Can it handle complex TCA actions and effects?

Yes, it provides a blueprint for mapping TCA Actions to ViewModel methods and State properties to observable variables, though complex Effects may require manual review.

Is this skill specific to a certain version of Swift?

It is optimized for projects moving to Swift 5.9+ which supports the @Observable macro, the modern standard for SwiftUI state management.

Does this skill automatically rewrite my code?

It provides the specific migration patterns and tools to help Claude identify and edit your files, converting TCA structs into @Observable classes with corresponding logic.

How does the skill find TCA usage in my project?

It uses targeted grep and find commands to identify Reducers, Store instances, ViewStore wrappers, and @Dependency declarations while excluding folders like Pods and DerivedData.

What is the recommended migration order?

The skill follows a 'bottom-up' approach: migrate leaf features with no children first, then move to parent features, and finally remove the app-level store and Package.swift dependency.

TCA to @Observable Migration

Name: TCA to @Observable Migration
Author: willsigmon

bywillsigmon

•

Mobile Development

Facilitates the systematic removal of The Composable Architecture (TCA) and migration to native SwiftUI @Observable patterns.

This skill provides a structured framework for migrating iOS projects away from Point-Free's Composable Architecture (TCA) in favor of Apple's modern @Observable macro. It includes specialized grep patterns to locate Reducers and Stores, provides transformation templates for converting TCA Features into ViewModels, and outlines a safe removal order—starting from leaf features and moving toward the app-level store—to ensure a stable and verifiable refactoring process.

主な機能

017 GitHub stars

02Automated discovery of TCA components including Reducers, Stores, and ViewStores

03Template-based conversion from TCA Reducer patterns to @Observable ViewModels

04Migration tracking via codebase-wide audit commands

05Dependency audit tools to identify and replace @Dependency usage

06Systematic migration workflow from leaf features to parent containers

ユースケース

01Optimizing app performance by leveraging the Swift 5.9+ @Observable macro

02Refactoring iOS applications to reduce third-party dependency overhead

03Modernizing legacy TCA codebases to use native SwiftUI state management

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add willsigmon/sigstack tca-migration

For use in Claude.ai and ChatGPT

Download Skill