xcode-project-setup: Coding Workflows for AI Agents | OpenAgentSkill

Overview

Safely modifies Xcode projects (.pbxproj) to add Swift Packages and link files. Use this skill whenever an iOS project needs dependencies installed (e.g. Firebase, Alamofire).

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Xcode Project Setup

⛔️ CRITICAL RULES & ENVIRONMENT CHECKS

Before performing any Xcode setup or file manipulation, you MUST adhere to the following rules. A hefty fee will be applied if you violate them.

1. The Anti-Ruby Mandate

You are strictly forbidden from using Ruby, Rails, or any Ruby gems (including the xcodeproj gem). Under no circumstances may you write or execute Ruby scripts.

2. Modern Xcode Folder Synchronization

Modern Xcode projects support folder synchronization. When adding new source code (.swift) or resource files, simply write them to the correct directory on disk. They will be automatically included in the Xcode project. Never manually modify the .pbxproj file to add files.

3. Allowed Scripting Languages

If you absolutely must write a script to manipulate the project environment (e.g., configuring SPM packages beyond what the provided xcode_spm_setup script does), you must use Swift. Only as an absolute last resort, if Swift is completely unviable, may you use Node.js or TypeScript.

4. Toolchain Verification

Because this skill relies entirely on a native Swift script, you must verify the environment:

Run swift --version before proceeding.
If the Swift command is not found, you must stop and recommend the user install the Swift toolchain (e.g., via xcode-select --install on macOS), or ask if you can attempt to install it for them. Do not attempt to proceed without Swift.

5. Mandatory Linker Flags for Static Frameworks (Firebase)

When setting up SPM dependencies that heavily rely on internal Objective-C categories and +load methods (such as the Firebase iOS SDK suite), the Apple linker will aggressively strip these methods out if they are linked statically.

This causes fatal runtime crashes (e.g., FirebaseAuth/Auth.swift:167: Fatal error: Unexpectedly found nil).

The provided xcode_spm_setup Swift script automatically injects the -ObjC flag to OTHER_LDFLAGS when adding Firebase products. However, you should still verify it is present in the build settings if you encounter issues.

Failing to include this flag when adding Firebase dependencies is a critical error.

Empty Directory Workflow

If you are asked to build an iOS app or configure Xcode dependencies but no .xcodeproj or .xcworkspace exists, you MUST ask the user to create the project first:

"No Xcode project found in this directory. Please create an empty Xcode project manually and let me know when you are ready to proceed."

Wait for the user to confirm they have created the .xcodeproj via Xcode, then proceed with the Standard Xcode Workflow below.

Standard Xcode Workflow

Do not use raw text parsing, sed, or Ruby scripts to modify .pbxproj files directly.

Instead, execute the Swift configuration package bundled with this skill (scripts/xcode_spm_setup) to securely install SPM packages and link optional config files (like GoogleService-Info.plist).

CRITICAL: Always Use Latest SDK Version

To ensure access to the latest features and security fixes, always use the most recent version of the Firebase iOS SDK. Check for the latest release version at https://github.com/firebase/firebase-ios-sdk/releases.

Use the most recent version number (e.g., 11.x.y) in your commands instead of hardcoded placeholders.

Understanding the Script's Actions

When adding a Swift Package to an Xcode project, two distinct steps must occur:

Adding the package repository dependency (e.g., https://github.com/Alamofire/Alamofire).
Selecting the target (e.g., MyApp), navigating to General > Frameworks, Libraries, and Embedded Content, and hitting the + button to explicitly link the specific product modules (e.g., Alamofire).

The provided xcode_spm_setup Swift script automatically handles BOTH of these steps for you. By passing the list of modules as arguments, it safely injects the package dependency and automatically wires those modules to the main target's Frameworks build phase. You do not need to do any manual linking.

Usage

Locate the package path: Find the absolute path to this skill's scripts/xcode_spm_setup directory on disk.
Execute: Run the native swift run command using the signature below:

swift run --package-path <PATH_TO_SKILL>/scripts/xcode_spm_setup xcode_spm_setup <ProjectPath.xcodeproj> <RepoURL> <VersionRequirement> [--plist <Optional/Path/To/Config.plist>] <Product1> [Product2 ...]

Example 1: Generic Package (e.g., Alamofire)

Adding Alamofire to a standard Xcode project. Notice there is no --plist flag.

swift run --package-path /Users/foo/.agents/skills/xcode-project-setup/scripts/xcode_spm_setup xcode_spm_setup MyApp.xcodeproj https://github.com/Alamofire/Alamofire 5.8.1 Alamofire

Example 2: Firebase (Requires Plist)

Adding Firebase and linking the GoogleService-Info.plist to the resources build phase automatically. Note: Replace 11.0.0 with the actual latest version from the releases page.

swift run --package-path /Users/foo/.agents/skills/xcode-project-setup/scripts/xcode_spm_setup xcode_spm_setup MyApp.xcodeproj https://github.com/firebase/firebase-ios-sdk 11.0.0 --plist MyApp/GoogleService-Info.plist FirebaseCore FirebaseAuth FirebaseFirestore

Note: The script is idempotent. It will automatically skip linking files or packages that are already present in the project.

