Skills Guide

Swift Binding Fixer

VerifiedSafe

Fixes SwiftUI '$' binding errors ('cannot find $viewModel') by replacing @State or plain properties with @Bindable on @Observable ViewModels in the Leavn app. Use this when encountering sheet presentation or other binding errors in SwiftUI views.

Download and use
Sby Skills Guide Bot
DevelopmentIntermediate
6/2/2026
Claude Code
#swift#swiftui#binding#observable#fix

Recommended for

Backend developerClaude CodeCode reviewFrontend developerFullstack developerRefactoring

Automated summary

Fixes SwiftUI binding errors caused by missing @Bindable attribute on @Observable view models.

Strengths

  • Quickly resolves common '$viewModel' compile errors in SwiftUI.
  • Provides specific patterns for common view models (Home, Community, etc.).
  • Uses grep to locate error and then edits file programmatically.

Limitations

  • Only works when the error is specifically 'cannot find $viewModel' - does not handle other binding errors.
  • Assumes the view model is already @Observable; will not work if it's not.
  • May require manual adjustment if the view model needs to remain @State for other reasons.
When to use it

Use this skill when you encounter a SwiftUI compile error 'cannot find $viewModel' and the view model is an @Observable class or struct.

When not to use it

Do not use this skill for other SwiftUI binding errors or when the view model is not declared with @Observable.

Security analysis

Safe
Quality score85/100

The skill only uses safe tools (Read, Edit, Grep) for local code editing tasks. No network access, destructive commands, or data exfiltration risk.

No concerns found

How this analysis is made

Examples

Fix home sheet binding
Fix the 'cannot find $viewModel' error in HomeView - it uses HomeViewModel and a sheet.
Fix community creation binding
The CommunityView has a $viewModel error for showing the create community sheet. Fix it by adding @Bindable.

name: swift-binding-fixer description: Fix SwiftUI binding errors ($var issues) by adding @Bindable to @Observable ViewModels in Leavn app allowed-tools: Read, Edit, Grep disable-model-invocation: false context: fork user-invocable: true argument-hint: "[context]"

Swift Binding Fixer

Instructions

Fix "cannot find '$viewModel'" errors:

  1. Find the error:

    grep "cannot find '\$viewModel'" build_output.txt

  2. Read the view file:

    • Check if viewModel is @Observable type
    • Look for @State var viewModel or var viewModel
    • Find all $viewModel.property usages

  3. Apply fix:

    // BEFORE
@State var viewModel: MyViewModel
// OR
var viewModel: MyViewModel

// AFTER (if using $viewModel)
@Bindable var viewModel: MyViewModel

  4. Common Leavn patterns:

    • HomeViewModel: Use @Bindable for sheet bindings
    • CommunityViewModel: Use @Bindable for showCreate* bindings
    • SettingsViewModel: Use @Bindable for alert bindings
    • SermonAIView: Use @Bindable for showing* bindings

Use this skill when: $viewModel errors, @Observable binding issues, sheet presentation errors

From the file to a first result

The download contains exactly the content displayed on this page. This copy may differ from the latest version in the source repository.

View the source and supporting files

This download contains SKILL.md only. Any scripts, references, templates and dependencies are not included. Get the required files from the source, preserving their directory structure, before continuing.

1. Download the file

Download SKILL.md

From the root of a test project, save the file as .skill-downloads/swift-binding-fixer-mmh8qrql/SKILL.md, or use the command below. This folder is for inspecting the skill before installation.

Command for macOS/Linux or WSL: requires a POSIX shell and curl. On Windows without WSL, use the download button and create the folder manually.

mkdir -p '.skill-downloads/swift-binding-fixer-mmh8qrql' && curl --fail --show-error --location 'https://skills-guides.com/api/skills/swift-binding-fixer-mmh8qrql/download' --output '.skill-downloads/swift-binding-fixer-mmh8qrql/SKILL.md.part' && mv '.skill-downloads/swift-binding-fixer-mmh8qrql/SKILL.md.part' '.skill-downloads/swift-binding-fixer-mmh8qrql/SKILL.md'

2. Check prerequisites

Read SKILL.md before using it. If it references scripts or external services, inspect them and prepare the required access in your test environment.

Tools declared by the author (check availability in your agent): Read, Edit, Grep

No recognized prerequisites section in this file. This does not mean it is self-contained: libraries, tools and access requirements may be mentioned elsewhere in the content or source repository.

The platforms on this page are catalog indications. The paths below follow tool documentation; they do not prove this skill has been run in those tools. No minimum tool version is confirmed for this listing.

3. Load the skill

After inspection, copy the complete folder into your project using one of the commands below, then open a new tool session. The command stops if a folder with the same name already exists: compare the files before replacing it.

Claude Code
test -f '.skill-downloads/swift-binding-fixer-mmh8qrql/SKILL.md' && test -s '.skill-downloads/swift-binding-fixer-mmh8qrql/SKILL.md' && mkdir -p '.claude/skills' && test ! -e '.claude/skills/swift-binding-fixer' && cp -R '.skill-downloads/swift-binding-fixer-mmh8qrql' '.claude/skills/swift-binding-fixer'

OpenSkills

OpenSkills must already be installed. The local install/read procedure is checked with OpenSkills 1.5.0, which requires Node.js ≥ 20.6.0. Catalog slugs are not resolved automatically.

Official OpenSkills installation
openskills install './.skill-downloads/swift-binding-fixer-mmh8qrql'

openskills read 'swift-binding-fixer-mmh8qrql'

Reading should display the installed file content and its base directory. It does not run the skill or install its dependencies.

For an agent that reads AGENTS.md, then sync the index. This command changes AGENTS.md: review the diff before using it.

openskills sync

Manual method or another tool: attach SKILL.md to a conversation, or open it in an agent that can read files. Include any required supporting resources. No universal folder is recognized by every tool.

4. Try a first task

Use a short, synthetic input: an API endpoint, a small document or an interface brief. In a new conversation, attach the file or give the agent its path, then adapt this request:

Read .skill-downloads/swift-binding-fixer-mmh8qrql/SKILL.md and apply its instructions to this example: [describe a test input]. Identify any missing files, dependencies or access. Produce the result requested by the skill without inventing data or running unreviewed scripts.

Expected result: output matching the skill instructions, or a precise list of missing prerequisites. A read confirmation alone does not validate a first use. If an external resource is unavailable, that path remains untested.

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