Generates a complete fullstack application template with Python FastAPI backend and React Vite frontend. Includes OpenAI ChatGPT integration, CORS configuration, comprehensive error handling, and a modern Tailwind CSS + shadcn/ui React UI. Use this skill when the user wants to bootstrap a new fullstack web application project with both API backend and web frontend components ready to go.

Fullstack testing - unit, integration, E2E, coverage

Comprehensive guide for implementing Fullstory's Capture Control APIs (shutdown/restart) for web applications. Teaches proper session management, capture pausing, and resource optimization. Includes detailed good/bad examples for performance-sensitive sections, privacy zones, and SPA cleanup to help developers control when Fullstory captures sessions.

Industry-specific guide for implementing Fullstory in e-commerce and retail applications. Covers conversion funnel optimization, product interaction tracking, cart abandonment analysis, checkout flow privacy (PCI compliance), and customer journey mapping. Includes detailed examples for product pages, cart, checkout, and post-purchase experiences.

Comprehensive guide for implementing Fullstory's Element Properties API across Web, Android, and iOS platforms. Teaches proper type handling, schema construction, value formatting, and platform-specific patterns including view/cell reuse. Includes detailed good/bad examples for e-commerce, forms, and dynamic content to help developers add semantic decoration to their apps and capture business-relevant properties on interactive elements.

Comprehensive getting started guide for Fullstory Browser API v2 implementation. Provides the complete initialization flow, API overview, decision framework for which APIs to use, industry-specific guidance, privacy best practices, and framework integration patterns. Links to all core, meta, industry, and framework skills.

Comprehensive guide for implementing Fullstory's Observer/Callback API (observe method) for web applications. Teaches proper event subscription, callback handling, observer cleanup, and reacting to Fullstory lifecycle events. Includes detailed good/bad examples for session URL capture, initialization handling, and integration with analytics platforms.

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.

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

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.

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.

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

Compare testing strategies and choose the best coverage plan; use when deciding how to test a feature or fix.

Building effective fuzzing harnesses to maximize code coverage and vulnerability discovery through automated input generation

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Creating fuzz driver for Python libraries using LibFuzzer. This skill is useful when agent needs to work with creating fuzz drivers / fuzz targets for Python project and libraries.

Fuzzing strategist persona specializing in dynamic testing guidance, fuzzing strategy development, and crash analysis

Essential fuzzing payloads: SQL injection, command injection, special characters. Curated essentials for vulnerability testing.

This skill should be used when moving data between storage locations, changing data structures, renaming fields, or removing deprecated data. Covers schema versioning, safe migration methods, the Foundry unset operator, and idempotent migrations.

This skill should be used when choosing between flags, settings, or files for data storage, implementing document flags, registering module settings, handling file uploads, or migrating data between storage types. Covers namespacing, scope types, and performance optimization.

**Domain:** Foundry VTT Module/System Development

This skill should be used when importing Foundry classes, registering sheets, loading templates, enriching HTML, or using any Foundry API that has moved to namespaces. Covers compat wrappers, deferred sheet registration, and the modern-first fallback pattern.

Scrapes relevant bulletins from the RBI website intelligently and figures out information about government securities issued. Applicable only for India.

Add, review, or update GA4 event tracking on HTML websites using data attributes and a reusable JavaScript tracker. Use when wiring gtag or GTM dataLayer events, choosing event names/parameters, or extending a base GA4 tracking snippet for clicks and simple interactions.

how to approach tests, types and coverage

Tracking player behavior and game performance through metrics, event tracking, funnel analysis, retention metrics, and integration with analytics platforms for data-driven game development.

Find 10x product opportunities and high-leverage improvements. Use when user wants strategic product thinking, mentions '10x', wants to find high-impact features, or says 'what would make this 10x better', 'product strategy', or 'what should we build next'.

Game design principles. GDD structure, balancing, player psychology, progression.

Expert in interactive entertainment, creating immersive experiences with Unity, Unreal Engine, and Godot.

Use when building game systems, implementing Unity/Unreal features, or optimizing game performance. Invoke for Unity, Unreal, game patterns, ECS, physics, networking, performance optimization.

Generate GameSpec JSON and Lua scripts for the AI Game Platform. Use when creating games, adding features like player movement, enemies, collectibles, or fixing Lua script issues. Supports FPS, 2D side-scrollers, and 3D platformers.

Optimize game code for per-frame performance and GC pressure. Use PROACTIVELY when editing game loops, update functions, render code, or any code that runs every frame. Identifies allocation anti-patterns and provides zero-allocation alternatives.

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Review code changes for game/engine systems with a focused Game Systems Engineer mindset. Use when the user asks to review code, check consistency, or validate changes against AGENTS.md standards, especially for C++ engine, threading, performance, or systems behavior.

Use when planning GameDay exercises, designing failure scenarios, or conducting chaos drills. Covers GameDay preparation, execution, and follow-up.

Complete Game Designer workflow - skill invocation protocol, GDD creation, playtest flow with GDD review, design sessions. MUST load before starting assignments.

Design gamified marketing campaigns using points, badges, leaderboards, streaks, challenges. Use for loyalty programs, referral campaigns, onboarding flows, engagement boosts, email gamification. Provides mechanics selection, psychology alignment, strategy docs, templates, KPIs.

Generate Gantt charts for construction scheduling. Create visual project timelines with dependencies and progress tracking.

Triggered by start-gap-finder.

Onboard company employees (Claude Code CLI users) to use gapless-crypto-clickhouse package with ClickHouse Cloud credentials. Use when company employee needs to set up ClickHouse Cloud access, mentions first-time setup, credential configuration, connection testing, or troubleshooting ClickHouse Cloud connections.

Maintain skills wiki health - check links, naming, cross-references, and coverage

Enables comprehensive Linux system diagnostics using GASP's AI-optimized monitoring output. Actively fetches metrics from hosts and provides intelligent analysis with context-aware interpretation.

Gate 1 validation: API specification quality checks

Gate 2 validation: TypeScript type generation from OpenAPI spec

Gate 3 validation: Implementation quality and type safety

Gate 4a validation: Unit test creation and nock-only enforcement

Gate 4b validation: Integration test creation and no-hardcoded-values enforcement

Gate 5 validation: Test execution and 100% pass rate requirement