Android Verified Email Skill

Evidence shows emphasis on server-side validation, nonce replay prevention, issuer and signature verification, and clearly states client-side parsing is not for security. No malicious code or overreach found. However, the skill relies on Google services (GMS, Credential Manager) and lacks explicit rollback or recovery mechanisms. Deducted 7 points because least privilege, user confirmation, and data-flow disclosure are mostly clear, but rollback and dependency security details are incomplete.

The skill provides detailed implementation steps, code examples, and exception handling suggestions, but lacks executable test cases or CI configuration, and availability of external services (e.g., Google's verification service) is unverified. Given static review cap, 8 points because key paths are reasonably described but reproducible test evidence is missing.

The skill clearly defines target scenarios (account creation, recovery, re-authentication) and scope (Android client only), and notes non-fit cases (e.g., Workspace accounts). However, it does not clarify trigger conditions (when to invoke the skill) and makes no mention of reachability of Google services from mainland China networks. Deducted 5 points because boundaries are clear but environment fit evidence is insufficient.

The skill has clear structure: overview, requirements, use cases, limitations, implementation steps, security guidelines, and provides related references. However, version history, maintenance responsibility, and known issues list are missing. Author claimed as Google LLC but unverified. Deducted 3 points because documentation is readable but governance information is incomplete.

The core of the skill is to implement verified email retrieval, and the process is clearly described, but no actual run results or user feedback are provided, so direct usability cannot be verified. Given static review cap, 6 points because value proposition is reasonable but evidence of actual effectiveness is lacking.

The skill cites standards and official documentation, but provides no reproducible tests or verification results. It relies on Google's official docs and services but lacks self-demonstration or third-party verification. Given static review cap, 4 points because sources are auditable but coverage is thin.