Claude Code multi-agent

Plannotator

The workspace to stay in the loop and on top of agents - shape, decide, plan, annotate, review code, share with team, and send all feedback to agents with one click.

9,835 stars 735 forksMulti-agent & worktrees Plugin marketplace Source

Install

Inside Claude Code
/plugin marketplace add backnotprop/plannotator

Found in the project README. Check it for setup steps after installing.

From source
git clone https://github.com/backnotprop/plannotator.git

From the README

Everything you need to annotate and stay in the loop with your agents
  Markdown Review • Code Review • HTML Artifacts
  Annotate plans, specs, markdown, and HTML before implementation. Review diffs and PRs. Send feedback to your agent.

    
    
    

    
    
    
    

    

  Watch the og demo · Installation guide · Official site · Visual HTML Skills · Plannotator Inbox · Herdr Annotate

Plannotator

⭐️ NEW: Plannotator Inbox is the missing layer between you and managing multi-agent work.

Plannotator is a local, browser-based review surface for AI coding agents: Claude Code, Codex, Copilot CLI, Gemini CLI, OpenCode, Kiro, Droid, Amp, DeepSeek Harness, and Pi.

It plugs directly into your agent through its hooks and commands. When the agent proposes a plan, html, or finishes writing code, the work opens in your browser and you mark it up, comment, and send feedback directly to the agent for it to act on it.

Review documents, plans, and agent messages

Annotate plans, specs, messages, html, then send the feedback to your agent.

Demo: Plan review with Pi

Code Review

Review local changes or remote PRs. Comment on diffs, suggest code. Your comments go back to the agent. Works with Git, GitButler, Jujutsu (jj), Perforce (p4), GitHub, and GitLab.

  AI built in: ask AI about anything you're reviewing,or launch AI reviews that post comments to the diff.

Annotate HTML Artifacts

Plannotator Inbox

The Plannotator Inbox is one local window where your agents leave you messages, questions, files, and guided reviews while they keep working. Answer a question with a click, annotate a file, and press Send when you can. Nothing holds an agent session open while you do, and your reply goes back…
Read the full README on GitHub

Details

Repository
backnotprop/plannotator
Type
Multi-agent & worktrees
Website
plannotator.ai
Language
TypeScript
License
Apache-2.0
Last updated
3 November 2026
Topics
agentsclaude-codecode-reviewcodexobsidianopencodepi-monoplan-modeskills
Listed in
awesome-claude-code, subinium/awesome-claude-code

FAQ

What is Plannotator?

The workspace to stay in the loop and on top of agents - shape, decide, plan, annotate, review code, share with team, and send all feedback to agents with one click. It is a multi-agent for Claude Code, from backnotprop/plannotator on GitHub.

How do I install Plannotator?

Run /plugin marketplace add backnotprop/plannotator inside Claude Code, then follow the setup in the README.

Is Plannotator popular?

backnotprop/plannotator has 9,835 GitHub stars and 735 forks, and is included in 2 curated Claude Code lists. It was last updated on 3 November 2026.

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