New: 98,000+ skills indexed from GitHub repos with 100+ stars · every skill safety-checkedBrowse top skillsTop skills
Esc to closeBrowse all skills
Submit a skillBrowse skills
Submit a skillBrowse skills

Agent skill

Build Game Inventory

by nirholas in nirholas/three.ws

Build or repair game inventory, loot, equipment, tooltips, drag-and-drop, persistence, and progression systems.

Apache-2.0Auto-check passedGame Development

Install Build Game Inventory

skills CLI
$ npx skills add nirholas/three.ws --skill build-game-inventory -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install nirholas/three.ws build-game-inventory --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/nirholas/three.ws.git skills-src && mkdir -p .claude/skills && cp -r skills-src/third_party/designcode-agent-skills/agent-skills/game-development/build-game-inventory .claude/skills/build-game-inventory && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
build-game-inventory
GitHub stars
229
Used in
1 other repo
Token cost
~418 tokens
SKILL.md length
184 words
Files
2
Skills in repo
92
Repo updated
First seen
Licence
Apache-2.0

At a glance

Build or repair game inventory, loot, equipment, tooltips, drag-and-drop, persistence, and progression systems.

  • Works in 4 steps: Validate source ownership and… → Compute the entire next… → Commit once or reject without changing… → …
  • Equipment slots
  • SKILL.md covers Define the item contract, Implement transfers as…, Build usable UI and Test loss boundaries
  • Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md

What it does

Build Game Inventory is an agent skill from nirholas/three.ws. Build or repair game inventory, loot, equipment, tooltips, drag-and-drop, persistence, and progression systems. Use for item schemas, pickup flows, stack rules, equipment slots, atomic swaps, save migration, and no-loss regression testing.

Its SKILL.md is about 420 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `agents/openai.yaml`).

It sits in Game Development, covering QA and bug reports and Game development. The repository describes itself as: Open-source platform for 3D AI agents. Turn text or a photo into a rigged, animated GLB avatar, give it an LLM brain, memory and a wallet, and embed it anywhere with one web… The licence is Apache-2.0.

When your agent uses it

  • Equipment slots
  • No-loss regression testing

Example prompts

  • “/build-game-inventory”

Workflow steps

4 steps, taken from the first numbered list in SKILL.md.

  1. Validate source ownership and destination legality.
  2. Compute the entire next inventory/equipment state.
  3. Commit once or reject without changing either side.
  4. Persist only after the committed state is valid.

What it can do on your machine

Read from SKILL.md and the folder at commit 66624fb. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    No scripts in the folder and no shell commands in SKILL.md.

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Build Game Inventory loads about 418 tokens when it runs. Until then it costs about 65 tokens; SKILL.md has 184 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~65
When it runs · the whole SKILL.md, loaded when a task matches
~418

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from nirholas/three.ws at commit 66624fb, republished under its Apache-2.0 licence (© nirholas). 184 words, ~418 tokens.

Download SKILL.mdSave it as .claude/skills/build-game-inventory/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.
name
build-game-inventory
description
Build or repair game inventory, loot, equipment, tooltips, drag-and-drop, persistence, and progression systems. Use for item schemas, pickup flows, stack rules, equipment slots, atomic swaps, save migration, and no-loss regression testing.

Build Game Inventory

Use one typed, serializable item source of truth and make every transfer atomic.

Define the item contract

Model stable IDs, item definitions, ownership, stack limits, equipment compatibility, effects, rarity, presentation data, and migration version separately. Runtime UI must reference definitions by ID rather than duplicate stats or descriptions.

Implement transfers as transactions

For pickup, equip, unequip, swap, drag/drop, consume, and sell:

  1. Validate source ownership and destination legality.
  2. Compute the entire next inventory/equipment state.
  3. Commit once or reject without changing either side.
  4. Persist only after the committed state is valid.

Never remove an item before confirming a legal destination. Preserve item identity across a swap and prevent duplicate effect registration.

