Best Free AI Code Review Agents 2026 – 190+ Skills & Plugins for Claude
Windiff
Windiff is an open-source frontend skill for Claude Code and compatible agents, published by ergrelet. Its author describes it as: “Tool that allows comparing symbol, type and syscall information of Microsoft Windows binaries across different versions of the OS, using a Web UI and/or LLMs.”. The project has 390 stars on GitHub and is available under the GPL-3.0-only license. Add it to your setup with `git clone https://github.com/ergrelet/windiff ~/.claude/skills/windiff`.
Installation
Add Windiff to your agent with:
git clone https://github.com/ergrelet/windiff ~/.claude/skills/windiff Always review a skill's source before installing it. This command comes from the skill's public repository; the linked repo is the source of truth for exact setup steps.
When to use it
Reach for Windiff when you want frontend help from your agent without writing the same instructions every session. Load the skill and the agent picks it up automatically for relevant tasks.
Strengths
- Clear GPL-3.0-only license — safe to read and adapt
- Established project with 390 GitHub stars
- Actively maintained (recent commits)
Topics
Frequently asked questions
- What does Windiff do?
- Tool that allows comparing symbol, type and syscall information of Microsoft Windows binaries across different versions of the OS, using a Web UI and/or LLMs.
- How do I install Windiff?
- Run git clone https://github.com/ergrelet/windiff ~/.claude/skills/windiff in your agent, then reload your skills. Review the source at https://github.com/ergrelet/windiff before installing.
- Is Windiff free to use?
- Yes. Windiff is free and open source under the GPL-3.0-only license, so you can read, run, and adapt it within that license's terms.
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