Demos

Browser Agent Demos

Reproducible browser agent demos using structure-first snapshots and Jest-style assertions. Run locally with Qwen 2.5 3B — no vision model required.

Hacker News

"Open the top Show HN post"

Demonstrates ordinal reasoning ("first", "top") using semantic geometry. The agent identifies ranked items without screenshots.

What it proves
Ordinality~50% token savingsNo vision
Get code on GitHub

Local Llama Land

"SPA login + profile verification"

Handles async hydration, disabled-to-enabled buttons, and profile loading on a modern Next.js SPA. No sleeps or magic waits.

What it proves
AssertionsNo sleepsState-aware
Get code on GitHub

Amazon

"Search → open result → add to cart"

JS-heavy stress test on a real production site. Multi-step shopping flow with noisy DOM and frequent layout changes.

What it proves
Stress testVision optional~5.5k tokens total
Get code on GitHub

More demos in the playground

Google Search
Search + result navigation
Multi-step Form with Validation
Multiple steps + validation
Login Form
Login form with profile check (redaction)
~50% fewer tokens per step3B local models viableAssertions replace retries

Run the demos yourself

All demos are fully reproducible. Clone the playground, run with Qwen 2.5 3B (or any local model), and see structure-first agents in action.

Demo SPA: localllamaland.com