Claude Skills by majiayu000

Comprehensive guide for implementing Fullstory's Page Properties API (setProperties with type 'page') for web applications. Teaches proper page naming, contextual data capture, SPA navigation handling, and session-scoped properties. Includes detailed good/bad examples for search results, checkout flows, dashboards, and content pages to help developers enrich page context for analytics and journey mapping.

Comprehensive guide for implementing Fullstory's Element Privacy Controls (fs-exclude, fs-mask, fs-unmask) for web applications. Teaches proper privacy class usage, understanding what data leaves the device, CSS selector rules, and Form Privacy features. Includes detailed good/bad examples for protecting sensitive elements while maintaining session replay utility.

Strategic guide for data privacy in Fullstory implementations. Teaches developers how to decide what data to send, mask, exclude, hash, or replace with joinable keys. Covers regulatory compliance (GDPR, HIPAA, PCI, CCPA), privacy-by-design principles, and balancing analytics value with privacy protection. Acts as a decision framework that references core privacy skills.

Industry-specific guide for implementing Fullstory in B2B SaaS applications. Covers feature adoption tracking, onboarding optimization, churn prediction signals, multi-tenant privacy considerations, role-based experiences, and enterprise customer requirements. Includes detailed examples for dashboards, workflows, settings, and collaboration features.

Framework-agnostic guide for implementing stable, semantic selectors in any web application. Solves the dynamic class name problem caused by CSS-in-JS, CSS Modules, and build tools. Includes patterns for React, Angular, Vue, Svelte, Next.js, Astro, and more. Future-proofed for Computer User Agents (CUA) and AI-powered automation tools. Provides TypeScript patterns, naming taxonomies, and enterprise-scale conventions.

Industry-specific guide for implementing Fullstory in travel and hospitality applications including airlines, hotels, OTAs, car rentals, and vacation packages. Covers booking funnel optimization, search and filtering UX, payment handling (PCI), loyalty programs, and multi-traveler booking flows. Includes detailed examples for search, booking, check-in, and post-trip experiences.

Comprehensive guide for implementing Fullstory's User Consent API for web applications. Teaches proper consent flow implementation, selective capture modes, GDPR/CCPA compliance patterns, and cookie consent integration. Includes detailed good/bad examples for consent banners, preference centers, and privacy-conscious recording to help developers implement privacy-compliant session recording.

Comprehensive guide for implementing Fullstory's User Properties API (setProperties with type 'user') for web applications. Teaches proper property naming, type handling, incremental updates, and special fields (displayName, email). Includes detailed good/bad examples for CRM integration, progressive profiling, and subscription tracking to help developers enrich user profiles for analytics and segmentation.

Comprehensive Fully Kiosk Browser management for Android tablets and kiosk devices. Control screen, brightness, URLs, screensavers, TTS, media playback. Manage device fleets via REST API, MQTT, Fully Cloud. Integrate with Home Assistant. Configure kiosk mode, motion detection, remote admin. Supports Fire tablets, Android tablets, wall panels. Use for dashboards, digital signage, locked kiosks.

Create component documentation with installation, usage examples, and preview sections. Apply when documenting 8-bit components with proper structure and examples.

Create MDX documentation files with proper frontmatter, imports, and component integration. Apply when creating or updating Fumadocs documentation pages in content/docs/.

Register 8-bit components in registry.json for shadcn/ui add command. Apply when adding new components to the component library distribution.

Python function design conventions for this codebase. Apply when writing or reviewing functions including signatures, parameters, return types, and async patterns.

Write concise docstrings for functions. Use when a junior developer needs help describing inputs, outputs, and errors.

Defines the function ordering conventions, where functions that compose other functions appear earlier in the file, regardless of the file type.

Instrument C/C++ with -finstrument-functions for execution tracing and Perfetto visualization

Provision functional consciousness-as-a-service capabilities.

