Show HN: PR comments for Claude Code diffs (open-source) (github.com)

An open-source VS Code/Cursor extension lets you send inline PR-style comments on git diffs directly to Claude Code running in a terminal. Comment threads are created automatically on added lines in a diff (+ hunks) and you can click a "Send" button to push your feedback — with the exact file context — to Claude Code. The extension auto-detects your Claude Code terminal (or lets you pick one), trims context to relevant diff hunks, and encodes precise file/line references using an @file:line syntax so the assistant can navigate code accurately. This is significant for AI/ML engineers and reviewers because it embeds a conversational code assistant directly in the review loop, reducing friction between human reviewers and an LLM-powered helper. Requirements: VS Code or Cursor 1.85+, Git extension enabled, and Claude Code running in a terminal. Installation options include downloading the .vsix from releases or building from the GitHub repo (npm install; npm run compile; vsce package; code --install-extension ...). The project is MIT‑licensed and explicitly built for use with Anthropic’s Claude Code, enabling faster, contextual AI-driven feedback on changes without leaving your editor.