Drive a browser cheaply with a small decision model
Jev reads a table of a page's controls and picks the operation and target; the demo logs into Hacker News and runs a search in 8 seconds.
Source
zurfyx on Hacker News · 2026-10-21 · Project link
Written in our own words. Credit to the original author. Link checked 2026-10-24.
What they did
Jev reads a table of a page's controls and picks the operation and target; the demo logs into Hacker News and runs a search in 8 seconds.
Result (as claimed)
The builder reports about half a cent per task.
Tools they used
Cost: Pricing depends on the tools you pick; check each official pricing page.
Set it up
Map the task
Write the trigger, the inputs, the decisions and the output. Note which steps need a human yes.
Connect the tools
Set up Jev with the narrowest permissions that work. Use a test account or sandbox first.
Build the workflow
Create the steps in order. Add an approval step before anything sends, pays or deletes.
Run it on real but low-stakes data
Run a few times, read every output, and fix prompts or rules that misfire.
Schedule and monitor
Turn on the schedule or trigger, and add a daily summary or alert so you notice failures.
Copy the full setup prompt
Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.
You are helping me set up this AI use case end to end in Claude Code. Goal: Drive a browser cheaply with a small decision model What the original author did: Jev reads a table of a page's controls and picks the operation and target; the demo logs into Hacker News and runs a search in 8 seconds. Reported result (as claimed by the author): The builder reports about half a cent per task. Source: https://news.ycombinator.com/item?id=50181149 Tools they used: Jev Category: Automation & business Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Codex. Goal: Drive a browser cheaply with a small decision model What the original author did: Jev reads a table of a page's controls and picks the operation and target; the demo logs into Hacker News and runs a search in 8 seconds. Reported result (as claimed by the author): The builder reports about half a cent per task. Source: https://news.ycombinator.com/item?id=50181149 Tools they used: Jev Category: Automation & business Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
You are helping me set up this AI use case end to end in Grok Bot. Goal: Drive a browser cheaply with a small decision model What the original author did: Jev reads a table of a page's controls and picks the operation and target; the demo logs into Hacker News and runs a search in 8 seconds. Reported result (as claimed by the author): The builder reports about half a cent per task. Source: https://news.ycombinator.com/item?id=50181149 Tools they used: Jev Category: Automation & business Please: 1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like). 2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure. 3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data. 4. Finish with a checklist to run it again next time.
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