View source ↗

File metadata

name: xcode-project-setup
description: Safely modifies Xcode projects (.pbxproj) to add Swift Packages and link files. Use this skill whenever an iOS project needs dependencies installed (e.g. Firebase, Alamofire).
compatibility: Requires Swift to be installed locally and macOS environment.
metadata:
  category: ApplicationDevelopment

View original text

---
name: xcode-project-setup
description: Safely modifies Xcode projects (.pbxproj) to add Swift Packages and link files. Use this skill whenever an iOS project needs dependencies installed (e.g. Firebase, Alamofire).
compatibility: Requires Swift to be installed locally and macOS environment.
metadata:
category: ApplicationDevelopment
---

# Xcode Project Setup

## ⛔️ CRITICAL RULES & ENVIRONMENT CHECKS

Before performing any Xcode setup or file manipulation, you **MUST** adhere to
the following rules. A hefty fee will be applied if you violate them.

### 1. The Anti-Ruby Mandate

You are **strictly forbidden** from using Ruby, Rails, or any Ruby gems
(including the `xcodeproj` gem). Under no circumstances may you write or execute
Ruby scripts.

### 2. Modern Xcode Folder Synchronization

Modern Xcode projects support folder synchronization. When adding new source
code (`.swift`) or resource files, simply write them to the correct directory on
disk. They will be automatically included in the Xcode project. **Never manually
modify the `.pbxproj` file to add files.**

### 3. Allowed Scripting Languages

If you absolutely must write a script to manipulate the project environment
(e.g., configuring SPM packages beyond what the provided `xcode_spm_setup`
script does), you **must use Swift**. Only as an absolute last resort, if Swift
is completely unviable, may you use Node.js or TypeScript.

### 4. Toolchain Verification

Because this skill relies entirely on a native Swift script, you must verify the
environment:

- Run `swift --version` before proceeding.
- If the Swift command is not found, you must stop and recommend the user
install the Swift toolchain (e.g., via `xcode-select --install` on macOS), or
ask if you can attempt to install it for them. Do not attempt to proceed
without Swift.

### 5. Mandatory Linker Flags for Static Frameworks (Firebase)

When setting up SPM dependencies that heavily rely on internal Objective-C
categories and `+load` methods (such as the Firebase iOS SDK suite), the Apple
linker will aggressively strip these methods out if they are linked statically.

This causes fatal runtime crashes (e.g.,
`FirebaseAuth/Auth.swift:167: Fatal error: Unexpectedly found nil`).

**The provided `xcode_spm_setup` Swift script automatically injects the `-ObjC`
flag to `OTHER_LDFLAGS` when adding Firebase products.** However, you should
still verify it is present in the build settings if you encounter issues.

- Failing to include this flag when adding Firebase dependencies is a critical
error.

______________________________________________________________________

## Empty Directory Workflow

If you are asked to build an iOS app or configure Xcode dependencies but **no
`.xcodeproj` or `.xcworkspace` exists**, you MUST ask the user to create the
project first:

**"No Xcode project found in this directory. Please create an empty Xcode
project manually and let me know when you are ready to proceed."**

Wait for the user to confirm they have created the `.xcodeproj` via Xcode, then
proceed with the Standard Xcode Workflow below.

______________________________________________________________________

## Standard Xcode Workflow

Do not use raw text parsing, `sed`, or Ruby scripts to modify `.pbxproj` files
directly.

Instead, execute the Swift configuration package bundled with this skill
(`scripts/xcode_spm_setup`) to securely install SPM packages and link optional
config files (like `GoogleService-Info.plist`).

### **CRITICAL: Always Use Latest SDK Version**

To ensure access to the latest features and security fixes, always use the most
recent version of the Firebase iOS SDK. Check for the latest release version at
[https://github.com/firebase/firebase-ios-sdk/releases](https://github.com/firebase/firebase-ios-sdk/releases).

- Use the most recent version number (e.g., `11.x.y`) in your commands instead
of hardcoded placeholders.

### Understanding the Script's Actions

When adding a Swift Package to an Xcode project, two distinct steps must occur:

1. Adding the package repository dependency (e.g.,
`https://github.com/Alamofire/Alamofire`).
1. Selecting the target (e.g., `MyApp`), navigating to **General > Frameworks,
Libraries, and Embedded Content**, and hitting the `+` button to explicitly
link the specific product modules (e.g., `Alamofire`).

