Guide · Agent skill

How to use the iOS App Security with Objection agent skill

Updated 2026-10-29 · written with AI from the project's own documentation and checked against our catalogue data

This skill gives an AI agent a structured workflow for runtime security testing of iOS apps using Objection, a toolkit built on Frida. It is meant for security testers working on authorized penetration tests and for students learning mobile runtime testing. After reading this guide you will know what the skill does, how to install it, how to ask for it in plain language, and what you need before running it.

iOS App Security with Objectionmukul975/Anthropic-Cybersecurity-Skills · Apache-2.0 Download the skill

Quick start

1Set up the test environment. Install Objection and Frida tools, and prepare either a jailbroken device with Frida server running or a repackaged IPA for a non-jailbroken device.
2Install the skill folder. Download the ZIP, unzip it into ~/.claude/skills/ or a project's .claude/skills/ folder, or upload it under Settings → Capabilities → Skills in the Claude apps.
3Ask for an authorized assessment. Describe the task in plain language, state that the test is authorized, and name your device setup so the agent follows the right path.
4Attach Objection to the app. Attach to the running app by bundle ID so the agent can open the interactive Objection session.
5Work through the MASVS categories. Follow the storage, network, authentication, resilience and platform steps, and record each finding with the report template as you go.

What does the skill make the agent do?

Once installed, the agent can guide a tester through checking an iOS app while it is running. The source describes tasks such as looking at keychain and sandbox data, listing app classes and methods, watching method calls, and testing whether SSL certificate pinning or jailbreak detection can be bypassed.

The workflow is organized around the OWASP MASVS mobile security categories, including STORAGE, NETWORK, AUTH, RESILIENCE and PLATFORM. The skill also includes a report template for recording findings.

Storage: keychain dumps, NSUserDefaults, SQLite databases, pasteboard monitoring
Network: disabling SSL pinning and watching network class calls
Authentication: listing and searching classes, hooking authentication methods, watching LAContext
Resilience: disabling or simulating jailbreak detection, searching memory for strings
Platform: reviewing URL scheme handlers and app binary information

What you need before you start

The skill assumes a working testing setup. Check these items before you ask the agent for help, because the skill does not install them for you.

Objection and Frida tools are installed with pip. The target device must either be jailbroken with a Frida server running, or be a non-jailbroken device with a repackaged IPA that includes a Frida gadget. macOS is recommended for iOS testing, with Xcode and ideviceinstaller.

Python 3.10+ with pip
Objection, installed with pip install objection
Frida tools, installed with pip install frida-tools
A target iOS device, jailbroken with Frida server or non-jailbroken with a repackaged IPA
macOS recommended, with Xcode and ideviceinstaller
A USB connection to the device, or a network Frida server
Burp Suite for traffic interception (optional)

pip install objection
pip install frida-tools

Install the skill (ZIP download or Claude apps upload)

Download the skill ZIP from the page where you found this guide, then unzip it. For a personal setup, place the unzipped skill folder in ~/.claude/skills/. For a single project, place it in that project's .claude/skills/ folder.

If you use the Claude apps instead, open Settings, go to Capabilities, and upload the skill under Skills. Either way, the skill folder should contain SKILL.md, which is the file that describes the workflow, along with the references, assets and scripts folders.

Personal install: ~/.claude/skills/
Project install: .claude/skills/ inside your project
Claude apps: Settings → Capabilities → Skills

How to trigger the skill with natural requests

You do not need to type the skill name. Describe the job in plain terms that match the skill's purpose: an authorized iOS penetration test, runtime inspection, or checking SSL pinning or jailbreak detection. Say what you have set up, such as a jailbroken device or a repackaged IPA, so the agent can choose the right path.

Include the authorization context in your request. The skill is intended only for apps you are permitted to examine, and the agent should be told that the test is authorized.

Example: Help me check which keychain items the app com.target.app can read during our authorized pentest. My device is jailbroken with Frida server running.
Example: Walk me through testing whether this iOS app's SSL pinning can be bypassed so I can see its traffic in Burp Suite. We have written authorization.
Example: My device is not jailbroken. Guide me through patching the IPA with a Frida gadget and installing it with ideviceinstaller.
Example: Which Objective-C classes in this app have names containing Auth or Login, and how would I watch their method calls?

Key commands the agent will walk through

The skill's workflow uses Objection commands from inside its interactive REPL. The examples below are taken from the skill's documentation. Run them only against apps you are authorized to test.

Objection changes runtime behavior only. Its modifications reset when the app restarts, so record findings as you go.

Attach to a running app by bundle ID
Dump keychain items the app can access
Disable SSL pinning
Disable or simulate jailbreak detection
Search memory for strings such as password or api_key

objection --gadget "com.target.app" explore
ios keychain dump
ios sslpinning disable
ios jailbreak disable
memory search "password" --string

What people use it for

Checking whether an app leaves credentials or tokens in the keychain or NSUserDefaults during an authorized penetration test.
Testing whether certificate pinning blocks traffic inspection in Burp Suite for a permitted app.
Learning how runtime hooking works by watching method calls on a sample app in a course lab.
Helping a developer check how their own iOS app stores data and handles certificate pinning.

Frequently asked questions

Is the Objection agent skill free?

The skill is published under the Apache-2.0 licence, according to its source listing. Objection and Frida are separate tools that you install yourself with pip.

What do I need to install before using this skill?

You need Python 3.10+ with pip, Objection, Frida tools, and a target iOS device that is either jailbroken with Frida server or non-jailbroken with a repackaged IPA. macOS with Xcode and ideviceinstaller is recommended.

Can I use this skill on a production device?

The skill says not to use it on production devices without explicit authorization. Objection modifies app runtime behavior and may trigger security monitoring.

Does the skill need an internet connection?

The skill's listing says it does not use the network, though a Frida server can be reached over the network as an option. Burp Suite is optional for traffic interception.

How is this different from using Objection directly?

The skill packages Objection commands into a structured workflow mapped to OWASP MASVS categories, with a report template. You still need Objection and a working device setup.

Why does my app crash when I attach Objection?

The skill notes that some apps detect Frida. Using --startup-command to hook anti-Frida checks early in the app lifecycle is one approach the skill describes.

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Our verdict

Use this skill if you are a security tester or student who already has Objection and a suitable iOS test device, and who has written authorization to examine the app. Pick something else if you need general iOS development help, or if you cannot get a jailbroken device or repackaged IPA setup working.

Download the skill