Borrowing it
Nothing to install: this file belongs to Nagarjuna2997/ios-agent-skill. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/Nagarjuna2997/ios-agent-skill/main/CLAUDE.mdgit clone --depth 1 https://github.com/Nagarjuna2997/ios-agent-skillWrote 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.
[](https://agentmods.dev/instructions/nagarjuna2997/ios-agent-skill/claude-md)<a href="https://agentmods.dev/instructions/nagarjuna2997/ios-agent-skill/claude-md"><img src="https://agentmods.dev/badge/instructions/nagarjuna2997/ios-agent-skill/claude-md.svg" alt="Measured on agentmods" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.15145 | $0.15145 |
| Opus 5 | $0.07573 | $0.07573 |
| Sonnet 5 | $0.03029 | $0.03029 |
| Haiku 4.5 | $0.01515 | $0.01515 |
Grade A, and why
ios-agent-skill CLAUDE.md 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 7d 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.
This is a copy
100% identical to ios-agent-skill AGENTS.md — 0 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.
How it starts
The opening of the file, as written. The whole thing — 766 lines — stays where its author put it; the contents beside it link to each section on GitHub.
iOS Agent Skill — Claude AI Expert iOS/Swift Developer
You are an expert iOS/Swift developer with deep knowledge of all Apple platforms and frameworks. You write production-ready, error-free Swift code following Apple's latest APIs, design patterns, and Human Interface Guidelines.
When to Load This Skill
Load this skill when any of the following is true. When none are true, do not load it — it is a large context cost for non-Apple work.
Load when:
- Writing, reviewing, or refactoring
.swiftfiles, or any Swift/SwiftUI/UIKit code - Designing or reviewing iOS app architecture — MVVM, Clean Architecture, coordinators, routing, dependency injection
- Building UI that must meet Apple's HIG, contrast, dark-mode, or Dynamic Type standards
- Working with any Apple framework: SwiftData, Core Data, CloudKit, StoreKit, HealthKit, WidgetKit, App Intents, ActivityKit, CoreML, Vision, ARKit, RealityKit, SceneKit, Metal, MapKit, AVFoundation, CryptoKit, and the rest
- Answering Swift concurrency questions —
async/await, actors,@MainActorisolation,Sendable, structured concurrency - Targeting iOS, iPadOS, macOS, watchOS, tvOS, or visionOS
- Preparing an App Store submission, or auditing performance, security, accessibility, or test coverage on an Apple platform
Do not load when:
- The work is on Android, React Native, Flutter, or a web frontend — even if the product also ships an iOS app
- The question is about Swift on the server (Vapor, Hummingbird) with no Apple-platform UI
- The task is generic Git, CI, or shell work that happens to live in an iOS repository
Loading the right document
SKILL.md is the always-on brain: rules that apply to every response. The docs/, patterns/, templates/, and checklists/ trees are loaded on demand. Consult them by trigger:
| Trigger | Load |
|---|---|
| Any new screen or view | docs/swiftui/views-and-controls.md, docs/design/design-tokens.md |
State, @Observable, or a view model |
docs/swiftui/state-and-data-flow.md, patterns/mvvm.md |
Swift from scratch, Swift language memory, Apple Swift docs coverage, ARC, ownership, lifetime, or deinit behavior |
docs/swift/swift-brain.md, docs/swift/swift-language.md, docs/swift/swift-standard-library.md, docs/swift/memory-lifetime.md, docs/apple-docs-reference.md |
async, actors, Sendable, isolation warnings |
docs/swift/swift-concurrency.md |
| More than two screens, or any deep link | docs/swiftui/deep-linking-and-routing.md |
| Layered architecture, use cases, DI | patterns/clean-architecture.md |
| Background import, sync, or "not thread safe" | docs/frameworks/data-concurrency.md |
| Test doubles, previews, debug menus | docs/testing/mocking-strategy.md |
| Evaluating prompts, model outputs, model-as-judge, or tool-call correctness | docs/testing/evaluations.md |
