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ClaudSkills / Product / design-system-ui

Debuff

Category: Product  ·  Sub-category: design-system-ui  ·  Last updated:
Use when the user wants to make a 2D game that runs in the browser (a platformer, top-down adventure, arcade game, pixel-art game, game jam entry or quick prototype), or is working on a project that depends on @debuffjp/core. Starts a playable game in about a minute with debuff, then lets the agent play it, see it, tune it and test it instead of guessing from code.
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From the source SKILL.md

debuff is an open-source TypeScript toolkit for 2D browser games. It handles the game loop, input (keyboard, touch, gamepad), crisp pixel rendering, sound, Tiled and LDtk levels, testing and the web build. The debuff MCP server lets you run the game and look at it, so you can check your work against real frames and state.

What this skill does

Debuff is a community-contributed Claude Code skill in the design-system-ui sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/debuff/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when the user wants to make a 2D game that runs in the browser (a platformer, top-down adventure, arcade game, pixel-art game, game jam entry or quick prototype), or is working on a project that depends on @debuffjp/core. Starts a playable game in about a minute with debuff, then lets the agent play it, see it, tune it and test it instead of guessing from code.

Who uses this skill

The Debuff Claude Code skill is built for product managers, product designers, and cross-functional teams planning, shipping, and measuring product features. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 211,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/debuff
curl -L https://claudskills.com/skills/debuff/SKILL.md \
  -o ~/.claude/skills/debuff/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/debuff/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/debuff/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\debuff\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Telegram

📱 Install from your phone or desktop Telegram

Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.

See pricing → Download desktop app

Frequently asked questions

How do I install the Debuff Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/debuff/SKILL.md and restart Claude Code. Both flows are detailed at claudskills.com/install/.
What does the Debuff skill do?
Use when the user wants to make a 2D game that runs in the browser (a platformer, top-down adventure, arcade game, pixel-art game, game jam entry or quick prototype), or is working on a project that depends on @debuffjp/core. Starts a playable game in about a minute with debuff, then lets the agent play it, see it, tune it and test it instead of guessing from code.
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Debuff skill?
Use Debuff when your Claude Code task falls under the Product category — specifically in the design system ui area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Debuff" or describe the task and let Claude pick). Browse related skills at /category/product/.
What is a Claude Code skill and how does the Debuff skill fit in?
A Claude Code skill is a SKILL.md file that lives under ~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Debuff is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Product category. Learn more at /learn/what-is-a-claude-skill/.

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
debuffjp. (2026). Debuff [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/debuff/
BibTeX
@misc{debuff-2026,
  author    = {debuffjp},
  title     = {Debuff [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/debuff/}
}

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Grade A · scanned 2026-10-25 — free static scan against the OWASP Agentic Skills Top 10.

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Part of ClaudSkills — the open registry for Claude Skills & Claude Code Skills.  ·  What's New  ·  Install guide  ·  About  ·  llms.txt

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