Browse Skills

Isolate the true causal effect of price changes on demand, revenue, and profit using rigorous econometric methods including difference-in-differences, instrumental variables, and synthetic control.

Design production-grade hybrid search systems that combine BM25 keyword search with vector-based semantic retrieval, multi-stage reranking pipelines, and RAG retrieval layers for optimal relevance and recall.

Helps you design effective color systems using modern color spaces (OKLCH, LCH, HSL), generate harmonious palettes, ensure WCAG contrast compliance, create dark mode adaptations, and build semantic color token architectures.

Expert in Bayesian statistical methods — Bayesian A/B testing, credible intervals, prior selection, hierarchical models, and probabilistic decision-making with PyMC and Stan.

Design, audit, and remediate healthcare data workflows for HIPAA Privacy Rule, Security Rule, and Breach Notification Rule compliance with technical safeguards, PHI access controls, and audit trail design.

Guides implementation of Privacy by Design following Ann Cavoukian's 7 foundational principles, covering data minimization, pseudonymization/anonymization techniques, consent architecture, DPIA methodology, privacy-preserving computation (differential privacy, homomorphic encryption), data retention policies, and GDPR Article 25 technical measures for building privacy-respecting systems from the ground up.

Expert puzzle game design guidance covering difficulty ramping, solution elegance, hint system architecture, aha-moment engineering, constraint design, puzzle dependency structures, and procedural puzzle generation grounded in cognitive science.

Specialist in game accessibility covering CVAA compliance, Xbox Accessibility Guidelines, colorblind design, input remapping, subtitle systems, difficulty options, one-handed play, and inclusive design methodology for interactive entertainment.

Design data activation pipelines that sync analytical data from cloud data warehouses back into operational SaaS tools like CRMs, marketing platforms, and support systems.

Design zero-downtime database migration strategies with backward-compatible schema evolution, blue-green database patterns, safe rollback procedures, and data migration orchestration.

Designs retention measurement systems, builds churn prediction models, and creates data-driven intervention strategies that measurably reduce customer churn across SaaS, e-commerce, and subscription businesses.

Design and implement API gateway architectures with optimal routing, security, resilience, and developer experience for distributed systems.

Expert GDScript programming for Godot 4.x covering typed GDScript 2.0, scene tree composition, signals, @export/@onready annotations, Resources, GDExtension C++ integration, and Godot-specific optimization patterns.

Expert Godot 4.x engine guidance covering GDScript 2.0, scene tree architecture, signals, node composition, Resources, GDExtension, and the Vulkan rendering pipeline.

Expert AI assistant for OpenCart e-commerce development, covering MVCL architecture, OCMOD modifications, extension building, multi-store setup, and performance optimization.

Design and deploy Statistical Process Control systems with proper control chart selection, rational subgrouping, process capability analysis, and automated monitoring to detect and reduce process variation in manufacturing and service operations.

Optimize the end-to-end revenue engine by aligning sales, marketing, and customer success data and processes.

Expert guidance for structuring personal memoirs with narrative arc design, chapter architecture, scene construction, voice development, and ethical considerations for writing about real life.

Strategic guidance for building direct-to-consumer brands from scratch, covering brand positioning, narrative development, visual identity, community-led growth, and phased launch strategy using proven frameworks.

Design progressive delivery strategies using feature flags for safe rollouts, experimentation, and operational control.

Expert in Google Ads campaign management across Search, Display, Shopping, and Performance Max. Designs full-funnel advertising strategies with keyword architecture, bid optimization, audience targeting, and conversion tracking for maximum ROAS.

Expert guidance for maximizing LLM context window effectiveness through token budgeting, prompt compression, information placement, caching strategies, and cost-efficient context management.

Guides OKR writing, grading, and organizational alignment using John Doerr methodology, with strategy-to-execution translation and anti-pattern detection.

Designs and executes feature validation experiments that help SaaS product teams make evidence-based build, iterate, or kill decisions using fake door tests, usage signal analysis, and structured experiment frameworks.