cursor-notifier 0.1.0

Discord webhook notifier for cursor-agent activity in tmux panes

cursor-notifier

Discord webhook notifier for cursor-agent activity in tmux panes.

It polls tmux panes, identifies panes running cursor agent (by foreground TTY process names like cursor-agent or node), and sends a Discord message when activity transitions from active to idle (token counter disappears).

Features

• Foreground process detection via pane TTY (robust to shells/multiplexers)
• Token counter detection with flexible regex (e.g. 12 tokens, 12.3k tokens)
• Discord webhook integration with error details
• Includes pane working directory and git branch in notifications
• .env support for configuration
• Binary entrypoint cursor-notifier when installed

Install (from source)

# Clone and enter
git clone https://github.com/yourname/cursor-notifier.git
cd cursor-notifier

# Optional: use the provided runner
./run_notifier.sh --verbose --dry-run

# Or install locally in editable mode
python3 -m venv .venv
. .venv/bin/activate
pip install --upgrade pip
pip install -e .

Configuration

You can configure via environment variables or a .env file in the project directory (loaded automatically if python-dotenv is installed).

• CURSOR_NOTIFIER_WEBHOOK: Discord webhook URL (required unless --dry-run)
• CURSOR_NOTIFIER_INTERVAL: Poll interval seconds (default: 7)
• CURSOR_NOTIFIER_LINES: Number of lines to scan from tmux buffer (default: 120)
• CURSOR_NOTIFIER_PROCESSES: Comma-separated executable names to treat as cursor agent (default: cursor-agent,node)

Example .env:

CURSOR_NOTIFIER_WEBHOOK=https://discord.com/api/webhooks/123/abc
CURSOR_NOTIFIER_PROCESSES=cursor-agent,node
CURSOR_NOTIFIER_INTERVAL=7
CURSOR_NOTIFIER_LINES=120

Usage

After installation, you can run the console script:

notifier-cursor --verbose

Or from source within this repo:

./run_notifier.sh --verbose

Useful flags:

• --process-names: Comma-separated executable names to monitor (e.g., cursor-agent,node)
• --interval: Polling interval seconds
• --lines: How many recent lines to scan in each pane
• --debug: Log diagnostics for all panes
• --verbose: Print logs
• --dry-run: Do not send Discord messages
• --test [message]: Send a test message to the webhook and exit

Send a quick test:

notifier-cursor --test "hello from cursor-notifier"

How it works

• Enumerates tmux panes with tmux list-panes -a
• For each pane, gets its TTY and uses ps -t <tty> -o comm= to list executable names
• If any of those names match your configured target names, the pane is considered a cursor agent pane
• It captures recent pane output and checks for a token counter; when it disappears, it sends a Discord message with the pane path and git branch

Packaging and publishing to PyPI

This project is set up with pyproject.toml using setuptools and exposes an entrypoint cursor-notifier.

Build

python3 -m pip install --upgrade build twine
python3 -m build

Artifacts will be in dist/ (e.g., cursor_notifier-0.1.0-py3-none-any.whl and .tar.gz).

Test upload to TestPyPI (recommended)

python3 -m twine upload --repository testpypi dist/*
# Then install to verify
python3 -m pip install --index-url https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple cursor-notifier

Upload to PyPI

python3 -m twine upload dist/*

You will need a PyPI account and API token. Store credentials securely, e.g., in ~/.pypirc:

[distutils]
index-servers = pypi testpypi

[pypi]
  repository = https://upload.pypi.org/legacy/
  username = __token__
  password = pypi-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

[testpypi]
  repository = https://test.pypi.org/legacy/
  username = __token__
  password = pypi-XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

Troubleshooting

• 403 on webhook: ensure the webhook URL is correct, the webhook has channel access, and you are not using the Slack-compatible URL. Use --test to get detailed error info.
• No panes detected: confirm tmux is running and that tmux list-panes -a works. Ensure the target process names include the executable you run (e.g., add node).
• Git branch missing: the pane path must be inside a git repo.

License

MIT