analyzing-ios-app-security-with-objection
Performs runtime mobile security exploration of iOS applications using Objection, a Frida-powered toolkit that enables security testers to interact with app internals without jailbreaking. Use when assessing iOS app security posture, bypassing client-side protections, dumping keychain items, inspecting filesystem storage, and evaluating runtime behavior. Activates for requests involving iOS security testing, Objection runtime analysis, Frida-based iOS assessment, or mobile runtime exploration.
82
78%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./skills/analyzing-ios-app-security-with-objection/SKILL.mdQuality
Discovery
100%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This is an excellent skill description that clearly defines a narrow, specific domain (iOS runtime security testing with Objection/Frida), lists concrete actions, and provides explicit trigger guidance with both 'Use when' and 'Activates for' clauses. The description uses proper third-person voice throughout and includes rich, natural trigger terms that users in this domain would actually use.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: 'bypassing client-side protections, dumping keychain items, inspecting filesystem storage, and evaluating runtime behavior.' Also names the specific tools (Objection, Frida) and platform (iOS). | 3 / 3 |
Completeness | Clearly answers both 'what' (runtime mobile security exploration with specific actions like bypassing protections, dumping keychain, inspecting filesystem) and 'when' with explicit triggers ('Use when assessing iOS app security posture...' and 'Activates for requests involving...'). | 3 / 3 |
Trigger Term Quality | Includes strong natural keywords users would say: 'iOS security testing', 'Objection', 'Frida', 'mobile runtime exploration', 'keychain', 'jailbreaking', 'runtime analysis', 'iOS app security'. Good coverage of both tool-specific and domain-specific terms. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive niche: iOS-specific, Objection/Frida-specific runtime security testing. Very unlikely to conflict with other skills due to the specific tooling (Objection, Frida) and narrow domain (iOS runtime security exploration). | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
57%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The skill provides highly actionable, concrete Objection commands organized by MASVS categories, which is its primary strength. However, it suffers from being overly monolithic with no progressive disclosure, includes unnecessary concept definitions that Claude already knows, and lacks validation checkpoints between steps despite involving runtime modification of app behavior.
Suggestions
Remove the 'Key Concepts' and 'Tools & Systems' sections — Claude already knows what Keychain, SSL pinning, and Frida are. Move only non-obvious details (like keychain access group scoping) into the relevant workflow step.
Add explicit validation checkpoints after critical steps, e.g., after Step 2 verify the REPL is connected with a test command, after Step 4 confirm SSL pinning bypass is active before directing to Burp Suite.
Split the detailed per-category commands (Steps 3-7) into a separate reference file (e.g., MASVS_COMMANDS.md) and keep SKILL.md as a concise overview with the workflow skeleton and links to detailed commands.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill includes a 'Key Concepts' table explaining terms like 'Keychain' and 'SSL Pinning Bypass' that Claude already understands, and the 'Tools & Systems' section restates information Claude would know. The workflow steps themselves are reasonably efficient, but the definitions table and tool descriptions add unnecessary tokens. | 2 / 3 |
Actionability | Every step provides concrete, copy-paste-ready commands with clear context. The commands are real Objection/Frida CLI commands, not pseudocode, and cover the full testing workflow from environment setup through each MASVS category assessment. | 3 / 3 |
Workflow Clarity | Steps are clearly sequenced and logically organized by MASVS categories, but there are no explicit validation checkpoints or feedback loops. For security testing involving runtime modification of app behavior, there should be verification steps (e.g., confirming Frida attachment succeeded, verifying SSL pinning bypass is active before proceeding to traffic interception). | 2 / 3 |
Progressive Disclosure | The content is a monolithic wall of text with no references to external files. At ~150 lines covering 7 workflow steps, key concepts, tools, and pitfalls, this would benefit from splitting detailed per-category assessment commands into separate reference files while keeping the SKILL.md as a concise overview. | 1 / 3 |
Total | 8 / 12 Passed |
Validation
90%Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.
Validation — 10 / 11 Passed
Validation for skill structure
| Criteria | Description | Result |
|---|---|---|
frontmatter_unknown_keys | Unknown frontmatter key(s) found; consider removing or moving to metadata | Warning |
Total | 10 / 11 Passed | |
- Repository
- mukul975/Anthropic-Cybersecurity-Skills
- Commit
888bbe4
- Reviewed
Table of Contents
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