Guidance for configuring and diagnosing Xcode Cloud, Apple's service for building, testing, and archiving Apple-platform apps in the cloud. It covers project setup, dependencies, environment checks, and lifecycle scripts.

Use it to set up Xcode Cloud workflows, write its supported custom scripts, investigate build or archive problems, and review XcodeGen regeneration exceptions.

It helps prevent CI failures caused by missing projects, schemes, dependencies, or incorrectly placed scripts. It also emphasizes stopping when required inputs are missing.

xcode-cloud — Skill for Claude Code and Codex by fiveonecode

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 fiveonecode/agent-skills --skill xcode-cloud

Clone the repo

git clone --depth 1 https://github.com/fiveonecode/agent-skills

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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/fiveonecode/agent-skills/xcode-cloud/github.svg)](https://agentmods.dev/skills/fiveonecode/agent-skills/xcode-cloud)

Your own site

<a href="https://agentmods.dev/skills/fiveonecode/agent-skills/xcode-cloud"><img src="https://agentmods.dev/badge/skills/fiveonecode/agent-skills/xcode-cloud/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/skills/fiveonecode/agent-skills/xcode-cloud"><img src="https://agentmods.dev/badge/skills/fiveonecode/agent-skills/xcode-cloud.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 57 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 872 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.

Model	Per session	Once invoked
Fable 5.1	$0.00057	$0.00872
Opus 5.5	$0.00023	$0.00349
Sonnet 5.5	$0.00011	$0.00174
Haiku 4.5	$0.00006	$0.00087

Measured 1mo ago against content hash 35f176995397, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

xcode-cloud 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 1mo ago.

The scan reads SKILL.md. This mod also ships 2 executable files (assets/ci_pre_xcodebuild.sh, scripts/test_skill_contract.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

xcode-cloud/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Xcode Cloud

Overview

Use Apple documentation as the authority for Xcode Cloud lifecycle behavior. Keep this skill focused on workflow configuration, custom scripts, dependency policy, and CI diagnosis. Use xcode-build for local build and simulator work, and ios-xcodegen for XcodeGen project-spec semantics.

Quick Start

Identify the .xcodeproj or .xcworkspace selected by the workflow.
Confirm that project or workspace is continuously present in the repository before configuring Xcode Cloud. A generated and ignored project is not a safe default.
Confirm shared schemes, actions, Xcode version, dependency state, and the repository path used by the workflow.
Add only the custom lifecycle scripts the workflow needs. Place executable scripts in a top-level ci_scripts directory beside the selected project or workspace.
Make every script fail closed on missing inputs and verify the workflow in a disposable branch before rollout.

Apple Lifecycle Contract

Apple recognizes these executable top-level lifecycle names under ci_scripts/:

ci_post_clone.sh
ci_pre_xcodebuild.sh
ci_post_xcodebuild.sh

The post-build script runs even when xcodebuild fails. Never infer success from a missing exit code or action. Require the documented variables for the selected action and reject missing, malformed, or failed state.

Keep logs free of secrets. Do not place credentials in remote URLs, command arguments, or echoed environment dumps.

XcodeGen Exception

Do not use post-clone generation to create the project or workspace Xcode Cloud needs for initial configuration. Prefer committing the generated project when the repository deliberately uses XcodeGen.

Use regeneration during a build only as a separately reviewed exception. The repository must prove the selected Xcode and XcodeGen versions with a fixture, own deterministic tool acquisition, and keep the expected project continuously present. assets/ci_pre_xcodebuild.sh is an opt-in guard for that exception:

Read the full file on GitHub · 91 lines

Files

What ships with it

3 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.

1mo ago First seen · 91 lines · 57 tokens per session scan A 35f176995397

Subscribe to this mod's changes

xcode-cloud is a skill published in the GitHub repository fiveonecode/agent-skills (19 stars, last pushed 1mo ago), licensed MIT. It adds 57 tokens to every session and 872 once invoked, about $0.0002 per session on Opus 5.5. 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 2026-08-30.

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