game-engine agents

tettethu/VibeGame

Skill Claude CodeCodex

Capture reusable patterns from a finished project and lift them into framework-level priors (contracts, modules, skeletons) that future projects inherit. Run only when the user explicitly requests self-evolution; the orchestrator executes the workflow.

tettethu/VibeGame

Skill Claude CodeCodex

Run VibeGame's standard end-to-end game development workflow with reviewer gates. Use when the user wants to create a game from zero or evolve an existing game across multiple stages.

DRincs-Productions/pixi-vn

Skill Claude CodeCodex

Use when setting up a new or existing project on @drincs/pixi-vn, wiring the main.ts entry point, or calling the top-level Game API (Game.init, Game.start, Game.onEnd, Game.addOnError, Game.onNavigate, Game.clear) — this is the entry point every Pixi'VN project needs before touching canvas, narration, sound, storage…

DRincs-Productions/pixi-vn

Skill Claude CodeCodex

Use when upgrading an existing @drincs/pixi-vn project to a newer version, or when a runtime/type error matches a known breaking change. Covers every breaking change between versions with before/after code.

DRincs-Productions/pixi-vn

Skill Claude CodeCodex

Use when writing or editing Pixi'VN story content — defining labels (scenes) with newLabel, writing dialogue steps, adding player choices with newChoiceOption/newCloseChoiceOption, conditional/branching labels, or wiring up narration.call/jump/continue and Game.start to progress the story.

KilledByAPixel/LittleJS-AI

Plugin Claude Code

Make games and graphics-heavy apps with LittleJS, a fast open-source HTML5 engine. Ask for a game and get a complete playable project in seconds - 2D, Box2D physics, or three.js 3D - ready to run and share.

KilledByAPixel/LittleJS-AI

Instructions file

Instructions for KilledByAPixel/LittleJS-AI: You are a helpful assistant for building playable LittleJS games with Claude.

KilledByAPixel/LittleJS-AI

Skill Claude CodeCodex

Use when a LittleJS game's visuals are geometric/abstract/neon shapes or it has many round entities (orbs, gems, bubbles, asteroids, particles, stars), OR when speeding up a game that calls many drawCircle/drawEllipse/drawPoly/drawRegularPoly per frame. Renders shapes as tinted atlas tiles instead.

KilledByAPixel/LittleJS-AI

Skill Claude CodeCodex

LittleJS game engine (littlejsengine) conventions — REQUIRED before answering, writing, editing, reviewing, or debugging ANY LittleJS code, including one-line questions about a snippet. TRIGGER whenever "LittleJS" appears, or the code uses…

KilledByAPixel/LittleJS-AI

Skill Claude CodeCodex

Scaffold a brand-new, complete playable game project — LittleJS engine included, opens straight from disk in a browser with no server, smallest playable loop written for you. TRIGGER on ANY request to make/create/start/build a game when no other engine or framework is named — "make me a pong game", "make a breakout…

echoo19/hearth

Skill Claude CodeCodex

Give a Hearth game real art and sound — importing and slicing spritesheets, animations, procedural sprites and sounds, autonomous CC0 asset sourcing (Kenney, itch.io, OpenGameArt, Freesound, Google Fonts) with licensing rules, and pixel-art discipline (never stretch; read the art before using it). Use when the game…

echoo19/hearth

Skill Claude CodeCodex

Structure a Hearth game's world — scenes, entities, components, tilemaps and autotiling (surfaces must connect), collider/sprite alignment, prefabs, animation state machines, and input bindings. Use when creating or arranging what exists in a Hearth game (levels, objects, hierarchies); behavior scripts are…

echoo19/hearth

Skill Claude CodeCodex

Make a Hearth game feel good, not just run — the juice stack (hit-stop, screen shake, flash, particle bursts, layered sound), tween easing, camera effects, anticipation/recovery animation idioms, game-UX conventions (menus, pause, onboarding, difficulty, save etiquette), effect-asserting playtests, and the quality bar…

SummerEngine/summer-engine-agent

Plugin Claude Code

Agent tooling for Summer Engine: game-dev skills, lifecycle hooks, and a 58-tool MCP bridge to the local desktop app.

SummerEngine/summer-engine-agent

MCP server Claude CodeCodexCursor +2

Local Summer CLI and MCP server for Summer Engine. Install and run the engine, connect Claude Code, Cursor, Codex, Gemini, and other agents, and build real games with bundled skills, hooks, and plugins. Runs locally from the summer-engine npm package.

SummerEngine/summer-engine-agent

Instructions file CodexOpenCode

Instructions for SummerEngine/summer-engine-agent, covering summer — agent context, what you're working with, critical rules, skill priority and mcp tool palette (project-matched local editor).

SummerEngine/summer-engine-agent

Instructions file

Instructions for SummerEngine/summer-engine-agent: This file primes Claude Code on Summer when it loads from this repo. The full agent workflow lives in skills/workflow/using-summer/SKILL.md; activate that skill on every fresh session.

SummerEngine/summer-engine-agent

Instructions file Gemini CLI

Instructions for SummerEngine/summer-engine-agent, covering summer — context primer for gemini, what summer engine is, how to behave, skill priority and type-system traps.

SummerEngine/summer-engine-agent

Command

You are capturing what we just learned in this game-development session into Summer Engine's skill library, so the next agent (and every Summer user) gets to start where we ended.

SummerEngine/summer-engine-agent

Command

You are the Summer Engine command router. The user invoked /summer because they want game-development help inside Summer Engine, not generic software advice.

SummerEngine/summer-engine-agent

Hook

Runs when a session starts on startup, clear and compact, executing run-hook.cmd. From SummerEngine/summer-engine-agent.

SummerEngine/summer-engine-agent

Hook

Runs before the agent uses a tool for Bash(git commit*) tool calls, executing run-hook.cmd. From SummerEngine/summer-engine-agent.

SummerEngine/summer-engine-agent

Skill Claude CodeCodex

Use when generating animated 2D character sprites laid out as a sprite sheet (grid of frames) — walk cycle, attack frames, idle bob, death sequence. Wires into AnimatedSprite2D / SpriteFrames. Trigger on "sprite sheet", "walk cycle", "attack frames", "animated sprite", "frame-by-frame animation", "2D character…

SummerEngine/summer-engine-agent

Skill Claude CodeCodex

Use when the user wants to design an enemy, NPC, boss, companion, civilian, or wave-spawned mob's behavior. Walks perception, personality knobs, intent layer, action state machine, telegraphs, defeat handling, and group emergence — outputs a state-machine GDScript stub plus the recommended node tree. Trigger on…