The skill is lean and efficient. It avoids explaining what CSRF, SQL injection, or XSS are — it assumes Claude knows these concepts. Every section serves a direct purpose: the table drives the audit workflow, the core rules provide concrete remediation patterns, and there's no filler text.

Highly actionable: provides specific grep commands for each audit step, executable Ruby code examples for both good and bad patterns, and concrete remediation snippets that are copy-paste ready. Each concern has a clear detection method and fix.

The 10-step review workflow is clearly sequenced in a table with explicit red flags and severity levels. The completion checkpoint provides a structured way to compile findings with severity tiers, and each finding maps back to a specific Core Rule for remediation — forming a clear feedback loop.

The content is well-structured with clear sections (Review Workflow, Core Rules, Integration), and the Integration table references related skills. However, the Core Rules section is fairly lengthy inline content that could potentially be split out, and there are no bundle files to support progressive disclosure despite references to related skills.

The description lists numerous specific concrete actions: validate params via Params DSL, verify CSRF protection in config/app.rb, audit authentication checks via explicit `before :authenticate!`, check authorization with role/permission checks, prevent SQL injection by using ROM query interface, avoid `raw` on user input, store secrets in settings, and return generic error messages for auth failures.

The description explicitly answers both 'what' (a comprehensive list of security checks for Hanami 2.x apps) and 'when' (opens with 'Use when conducting a security audit, security review, vulnerability assessment...'). The 'Use when' clause is explicit and detailed.

Excellent coverage of natural trigger terms users would say: 'security audit', 'security review', 'vulnerability assessment', 'vulnerability check', 'secure coding review', 'Hanami 2.x', plus domain-specific terms like CSRF, SQL injection, XSS, authentication, authorization, and session configuration.

Highly distinctive due to the specific focus on Hanami 2.x framework security auditing with framework-specific details like Params DSL, ROM query interface, config/app.rb, and `before :authenticate!`. This is unlikely to conflict with general security or other framework-specific skills.