optio-demo 0.2.3

Demo application exercising all optio-core features

optio-demo

A demo application that exercises all optio-core features through a collection of whimsical long-running task trees. Run it, open the dashboard, and watch processes unfold in real time — or cancel, relaunch, and dismiss them from the UI.

Prerequisites

• Docker — for MongoDB and Redis (started automatically by make install)
• Python 3.11+ — for the demo worker
• Node.js — for the dashboard (npx optio-dashboard)

Quick start

# 1. Start infrastructure and install Python dependencies
make install

# 2. Start the demo worker
make run

# 3. In a second terminal, launch the dashboard
make run-dashboard

Then open http://localhost:3000.

From the dashboard you can launch, cancel, and dismiss any process. Click a process name to drill into its task tree with live progress and a log panel.

Task themes

Terraforming Mars (~30 min)

The flagship showcase. A four-level nested task tree covering all progress helpers (sequential_progress, average_progress, mapped_progress), parallel groups with concurrency limits, survive_failure subtasks, and a full cooperative cancellation cascade. Metadata is set at the root and inherited by children.

Organizing Your Home (~10 min)

A household chore tree mixing sequential and parallel subtasks. Demonstrates survive_failure (some chores are optional), non-cancellable tasks (you can't un-wash the dishes mid-stream), and indeterminate progress bars for tasks that can't report a percentage.

The Great Museum Heist (~8 min)

A parallel heist plan where things go wrong. Exercises parallel failure propagation, cascading errors across sibling tasks, and the warning field — the dashboard shows a confirmation popover before you relaunch a task that carries a warning.

Intergalactic Music Festival

Eight generated concert tasks, one per venue (Europa, Titan, Ganymede, …). Each is created from the same template but with different params and metadata (genre, audience size, song count, encore flag). Demonstrates generating task lists programmatically and conditional child execution driven by params.

Your 15-min Wake-up Call

A cron-scheduled task that fires every 15 minutes. Demonstrates cron scheduling and automatic re-launch — after each run completes it returns to scheduled state and fires again at the next interval.

Feature coverage

Feature	Terraforming Mars	Organizing Home	Museum Heist	Music Festival	Wake-up Call
Sequential progress	x			x
Average progress	x
Mapped progress	x
Parallel groups	x	x	x
max_concurrency	x
survive_failure	x	x
Non-cancellable tasks		x
Indeterminate progress		x
Parallel failure / cascading errors			x
warning field			x
params / metadata				x
Metadata inheritance	x			x
Cron scheduling					x
Cooperative cancellation	x
Deep nesting (4 levels)	x
Generated tasks (loop)				x

Widget smoke test (Task 21)

Exercises all four widget primitives end-to-end via a live marimo notebook.

1. docker compose up in this directory to start MongoDB + Redis.
2. pnpm --filter optio-dashboard dev in another terminal to serve the dashboard.
3. python -m optio_demo in a third terminal to run the demo worker (make sure pip install -e . or equivalent has been run so the optio-demo package is available).
4. Open the dashboard in a browser. Authenticate if prompted.
5. Find the "Marimo Notebook" task in the process list. Click launch.
6. Click the running process — the iframe widget should mount and show a live marimo notebook.
7. Interact with the notebook. Reactive updates flow through the widget proxy.
8. Cancel the process. The "session ended" banner overlays the iframe; the marimo subprocess is terminated.
9. Dismiss. The iframe unmounts; widgetUpstream and widgetData are cleared on the process document.