Research

Design and analyze A/B tests, calculate statistical significance, and determine sample sizes for conversion optimization and experiment validation

Create comprehensive API reference documentation with OpenAPI/Swagger specs, REST endpoints, authentication, examples, and SDKs. Use when documenting REST APIs, GraphQL APIs, endpoint documentation, or OpenAPI specifications.

Four-phase debugging framework - root cause investigation, pattern analysis,hypothesis testing, implementation. Ensures understanding before attempting fixes.

Conduct statistical tests including t-tests, chi-square, ANOVA, and p-value analysis for statistical significance, hypothesis validation, and A/B testing

Gate 0 research phase for pre-dev workflow. Dispatches 3 parallel research agentsto gather codebase patterns, external best practices, and framework documentationBEFORE creating PRD/TRD. Outputs research.md with file:line references.

Discover patterns, distributions, and relationships in data through visualization, summary statistics, and hypothesis generation for exploratory data analysis, data profiling, and initial insights

Create detailed user personas based on research and data. Develop realistic representations of target users to guide product decisions and ensure user-centered design.

Proactive requirements gathering - systematically interviews the user to uncoverambiguities, preferences, and constraints BEFORE implementation begins.

Technical writing specialists for functional and API documentation. Dispatch whenyou need to create guides, conceptual docs, or API references following establisheddocumentation standards.

Analyze user research data to uncover insights, identify patterns, and inform design decisions. Synthesize qualitative and quantitative research into actionable recommendations.

10 pre-dev workflow skills + 3 research agents organized into Small Track (4 gates, <2 days) andLarge Track (9 gates, 2+ days) for systematic feature planning with research-first approach.

Multi-model AI consultation and research. Supports CONSULTATION MODE (ask single expert), RESEARCH MODE (parallel multi-agent), or DELIBERATION MODE (agents debate and refine). USE WHEN user says 'ask gemini', 'consult codex' (consultation), 'do research' (research), or 'deliberate on' (deliberation).

Patterns and structure for writing API reference documentation includingendpoint descriptions, request/response schemas, and error documentation.

Create static visualizations including bar charts, line plots, pie charts, and more. Use when generating charts for reports, creating data visualizations, producing publication-quality figures, or embedding plots in PDF/HTML reports.

Matplotlib library for creating financial visualizations. Use for plotting time series, creating multi-panel figures, stacked bar charts, and generating publication-quality charts.

Use BWA for aligning sequencing reads to a reference genome for variant calling pipelines. Use when mapping short-read Illumina data to reference genomes for variant calling pipelines.

Guide for systemd init system and service management. Use when creating, managing, or debugging system services, timers, and targets. Covers unit files, service lifecycle, dependencies, and journalctl logging.

Comprehensive Storybook story creation guidelines. Covers story structure, naming conventions, and visual testing patterns. Reference this skill when creating Storybook stories for components with conditional rendering or complex UI states during Phase 2 (Testing & Stories).

Comprehensive React component coding guidelines, refactoring principles, and architectural patterns. **CRITICAL**: Focuses on patterns AI commonly fails to implement correctly, especially testability, props control, and component responsibility separation. Reference this skill when implementing or refactoring React components during Phase 2.

Visualize 3D meshes, point clouds, and volumetric data using PyVista. Use for interactive plotting, mesh inspection, and creating publication-quality figures. Built on VTK with simplified Pythonic interface.