PRDに基づいて機能設計書を作成するスキル。docs/prd.md が存在する場合に、システム構成、データモデル、コンポーネント設計、アルゴリズム設計等を含む機能設計書を作成します。「機能設計書を作成して」「PRDから設計書を作って」「functional design を書いて」等のリクエストで使用してください。

プロダクト要求定義書（docs/product-requirements.md）から機能設計書（docs/functional-design.md）を作成する。 「機能設計して」「設計書を作って」「PRDを設計に落として」「コンポーネント設計」「データモデル設計」 「シーケンス図を書いて」「ER図を作って」などの依頼時に発火。 システム構成図・データモデル・コンポーネント責務・ユースケースフロー・エラー設計を出力。

Designs functional architecture and detailed specifications for PHP/CakePHP applications based on analyzed requirements

Apply functional introspection principles to self-analysis.

Predict metagenome functional content from 16S rRNA marker gene data using PICRUSt2. Infer KEGG, MetaCyc, and EC abundances from ASV tables. Use when functional profiling is needed from 16S data without shotgun metagenomics sequencing.

Profile functional potential of metagenomes using HUMAnN3 and similar tools. Use when obtaining pathway abundances, gene family counts, or functional annotations from metagenomic data.

Promotes functional programming and composition over inheritance while maintaining consistency with WordPress best practices.

Use when writing functional code - covers FP best practices (Lea differs from traditional FP languages)

Write functional tests that test public interfaces only (HTTP APIs via requests, libraries via exported functions, CLIs via command execution). Never test internal functions directly. Expose observability APIs for internal behavior testing.

Use when symfony functional tests

Functional programming patterns with immutable data. Use when writing logic or data transformations.

Validates that code actually works through sandbox testing, execution verification, and systematic debugging. Use this skill after code generation or modification to ensure functionality is genuine rather than assumed. The skill creates isolated test environments, executes code with realistic inputs, identifies bugs through systematic analysis, and applies best practices to fix issues without breaking existing functionality. This ensures code delivers its intended behavior reliably.

Reviews Go function signatures for parameter ordering, return value conventions, and receiver patterns. Use when reviewing function signatures, designing APIs, or seeing complex parameter lists.

Advanced function patterns including declaration styles, closures, scope chains, hoisting, and this binding. Master function composition and advanced techniques.

Apply SOLID, DRY, KISS, YAGNI, and SSOT principles when writing, reviewing, or refactoring code to ensure maintainability and quality.

Core JavaScript fundamentals including variables, data types, operators, control flow, and basic syntax. Essential foundation for all JavaScript development.

Help founders raise capital and build investor relationships. Use when someone is preparing a pitch deck, deciding whether to raise venture capital, meeting with investors, or asking about fundraising strategy.

Map complete funnel from ad to conversion, documenting each step, identifying metrics at each stage, calculating stage-to-stage conversion rates, and highlighting biggest drop-off points. Use for funnel optimization, diagnosing conversion issues, or documenting funnel architecture.

Use when designing dashboards or defining product metrics - decomposes user journey into lifecycle stages (Reach → Activation → Engagement → Retention) with stage-appropriate metrics and identifies value creation/loss at transitions

Validate datasets for Unsloth fine-tuning. Use when the user wants to check a dataset, analyze tokens, calculate Chinchilla optimality, or prepare data for training.

Training manager for Hugging Face Jobs - launch fine-tuning on HF cloud GPUs with optional WandB monitoring

Training manager for local GPU training - validate CUDA, manage GPU selection, monitor progress, handle checkpoints

Training manager for RunPod GPU instances - configure pods, launch training, monitor progress, retrieve checkpoints

Generate Unsloth training notebooks and scripts. Use when the user wants to create a training notebook, configure fine-tuning parameters, or set up SFT/DPO/GRPO training.

Generate comprehensive model cards and upload fine-tuned models to Hugging Face Hub with professional documentation

Use this skill when you need information about `@funstack/static` (the React framework your app is built with). What it is even about, API references, best practices, etc.

FuseCore Modular Architecture - Laravel 12 modular monolith with auto-discovery, React integration, and SOLID principles. Use when creating modules, understanding FuseCore structure, or implementing features in FuseCore projects.

Compare multiple algorithm options and pick the best; use when choosing or optimizing an algorithm.

Design and compare alternative API shapes; use when deciding on endpoints, request or response formats, or versioning.

Compare architecture patterns and select the most suitable; use for system design decisions.

Propose multiple bug-fix strategies and pick the safest; use when a bug has more than one viable fix.

Compare data model designs and pick the best fit; use when modeling new data or refactoring schemas.

Compare performance optimization options and choose the most effective; use when tuning or speeding up a system.