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.

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

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.

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.

This skill should be used when implementing dice rolling, creating Roll formulas, sending rolls to chat with toMessage, preparing getRollData, creating custom dice types, or handling roll modifiers like advantage/disadvantage. Covers Roll class, evaluation, and common patterns.

This skill should be used when adding error handling to catch blocks, standardizing error handling across a codebase, or ensuring proper UX with user messages vs technical logs. Covers NotificationOptions, Hooks.onError, and preventing console noise.

This skill should be used when creating or extending ActorSheet/ItemSheet classes, implementing getData or _prepareContext, binding events with activateListeners, handling drag/drop, or migrating from ApplicationV1 to ApplicationV2. Covers both legacy V1 and modern V2 patterns.

**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.

Command-line fuzzy finder for interactive filtering of any list. Use when interactively selecting files, searching command history (CTRL-R), creating selection interfaces in scripts, building interactive menus, or integrating fuzzy search with tools like ripgrep, fd, and git. Triggers on mentions of fzf, fuzzy finder, ** completion, interactive filtering, or shell keybindings CTRL-T/CTRL-R/ALT-C.

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.

Expert guidance for GA4 privacy and compliance including GDPR, CCPA, Consent Mode v2, data deletion, and privacy settings. Use when implementing Consent Mode, ensuring GDPR compliance, handling data deletion requests, configuring consent banners, or implementing privacy-first tracking. Covers consent parameters (ad_user_data, ad_personalization), data retention, IP anonymization, and compliance workflows.

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.

Validate codebase architecture and organization before releases. Use when user asks to 'check architecture', 'validate structure', 'pre-release check', or before versioning.

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'.

This skill provides guidance for implementing multi-agent game coordination systems where a central gamemaster agent orchestrates multiple player agents running in parallel. The gamemaster acts as an

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

Game design decisions and rationale (respawn, portals, progression)

game-design-theory

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.

Guide for game engine development resources including engine source code, plugins, and development guides. Use this skill when researching game engines (Unreal, Unity, Godot, custom engines), engine architecture, or game development frameworks.

game-engines

Narrative RPG game master for collaborative storytelling. Use for tabletop RPG sessions, solo narrative games, or any real-time collaborative fiction requiring scene management, NPC portrayal, and story coherence.

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.

Fixed timestep game loop with interpolation for frame-rate independent physics. Separates physics updates from rendering, prevents spiral of death, and supports hitstop/slow-mo effects.

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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Execute an approved sprint plan with **AILANG as the primary implementation language**. All game logic, state machines, and gameplay code goes in `sim/*.ail` - the Go engine only renders DrawCmd outpu

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.

game-tools-workflows

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.

gaming

Audits prompts and skills against Claude best practices. Finds clarity issues, structural problems, and enhancement opportunities. Provides fixes and grades.

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

Triggered by start-gap-finder.