Plannotator
Plannotator is a local browser-based review surface for developers working with AI coding agents. It opens diffs, commits, worktrees, GitHub or GitLab pull requests, and agent plans in a visual interface where humans can annotate lines, tokens, files, descriptions, and comments, then send that feedback back into Claude Code, Codex, OpenCode, Gemini CLI, Copilot CLI, Pi, Kiro, Droid, and other workflows. The AI layer can answer questions about selected diffs, chapter a changeset, or run review agents, but the human keeps final control. It is useful for teams that want coding agents to move fast without losing review discipline. A fresh Show HN result, official product page, and linked open-source licensing verify a strong Smartoolbox fit for code-assistant workflows.
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