← Glossary

Cursor Rules

Standing instructions the model gets on every request in this project — conventions, stack choices, things it keeps getting wrong. Stored as files under .cursor/rules so they live in the repo and get reviewed like code.

cursor 10 videos 21 mentions also: rules file, project rules, user rules

Where it comes up

Cursor 2.0 Launch

Nov 5, 2025first said at 25:184 mentions

“plan that you've used in a given kind of billing period. Uh, what's the best shape the best way to shape agent behavior? Is it agents.md cursor rules or something else? Um, all of these abstractions are just ways to get context to the agent…”

Cursor for Professional Services

Nov 18, 2025first said at 17:204 mentions

“me to a point where uh those iteration loops are very short. I'm able to compress the entire PRD life cycle in SDLC. Um and building demos PC's and MVPs for clients has never been easier. >> I have question for you. Did you use any project…”

Cursor for Quality Assurance

Feb 12, 2026first said at 10:544 mentions

“here we have a whole test on the pageionation in my app and then also a test on some edge cases, which is kind of cool. Then, it's adding some new ones in our test order. And so all of this is adhering to the the same framework that I uh or…”

Cursor for Security Teams

Feb 5, 2026first said at 12:083 mentions

“being said the models are quite good now um and are only getting better. So I what I found myself is the number of times that I need to completely course correct the model has gone drastically down over time. >> And one thing I would recomm…”

Cursor 101

May 7, 2026first said at 32:531 mention

“cursor rules folder where we are going to use Tailwind for styling. Um in our We're going to create another rule here. Let's say in our React components please make sure to always have type definitions at the top of the file. Okay, so we'll…”

Cursor for Data Science

Feb 19, 2026first said at 32:381 mention

“Thoughts here with regards to cursor rules. Um well ro so I actually haven't used roll at all. Um I use mainly if I want to give something a persona I'll use a skill or a sub agent. Um I'll talk about that a little more here. Um I'm just tr…”

Cursor for Java Developers

Mar 12, 2026first said at 33:081 mention

“being called. So let's actually go back into our IDE and open up one of our rules file. So you can see that I have a Java import MDC. MDC is markdown. C stands for cursor. It's essentially saying that always apply is actually false. You don…”

Cursor Rules, Commands, Hooks, and Skills

Mar 5, 2026first said at 7:241 mention

“you to set other types of rules. And I can create as many rules files as I want in this rules directory. And each one of those files can be assigned a different rule type. So always apply means that the rule is going to be attached to every…”

Model Selection & Token Efficiency

Apr 28, 2026first said at 34:321 mention

“Example, to have the main agent act as an orchestrator of the sub agents. Would this be handled via cursor user rules? Are they applied to the main agent only or are these also added as context to every sub agent? Mhm. Yeah, I think again,…”

Refactoring Legacy Codebases

Jan 8, 2026first said at 31:271 mention

“it sticks around for longer and actually gets committed. So highly recommend that. Highly highly recommend that. Um, >> I see a question from Chris about now that there's a lot of different humans working with a bunch of different AI agents…”