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

全面的AB测试分析工具，支持实验设计、统计检验、用户分群分析和可视化报告生成。用于分析产品改版、营销活动、功能优化等AB测试结果，提供统计显著性检验和深度洞察。

Use when designing experiments for subject lines, offers, cadences, or

Abandon an incomplete increment (requirements changed, obsolete)

Download and manage abqpy API documentation. Use when user asks about API documentation, API reference, or downloading Abaqus docs.

Read analysis results. Use when user asks about maximum stress, extracting displacements, reaction forces, or exporting results. Post-processes ODB files.

Master skill for Abaqus FEA scripting. Use for any finite element analysis, topology optimization, or Abaqus Python scripting task. Routes to appropriate specialized skills.

Abductive analysis for qualitative interview data following Timmermans & Tavory. Guides you through theory-first analysis that recognizes anomalies and generates novel theoretical insights through systematic puzzle exploration.

Implement REST APIs in ABP Framework with AppServices, DTOs, pagination, filtering, and authorization. Use when building API endpoints for ABP applications.

Generate ABP Application.Contracts layer scaffolding (interfaces, DTOs, permissions) from technical design. Enables parallel development by abp-developer and qa-engineer. Use when: (1) backend-architect needs to generate contracts, (2) preparing for parallel implementation workflow, (3) creating API contracts before implementation.

ABP Framework domain layer patterns including entities, aggregates, repositories, domain services, and data seeding. Use when: (1) creating entities with proper base classes, (2) implementing custom repositories, (3) writing domain services, (4) seeding data.

ABP Framework cross-cutting patterns including authorization, background jobs, distributed events, multi-tenancy, and module configuration. Use when: (1) defining permissions, (2) creating background jobs, (3) publishing/handling distributed events, (4) configuring modules.

ABP Framework application layer patterns including AppServices, DTOs, Mapperly mapping, Unit of Work, and common patterns like Filter DTOs and ResponseModel. Use when: (1) creating AppServices, (2) mapping DTOs with Mapperly, (3) implementing list filtering, (4) wrapping API responses.

Use when designing GraphQL schemas with Absinthe. Covers type definitions, interfaces, unions, enums, and schema organization patterns.

Expert in groups, rings, fields, and algebraic structures with applications to cryptography and number theory

Design abstract strategy games with perfect information, no randomness, and strategic depth. Use when designing a board game, exploring abstract strategy games, brainstorming game mechanics, or evaluating game balance. Keywords: board game, game design, strategy, mechanics, balance.

Use when explaining concepts at different expertise levels, moving between abstract principles and concrete implementation, identifying edge cases by testing ideas against scenarios, designing layered documentation, decomposing complex problems into actionable steps, or bridging strategy-execution gaps. Invoke when user mentions abstraction levels, making concepts concrete, or explaining at different depths.

Toolkit for creating an entertainingly stupid README that manages to give off Tim & Eric, Steve Brule vibes while maintaining a level of technical acumen that is expected of a modern open source project. This skill applies when users request a silly or absurd README.

Quality assurance review for implementations. Use when reviewing code quality, checking implementation standards, performing QA cycles, or validating feature quality.

将抽象的Acceptance Criteria（Given-When-Then）转换为具体的数值示例和真实对话，让AC对PM/客户/测试人员更易懂。适合在AC编写完成后、准备测试或向客户展示时使用，当AC格式正确但过于抽象时。帮助不熟悉BDD的PM/BA/测试人员理解测试场景，让AC从抽象规则变成可直接用于手动测试的具体步骤。

When the user requests information about academic benchmarks, datasets, or research papers, particularly in machine learning, deep learning, or logical reasoning domains. This skill enables systematic research of academic benchmarks by searching web sources, downloading and analyzing arXiv papers, extracting key metadata (number of tasks, training availability, difficulty levels), and compiling comparative summaries. It triggers on requests involving dataset comparisons, benchmark analysis, or academic paper research for table creation.

When the user needs to integrate multiple data sources (Canvas API, user memory, file systems) to create comprehensive academic reports. This skill combines course information, assignment details, submission status, and user context to generate actionable insights. Triggers include requests that involve cross-referencing multiple data sources or creating consolidated academic reports from disparate systems.

Use when writing recommendation letters, reference letters, or award nominations for students, postdocs, or colleagues. Invoke when user mentions recommendation letter, reference, nomination, letter of support, endorsement, or needs help with strong advocacy, comparative statements, or evidence-based character assessment.

