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SwiftLee Weekly by Antoine van der Lee

SwiftLee Weekly - Issue 343

Published about 8 hours ago • 5 min read

This week's SwiftLee Weekly covers:

  • iPhone Duo Group Lab Questions and Answers overview
  • MCP for Static Analysis of SwiftUI code
  • It's over! Or at least, part of your engineering career

Enjoy this week's SwiftLee Weekly!

THIS WEEK'S BLOG POST

​How to reduce token usage in Claude Code, Codex, and Cursor​

Reviewing your AGENTS.md and Agent Skills: it's something I do regularly. This time, I found way more improvements than expected, and I'm sharing you the results and best practices.
​avanderlee.com​

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CURATED FROM THE COMMUNITY

​It’s Over​

It's over! No, not about your career as an engineer. Your role just changed, as Jordan explains. If you accept that thought, fun can take over and possibilities will be endless.
​swiftjectivec.com​

​The lag was the debugger​

I can't stress this enough: if you hit a performance issue in your app, verify whether it also happens while running on a device, built with a release configuration. This story proves it again.
​en.kou-works.jp​

​iPhone Duo Group Lab - Q&A​

Missed the iPhone Duo Group Lab? Here's an overview by Anton Gubarenko covering all questions asked and their answers.
​antongubarenko.substack.com​

​Introducing SwiftFairy: Swift and SwiftUI code reviews for coding agents​

A static analysis of your SwiftUI code, served via an MCP. Natalia Panferova released SwiftFairy that does exactly this! I wonder whether and Agent Skill + CLI could be even more effective, but this idea is super interesting and will save you tokens.
​nilcoalescing.com​

​SF Symbols from the Command Line and AI Agents​

Access SF Symbols via the new CLI as Artem Novichkov explains. I do wonder whether an agent really needs this, as I've not run into limits so far, but it's worth exploring!
​artemnovichkov.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

Releasing two apps in a single week

It's crazy times. Never have I been able to develop so fast; never have I been able to press "Release" and move two apps to "Ready for Distribution".

No, I did not sacrifice quality. I'm genuily happy with the quality of boths apps. It’s just that I’ve been able to develop so much faster with the higher quality agent models available today.

Opus 5.5 feels like another step forward. It’s cheaper, super smart, and the code quality it outputs feels like a big step forward. Honestly, GPT-6 isn't available in Cursor, and I’m still hooked on Cursor, so that’s kind of why I can’t really compare the two.

For those who have been following my “From App Idea to 10K MRR”: there’s movement and I’ll be creating a new video soon. The app I released can be found here, but I don’t want to push it too much yet as I’m already submitting a major update. The other app I released? Well… I think you can guess. Expect a big announcement about that later ;-)

UNTIL NEXT TIME

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

Antoine

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SwiftLee Weekly by Antoine van der Lee

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

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