12 real things people did with Cursor, with the source and a prompt to try it yourself.
A data scientist tried Cursor on a real project. Prototyping, code completion and commenting went well, but pandas code kept failing and it deleted a bunch of data files.
Result Code completion and commenting both graded A
A 42k-line site with packages to upgrade: 19 easy, 42 medium and 14 hard, by Cursor's own sort. Cursor cleared the easy and medium ones, then a background agent moved it from Remix v2 to React Router v7.
Result Merging agent PRs is "starting to feel routine"
A MongoDB-like database for a hobby project, written spec-first by Claude, Kiro, Qwen Coder and Cursor. They read zero lines of the code and checked it through tests. The first version took about two weeks, part time.
Result Learned more in two months than in 20 years
In SpaceXAI's own guide, engineer Lingxi Li's bots start Cursor cloud agents, check every PR every 30 minutes and merge the low-risk ones. A teammate shipped 2,000+ PRs in a month, they report.
Result Low-risk PRs merge themselves
A messy, roughly 900-line Blender script, abandoned. Cursor turned it into a proper repo for all their 3D designs, then built shapes they described in plain language. "These aren't 1-prompt creations", they add.
Result Now a mono repo for all their 3D designs
A huge, convoluted codebase they'd taken over. One prompt in Cursor's Plan mode found the bugs and planned the fix, then the agent made it, where the client's previous team hadn't.
Result Plan mode found every bug in one prompt
Every visitor picks a World Cup winner, and countries light up by majority vote. When the live dot layer choked on mobile, they rewrote it in WebGL to keep it smooth.
Result Seeded with 4,200 predictions across 183 nations
Their first Raspberry Pi project, built with Cursor and a little ChatGPT: a website that prints visitors' messages on a thermal printer in San Diego. They've been mostly incredibly kind.
Result Mostly incredibly kind messages
Hearing the same tracks again and again? ChatGPT and Cursor built a tool that skips anything recently scrobbled on Last.fm. It starts with Windows and is never turned off.
Result Starts with Windows, never switched off
They knew every detail of the old code. Cursor rewrote it in 2 days with less technical debt, they happily archived the old repo, and the experience pushed them to retrain toward AI evals.
Result Old repo happily archived
Frontend race conditions hide from you. Cursor's debug mode came up with several theories, built a harness to test each one, cleaned up after itself and handed back a fix.
Result Cleaned up its own debugging code
Salesforce wanted faster pull requests without losing quality. After an org-wide Cursor rollout, PR velocity rose 30%+ and legacy-test time fell 85%, according to Cursor.