Yuki001

Yuki001/game-dev-skills

Agent Claude Code

Creates global art direction and per-system art docs from the design docs.

Yuki001/game-dev-skills

Agent Claude Code

Owns the design docs. Turns a rough game idea into a game overview, a systems index, and concise system GDDs.

Yuki001/game-dev-skills

Agent Claude Code

Plans ordered milestone handoff slices in gat/milestone/milestone.md and authors per-milestone brief skeletons, for downstream engineering workflows.

Yuki001/game-dev-skills

Agent Claude Code

Owns narrative docs. Turns game design context into story premise, worldbuilding, characters, quests, dialogue, and narrative content briefs.

Yuki001/game-dev-skills

Settings file Claude Code

Agent settings declaring 7 allowed tools.

Yuki001/game-dev-skills

Skill Claude CodeCodex

Brainstorm a game idea through one-question-at-a-time designer interviews. Produces game.md, systems-index.md, and art-direction.md, or runs as discussion-only.

Yuki001/game-dev-skills

Skill Claude CodeCodex

Design one system within a specific milestone's scope: write the milestone-scoped system GDD, content data, and system art doc, and update the milestone brief's progress. Requires a mandatory milestone argument.

Yuki001/game-dev-skills

Skill Claude CodeCodex

Plan milestone slices from overview + narrative alone (no system GDDs required), create per-milestone directory skeletons and briefs, and write gat/milestone/milestone.md. Runs before per-system design. Stops before technical design, task breakdown, or implementation.

Yuki001/game-dev-skills

Skill Claude CodeCodex

Develop game story and narrative through one-question-at-a-time writer interviews. Produces narrative docs under gat/narrative/ or runs as discussion-only. Use when the user wants story, plot, lore, worldbuilding, characters, quests, dialogue, narrative tone, or authored story content for a GAT game.

Yuki001/game-dev-skills

Skill Claude CodeCodex

Inspect the repo state and show a status panel across all milestones, recommending the earliest actionable next step in the workflow.

Yuki001/game-dev-skills

Skill Claude CodeCodex

Generate procedural 3D models from natural-language requests by writing a constrained buildModel(ctx) module that uses Three.js, bundled builders and helpers, deterministic validation and export scripts, PNG previews, and optional browser visual review. Use when needs to create, revise, export, or visually audit…

Yuki001/game-dev-skills

Skill Claude CodeCodex

READ this skill when implementing or configuring animation-style shaders (Toon/Cel Shaders) — including outlines, rim lighting, toon shading, MatCap, emission, dissolve, hatching, or any stylized rendering effect. Contains preset styles and feature-to-reference mappings for lilToon, Poiyomi, UTS2, RToon, SToon, and…

Yuki001/game-dev-skills

Skill Claude CodeCodex

READ this skill when designing or planning any game system architecture — including combat, skills, AI, UI, multiplayer, narrative, or scene systems. Contains paradigm selection guides (DDD / Data-Driven / Prototype), system-specific design references, and mixing strategies. Works as a domain knowledge plugin…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Specialized in game numerical design, this skill designs first-pass game balance values, diagnoses and tunes existing systems, and evaluates balance proposals by building and running executable models, simulators, parameter sweeps, and evidence checks. Use for combat, progression, economies, items/builds…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Review, critique, compare, improve, or stress-test an existing game concept, GDD, mechanic, puzzle, economy, level, theme, emotional arc, interface, narrative, social feature, prototype, pitch, or playtest result. Use when the user asks what is weak, risky, unclear, unbalanced, contradictory, insufficiently engaging…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Plan, generate, inspect, vision-evaluate, refine, and package images and visual assets for game development through a backend-agnostic production loop. Use for PNG or SVG props, icons, characters, environments, tiles, UI, HUD/gameplay screens, VFX, transparent cutouts, concept or worldbuilding boards, sprite sheets…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Execute image generation, editing, and chroma-key transparent-background workflows with GPT Image 2 / gpt-image-2 through the bundled scripts. Use when GPT Image is the selected backend and a supplied prompt or edit instruction must be executed for text-to-image generation, reference-image editing, multi-reference…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Comprehensive ImageMagick 7 command-line image processing for inspecting, converting, resizing, cropping, compositing, masking, drawing, annotating, color correction, quantization, filtering, morphology, distortion, animation, montage, comparison, metadata, batch automation, and advanced pixel analysis. Use whenever a…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Remove image backgrounds locally with Lucida's bgr CLI and save transparent RGBA PNGs while preserving soft alpha in glass, smoke, glow and VFX, camouflage, text and logos, line art, illustrations, and print designs. Use when a user asks to remove, erase, isolate, cut out, or make the background of an image…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Generate images through OpenRouter's dedicated Image API. Use this skill whenever the user wants to create, render, generate, or save images with OpenRouter, including text-to-image, image-to-image/reference images, choosing OpenRouter image models, listing image models, setting resolution/aspect ratio/quality/output…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Generate and download videos through OpenRouter's dedicated asynchronous Video API. Use this skill whenever the user wants to create, render, generate, poll, resume, or save an OpenRouter video, including text-to-video, first/last-frame image-to-video, reference-to-video, choosing or listing video models, setting…

Yuki001/game-dev-skills

Skill Claude CodeCodex

Extract ordered still-image frames from local video files with FFmpeg, using a fixed FPS, an exact frame count, explicit timestamps, or every source frame; optionally remove a flat chroma-key background and emit timing metadata. Use for video-to-frame conversion, animation frame sampling, contact-sheet inputs, sprite…