ios-simulator-triage

ios-simulator-triage is a skill for Claude Code from simiancraft/simiancraft-skills. It costs 111 tokens per session (652 once invoked), scanned A, original, MIT.

A troubleshooting guide for finding and recovering from build, app, and automation failures in Apple's iOS Simulator, a virtual iPhone or iPad used on a Mac.

In plain words
What is it for?
It helps diagnose Xcode and CocoaPods build problems, app crashes, Expo errors, and UI automation failures.
Why use it?
It replaces guesswork with a process for identifying which layer failed and reading the relevant logs.

Skill for Claude Code

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

Part of the simiancraft-skills plugin — 16 skills, 4 agents shipped together

Good fit It helps diagnose Xcode and CocoaPods build problems, app crashes, Expo errors, and UI automation failures.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/simiancraft/simiancraft-skills/ios-simulator-triage
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 simiancraft/simiancraft-skills --skill ios-simulator-triage
Clone the repo
git clone --depth 1 https://github.com/simiancraft/simiancraft-skills

Made for: Claude Code.

Or install simiancraft-skills, the plugin that ships this one along with the rest of its 16 skills, 4 agents.

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-simulator-triage

README.md
[![agentmods](https://agentmods.dev/badge/skills/simiancraft/simiancraft-skills/ios-simulator-triage/github.svg)](https://agentmods.dev/skills/simiancraft/simiancraft-skills/ios-simulator-triage)
Your own site
<a href="https://agentmods.dev/skills/simiancraft/simiancraft-skills/ios-simulator-triage"><img src="https://agentmods.dev/badge/skills/simiancraft/simiancraft-skills/ios-simulator-triage/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 ios-simulator-triage

Your own site · 80×15
<a href="https://agentmods.dev/skills/simiancraft/simiancraft-skills/ios-simulator-triage"><img src="https://agentmods.dev/badge/skills/simiancraft/simiancraft-skills/ios-simulator-triage.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 111 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 652 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 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 $0.00111 $0.00652
Opus 5 $0.00056 $0.00326
Sonnet 5 $0.00022 $0.00130
Haiku 4.5 $0.00011 $0.00065

Measured 11d ago against content hash 4ba084e4e174, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

ios-simulator-triage 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 11d 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/ios-simulator-triage/SKILL.md · 59 lines

What it actually says

iOS Simulator Triage (living failure catalog)

Classify first (which layer failed), then recover. Most fixes live in the sibling skills; this skill routes you to them and supplies the logging tools that turn a symptom into a cause.

Route by symptom

  • It never installs or launches (xcodebuild, CocoaPods, or prebuild failed): a build failure -> references/build-failures.md.
  • It launches, then crashes or misbehaves: a runtime failure -> references/runtime-failures.md, split into app-native and Expo / React-Native because the logs and the fixes differ.
  • It runs, but AXe cannot find or tap the element: an automation failure -> references/automation-failures.md.

Read the logs first

Every layer has a log that names the cause; guessing without it wastes a cycle. references/logging.md is the cross-cutting tool, indexed by layer: the unified log (simctl spawn booted log stream), the app's stdout and stderr (simctl launch --console), crash reports, the diagnostic bundle (simctl diagnose), and the Metro terminal for the JS layer.

Rules

  • Identify the layer before changing anything; a build fix will not cure a runtime crash.
  • Pull the log before forming a hypothesis; the unified log or the crash report usually names the cause outright.
  • Every factual claim here and in the references cites a primary source (the tools' own help, Apple); a prior-art skill is never a source.

Out of scope

Happy-path driving -> ios-simulator and expo-ios-simulator. What makes an app addressable -> mobile-accessibility.

Where to go

  • references/build-failures.md: code signing, CocoaPods, prebuild, and architecture.
  • references/runtime-failures.md: native crashes and the Expo / RN failure modes.
  • references/automation-failures.md: empty describe-ui, missed taps, and blocking overlays.
  • references/logging.md: the unified log, console output, crash reports, and diagnose.
Files

What ships with it

4 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. 11d ago First seen · 59 lines · 111 tokens per session scan A 4ba084e4e174

Subscribe to this mod's changes

ios-simulator-triage is a skill published in the GitHub repository simiancraft/simiancraft-skills (7 stars, last pushed 7d ago), licensed MIT. It adds 111 tokens to every session and 652 once invoked, about $0.0006 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.

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