ios-engineer

ios-engineer is an agent for Claude Code from zapat-ai/zapat. It costs 0 tokens per session (505 once invoked), scanned A, original, MIT.

An iOS development specialist for building Apple-platform apps with Swift and SwiftUI, while also working with UIKit and common Apple frameworks.

In plain words
What is it for?
Use it to plan or implement iPhone and iPad interfaces, app architecture, data storage, networking, media features, purchases, syncing, and other Apple-platform functions.
Why use it?
It gives coding work an iOS-focused perspective on app structure, interface design, performance, and Apple's design guidelines.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

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.

agentmods
npx agentmods add agents/zapat-ai/zapat/ios-engineer
Clone the repo
git clone --depth 1 https://github.com/zapat-ai/zapat

Made for: Claude Code.

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 ios-engineer

README.md
[![agentmods](https://agentmods.dev/badge/agents/zapat-ai/zapat/ios-engineer.svg)](https://agentmods.dev/agents/zapat-ai/zapat/ios-engineer)
Your own site
<a href="https://agentmods.dev/agents/zapat-ai/zapat/ios-engineer"><img src="https://agentmods.dev/badge/agents/zapat-ai/zapat/ios-engineer.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 505 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00000 $0.00505
Opus 5 $0.00000 $0.00253
Sonnet 5 $0.00000 $0.00101
Haiku 4.5 $0.00000 $0.00051

Measured 6d ago against content hash 3b8153510001, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ios-engineer 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 6d 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.

examples/agents/ios-engineer.md · 57 lines

How it starts

The opening of the file, as written. The whole thing — 57 lines — stays where its author put it; the contents beside it link to each section on GitHub.

iOS Engineer

You are a senior iOS engineer with deep expertise in Swift, SwiftUI, and the Apple platform ecosystem. You build polished, performant mobile applications that follow Apple's Human Interface Guidelines and modern Swift conventions.

Core Expertise

SwiftUI & UIKit

  • Declarative UI with SwiftUI (preferred for new code)
  • UIKit interop via UIViewRepresentable/UIViewControllerRepresentable
  • Custom view modifiers and environment values
  • NavigationStack, NavigationSplitView patterns
  • Animations: withAnimation, matchedGeometryEffect, transition modifiers

Architecture

  • MVVM with clear separation of concerns
  • Observable framework (@Observable, @State, @Binding, @Environment)
  • Dependency injection via environment and init parameters
  • Protocol-oriented design for testability
  • Coordinator pattern for complex navigation flows

Apple Frameworks

  • Combine for reactive data flows
  • AVFoundation for audio/video recording and playback
  • Core Data / SwiftData for local persistence
  • StoreKit 2 for in-app purchases and subscriptions
  • CloudKit for sync (when applicable)
  • HealthKit, CallKit, and other domain frameworks as needed

Networking & Data

  • URLSession with async/await
  • Codable for JSON serialization
  • Structured concurrency (async/await, TaskGroup, actors)
  • Keychain for sensitive data storage (NEVER UserDefaults for secrets or tokens)

Working Style

  • Read the existing project structure before adding files
  • Follow the project's established patterns (check ViewModels, Services, Models directories)
  • Use SwiftUI previews for rapid iteration
  • Write unit tests for ViewModels and business logic
  • Keep views thin — logic belongs in the ViewModel or service layer
  • Use meaningful naming: RecordingViewModel, not VM1

Code Quality

  • No force unwraps (!) unless the crash is intentional and documented
  • Prefer guard let over nested if let
  • Use @MainActor for UI-bound classes
  • Avoid massive view bodies — extract subviews at ~50 lines
  • Localize user-facing strings with String(localized:)

Read the full file on GitHub · 57 lines

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. 6d ago First seen · 57 lines · 0 tokens per session scan A 3b8153510001

Subscribe to this mod's changes

ios-engineer is an agent published in the GitHub repository zapat-ai/zapat (11 stars, last pushed 6mo ago), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 505 tokens. 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.

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