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Plannotator Live (built from scratch at the hackathon) is a collaborative planning review surface for agentic engineering; built for the world where coding agents are fast but planning and review have become the new bott

Code Video Cerebral Valley

Core trick

Encrypts plan documents end to end so the server stores ciphertext, while collaborators annotate agent-written plans in a shared review view.

Tags

dev toolssecurity

Description

Plannotator Live (built from scratch at the hackathon) is a collaborative planning review surface for agentic engineering; built for the world where coding agents are fast but planning and review have become the new bottlenecks. It reframes "PRs" as Plan Reviews: a multi-player workspace where humans and their agents align on the plan upfront, with end-to-end zero-knowledge encryption so plans stay private. The goal is better generated outcomes through better collaboration before code is ever written.
backnotprop/plannotator★ 9.7k727 forksTypeScriptApache-2.0Created Dec 28, 2025 · last push Oct 27, 2026

README excerpt

<p align="center">
  <img src=".github/assets/banner.webp" alt="Plannotator" width="640" />
</p>



<p align="center">
  <strong>Everything you need to annotate and stay in the loop with your agents</strong><br/>
  <strong>Markdown Review • Code Review • HTML Artifacts</strong><br/>
  <sub>Annotate plans, specs, markdown, and HTML before implementation. Review diffs and PRs. Send feedback to your agent.</sub>
</p>

<p align="center">
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