axiom-ios-build

axiom-ios-build is a skill for Claude Code, Codex from ComeOnOliver/skillshub. It costs 47 tokens per session (3,793 once invoked), scanned A, original, MIT.

An iOS build and Xcode troubleshooting guide that routes failures to the relevant diagnostic process. It covers problems with compiling, tests, simulators, dependencies, and the development environment.

In plain words
What is it for?
Use it when an iOS build fails, tests crash or hang, the simulator will not start, dependencies conflict, Xcode behaves strangely, or builds are unusually slow.
Why use it?
It helps separate environment problems from bugs in application code, reducing wasted debugging time when Xcode or project setup is the real cause.

Skill for Claude CodeCodex

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

Good fit Use it when an iOS build fails, tests crash or hang, the simulator will not start, dependencies conflict, Xcode behaves strangely, or builds are unusually slow.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/comeonoliver/skillshub/axiom-ios-build
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 ComeOnOliver/skillshub --skill axiom-ios-build
Clone the repo
git clone --depth 1 https://github.com/ComeOnOliver/skillshub

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 axiom-ios-build

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

Your own site · 80×15
<a href="https://agentmods.dev/skills/comeonoliver/skillshub/axiom-ios-build"><img src="https://agentmods.dev/badge/skills/comeonoliver/skillshub/axiom-ios-build.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 47 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,793 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 $0.00047 $0.03793
Opus 5 $0.00023 $0.01896
Sonnet 5 $0.00009 $0.00759
Haiku 4.5 $0.00005 $0.00379

Measured 9d ago against content hash eccc263d9abb, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

axiom-ios-build 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 9d 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/CharlesWiltgen/Axiom/axiom-ios-build/SKILL.md · 425 lines

How it starts

The opening of the file, as written. The whole thing — 425 lines — stays where its author put it; the contents beside it link to each section on GitHub.

iOS Build & Environment Router

You MUST use this skill for ANY build, environment, or Xcode-related issue before debugging application code.

When to Use

Use this router when you encounter:

  • Build failures (BUILD FAILED, compilation errors, linker errors)
  • Test crashes or hangs
  • Simulator issues (won't boot, device errors)
  • Xcode misbehavior (stale builds, zombie processes)
  • Dependency conflicts (CocoaPods, SPM)
  • Build performance issues (slow compilation)
  • Environment issues before debugging code

Routing Logic

This router invokes specialized skills based on the specific issue:

1. Environment-First Issues → xcode-debugging

Triggers:

  • BUILD FAILED without obvious code cause
  • Tests crash in clean project
  • Simulator hangs or won't boot
  • "No such module" after SPM changes
  • Zombie xcodebuild processes
  • Stale builds (old code still running)
  • Clean build differs from incremental build

Why xcode-debugging first: 90% of mysterious issues are environment, not code. Check this BEFORE debugging code.

Invoke: /skill axiom-xcode-debugging


2. Slow Builds → build-performance

Triggers:

  • Compilation takes too long
  • Type checking bottlenecks
  • Want to optimize build time
  • Build Timeline shows slow phases

Invoke: /skill axiom-build-performance


3. SPM Dependency Conflicts → spm-conflict-resolver (Agent)

Triggers:

  • SPM resolution failures
  • "No such module" after adding package
  • Duplicate symbol linker errors
  • Version conflicts between packages
  • Swift 6 package compatibility issues
  • Package.swift / Package.resolved conflicts

Why spm-conflict-resolver: Specialized agent that analyzes Package.swift and Package.resolved to diagnose and resolve Swift Package Manager conflicts.

Invoke: Launch spm-conflict-resolver agent


4. Security & Privacy Audit → security-privacy-scanner (Agent)

Triggers:

  • App Store submission prep
  • Privacy Manifest requirements (iOS 17+)
  • Hardcoded credentials in code
  • Sensitive data storage concerns
  • ATS violations
  • Required Reason API declarations

Read the full file on GitHub · 425 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. 9d ago First seen · 425 lines · 47 tokens per session scan A eccc263d9abb

Subscribe to this mod's changes

axiom-ios-build is a skill published in the GitHub repository ComeOnOliver/skillshub (63 stars, last pushed 2mo ago), licensed MIT. It adds 47 tokens to every session and 3,793 once invoked, about $0.0002 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 2026-09-03.