backnotprop

Plannotator: visual annotation and review tool for coding agent plans and diffs

Plannotator is an open-source TypeScript tool for visually annotating and reviewing coding agent plans and code diffs, with team sharing and one-click feedback-to-agent capabilities. The project has accumulated ~5,951 GitHub stars with 45 added today, suggesting meaningful community traction. It targets the emerging workflow of human-in-the-loop review for agentic coding systems.