Build usable UI

Expose slot compatibility, equipped state, quantity, tooltip facts, and failure feedback. Support keyboard and touch alternatives to drag-only interactions. Keep focus behavior, dialogs, and tooltips accessible.

Test loss boundaries

Cover invalid destinations, full inventory, duplicate pickup, equip swap, mid-action swap, save/load, schema migration, reset/new game, tooltip updates, and repeated dispatch. Validate that total owned item identity is conserved except for explicit consumption or reward rules.

© nirholas, Apache-2.0. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 1 other file in third_party/designcode-agent-skills/agent-skills/game-development/build-game-inventory of nirholas/three.ws.

  • SKILL.md
  • agents/openai.yaml

Open the folder on GitHubat commit 66624fb

Used in 1 other repository

We found 1 copy of this SKILL.md (exact, near-identical or edited) in other folders, from 1 other GitHub owner. This page covers the copy in nirholas/three.ws, which our catalogue first saw on October 7, 2026.

Compare with similar skills

Build Game Inventory next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Build Game Inventory compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Build Game Inventory this skillnirholas/three.ws2291 repos~418Automated safety check: PassApache-2.0
Game Boy ROM Playthrough Drivertrekawek/coffee-gb1.2k—~1.3kAutomated safety check: PassMIT
Evidence-Based Game QAzenstory-ai/novel-to-game841—~389Automated safety check: PassMIT
Tiny Game Controllerminigdx/tiny164—~874Automated safety check: PassMIT
KenshiCoop Save Orchestrationnhoral/KenshiCoop285—~2.4kAutomated safety check: PassAGPL-3.0
ScreenshotRandallLiuXin/GodotMaker5501 repos~1.5kAutomated safety check: PassCustom licence

Similar skills

  • Game Boy ROM Playthrough Driver

    trekawek/coffee-gb

    Plays an authorized Game Boy or Game Boy Color ROM in one persistent headless Coffee GB session, inspecting frames and keeping an action trace for replay or tests.

    1.2k GitHub stars~1.3k tokensUpdated 9 days ago
    Game DevelopmentAuto-check passed

  • Evidence-Based Game QA

    zenstory-ai/novel-to-game

    Verifies a game build on its target runtime with real run evidence for launch, rendering, input, core loop, outcome and restart, and records limitations honestly.

    841 GitHub stars~389 tokensUpdated 7 days ago
    Game DevelopmentAuto-check passed

  • Tiny Game Controller

    minigdx/tiny

    Controls a running Tiny game engine over its local debug HTTP server, sending key presses, releases and taps so the agent can play or test the game.

    164 GitHub stars~874 tokensUpdated 4 mo ago
    Game DevelopmentAuto-check passed

  • KenshiCoop Save Orchestration

    nhoral/KenshiCoop

    Picks the right save file and script for a KenshiCoop debugging or validation session, and protects version-controlled fixtures from being overwritten.

    285 GitHub stars~2.4k tokensUpdated 2 mo ago
    Game DevelopmentAuto-check passed

  • Screenshot

    RandallLiuXin/GodotMaker

    Capture gameplay screenshots using godot-e2e for visual verification.

    550 GitHub starsUsed in 1 repo~1.5k tokens
    Game DevelopmentAuto-check passed

  • Playtest Report

    Donchitos/Claude-Code-Game-Studios

    Creates a blank playtest report template or converts raw playtest notes into structured findings sorted into design, balance, bug and polish items.

