Plan and code review
for your agents.
Annotate Own your agent plans before they run. Review agent-written code with a full diff viewer. Share with your team. Your feedback goes straight back to the agent.
Runs locally | natively integrates with agents | free & open source
Plan Review
Annotate the plan before it executes
Select text. Mark it for deletion, add a comment, or write a replacement. Your annotations export as structured feedback that the agent understands.
- • Inline comments on any section
- • Mark deletions to remove scope
- • Version history tracks every revision (plan diffs)
- • Diff view shows what changed between iterations
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Code Review
Review the diff before you commit
Run /check-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.
- • Side-by-side or unified diff view
- • File tree navigation
- • Line-level annotations with code suggestions
- • Stage or unstage files before committing
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How it works... simple.
Use your agent normally
Work with your coding agent exactly as you do today. When it proposes a plan, Check intercepts the approval step automatically.
Review on a real surface
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.
Feedback flows back
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.
Everything the plugin does
Commands
Plan review Automatic: hooks into your agent's plan step /check-annotate <file|dir|url> Annotate any markdown, spec/plan, folder, or URL and send feedback /check-last Annotate the agent's last message /check-review [PR_URL] Leave blank for local changes, or pass a GitHub/GitLab PR URL check annotate --collab <file> Open a live session teammates join by link to co-annotate in real time Features
Integrations
Integrations for Claude Code, OpenCode, Amp, Droid, Codex, Copilot CLI, Gemini CLI, Kiro, Pi, and VS Code. Works with any agent that supports plan mode.
Review the plan together, in real time.
Run check annotate --collab
and hand teammates a link. Everyone annotates the same document at
once, each comment tagged by author. The host submits one merged set
of feedback to the agent — no copy-paste, one shared review surface.
Your next plan deserves more than a rubber stamp.
Shape what gets built. Own what ships.
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