**The provided `xcode_spm_setup` Swift script automatically handles BOTH of
these steps for you.** By passing the list of modules as arguments, it safely
injects the package dependency and automatically wires those modules to the main
target's Frameworks build phase. You do not need to do any manual linking.

## Usage

1. **Locate the package path:** Find the absolute path to this skill's
`scripts/xcode_spm_setup` directory on disk.
1. **Execute:** Run the native `swift run` command using the signature below:

```bash
swift run --package-path <PATH_TO_SKILL>/scripts/xcode_spm_setup xcode_spm_setup <ProjectPath.xcodeproj> <RepoURL> <VersionRequirement> [--plist <Optional/Path/To/Config.plist>] <Product1> [Product2 ...]
```

### Example 1: Generic Package (e.g., Alamofire)

Adding Alamofire to a standard Xcode project. Notice there is no `--plist` flag.

```bash
swift run --package-path /Users/foo/.agents/skills/xcode-project-setup/scripts/xcode_spm_setup xcode_spm_setup MyApp.xcodeproj https://github.com/Alamofire/Alamofire 5.8.1 Alamofire
```

### Example 2: Firebase (Requires Plist)

Adding Firebase and linking the `GoogleService-Info.plist` to the resources
build phase automatically. *Note: Replace `11.0.0` with the actual latest
version from
[the releases page](https://github.com/firebase/firebase-ios-sdk/releases).*

```bash
swift run --package-path /Users/foo/.agents/skills/xcode-project-setup/scripts/xcode_spm_setup xcode_spm_setup MyApp.xcodeproj https://github.com/firebase/firebase-ios-sdk 11.0.0 --plist MyApp/GoogleService-Info.plist FirebaseCore FirebaseAuth FirebaseFirestore
```

*Note: The script is idempotent. It will automatically skip linking files or
packages that are already present in the project.*

Review the source

Skill source recorded

Skill instructions are recorded. This is not a runtime test, safety guarantee or compatibility certification.

Review before install: Avoid automatic install

The SKILL.md excerpt is truncated, but the provided content is clear and complete enough for evaluation.
The skill relies on a bundled Swift script; its source is not reviewed here, but it is from the official Firebase repository and appears to perform only intended project modifications.
Quality score needs review

Open full audit

Listed tools are metadata hints, not tested compatibility. Agent prompts are suggested handoffs.

Start with one small task

1Read the source. Confirm the input, expected output, dependencies and permissions.
2Ask your agent for a plan. Approve setup and any costs before running a small isolated test.
3Check the output and changed files. Report only what actually ran; keep the source revision for reproduction.

Check the source for dependencies, API keys and third-party costs. A public repository does not mean every service is free.

Source & trust

Indexed

Repository metadata and review signals are advisory. Popularity, source discovery and successful execution are different facts.

License: Apache-2.0
Version: 1.0.0
Last GitHub push: Sep 2, 2026
Registry updated: Sep 5, 2026
Instruction path: skills/xcode-project-setup/SKILL.md @ a0b4e143f40c

Version reported in registry metadata; check source releases before relying on it.

Quality

73/100

Strong

Trust

63/100

Sandbox only

Audit

79/100

Needs review

Agent access

This page exposes the same decision, trust, audit, use-case, and install signals through the Registry API, so agents can rank this skill without scraping the UI.

Open install API LLM text format Open manifest Auto-resolve Plan

More details

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Creator: firebase
Source: firebase/agent-skills
Indexed by: OpenAgentSkill community index

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This Registry indexed listing is attributed to firebase but is not marked official yet. Claim it to add a verified owner signal and make future launch, install, and audit updates easier to trust.

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Creator backlink kit

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Show the canonical listing, current trust and audit signals, and real Agent-Proven evidence where developers evaluate the repository.

[![Listed on OpenAgentSkill](https://www.openagentskill.com/api/badge/firebase-xcode-project-setup?metric=listed&label=Listed)](https://www.openagentskill.com/skills/firebase-xcode-project-setup?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[![OpenAgentSkill Trust](https://www.openagentskill.com/api/badge/firebase-xcode-project-setup?metric=trust&label=Trust)](https://www.openagentskill.com/skills/firebase-xcode-project-setup?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)
[![OpenAgentSkill Audit](https://www.openagentskill.com/api/badge/firebase-xcode-project-setup?metric=audit&label=Audit)](https://www.openagentskill.com/skills/firebase-xcode-project-setup/audit)
[![Agent Proven](https://www.openagentskill.com/api/badge/firebase-xcode-project-setup?metric=proven&label=Agent%20Proven)](https://www.openagentskill.com/skills/firebase-xcode-project-setup?ref=github&utm_source=github&utm_medium=referral&utm_campaign=creator_badge)

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Community signal

Share whether this skill looks useful for your agent workflow. Aggregated feedback improves rankings over time.