ce-test-xcode

ce-test-xcode is a skill for Claude Code, Codex from EveryInc/compound-engineering-plugin. It costs 31 tokens per session (442 once invoked), scanned A, original, MIT.

A skill for building and exercising iOS apps in an Xcode simulator, with screenshots, logs, and test results saved as evidence.

In plain words
What is it for?
It helps test iOS changes in a simulator, capture console errors and screenshots, and report remaining failures.
Why use it?
It provides a record of whether app surfaces passed, failed, or were skipped before handoff.

Skill for Claude CodeCodex

Part of the compound-engineering plugin — 40 skills, 8 commands, 30 agents, 1 hook shipped together

About the project

Compound Engineering is a plugin that organizes software work into brainstorming, planning, implementation, review, and recording lessons for future changes. It is used with AI coding agents including Claude Code, Cursor, and Codex, and the catalogue entries provide parts of its agent, skill, command, and hook workflow.

EveryInc/compound-engineering-plugin · 24,846 stars · on GitHub

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 skills/everyinc/compound-engineering-plugin/ce-test-xcode
Any agent
npx skills add EveryInc/compound-engineering-plugin --skill ce-test-xcode
Clone the repo
git clone --depth 1 https://github.com/EveryInc/compound-engineering-plugin

Made for: Claude Code, Codex.

Or install compound-engineering, the plugin that ships this one along with the rest of its 40 skills, 8 commands, 30 agents, 1 hook.

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 ce-test-xcode

README.md
[![agentmods](https://agentmods.dev/badge/skills/everyinc/compound-engineering-plugin/ce-test-xcode.svg)](https://agentmods.dev/skills/everyinc/compound-engineering-plugin/ce-test-xcode)
Your own site
<a href="https://agentmods.dev/skills/everyinc/compound-engineering-plugin/ce-test-xcode"><img src="https://agentmods.dev/badge/skills/everyinc/compound-engineering-plugin/ce-test-xcode.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 442 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 $0.00031 $0.00442
Opus 5 $0.00015 $0.00221
Sonnet 5 $0.00006 $0.00088
Haiku 4.5 $0.00003 $0.00044

Measured yesterday against content hash ebee5d613f8e, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

ce-test-xcode 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 yesterday.

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/ce-test-xcode/SKILL.md · 27 lines

What it actually says

Xcode Simulator Test

Build and exercise an iOS app on a simulator, preserving screenshots, logs, human-verification results, and failures as evidence for the user.

Done:

  • A completed run reports overall PASS, FAIL, or PARTIAL plus project, scheme, simulator, build result, per-surface PASS / FAIL / SKIP, console errors, human checks, and residual failures.
  • Per-surface status is derived from evidence, not the user's routing choice. PASS requires completed passing evidence. FAIL records observed failing evidence until a completed retest replaces it. SKIP means the check has no completed outcome.
  • The overall result is FAIL while any failure remains, PARTIAL when no failure remains but a scoped check is skipped, and otherwise PASS.
  • Any failure before the launched-with-log-capture handoff stops later stages and reports an actionable setup blocker with its evidence.

Boundaries: this skill tests and reports. Diagnosis and any user-approved product fix belong to ce-debug, invoked with authority narrowed to return here without committing, pushing, or opening a PR. Keep simulator interaction within the app and flows the user placed in scope.

Run

  1. Prepare and launch. Read references/setup-and-build.md. It owns the XcodeBuildMCP availability gate, project and scheme discovery, simulator choice, build, install, launch, and log-capture start.
  2. Exercise and report. After launch, read references/test-and-report.md. It owns per-screen evidence, human-only flows, the SwiftUI inline-link automation limitation, failure routing, cleanup, and the fixed summary fields.

Do not replace either required read with remembered tool names. XcodeBuildMCP adapters differ by host, while their observable success conditions do not.

Files

What ships with it

2 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. yesterday First seen · 27 lines · 31 tokens per session scan A ebee5d613f8e

Subscribe to this mod's changes

ce-test-xcode is a skill published in the GitHub repository EveryInc/compound-engineering-plugin (24,846 stars, last pushed today), licensed MIT. It adds 31 tokens to every session and 442 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.

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