    26k GitHub stars~1.7k tokensUpdated 2 days ago
    Game DevelopmentAuto-check passed

More from nirholas/three.ws

All 92 skills in this repo

  • Add Shader Cursor Trail

    nirholas/three.ws

    Add the Shaders WebGPU mouse effect used for the Tidal Commons hero: a white twinkling halftone cursor trail driven by ChromaFlow, masked through a DotGrid, finished with chromatic ripples and film…

    229 GitHub starsUsed in 1 repo~760 tokens
    Auto-check passed

  • Publish Project To GitHub

    nirholas/three.ws

    Package a finished local project into an intentional GitHub repository, create a strong README and visual preview, push it safely, configure a public GitHub Pages URL when the project is compatible…

    229 GitHub starsUsed in 1 repo~2.2k tokens
    Auto-check: notes

  • Audit Reference Originality

    nirholas/three.ws

    Audit a website or digital experience against its supplied source references for originality and plagiarism risk.

    229 GitHub starsUsed in 1 repo~1.8k tokens
    Auto-check passed

  • Build Daily Inspiration Sites

    nirholas/three.ws

    Turn a completed daily UI inspiration capture into exactly five original landing-page builds, one per separate Codex task, using Sites.

    229 GitHub starsUsed in 1 repo~1.9k tokens
    Auto-check passed

  • Write Like Meng On X

    nirholas/three.ws

    Write, rewrite, review, or continuously refine X/Twitter posts in Meng To's current voice using his deduplicated authored-post corpus, personal and product context, shared resources, and Content…

    229 GitHub starsUsed in 1 repo~2k tokens
    Auto-check passed

  • Browser Video Recording

    nirholas/three.ws

    Create polished 60 fps 4:3 4K browser screen-recording style videos from Codex in-app browser captures, with browser-only crop, natural macOS cursor styling, deliberate click choreography…

    229 GitHub starsUsed in 1 repo~1.5k tokens
    Auto-check passed

Categories

Questions about Build Game Inventory

What does Build Game Inventory do?

Build or repair game inventory, loot, equipment, tooltips, drag-and-drop, persistence, and progression systems. ws. Build or repair game inventory, loot, equipment, tooltips, drag-and-drop, persistence, and progression systems.

When should I use Build Game Inventory?

Build Game Inventory fits situations like: equipment slots; no-loss regression testing.

How do I install Build Game Inventory in Claude Code?

Run `npx skills add nirholas/three.ws --skill build-game-inventory -a claude-code`. Or copy the skill folder (third_party/designcode-agent-skills/agent-skills/game-development/build-game-inventory in nirholas/three.ws) into .claude/skills/build-game-inventory in your project. Claude Code loads it when a task matches its description.

How do I install Build Game Inventory in Codex?

Run `npx skills add nirholas/three.ws --skill build-game-inventory -a codex`. Or copy the skill folder (third_party/designcode-agent-skills/agent-skills/game-development/build-game-inventory in nirholas/three.ws) into .agents/skills/build-game-inventory in your project. Codex loads it when a task matches its description.

Can I use Build Game Inventory in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add nirholas/three.ws --skill build-game-inventory -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/build-game-inventory, .gemini/skills/build-game-inventory, .github/skills/build-game-inventory and .opencode/skills/build-game-inventory in your project.

What does Build Game Inventory need to run?

SKILL.md names no scripts, command-line tools or credentials: Build Game Inventory is instructions for the agent only.

Does Build Game Inventory access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Build Game Inventory safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Build Game Inventory use?

Build Game Inventory is published under the Apache-2.0 licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Build Game Inventory use?

About 418 tokens (SKILL.md is roughly 1.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Build Game Inventory?

Skills that share tags, products or a category with Build Game Inventory: Game Boy ROM Playthrough Driver (trekawek/coffee-gb, 1.2k stars), Evidence-Based Game QA (zenstory-ai/novel-to-game, 841 stars), Tiny Game Controller (minigdx/tiny, 164 stars) and KenshiCoop Save Orchestration (nhoral/KenshiCoop, 285 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Build Game Inventory?

nirholas (a GitHub user) maintains it in nirholas/three.ws, which has 229 GitHub stars. The repository holds 92 skills in this directory. The repository was last updated on October 10, 2026.

Source: nirholas/three.ws on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.