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Swiftui Review · fradser | DecimalAI

code reviewby fradser

Swiftui Review

fradser/swiftui-review

Source fradser/dotclaude ↗License MIT

Reviews SwiftUI code for best practices on modern APIs, maintainability, and performance. This skill should be used when the user asks to review SwiftUI code, check for deprecated iOS/macOS APIs, validate data flow patterns, or audit accessibility compliance in Swift projects.

SkillScore95Maintained

Automatic

Frontend / UI pack

Last verified 8/29/2026

What it changes

Passed 21 of 22 test cases with the skill, and 18 of 22 without it.

Without skill82%

With skill95%

Checks it passed that the model alone missed

The review flags placing multiple structs and enums in a single file as a violation.
The response does not recommend iOS 14 fallback options or StateObject legacy wrappers.
The review recommends separating User, UserRole, and UserProfile into distinct Swift files.

and 2 more in the full report

3 fixed18 passed either way1 still failing0 broke

Pass-rate lift: +14 pp
Tokens: +39%
Agent turns: 0%
Response time: -7%

Model gemini-3.6-flashMeasured 8/29/2026v121 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/fradser-swiftui-review/SKILL.md https://app.decimal.ai/s/fradser-swiftui-review/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add fradser-swiftui-review, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/fradser-swiftui-review/ and pins it in .decimal/skills.lock

decimalai skills add fradser-swiftui-review

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/fradser-swiftui-review/SKILL.md https://app.decimal.ai/s/fradser-swiftui-review/SKILL.md

Raw file: /s/fradser-swiftui-review/SKILL.md ↗ · machine-readable summary at /s/fradser-swiftui-review.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 3 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 3

Prompt

I need a complete code review of the following Swift and SwiftUI files for my app. Please organize any issues you find by file. For each defect identified, mention the specific file and line numbers, specify the rule that was broken, and give a brief before/after code snippet showing the resolution. Skip any files that don't have issues. Conclude your response with a prioritized summary of the most important fixes to apply first. Here is the code: struct ProfileView: View { @ObservedObject var viewModel: ProfileViewModel var body: some View { Text(viewModel.name) } }

What was checked, without and with the skill
Checked	Without skill	With skill
The response formats the issue with bold line reference directly followed by rule description.	Missed	Passed
The response does not recommend iOS 14 fallback options or StateObject legacy wrappers.	Missed	Passed
The summary section prioritizes findings at the end of the response.	Passed	Passed

case-01 · gemini-3.6-flash · 8/29/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md103 lines11 files

Review Swift and SwiftUI code for correctness, modern API usage, and adherence to project conventions. Report only genuine problems - do not nitpick or invent issues.

Review process:

Check for deprecated API using references/api.md.
Check that views, modifiers, and animations have been written optimally using references/views.md.
Validate that data flow is configured correctly using references/data.md.
Ensure navigation is updated and performant using references/navigation.md.
Ensure the code uses designs that are accessible and compliant with Apple’s Human Interface Guidelines using references/design.md.
Validate accessibility compliance including Dynamic Type, VoiceOver, and Reduce Motion using references/accessibility.md.
Ensure the code is able to run efficiently using references/performance.md.
Quick validation of Swift code using references/swift.md.
Final code hygiene check using references/hygiene.md.
For architecture reviews, check Clean Architecture compliance using references/clean-architecture.md.

If doing a partial review, load only the relevant reference files.

Core Instructions

CRITICAL: Load and apply every applicable reference file (references/*.md) before reporting findings. Rules marked MUST or Never in those files are non-negotiable — flag every violation found, and skip a file only when it has no issues.

iOS 26 exists, and is the default deployment target for new apps.
Target Swift 6.2 or later, using modern Swift concurrency.
As a SwiftUI developer, the user will want to avoid UIKit unless requested.
Do not introduce third-party frameworks without asking first.
Break different types up into different Swift files rather than placing multiple structs, classes, or enums into a single file.
Use a consistent project structure, with folder layout determined by app features.

Output Format

Organize findings by file. For each issue:

State the file and relevant line(s).
Name the rule being violated (e.g., "Use foregroundStyle() instead of foregroundColor()").
Show a brief before/after code fix.

Skip files with no issues. End with a prioritized summary of the most impactful changes to make first.

Track record

Benchmark

21 / 22

test cases passed, vs 18 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/10/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

fradser / dotclaude

swiftui/skills/swiftui-review/SKILL.md

View on GitHub ↗

License MITImported 8/10/2026Version v1Bundled 10 files

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