profile

SwiftLee Weekly by Antoine van der Lee

SwiftLee Weekly - Issue 316

Published 5 days ago • 4 min read

This week's SwiftLee Weekly covers:

  • Apple's Hidden Collection & Sequence APIs
  • The "One More Prompt" risk
  • Generally useful prompts for app development

Enjoy this week's SwiftLee Weekly!

THIS WEEK'S BLOG POST

​The “One More Prompt” risk of agentic coding​

I hope you enjoy learning alongside my AI journey. Here's the next learning I want to share with you: the "One More Prompt" trap.

SPONSORED

​iOS auth eating your time?​

Clerk’s SwiftUI SDK drops sign-in, MFA, profiles in 5 lines. Native look, no UI grind. Learn more.

CURATED FROM THE COMMUNITY

​WWDC26 Apple Park Special Event​

June 8-12 are the dates! Submissions to be part of the random selection process will be accepted until 11:59 p.m. PT on Monday, March 30. I booked my flight already: there are so many developers from the community, many events, and even a side conference called CommunityKit. See you there?
​developer.apple.com​

​Apple’s Hidden Collection and Sequence APIs You Should Be Using​

I love the Swift Algorithms open-sourced package and wish that it were part of the standard library. Sagar Unagarexplains why you should use it.
​sagarunagar.com​

​Review your own AI-generated code​

Agentic coding doesn’t just introduce you to new tools, they also challenge your habits. Scott Berrevoets shares this experience of working with agents at Lyft.
​scottberrevoets.com​

​Generally Useful Prompts​

Learn from experience, learn from fellow engineers using AI. Here’s David Smith sharing his generally useful prompts.
​david-smith.org​

​Expanding Animations in SwiftUI Lists​

Expanding list animations in SwiftUI: I’m sure we’ve all had to build them at least once. Pavel Zak shares different approaches and a final winner.
​nerdyak.tech​

​Copy-On-Write in Swift: Semantics, Misconceptions, and a Custom Implementation​

COW always makes me think of something else, but in Swift, it can lead to interesting improvements, as Artem Mirzabekian explains.
​livsycode.com​

SWIFT EVOLUTION

An overview of last week's Swift Proposal state changes. Check them out when they're in review, as it's your opportunity to influence the direction of Swift's future.

WHAT I'M WORKING ON

Let's Vision talk, RocketSim 15.0, and a new Agent Skill

Yes, I've had a busy week!

This Wednesday, I'll be flying towards Shanghai to present my talk "What 15 Years of Coding Didn’t Prepare Me For: Agent-Driven Development". Besides preparing slides and animations, I'm working hard on the next RocketSim release.

This week's article showcases a video of that release already, but it's essentially a major release with many improvements. One of the biggest new features is an actual post-editor for screenshots and videos:

I'd love for you to try it out, so I can release it right after returning back home from the Let's Vision conference.

​Join the TestFlight​

Finally, I'm working on a new Agent Skill. I've already been trying it out with several developer friends, but I'm looking for more teams to try it out. If your team is using Agent Skills already and willing to try it out, reply to this email with your GitHub handle and I'll get you onboarded. I can't share much about it yet, but let's say it will speed up your development workflow quite a bit!

UNTIL NEXT TIME

Continue your Swift development journey

I hope you've enjoyed this week's content. You don't have to wait till next Tuesday for more insights, I share every day on these channels:

Or earn lifetime access to RocketSim & my Swift Concurrency Course by becoming an affiliate of my newsletter.

Thank you so much for your support, and until next Tuesday,

Antoine

Thanks for being a SwiftLee subscriber!
​
All my content is available to you for free. Like what I do and want to support me?
​Buy me a coffee or try RocketSim, an Essential Developer Tool as recommended by Apple.

This newsletter is built with Kit.
Need my experience? Book a 1:1 with me.

You're receiving this because you signed up for SwiftLee Weekly. If you'd prefer not to hear from me, you can manage your preferences here.

SwiftLee Weekly by Antoine van der Lee

Join 27K+ iOS Developers who get weekly updates on Swift & SwiftUI.

Swift Evolution updates, 5 top community articles covering Swift development topics.

Read more from SwiftLee Weekly by Antoine van der Lee

This week's SwiftLee Weekly covers: 7 (!!) Swift Evolution Proposal changes Xcode 26 Compilation Caching Spacer side effects in SwiftUI Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST Agentic Development: Multi-Project Challenges Using agents for development is great, but I've also learned the hard way that it can cause trouble: goals not reached, mentally overloaded, and the feeling of endless possibilities. If you don't manage your agents well, you'll regret in only weeks from now....

12 days ago • 5 min read

This week's SwiftLee Weekly covers: 4 new Agent Skills for iOS development A 9-Step framework for choosing the right Agent Skill A new iOS 26 SwiftUI Modifier Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST A 9-Step Framework for Choosing the Right Agent Skill It constantly feels like Christmas ever since we get new AI models, new Agent Skills, almost every single week. Yet, just like you would pick your favorite AI tool or model, it's important to also carefully pick the Agent...

19 days ago • 5 min read

This week's SwiftLee Weekly covers: Combining MCP & Agent Skills Optimizing SwiftUI animations using AI Integrating AI into Xcode's Simulator Enjoy this week's SwiftLee Weekly! THIS WEEK'S BLOG POST Using an MCP to perform product optimizations I'm having more and more fun with AI and I'm optimizing by workflow quite a bit. While keeping track of these learnings for aifundamentals.dev, I didn't want to wait with writing this piece of insight. I share actual prompt examples and one of my...

26 days ago • 5 min read