How do I install the Foundry Vtt System Dev Claude Code skill?

Install via the ClaudSkills desktop app (one click) or copy SKILL.md from the source repository to ~/.claude/skills/foundry-vtt-system-dev/SKILL.md and restart Claude Code. Both flows are detailed at https://claudskills.com/install/.

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.

ClaudSkills / General / general-misc

Foundry Vtt System Dev

Category: General · Sub-category: general-misc · Last updated: 2026-05-08

type:generator

Covers building, extending, and maintaining Foundry VTT game systems for v13+. This skill applies when scaffolding a new system, defining Actor/Item types with TypeDataModel, customizing dice mechanics, implementing combat & initiative, building character sheets, handling system data migration, or configuring template.json. Triggers on: "Foundry system", "FVTT system", "system.json", "template.json", "foundryvtt system", "Actor subclass", "Item subclass", "custom dice", "DiceTerm", "system development", "game system", "RPG system", "statusEffects", "hotbarDrop", "custom enricher", "JournalEntryPage", "TokenDocument", or any task involving Foundry VTT system development.

From the source SKILL.md

Build game systems for Foundry Virtual Tabletop (v13+). Systems define the core rules — Actor/Item types, dice mechanics, combat, character sheets — while modules extend them. This skill covers the full system lifecycle from manifest to publication.

What this skill does

Foundry Vtt System Dev is a community-contributed Claude Code skill in the general-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/foundry-vtt-system-dev/ and loads when your prompt matches the skill's trigger.

Who uses this skill

The Foundry Vtt System Dev skill is built for Claude Code users and developers across all disciplines looking for general-purpose AI assistance. It is part of the open ClaudSkills registry, a community-curated catalog of 56,000+ capabilities you can install for Claude Code — the Claude CLI agent.

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/foundry-vtt-system-dev
curl -L https://claudskills.com/skills/foundry-vtt-system-dev/SKILL.md \
  -o ~/.claude/skills/foundry-vtt-system-dev/SKILL.md

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

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

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

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

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