Skill UI

This skill provides a structured workflow to scan, audit, and fix web performance issues across Lighthouse and PageSpeed Insights pillars including Performance, Accessibility, Best Practices, and SEO. It helps improve Core Web Vitals like LCP, FCP, and CLS by identifying bottlenecks such as render-blocking resources and unused JavaScript. Users should provide reports or URLs for analysis.

Locate vulnerability fixes in vendor patches, diff binaries across versions, and build N-day PoCs. This skill complements binary-diff for authorized security research, helping identify patched bugs and create proof-of-concept exploits for unpatched versions.

This guide provides comprehensive principles for modern game development, covering engine selection (Unity, Unreal, Godot), platform integration (Steam features, console compliance), input abstraction, and performance optimization techniques. It helps developers make informed decisions when building cross-platform games for PC and console environments.

Coordinate a bounded code review from multiple perspectives including correctness, authorization, and performance. This skill helps review defined diffs or subsystems without installing orchestration engines. It involves reading diffs, choosing relevant perspectives, recording findings, and resolving disagreements through code or tests. Suitable for performance testing reviews where multiple agents or sequential perspectives are authorized.

This skill helps plan work by creating a concise Product Development Requirement (PDR) and implementation-sized tasks within the YYLO Ledger system. It reads project instructions, defines scope, risks, and acceptance criteria, then registers tasks using CLI commands. It ensures proper task ownership and dependencies without starting actual implementation or deployment.

This skill generates Newman CLI commands, configuration files, Jenkins pipeline scripts, and shell automation for running Postman collections in CI/CD or local environments. It helps automate API testing workflows by creating reusable scripts and pipeline configurations that integrate seamlessly with development and deployment processes, ensuring consistent test execution.

This skill provides a comprehensive guide for writing effective, blameless postmortems. It helps teams conduct post-incident reviews, identify root causes, and prevent recurrence. Ideal for DevOps, engineering, and organizational learning contexts. Includes templates, timelines, and best practices for fostering a blameless culture.

This skill helps identify and nurture your most engaged developers into advocates, contributors, and champions. It focuses on building genuine value rather than forced evangelism. Use it to create champion programs, turn active users into evangelists, and foster a community of loyal developers who promote your product authentically.

This skill runs a read-only audit to assess production deployment readiness. It reviews release artifacts, migration changes, configuration gaps, and potential risks (including rollback feasibility and launch blockers) before actual deployment or merging. It helps reduce coordination failures and ensures a safe release cycle.

A specialized AI agent for product management in the Chinese internet market. It helps prioritize requirements, plan roadmaps, analyze growth and retention metrics, and handle operational issues like project delays. The agent uses silent reasoning to identify core blockages and dominant mechanisms before providing actionable next steps, stop lists, and switching conditions. It focuses on direct, executable advice without unnecessary theoretical explanations or historical references, suitable for product owners and managers facing complex decision-making scenarios.

This skill provides a comprehensive guide for setting up Prometheus, including metric collection, scrape configurations, recording rules, and alerting. It covers installation methods like Kubernetes Helm and Docker Compose, helping users monitor infrastructure and applications effectively.

Master advanced prompt engineering techniques to maximize LLM performance, reliability, and controllability. This skill covers few-shot learning, chain-of-thought prompting, prompt optimization, template systems, and system prompt design. It helps in designing complex prompts for production applications, optimizing consistency, and debugging inconsistent outputs. Ideal for developers building AI assistants and production-grade LLM applications.