Structured guide for setting up A/B tests with mandatory gates for hypothesis, metrics, and execution readiness.

Creating interactive data visualisations using d3.js. This skill should be used when creating custom charts, graphs, network diagrams, geographic visualisations, or any complex SVG-based data...

Optimize end-to-end application performance with profiling, observability, and backend/frontend tuning. Use when coordinating performance optimization across the stack.

Provide proven marketing strategies and growth ideas for SaaS and software products, prioritized using a marketing feasibility scoring system.

Use when starting any conversation - establishes how to find and use skills, requiring Skill tool invocation before ANY response including clarifying questions

This skill should be used when the user asks to "attack Active Directory", "exploit AD", "Kerberoasting", "DCSync", "pass-the-hash", "BloodHound enumeration", "Golden Ticket", "Silver Ticket",...

Write idiomatic C++ code with modern features, RAII, smart

Systematic improvement of existing agents through performance analysis, prompt engineering, and continuous iteration.

Optimize Bazel builds for large-scale monorepos. Use when configuring Bazel, implementing remote execution, or optimizing build performance for enterprise codebases.

Expert C4 Code-level documentation specialist. Analyzes code

Tailwind CSS v4 principles. CSS-first configuration, container queries, modern patterns, design token architecture.

AI-powered image editing with style transfer and object removal

Analyzes keyword usage in provided content, calculates density,

Master Julia 1.10+ with modern features, performance optimization,

Master dbt (data build tool) for analytics engineering with model organization, testing, documentation, and incremental strategies. Use when building data transformations, creating data models, or...

Set up Prometheus for comprehensive metric collection, storage, and monitoring of infrastructure and applications. Use when implementing metrics collection, setting up monitoring infrastructure,...

Modern JavaScript/TypeScript development with Bun runtime. Covers package management, bundling, testing, and migration from Node.js. Use when working with Bun, optimizing JS/TS development speed,...

GraphQL gives clients exactly the data they need - no more, no less. One endpoint, typed schema, introspection. But the flexibility that makes it powerful also makes it dangerous. Without proper...

Expert C4 Context-level documentation specialist. Creates

How to use a Win32 build of BusyBox to run many of the standard UNIX command line tools on Windows.