Watch user sessions, find real bugs and open only verified fixes

A former Robinhood engineer built an open-source agent that investigates user-facing issues and opens a PR only when it can verify the fix.

Difficulty
IntermediateOur rating
Time to build
Not reportedOur estimate
Monthly cost
Not reported
Revenue
Not reportedWe only show revenue the source states
Engagement
40 HN points11 comments · fetched Oct 15, 2026

What they did

aray07 built Opslane after quarterly bug bashes at Robinhood where only bugs they could reproduce got fixed.

How it went

Open source with docs and a demo.

Worth knowing

Requiring verification before a PR keeps noise down.

Builder recipe

Our own starting point, written from the source. Adapt it to your setup.

Stack

  • Opslane
  • Session data
  • GitHub

Steps

  1. Open the repo in your coding agent and describe the goal and constraints.
  2. Ask for a plan first, then let it implement in small, reviewable steps.
  3. Run the tests or the app after each step and feed errors back.
  4. Review the diff before merging.

Starter prompt

From yesterday’s sessions, find user-facing errors that affected 3+ users, reproduce one, and open a PR only if a test proves the fix.

Open the repo ↗ (opens in new tab)

Tags

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