LiveUpdated 2026-09-19 18:39 UTC

I make my agent prove every fix by recording a before and after.

Name: I make my agent prove every fix by recording a before and after.
Uploaded: 2026-09-15T16:39:00.000Z
Channel: The Startup Ideas Podcast (SIP) 🧃
Description: I make my agent prove every fix by recording a before and after. Every pull request has both. One page took 850 milliseconds to load. The agent got it down to 61. It wrote the test, measured both numbers, and put them in the pull request. Sometimes the agent watches its own after-video and finds…

This is a dev post classified by Jev as AI dev tools (a tutorial), kept by the Dev Radar because it carries real work, not commentary.

I make my agent prove every fix by recording a before and after. Every pull request has both. One page took 850 milliseconds to load. The agent got it down to 61. It wrote the test, measured both numbers, and put them in the pull request. Sometimes the agent watches its own after-video and finds that the feature is not complete. Then it goes back to build. No one tells it to. You pay for this with setup. Write the two skills first: evidence-driven testing, and before and after. Then review the screenshots and merge.

Posted by The Startup Ideas Podcast (SIP) 🧃 (47.9k followers) 4 days ago · 30 likes · 3.5k views · view the original post on X. Kept by the Dev Radar as AI dev tools.

More dev work like this

Hallmark has been installed 50k+ times! — @nutlope
Your AI coding agents need a workflow, not more babysitting. — @DanKornas
Register by October 7 and save >> https://bit.ly/4vkntyD — @linuxfoundation
Nimble is able to process images! — @madiator
Your agent already solved this. Finding the session is the problem. — @DanKornas
Trains your own large language model from scratch using plain PyTorch. — @tom_doerr
gpt 5.6 terra = gpt 6 astra — @notjazii
your rtx 3060 was running bonsai 2 at 26 tok/s this morning and now does 40 tok/s, i… — @sudoingX

Every post is read and classified by Jev (TypeSafe): what it is, which market it belongs to, and whether the link is a real tool. 12.2k posts from 4.7k X accounts over the last 21 days, 1.4k tools, 12 markets. Collected every 5 minutes, fully re-ranked every hour — last update 2026-09-19 18:39 UTC. Full method.