Feyn launches Critic, a code review tool that lets you chat with the AI that wrote it

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Feyn, a company specializing in custom AI models, has released Critic, a code review platform designed to make AI-generated pull requests easier to understand and audit. The tool allows AI agents — such as those running on Codex or Claude Code — to annotate their own code changes, document decisions, and attach supporting evidence like screenshots. Reviewers can then chat directly with the authoring agent through a forked session, keeping the main development thread uninterrupted. Security was a stated priority: forked review sessions are stripped of write permissions, ensuring reviewers cannot inadvertently trigger actions on the developer's machine. Critic is free to use and accessible at critic.run, with all features also available via a bundled MCP interface.

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