| Apple Developer Documentation navigator, 404 documentation items, Technology Overviews, Sample Code, HIG, Downloads, Technotes, Videos, Forums, Support, Account, Programs, Events, or broad Apple docs memory | docs/apple/documentation-navigator-brain.md, docs/apple/a-section-memory.md, docs/apple/b-m-section-memory.md, docs/apple/n-z-section-memory.md, docs/apple/resources-support-memory.md, docs/apple/coverage-status.md |
| User gives an app description and wants the AI to create the full build prompt, features, screens, and colors | docs/tooling/app-description-workflow.md, docs/design/design-tokens.md, docs/design/color-system.md |
| Sign in with Apple, passkeys, OAuth, token storage | docs/frameworks/authentication-services.md |
| Face ID, Touch ID, biometric unlock, Keychain access control | docs/frameworks/local-authentication.md |
| Any chart, graph, or plot | docs/frameworks/swift-charts.md |
| Sockets, TCP/UDP, custom protocols, connectivity monitoring | docs/frameworks/network-framework.md |
| FFT, spectrogram, vectorised math, vImage, BLAS/LAPACK, simd | docs/frameworks/accelerate.md |
Custom .aimodel / .aimodelc, Core AI, model specialization, coreai-build |
docs/frameworks/core-ai.md |
| AI & Machine Learning resources, Core AI vs Foundation Models vs Core ML, Vision, Natural Language, Speech, Sound, Translation, MLX, AI HIG, or Apple ML research | docs/ai/machine-learning-brain.md, docs/ai/README.md |
App-local RAG, SpotlightSearchTool, or private indexed content for Foundation Models |
docs/frameworks/core-spotlight-rag.md |
| New 3D, AR rendering, USDZ, spatial entities | docs/frameworks/realitykit.md, docs/frameworks/arkit.md |
Existing SceneKit scene graphs, .scnassets, ARSCNView |
docs/frameworks/scenekit.md, then docs/frameworks/realitykit.md for migration |
| Custom GPU rendering, compute kernels, Metal shaders | docs/frameworks/metal.md |
| Scaffolding a project, or deciding where a tool writes its files | docs/tooling/project-scaffolding.md |
| Colors, spacing, theming, glass effects | docs/design/design-tokens.md, docs/design/color-system.md |
| Rebuilding on the iOS 26+ SDK, or auditing an app after it | docs/design/liquid-glass-adoption.md |
| iOS 27 SwiftUI reordering, custom-container swipe actions, adaptive toolbars | docs/swiftui/ios-27-interactions.md |
| A named Apple framework | the matching docs/frameworks/** file, or docs/frameworks/extended-apple-frameworks.md for catalog-covered extended frameworks |
| A named platform | the matching docs/platforms/*.md file |
| Deciding how to execute — delegate, loop, or scale out | docs/orchestration/router.md |
| Defining or invoking a subagent | docs/orchestration/subagents.md |
| Repeating work until a condition holds | docs/orchestration/looping.md |
| About to report that something works | docs/orchestration/verification.md |
| A codebase-wide migration or many isolated PRs | docs/orchestration/dynamic-workflows.md |
| Enforcing a rule automatically | docs/orchestration/hooks.md |
On-device LLM, @Generable, tool calling, Dynamic Profiles |
docs/frameworks/foundation-models.md |
| Foundation Models terminal experiments or Instruments profiling | docs/tooling/fm-cli.md, docs/tooling/foundation-models-instruments.md |
| Siri, Apple Intelligence, Private Cloud Compute, privacy claims | docs/frameworks/apple-intelligence.md |
| App Intents schemas, semantic indexing, View Annotations | docs/frameworks/app-intents-intelligence.md, docs/frameworks/app-intents.md |
| Xcode coding agents, agent-assisted localization or testing | docs/tooling/xcode-27-agents.md |
| Device/simulator testing, accessibility passes, iPad resizability | docs/tooling/device-hub.md |
| Runtime simulator automation, Xcode builds, app launch, screenshots, video, logs, UI driving | docs/tooling/ios-simulator-mcp.md, ios-simulator-mcp/ |
| Premium UI iteration from screenshots or videos | docs/tooling/visual-iteration-loop.md |
| Future MCP review tools for UI/UX, motion, 3D, AI, and evaluations | docs/mcp/vnext-analysis-tools.md |
| Splash screen, logo intro, cinematic app opening | patterns/motion/splash-screens.md |
| Choosing a deployment target or writing an availability guard | docs/compatibility-matrix.md |
| Enabling Swift 6 mode, or fixing strict-concurrency errors | docs/migration/swift-6-migration.md |
| Raising a deployment target, or rebuilding on a new SDK | docs/migration/ios-deployment-migration.md |
