From generated document to refined plan — without leaving your editor or switching context.
Claude generates a plan in your terminal or chat. Open it via Command Palette (Redline Mark: Open in Review Mode) or click a vscode:// link. Any .md file in your workspace opens instantly in review mode.
Click any line to leave a comment directly in the VS Code gutter. Thread replies, resolve when addressed. Comments persist to .redline/ across restarts and file edits.
Hit Send to Claude in the sidebar. Redline Mark builds a structured prompt from all open comments and runs claude "..." in an integrated terminal. Claude revises the plan inline.
Uses VS Code's native Comment Thread API — the same one GitHub PR reviews use. Threads, replies, resolve states. No custom UI to learn.
When Claude revises a file, line numbers shift. Redline Mark's 4-tier anchor engine finds where your comment moved — hash match, context match, fuzzy search — and repairs automatically.
Not just code. Not just PRs. Any .md file in your workspace — implementation plans, specs, RFCs, design docs. node_modules, .redline, and out excluded by default. Add your own via redlineMark.excludePatterns.
Open via Command Palette (Redline Mark: Open in Review Mode) or fire a vscode://redline-mark/open?file=... URI from Claude.ai chat. Both land in the same inline review interface.
Send to Claude builds a precise, structured prompt from every open comment — line number, context, body — and runs it via the integrated terminal. No copy-pasting, no context switching.
All comments are stored as collision-safe JSON in .redline/ at your workspace root. Gitignore them or commit them — your choice. Review state survives restarts, file edits, and Claude revisions.
Claude Code's built-in review is powerful — for GitHub PRs on Teams/Enterprise. Redline Mark is for every developer reviewing every document Claude writes.
| Capability | Claude Code Review | Redline Mark |
|---|---|---|
| Inline line comments | ✓ GitHub only | ✓ Any file |
| Works on .md docs | ✗ | ✓ |
| Human annotates back | ✗ | ✓ |
| Local / offline | ✗ | ✓ |
| Free for individuals | ✗ $15–25/review | ✓ Always free |
| Requires GitHub | Required | Not needed |
| Sends feedback to Claude | ✗ | ✓ via terminal |
Install from the VS Code marketplace, open any Markdown file in your workspace, and start annotating.
Requires VS Code 1.85+ · Claude Code optional but recommended · MIT License
Stop reading plans in chat. Start annotating them where you work. Redline Mark makes the feedback loop between you and Claude tighter than ever.