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ios-codex-preview

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UpdatedJuly 4, 2026 at 17:24

搭建 iOS 模拟器预览，让 Codex 构建、运行、检查 SwiftUI 应用。

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Bronc-X

Bronc-X/Lotus

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Software DevelopersComputer and Mathematical Occupations·SOC 15-1252

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SKILL.md

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name	ios-codex-preview
description	搭建 iOS 模拟器预览，让 Codex 构建、运行、检查 SwiftUI 应用。

iOS Codex Preview Intel

Use this skill to make an iOS project ready for Codex-driven development with a live right-side preview.

What To Deliver

A booted iOS Simulator.
A built, installed, launched app.
A Browser-visible preview at http://127.0.0.1:3200.
A watcher that rebuilds and relaunches after Swift/Xcode project changes.
A health check that proves simulator, server, watcher, screenshot, and port are working.
Clear project-local commands for start, stop, screenshot, and health.

Preferred Flow

Inspect the project root for .xcodeproj or .xcworkspace, schemes, bundle ID, and existing helper scripts.
Run scripts/install-ios-codex-preview.sh from this skill if the project does not already have scripts/ios-preview/* or if they are stale.
Start the preview with scripts/ios-preview/start-all.sh --daemon.
Open or keep http://127.0.0.1:3200 in the Codex in-app Browser and make it visible.
Run scripts/ios-preview/health.sh.
Prove hot reload by making a small visible SwiftUI text change, waiting for the watcher, and taking a simulator screenshot.

Machine-Specific Rule

On Apple Silicon, an official serve-sim / iOS Simulator Browser flow may be available. Prefer it only when it actually runs.

On Intel Macs (uname -m == x86_64), do not spend time retrying serve-sim if it fails with an architecture error. Install the compatibility preview. It polls xcrun simctl io <udid> screenshot and shows the latest image in Codex Browser.

Important Pitfalls

Do not rely on LaunchAgents for projects under ~/Documents; macOS TCC can block background agents from reading the project.
If a stale LaunchAgent exists, unload and disable it before declaring success:
- launchctl list | rg 'codex.*preview|lotusapp|ios-preview|watch-run'
- launchctl bootout gui/$(id -u) ~/Library/LaunchAgents/<plist>
- move the plist to ~/Library/LaunchAgents.disabled/.
Health checks must match both relative and absolute process paths, e.g. scripts/ios-preview/server.mjs, not just node scripts/....
A reachable /status endpoint alone is not sufficient. The watcher process must be alive and a fresh screenshot must be updating.

Commands

Install/update preview helpers in a project:

/Users/broncin/.codex/skills/ios-codex-preview/scripts/install-ios-codex-preview.sh

Start:

scripts/ios-preview/start-all.sh --daemon

Stop:

scripts/ios-preview/stop.sh

Health:

scripts/ios-preview/health.sh

Completion Criteria

Only report completion when all are true:

scripts/ios-preview/health.sh exits 0.
curl -sS http://127.0.0.1:3200/status returns ok: true and hasImage: true.
ps shows both server.mjs and watch-run.sh.
Codex Browser tab at http://127.0.0.1:3200/ shows live and an image.
A visible Swift change has appeared in a new simulator screenshot after watcher rebuild/relaunch.

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name	ios-codex-preview
description	搭建 iOS 模拟器预览，让 Codex 构建、运行、检查 SwiftUI 应用。

iOS Codex Preview Intel

Use this skill to make an iOS project ready for Codex-driven development with a live right-side preview.

What To Deliver

A booted iOS Simulator.
A built, installed, launched app.
A Browser-visible preview at http://127.0.0.1:3200.
A watcher that rebuilds and relaunches after Swift/Xcode project changes.
A health check that proves simulator, server, watcher, screenshot, and port are working.
Clear project-local commands for start, stop, screenshot, and health.

Preferred Flow

Inspect the project root for .xcodeproj or .xcworkspace, schemes, bundle ID, and existing helper scripts.
Run scripts/install-ios-codex-preview.sh from this skill if the project does not already have scripts/ios-preview/* or if they are stale.
Start the preview with scripts/ios-preview/start-all.sh --daemon.
Open or keep http://127.0.0.1:3200 in the Codex in-app Browser and make it visible.
Run scripts/ios-preview/health.sh.
Prove hot reload by making a small visible SwiftUI text change, waiting for the watcher, and taking a simulator screenshot.

Machine-Specific Rule

On Apple Silicon, an official serve-sim / iOS Simulator Browser flow may be available. Prefer it only when it actually runs.

Important Pitfalls

Do not rely on LaunchAgents for projects under ~/Documents; macOS TCC can block background agents from reading the project.
If a stale LaunchAgent exists, unload and disable it before declaring success:
- launchctl list | rg 'codex.*preview|lotusapp|ios-preview|watch-run'
- launchctl bootout gui/$(id -u) ~/Library/LaunchAgents/<plist>
- move the plist to ~/Library/LaunchAgents.disabled/.
Health checks must match both relative and absolute process paths, e.g. scripts/ios-preview/server.mjs, not just node scripts/....
A reachable /status endpoint alone is not sufficient. The watcher process must be alive and a fresh screenshot must be updating.

Commands

Install/update preview helpers in a project:

/Users/broncin/.codex/skills/ios-codex-preview/scripts/install-ios-codex-preview.sh

Start:

scripts/ios-preview/start-all.sh --daemon

Stop:

scripts/ios-preview/stop.sh

Health:

scripts/ios-preview/health.sh

Completion Criteria

Only report completion when all are true:

scripts/ios-preview/health.sh exits 0.
curl -sS http://127.0.0.1:3200/status returns ok: true and hasImage: true.
ps shows both server.mjs and watch-run.sh.
Codex Browser tab at http://127.0.0.1:3200/ shows live and an image.
A visible Swift change has appeared in a new simulator screenshot after watcher rebuild/relaunch.