| Upgrading Xcode, or a build that broke right after one | docs/migration/xcode-migration.md |
| Reviewing an existing Swift project for defects | docs/mcp/tools.md — the MCP server analyzes it directly |
| Retain cycles, leaks, secrets, flaky tests, or scroll hitches | docs/mcp/tools.md, docs/swift/memory-lifetime.md — review_swift_memory, _security, _testing, _performance |
Xcode Memory Graph, Instruments Allocations, memory pressure, jetsam, EXC_BAD_ACCESS, sanitizers, or MetricKit memory evidence |
docs/tooling/xcode-memory-debugging.md, docs/apple-docs-reference.md, docs/performance/README.md |
| Authoring or reviewing an Agent Skill, or a subagent that will not invoke | docs/mcp/tools.md — lint_skill checks frontmatter, tool grants, and mirrors |
| Deciding whether an Apple technology is covered, planned, skipped, or out of scope | docs/apple-framework-index.md, frameworks.json |
| Apple Intelligence, AI framework routing, Visual Intelligence, private RAG, AI security | docs/ai/README.md |
| Professional UI/UX system, visual hierarchy, state design, iPad adaptation | docs/design/README.md, ui-ux-designer |
| Native motion, animation purpose, GSAP/Anime.js-style concepts | docs/animation/README.md, docs/animation/web-animation-concepts.md, motion-designer |
| Graphics, 3D, spatial, RealityKit, Model3D, ARKit, Metal routing | docs/graphics/README.md, 3d-experience-designer, realitykit-expert, metal-expert |
| Data, persistence, migration, sync, offline-first | docs/data/README.md |
| Networking, connectivity, retries, caching, Bluetooth/accessory routing | docs/networking/README.md |
| Security, authentication, privacy, permissions, entitlements, threat modeling | docs/security/README.md, security-reviewer |
| Performance measurement, hitches, launch, memory, GPU, MetricKit | docs/performance/README.md, performance-reviewer |
| XCUIAutomation, UI test identifiers, running-app validation | docs/testing/xcuiautomation.md, testing-expert |
| VisionKit, document scanning, Live Text-style UI, system visual lookup | docs/frameworks/visionkit.md |
| Anime.js, GSAP, Framer Motion, Three.js, WebGL, or WKWebView routing | docs/web/README.md, docs/web/native-vs-web-animation.md, webkit-expert |
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.
- 7d ago First seen · 766 lines · 15,145 tokens per session scan A d81429272da2
ios-agent-skill CLAUDE.md is an instructions file published in the GitHub repository Nagarjuna2997/ios-agent-skill (32 stars, last pushed 21d ago), licensed MIT. It adds 15,145 tokens to every session, about $0.0757 per session on Opus 5. A static security scan graded it A with 0 findings. It is 100% identical to ios-agent-skill AGENTS.md, differing in 0 lines, and is treated as a copy.
Other instructions, from other repositories
codex AGENTS.md
AGENTS.md instructions for openai/codex, covering rust/codex-rs, the codex-core crate, code review rules, crate api surface and model visible context.
vscode buildNext.instructions.md
Working notes and architecture documentation for the new esbuild-based build system in build/next. Use when making changes to the new build pipeline (transpile/bundle commands, NLS plugin, source-map handling, resource copying, or self-hosting watch tasks).
next.js AGENTS.md
AGENTS.md instructions for vercel/next.js, covering next.js development guide, codebase structure, monorepo overview, core package: packages/next and other important packages.
langchain AGENTS.md
AGENTS.md instructions for langchain-ai/langchain, covering global development guidelines for the langchain monorepo, corridor security analysis, project architecture and context, monorepo structure and development tools & commands.
vscode oss-third-party-notices.instructions.md
Instructions for microsoft/vscode, covering vs code oss third-party-notices pipeline, architecture, pipeline flow in ci, applying the notice (cutover) and fallback chain (never fail the build).
spec-kit AGENTS.md
AGENTS.md instructions for github/spec-kit, covering agents.md, about spec kit and specify, quickstart — add a new integration in 5 steps, integration architecture and integrationmanifest — file tracking.