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zellij-attention

★ 54 Open GitHub ↗

Zellij plugin that adds notification icons to tab names when panes need attention. Designed for Claude Code.

// repository documentation

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# zellij-attention

Know which Zellij tab needs your attention — without checking each one.

A standalone Zellij WASM plugin that adds notification icons directly to tab names. Works with both the default Zellij tab bar and [zjstatus](https://github.com/dj95/zjstatus). When an external process (like Claude Code) needs your attention, the tab is renamed with an indicator — e.g., `terminal` becomes `terminal ⏳`. Focusing the pane clears the notification automatically.

https://github.com/user-attachments/assets/646effc0-1c24-413d-bef3-3d85591cd89b

## Features

- **Tab-level notifications** — icons appended to tab names, visible at a glance
- **Auto-clear on focus** — switch to the pane and the notification disappears
- **Two notification states** — ⏳ waiting (needs input) and ✅ completed (task done)
- **Memory-only state** — lightweight, no disk I/O; stale icons cleaned up automatically on restart
- **Configurable icons** — use any character or emoji as notification indicator
- **Standalone plugin** — works independently, no zjstatus or other status bar plugins needed

## Installation

Download the plugin and add it to your Zellij config:

```bash
mkdir -p ~/.config/zellij/plugins
curl -L https://github.com/KiryuuLight/zellij-attention/releases/latest/download/zellij-attention.wasm \
  -o ~/.config/zellij/plugins/zellij-attention.wasm
```

Add to `~/.config/zellij/config.kdl`:

```kdl
load_plugins {
    "file:~/.config/zellij/plugins/zellij-attention.wasm" {
        // All options are optional — defaults shown
        enabled "true"
        waiting_icon "⏳"
        completed_icon "✅"
    }
}
```

The plugin loads in the background with no visible pane — it won't consume any screen space.

## Quick Start

After installing, restart Zellij and test with a pipe command:

```bash
# Send a waiting notification to the current pane
zellij pipe --name "zellij-attention::waiting::$ZELLIJ_PANE_ID"

# Send a completed notification
zellij pipe --name "zellij-attention::completed::$ZELLIJ_PANE_ID"
```

Switch to the tab — the icon should appear. Focus the pane to clear it.

## Claude Code Integration

Automate notifications with [Claude Code hooks](https://docs.anthropic.com/en/docs/claude-code). Add to `~/.claude/settings.json`:

```json
{
  "hooks": {
    "Notification": [
      {
        "matcher": "",
        "hooks": [
          {
            "type": "command",
            "command": "zellij pipe --name \"zellij-attention::waiting::$ZELLIJ_PANE_ID\""
          }
        ]
      }
    ],
    "Stop": [
      {
        "hooks": [
          {
            "type": "command",
            "command": "zellij pipe --name \"zellij-attention::completed::$ZELLIJ_PANE_ID\""
          }
        ]
      }
    ]
  }
}
```

| Hook           | Notification | Meaning                  |
| -------------- | ------------ | ------------------------ |
| `Notification` | ⏳ waiting   | Claude needs user input  |
| `Stop`         | ✅ completed | Claude finished the task |

## Configuration

All configuration is optional — the plugin works out of the box.

| Option           | Default  | Description                     |
| ---------------- | -------- | ------------------------------- |
| `enabled`        | `"true"` | Enable or disable notifications |
| `waiting_icon`   | `"⏳"`   | Icon for waiting state          |
| `completed_icon` | `"✅"`   | Icon for completed state        |

Icons are appended to the end of tab names (e.g., `terminal ⏳`).

## Pipe Message Format

```
zellij-attention::EVENT_TYPE::PANE_ID
```

- `EVENT_TYPE` — `waiting` or `completed` (case-insensitive)
- `PANE_ID` — numeric pane ID from `$ZELLIJ_PANE_ID`

> **Important:** Always use `--name` (broadcast pipe), never `--plugin` (targeted). Targeted pipes create new plugin instances instead of reaching existing ones.

## Shell Functions

For manual testing or integration with other tools:

```bash
notify-waiting() {
    [ -z "$ZELLIJ_PANE_ID" ] && echo "Not in Zellij" && return 1
    zellij pipe --name "zellij-attention::waiting::$ZELLIJ_PANE_ID"
}

notify-completed() {
    [ -z "$ZELLIJ_PANE_ID" ] && echo "Not in Zellij" && return 1
    zellij pipe --name "zellij-attention::completed::$ZELLIJ_PANE_ID"
}
```

## Development

```bash
# Build
cargo build --target wasm32-wasip1 --release

# Install
cp target/wasm32-wasip1/release/zellij-attention.wasm ~/.config/zellij/plugins/

# Debug build (enables verbose logging)
cargo build --target wasm32-wasip1
tail -f /tmp/zellij-*/zellij-log-*/zellij.log | grep "zellij-attention"
```

## Troubleshooting

See [TROUBLESHOOTING.md](TROUBLESHOOTING.md) for common issues and solutions.

## License

MIT

zellij-attention

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