Plannotator
6.7K+ stars (GitHub, July 2026). Puts a human review-and-annotate step between an agent's plan and its execution — and between its diff and your merge — with…
Local, browser-based review surface for AI coding agents: annotate plans, specs, markdown, and HTML artifacts; review diffs and remote PRs with inline comments and code suggestions; send feedback straight back to the agent. Plugs into Claude Code, Codex, Copilot CLI, Gemini CLI, OpenCode, Kiro, Droid, Amp, and Pi via hooks and commands. Works with git, jj, p4, GitHub, and GitLab.
- Review and annotate Claude's plans before execution begins
- Share marked-up implementation plans with your team
- Send feedback on proposed changes with a single click
6.7K+ stars (GitHub, July 2026). Puts a human review-and-annotate step between an agent's plan and its execution — and between its diff and your merge — without leaving the local machine.
Teams doing plan-then-execute workflows who want visual review and annotation of Claude's plans before execution.
How to Get It
This is a methodology or approach. Paste the instructions below into a Claude conversation to get started.
curl -fsSL https://plannotator.ai/install.sh | bash # then in Claude Code: /plugin marketplace add backnotprop/plannotator && /plugin install plannotator@plannotator
Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.
After installing, paste this into Claude:
Help me review and annotate Claude's plans before execution begins
Trust Signals Reviewed
Community Pulse Active
Discussed on Hacker News, Reddit
- Plannotator now ships enhanced plan mode (or integrates other planners) — Reddit · 39 pts
- Plannotator: Interactive plan mode for Claude Code (Plugin/Hooks) — Reddit · 10 pts
- Show HN: jj diff review integrated with agents — Hacker News · 5 pts
3 mentions across 2 sources
Reviewer notes
Reviewed review. These are observations, not a security certification.
3.3K stars. Visual plan review tool. No network required — URL-compressed sharing.
Community tool. Source reviewed.
2026-05-10: Fills a real gap if your team is doing plan-then-execute with Claude Code and needs a review gate before the agent runs — think PR review, but for plans. The URL-compressed, no-network sharing is practical for air-gapped or security-conscious shops, though you'll hit size limits on anything sprawling or deeply recursive. Production adoption is nearly zero despite solid star count, so treat this as a workflow experiment rather than a proven team tool. Pairs naturally with Claude Code's native planning output; no good apples-to-apples alternative exists yet.
Things to check
- Requires manual setup as a Claude plugin and works best for well-scoped, discrete plans; very complex or recursive agent plans may be difficult to annotate visually. URL-compressed sharing has practical size limits.
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Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.
Evaluation
3.3K stars. Visual plan review tool. No network required — URL-compressed sharing.