What is macos-test-diagnose?

A command that runs the smallest useful set of tests for a macOS project and explains what went wrong. It works with Apple's Xcode build tool or Swift's test command.

Use it with an Xcode scheme, test target, filter, or Debug/Release configuration to investigate macOS test failures and identify the next step.

It reduces unnecessary full-suite test runs and separates build problems from failing tests, crashes, setup issues, and flaky tests.

macos-test-diagnose — Command for Claude Code by Xopoko

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.

Clone the repo

git clone --depth 1 https://github.com/Xopoko/build-swift-apps

Made for: Claude Code.

Or install build-swift-apps, the plugin that ships this one along with the rest of its 61 skills, 3 commands, 3 MCP servers.

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/xopoko/build-swift-apps/macos-test-diagnose/github.svg)](https://agentmods.dev/commands/xopoko/build-swift-apps/macos-test-diagnose)

Your own site

<a href="https://agentmods.dev/commands/xopoko/build-swift-apps/macos-test-diagnose"><img src="https://agentmods.dev/badge/commands/xopoko/build-swift-apps/macos-test-diagnose/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.

Your own site · 80×15

<a href="https://agentmods.dev/commands/xopoko/build-swift-apps/macos-test-diagnose"><img src="https://agentmods.dev/badge/commands/xopoko/build-swift-apps/macos-test-diagnose.svg" alt="Reviewed on agentmods" width="80" 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 198 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 95% copy Near-identical to another mod 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00198
Opus 5	$0.00000	$0.00099
Sonnet 5	$0.00000	$0.00040
Haiku 4.5	$0.00000	$0.00020

Measured 9d ago against content hash 84644a27ed4d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, from the pricing page.

Security

Grade A, and why

macos-test-diagnose 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.

Origin

This is a copy

95% identical to test-macos-app — 2 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.

commands/macos-test-diagnose.md · 24 lines

What it actually says