Cline

The plugin gives every Cline session the Inbox tool. Your reply arrives once the session is idle.

Native plug-in · Inbox built in and your reply wakes it

Set it up

Install Plannotator.

curl -fsSL https://plannotator.ai/install.sh | bash
Add the plugin.

cline plugin install npm:@plannotator/cline
Open the Inbox. It connects the agents it finds on this computer.

plannotator inbox

You should see The Inbox opens in your browser. Settings → Agents lists Cline.
plannotator inbox turned the tool on when it found the plugin. Start a new Cline session.

You should see The new session has a plannotator_inbox tool.

It loads no plugins. In MCP Servers → Configure → Configure MCP Servers paste this. Replies don’t wake it this way.

{ "mcpServers": { "plannotator-inbox": { "command": "plannotator", "args": ["inbox", "mcp"] } } }

Merge this into your Plannotator config. It applies to new sessions.

~/.plannotator/config.json

{ "inboxTool": { "cline": true } }

Paste this into Cline.

Send me a test question in the Plannotator Inbox, and read my answer when I tell you I sent it.

You should see A question arrives in the Inbox. Answer it and press Send. The thread reads Delivered to Cline and Cline goes on with your answer.

Cline has no plannotator_inbox tool: Run plannotator inbox once: it turns the tool on when it finds the plugin. If you turned the tool off yourself, turn it on in Settings → Agents. Then start a new session. A running session keeps the tools it started with.
A reply arrives only after you type: Cline stops a plugin after 30 idle minutes. Type anything in that session and the reply comes in.
No Send now: Cline takes a reply only when it is idle, so there is no Send now.
The Inbox doesn’t open: Read ~/.plannotator/inbox/inbox.log. Stop a stuck Inbox process and run plannotator inbox again.

Works in the Cline CLI and Kanban and the desktop app and the new VS Code extension.
Not verified on Windows.