@plannotator/opencode

Annotate plans. Not in the terminal.

Interactive Plan Review for OpenCode. Select the exact parts of the plan you want to change—mark for deletion, add a comment, or suggest a replacement. Feedback flows back to your agent automatically.

Obsidian users can auto-save approved plans to Obsidian as well. See details

Watch Demo

Install

Add to your opencode.json:

``json
{
"$schema": "https://opencode.ai/config.json",
"plugin": ["@plannotator/opencode@latest"]
}
`

Restart OpenCode. The submit_plan tool is now available.

> Slash commands: Run the install script to get /plannotator-review:
> `bash
> curl -fsSL https://plannotator.ai/install.sh | bash
> `
> This also clears any cached plugin versions.

How It Works

1. Agent calls submit_plan → Plannotator opens in your browser
2. Select text → annotate (delete, replace, comment)
3. Approve → Agent proceeds with implementation
4. Request changes → Annotations sent back as structured feedback

Features

- Visual annotations: Select text, choose an action, see feedback in the sidebar
- Runs locally: No network requests. Plans never leave your machine.
- Private sharing: Plans and annotations compress into the URL itself—share a link, no accounts or backend required
- Obsidian integration: Auto-save approved plans to your vault with frontmatter and tags

Environment Variables

| Variable | Description |
|----------|-------------|
| PLANNOTATOR_REMOTE | Set to 1 for remote mode (devcontainer, SSH). Uses fixed port and skips browser open. |
| PLANNOTATOR_PORT | Fixed port to use. Default: random locally, 19432 for remote sessions. |
| PLANNOTATOR_BROWSER | Custom browser to open plans in. macOS: app name or path. Linux/Windows: executable path. |

Devcontainer / Docker

Works in containerized environments. Set the env vars and forward the port:

`json
{
"containerEnv": {
"PLANNOTATOR_REMOTE": "1",
"PLANNOTATOR_PORT": "9999"
},
"forwardPorts": [9999]
}
`

Then open http://localhost:9999 when submit_plan is called.

See devcontainer.md for full setup details.

Obsidian Integration

Save approved plans directly to your Obsidian vault.

1. Open Settings in Plannotator UI
2. Enable "Obsidian Integration" and select your vault
3. Approved plans save automatically with:
- Human-readable filenames: Title - Jan 2, 2026 2-30pm.md
- YAML frontmatter (created, source, tags)
- Auto-extracted tags from plan title and code languages
- Backlink to [[Plannotator Plans]]` for graph view

Links

- Website
- GitHub
- Claude Code Plugin

License

Copyright (c) 2025 backnotprop. Licensed under BSL-1.1.