026
Purpose
Refrax is an AI-powered agent for refactoring Java code, implemented in Go. · github.com, 3 Oct 2026
Results limitation
Refrax does not inherently verify that its applied changes are correct or cause no issues. · github.com, 3 Oct 2026
Reviewer checks
Users can pass one or more commands with --check for the reviewer agent to run and report feedback to the facilitator. · github.com, 3 Oct 2026
Statistics
The refactor command can export interaction statistics in CSV format or print them to the console. · github.com, 2 Oct 2026
Usage statistics
The CLI can output interaction statistics to the console or to a CSV file. · github.com, 3 Oct 2026
Validation
Refrax does not inherently verify whether changes are correct; users can configure reviewer checks with commands such as Maven tests. · github.com, 2 Oct 2026
Workflow
It breaks larger code-polishing requests into smaller tasks for agents such as a critic, reviewer, editor, and facilitator. · github.com, 3 Oct 2026

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