Write academic research documents following academic guidelines with peer-reviewed sources from Google Scholar and other academic databases. Always verify source credibility and generate IEEE standard references. Use for research papers, literature reviews, technical reports, theses, dissertations, conference papers, and academic proposals requiring proper citations and scholarly rigor.

Academic paper search across 14+ scholarly platforms including arXiv, PubMed, Google Scholar, Web of Science, Semantic Scholar, Sci-Hub, and more. Use for literature review, research discovery, and citation management.

Expert guidance for reviewing academic manuscripts submitted to journals, particularly in political science, economics, and quantitative social sciences. Use when asked to review, critique, or provide feedback on academic papers, research designs, or empirical strategies. Emphasizes methodological rigor, causal identification strategies, and constructive feedback on research design.

Transform academic course assignment PDFs into structured, actionable markdown checklists with dates, unique IDs, and custom tags. Asks when the user will start, assigns tasks only to weekdays (Monday-Friday), respects weekends automatically, and calculates forum deadlines 3 days before due date. Use this skill when the user uploads academic PDFs or asks to create a task plan from course assignments.

Expert knowledge of academic writing standards for peer-reviewed papers, including citation integrity, style compliance, clarity, and scientific writing best practices. Use when reviewing or editing academic manuscripts, papers, or research documentation.

Personalized academic writing assistant for university assignments in Chinese and English. Use when users need help writing/revising academic reports, project docs, technical analyses, research reviews, or case studies. Produces natural prose avoiding AI markers. Triggers: academic writing, assignment, report, technical analysis, research review, case study. | 个性化学术写作助手，适用于中英文大学作业。触发词：学术写作、作业、报告、技术分析、研究综述、案例研究、项目文档。

Generates Architecture Decision Records (ADR) for PHP projects. Creates structured decision documentation with context, decision, and consequences.

Generates API documentation for PHP projects. Creates endpoint documentation with parameters, responses, and examples.

Generates ARCHITECTURE.md files for PHP projects. Creates layer documentation, component descriptions, and architectural diagrams.

Generates CHANGELOG.md files following Keep a Changelog format. Creates version history documentation.

Analyzes bounded context boundaries in DDD projects. Detects cross-context coupling, shared kernel violations, context mapping issues, and ubiquitous language inconsistencies. Generates context map diagrams and boundary recommendations.

Analyzes PHP code for encapsulation violations. Detects public mutable state, exposed internals, Tell Don't Ask violations, getter/setter abuse, and information hiding breaches.

Detects leaky abstractions in PHP code. Identifies implementation details exposed in interfaces, concrete returns from abstract methods, framework leakage into domain, and infrastructure concerns in application layer.

Knowledge base for Claude Code formats and patterns. Use when creating or improving commands, agents, skills, or hooks.

Clean Architecture knowledge base. Provides patterns, antipatterns, and PHP-specific guidelines for Clean Architecture and Hexagonal Architecture audits.

Generates code examples for PHP documentation. Creates minimal, copy-paste ready examples with expected output.

Generates Decorator pattern for PHP 8.5. Creates wrapper classes for dynamic behavior addition without inheritance. Includes unit tests.

Generates DI Container configuration for PHP 8.5. Creates module classes, service providers, container configuration, and autowiring setup. Supports Symfony, Laravel, and PHP-DI patterns. Includes unit tests.

Generates PHPUnit integration tests for PHP 8.5. Creates tests with real dependencies, database transactions, HTTP mocking. Supports repositories, API clients, message handlers.

Generates Mediator pattern for PHP 8.5. Creates coordination layer for complex component interactions with event dispatching, request/response handling, and colleague classes. Reduces coupling between interacting objects. Includes unit tests.

Generates InMemory repository implementations for PHP 8.5 testing. Creates fake repositories with array storage, supporting CRUD operations and queries without database.

Generates Null Object pattern for PHP 8.5. Creates safe default implementations eliminating null checks. Includes unit tests.

Generates Transactional Outbox pattern components for PHP 8.5. Creates OutboxMessage entity, repository, publisher, and processor with unit tests.

Generates PSR-11 Container implementation for PHP 8.5. Creates ContainerInterface with service resolution, autowiring support, and exceptions. Includes unit tests.

Generates Read Model/Projection for PHP 8.5. Creates optimized query models for CQRS read side with projections and denormalization. Includes unit tests.

Generates DDD Repository interfaces and implementation stubs for PHP 8.5. Creates domain interfaces in Domain layer, implementation in Infrastructure.