swift-programmer

swift-programmer is a skill for Claude Code from Pyroxin/opinionated-claude-skills. It costs 57 tokens per session (9,926 once invoked), scanned A, original, EPL-2.0.

A set of guidance for writing and working with Swift code, including Swift’s recommended programming styles and newer concurrency rules.

In plain words
What is it for?
Use it when developing or reviewing Swift code and choosing appropriate language idioms, tools, and concurrency practices.
Why use it?
It helps keep Swift code aligned with value-based design, protocol-oriented patterns, compile-time checks, and Swift 6 concurrency requirements.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the opinionated-apple-development plugin — 2 skills shipped together

Good fit Use it when developing or reviewing Swift code and choosing appropriate language idioms, tools, and concurrency practices.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/pyroxin/opinionated-claude-skills/swift-programmer
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 Pyroxin/opinionated-claude-skills --skill swift-programmer
Clone the repo
git clone --depth 1 https://github.com/Pyroxin/opinionated-claude-skills

Made for: Claude Code.

Or install opinionated-apple-development, the plugin that ships this one along with the rest of its 2 skills.

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 swift-programmer

README.md
[![agentmods](https://agentmods.dev/badge/skills/pyroxin/opinionated-claude-skills/swift-programmer/github.svg)](https://agentmods.dev/skills/pyroxin/opinionated-claude-skills/swift-programmer)
Your own site
<a href="https://agentmods.dev/skills/pyroxin/opinionated-claude-skills/swift-programmer"><img src="https://agentmods.dev/badge/skills/pyroxin/opinionated-claude-skills/swift-programmer/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 swift-programmer

Your own site · 80×15
<a href="https://agentmods.dev/skills/pyroxin/opinionated-claude-skills/swift-programmer"><img src="https://agentmods.dev/badge/skills/pyroxin/opinionated-claude-skills/swift-programmer.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 9,926 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.
Origin unknown 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 $0.00057 $0.09926
Opus 5 $0.00028 $0.04963
Sonnet 5 $0.00011 $0.01985
Haiku 4.5 $0.00006 $0.00993

Measured 2d ago against content hash 922760eb25c0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

swift-programmer 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 2d 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.

opinionated-apple-development/skills/swift-programmer/SKILL.md · 469 lines

The source is not reproduced here

Licensed EPL-2.0

The repository is licensed EPL-2.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

Files

What ships with it

2 files 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. 2d ago Changed · -252 lines · +12 tokens per session 922760eb25c0
  2. 10d ago First seen · 721 lines · 45 tokens per session scan A 6ab2c200fdff

Subscribe to this mod's changes

swift-programmer is a skill published in the GitHub repository Pyroxin/opinionated-claude-skills (9 stars, last pushed 3d ago), licensed EPL-2.0. It adds 57 tokens to every session and 9,926 once invoked, about $0.0003 per session on Opus 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 2026-08-31.

Related

Other skills, from other repositories

build-android-binary

Compile a PAM control's Android Kotlin module into the runtime-loadable DEX for a .ppmplugin. Creates a staged Gradle build with the pinned wrapper and react-android compile dependency, verifies manifest/module/package alignment and runtime-loading constraints, builds the release AAR, then runs d8 --min-api 24. Writes…

microsoft/power-platform-skills · 150 tokens

build-ios-binary

Compile a PAM control's iOS Obj-C/Swift module into the FLAT device-slice .framework for a .ppmplugin bundle (never an .xcframework — the wrap CI won't descend into one). Mac-only (Xcode). Builds from a throwaway staged copy so canonical ios/ and the podspec stay untouched, references React-Core headers only (React is…

microsoft/power-platform-skills · 200 tokens

swiftui-expert

This skill should be used when SwiftUI work requires judgment about Observation and state ownership, view identity or lifecycle, navigation, app-target concurrency, persistence, Apple-platform behavior, accessibility, performance, or architecture. Trigger on "review this SwiftUI screen", "why isn't this view…

johnkozaris/jko-claude-plugins · 133 tokens

swiftui-expert

This skill should be used when the user is building, reviewing, or debugging SwiftUI views and apps. Detects iOS and Swift version from the project. Covers creating views, state management with @Observable, NavigationStack routing, animations, accessibility, performance optimization, Liquid Glass adoption, design…

mathisk2095/jko-claude-plugins · 162 tokens

phx-deps-audit

Audit Hex deps for supply-chain security risk — bidi chars, compile-time exec, maintainer changes, typosquats, CVEs. Use after mix deps.update, when checking if a package upgrade is safe, or reviewing mix.lock PR diffs.

oliver-kriska/claude-elixir-phoenix · 58 tokens

deps-update

Bump outdated Hex deps — inventory, snapshot changelogs, update, fix breaks, split reviewable PRs (patches bundled, majors solo). Use to upgrade/bump Elixir dependencies or when versions fall behind. NOT for deps.get failures (/phx:investigate).

oliver-kriska/claude-elixir-phoenix · 60 tokens