agentmods.dev

swiftui-backports

swiftui-backports is a skill for Claude Code, Codex from shaps80/SwiftUIBackports. It costs 60 tokens per session (559 once invoked), scanned A, original, MIT.

A reference guide for using newer SwiftUI interface features in apps that must still run on older Apple operating systems. SwiftUI is Apple’s framework for building app screens in Swift.

In plain words
What is it for?
Use it to check whether SwiftUIBackports provides an older-system replacement for a newer SwiftUI API, and to decide whether to use the native feature or its compatible replacement.
Why use it?
It helps resolve compiler errors when an interface feature is newer than the app’s deployment target, without immediately requiring the app to drop support for older systems.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

not rated 1.1krepo +1 4mo ago A scan SkillSpector: pass 60 tokens original MIT

Good fit Use it to check whether SwiftUIBackports provides an older-system replacement for a newer SwiftUI API, and to decide whether to use the native feature or its compatible replacement.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/shaps80/swiftuibackports/swiftui-backports
View source ↗ shaps80/SwiftUIBackports
About the project

SwiftUIBackports is a Swift package that recreates selected newer SwiftUI APIs for older versions of Apple’s operating systems, using familiar names and behavior where practical. Swift developers use it to adopt newer interface patterns while keeping applications compatible with earlier iOS, macOS, tvOS, and watchOS releases. The catalogue entries include agents, instructions, and a discovery skill that help coding agents locate and use the available backports.

shaps80/SwiftUIBackports · 1,100 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add shaps80/SwiftUIBackports --skill swiftui-backports
Clone the repo
git clone --depth 1 https://github.com/shaps80/SwiftUIBackports

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for swiftui-backports

README.md
[![agentmods](https://agentmods.dev/badge/skills/shaps80/swiftuibackports/swiftui-backports/github.svg)](https://agentmods.dev/skills/shaps80/swiftuibackports/swiftui-backports)
Your own site
<a href="https://agentmods.dev/skills/shaps80/swiftuibackports/swiftui-backports"><img src="https://agentmods.dev/badge/skills/shaps80/swiftuibackports/swiftui-backports/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for swiftui-backports

Your own site · 80×15
<a href="https://agentmods.dev/skills/shaps80/swiftuibackports/swiftui-backports"><img src="https://agentmods.dev/badge/skills/shaps80/swiftuibackports/swiftui-backports.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 60 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 559 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00060 $0.00559
Opus 5.5 $0.00024 $0.00224
Sonnet 5.5 $0.00012 $0.00112
Haiku 4.5 $0.00006 $0.00056

Measured 2mo ago against content hash 42501de2ccbc, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

swiftui-backports scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/swiftui-backports/SKILL.md · 50 lines

How it starts

The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.

SwiftUI Backports

When SwiftUI API is newer than the deployment target, check the bundled backport index before hand-rolling compatibility code or raising the target.

Workflow

  1. Confirm the availability need.

    • Use this for compiler availability errors, planned use of modern SwiftUI APIs, or user requests to support older OS versions.
    • Find deployment target in Package.swift, .xcodeproj/project.pbxproj, .xcconfig, or target settings.

  2. Check whether SwiftUIBackports is available.

    • Search for SwiftUIBackports, SwiftBackports, or existing .backport usage.
    • If absent, suggest adding https://github.com/shaps80/SwiftUIBackports only when it fits the project. Do not add it unless asked.

  3. Search the index.

    • Use rg -i "<api-name>|<related-term>" references/Backports.jsonl first.
    • Read only matching JSONL records when possible; the first line is metadata, remaining lines are backport records.
    • Match by name first, then by kind and namespace.
    • If the project has an installed SwiftUIBackports checkout, you may confirm against its source when uncertain.

  4. Decide native vs backport.

    • If target platform is marked unavailable, do not suggest that backport.
    • If deployment target is lower than the entry's deprecated version, use or suggest the backport.
    • If deployment target is at or above deprecated, prefer native SwiftUI.

  5. Use the discovered API.

    • View modifiers: .backport.foo(...)
    • Types/views: usually Backport.Foo; use Backport<Any>.Foo if the compiler needs the fully qualified namespace.
    • Environment values: use the indexed environment key, such as @Environment(\.backportRequestReview).

  6. If no index match exists, say no backport was found and choose another compatibility path.

Do not implement new SwiftUIBackports APIs from this skill. This is for consuming the library.

Example

sheetContent
    .backport.presentationDetents([.medium, .large])

Backport.LabeledContent("", value: 0)

@Environment(\.backportRequestReview) private var requestReview

Read the full file on GitHub · 50 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2mo ago First seen · 50 lines · 60 tokens per session scan A 42501de2ccbc

Subscribe to this mod's changes

swiftui-backports is a skill published in the GitHub repository shaps80/SwiftUIBackports (1,100 stars, last pushed 4mo ago), licensed MIT. It adds 60 tokens to every session and 559 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

Kotlin and SwiftLanguagesMobileModalbackportpresentationsharesheetswifttextview
Related

swiftui-backports compared with skills from other repositories

swiftui-backports next to 6 skills from other repositories
ModTypeStarsLast pushLicenceScanTokensWorks with
swiftui-backportsshaps80/SwiftUIBackportsSkill1.1k4mo agoMITA60Claude Code, Codex
swift-expertpersonamanagmentlayer/pclSkill4411d agoApache-2.0A76Claude Code
ios-expertpersonamanagmentlayer/pclSkill4411d agoApache-2.0A64Claude Code
ios-agent-skillNagarjuna2997/ios-agent-skillSkill408d agoMITA167Claude Code
ios-builderNagarjuna2997/ios-agent-skillSkill408d agoMITA53Claude Code, Codex
swift-architecture-skillefremidze/swift-architecture-skillSkill811mo agoMITA65Claude Code
using-xtool2389-research/xtoolSkill54d agoMITA100Claude Code