Developer Tools & Repos Agent Skills for ChatGPT

The repo front-door for a Flutter/Dart app — the cross-cutting house rules (feature-first layered MVVM, immutable state with a single…

Enforces Flutter runtime performance — const subtrees, minimal rebuild scope via ref.watch(select), lazy ListView/GridView builders and…

Build production-grade Flutter apps with Firebase or custom API backends.

Generate and integrate playable 2D game maps with demand-driven or coherent-foundation terrain Tilemaps, complete building/prop objects…

Use when creating or processing production-oriented 2D game sprites, animation sheets, transparent PNG frames, characters, creatures…

Generate, redraw, inpaint, continue, validate, and deliver explicitly requested game sound effects and ambience with a locally installed…

Use when existing, MiniMax Hailuo, Jimeng, optional local ComfyUI MiniMax H3 video must become a validated 2D Sprite animation.

Enforces Form + GlobalKey<FormState> with TextFormField whose sync validator returns a localized String? (never a hardcoded literal)…

Use when the user wants to infer HTTP contracts and endpoint documentation from a React or TypeScript frontend instead of relying on a…

Connect a frontend application (React, Next.js, Vue, Svelte, etc.) to an Encore.ts backend.

Architect large or state-heavy Langfuse frontend features.

Enables AI agents to create complete web applications with file system operations, code execution, template sandboxes, and live preview…

Curated bundle of essential skills for fullstack web development.

Game analytics skill for event tracking.

Use when generated candidates must become engine-ready files with predictable size, canvas, alpha, anchor, and pivot — "clean these up for…

Architects game mechanics, systems, and logic using domain-specific design patterns and terminal-based development tools.

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

Use when a cross-engine gameplay task needs a Layer 1 foundation for tag taxonomies, query semantics, label sprawl, or enum explosion…

HUD design skill for health bars and minimaps.

Designs engaging gameplay loops, economies, and progression systems, balancing challenge and reward for interactive experiences.

Guide beginners through exploring, comparing, refining, and validating gameplay ideas for digital games, tabletop games, and paper…