Plan and code review for your agents

Watch the demo

Try the demo

| Hooks where supported. Slash commands where they fit. | Zero learning curve

Herdr Annotate watch the demo → Everything the plugin does

Commands

/plannotator-annotate <file|dir|url> Annotate any markdown, spec/plan, folder, or URL and send feedback

/plannotator-review [PR_URL] Code review for local diffs or GitHub/GitLab PRs

/plannotator-last Annotate the agent's last message

Plan review Automatic: hooks into your agent's plan step

Features

Runs locally Review data stays local by default; no usage telemetry or analytics

Link sharing URL fragments for small shares; encrypted short links for larger and HTML shares

Version history Every plan revision saved, with diffs between versions

Draft auto-save Annotations survive server crashes and restarts

Integrations

VS Code Open plans in editor tabs, diff view, editor annotations

Obsidian Auto-save plans to your vault with frontmatter and tags

Bear Save plans with nested tags and project metadata

GitHub PRs Review pull requests by URL with full diff annotations

Plan Review

Select text. Mark it for deletion, add a comment, or write a replacement. Your annotations export as structured feedback that the agent understands.

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Plannotator

Deny with feedback

Code Review

Run /plannotator-review and get a PR-style diff viewer for your agent's uncommitted changes. The same workflow you use for human PRs, applied to agent output.

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Plannotator · Code Review

Send feedback

How it works... simple.

Plan Review Code Review

Plannotator · Plan Review

1 Use your agent normally

Work with your coding agent exactly as you do today. When it proposes a plan, Plannotator intercepts the approval step automatically.

Instead of squinting at terminal text, you get a proper review workspace. Annotate inline, mark what needs to change, then approve or deny with structured feedback. You own the specification.

Your annotations are sent directly to the agent as structured feedback. No copy-pasting, no retyping. The agent revises based on exactly what you said.

Integrations for Claude Code, OpenCode, Pi, Codex, and VS Code. Works with any agent that supports plan mode.

Workspaces is the hosted layer for teams — shared plans, review history, integrations, and verification standards. The local plugin stays free & open source.

Your next plan deserves more than a rubber stamp.

Shape what gets built. Own what ships.

Watch the demo

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Licensed under MIT or Apache 2.0, at your option.