Skill UI

SkillCheck validates SKILL.md files against the agentskills specification and Anthropic best practices. It performs read-only checks on structure, semantics, naming, and quality to catch errors before publishing. The tool provides a score, grade, and detailed report with fix suggestions for critical issues to ensure high-quality skill authoring.

This tool audits the activation metadata of coding skills used by AI agents. It grades skills (A-F) based on description clarity, simulates which skill a prompt will trigger, and identifies metadata collisions where one skill might silently overshadow another. It is essential for ensuring robust, predictable, and reliable AI agent behavior during development and CI processes.

This skill provides comprehensive diagnosis and optimization for agent skill libraries. By analyzing historical session transcripts from platforms like Claude Code and Codex, alongside static skill file checks, it scores each skill across 8 dimensions. It identifies issues such as low trigger rates, poor post-invocation user reaction, and incomplete workflow execution, generating a prioritized report (P0/P1/P2) to significantly improve the agent's overall performance and reliability.

Conduct authorized security assessments of SMTP servers to identify open relays, user enumeration, weak authentication, TLS issues, and misconfigurations using nmap, hydra, and smtp-user-enum.

This skill guides the mastery of smart contract security best practices for Solidity. It is essential for writing robust, secure, and efficient contracts, auditing existing code for common vulnerabilities (such as reentrancy, overflow, and access control issues), and implementing secure DeFi protocols. It focuses on preventing common attack vectors while optimizing gas usage.

This skill verifies code implementations strictly adhere to documentation specifications, especially for blockchain smart contracts. It compares code against whitepapers and design documents to identify gaps, undocumented behaviors, or compliance issues. Ideal for auditing protocol implementations, ensuring deterministic alignment between intended logic and actual code execution without relying on prior knowledge.

Diagnose slow SQL queries using execution plans, preserve results, and validate indexing or query modifications against representative data. This skill helps debug performance issues, design efficient schemas, reduce database load, and improve application scalability for growing datasets.

Manage SSL/TLS certificates for web servers, Kubernetes clusters, and internal services. Covers Let's Encrypt with Certbot, automated renewal, cert-manager deployment, and configuration of ClusterIssuers and Certificate resources.

Practical IT troubleshooting runbooks for startups and small teams without dedicated IT staff. Covers SSO lockouts, network issues, laptop performance, and macOS administration with copy-paste commands.

This skill handles tasks involving Supabase, a backend-as-a-service platform. It covers database management, authentication, edge functions, storage, and real-time features. It includes guidance on client library integration with frameworks like Next.js and React. The skill emphasizes verifying changes against documentation, securing data with Row Level Security (RLS), and managing API keys safely. It helps resolve auth issues and implement secure database policies.

This expert reviews and rectifies complex Swift Concurrency issues, such as actor isolation violations, Sendable safety breaches, and data races. It applies modern patterns (like `@MainActor` and `actor` usage) to ensure code adheres to Swift 6.2+ standards while minimizing behavior changes. Use it when debugging concurrency warnings or migrating legacy codebases.

This skill provides a comprehensive, structured workflow for diagnosing performance bottlenecks in SwiftUI applications. It guides users through a code-first review to detect common issues like invalidation storms, layout thrash, or heavy main-thread work. When code review is insufficient, it provides detailed guidance on collecting runtime evidence using Instruments, enabling precise root cause analysis and targeted remediation strategies.