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foundryvtt-dev

v1.0.0

Expert guidance for FoundryVTT v13 system and module development — ApplicationV2 migration, sheets, forms, actions, tabs, drag-drop, hooks, data model, testing, and i18n. Includes a proactive code reviewer for deprecated patterns and common mistakes. Not affiliated with Foundry Gaming LLC.

Claude Code2 Skills

By Tim White2 GitHub starsUpdated 4 months ago

Directory evidence

Runtimes
Claude Code
Parsed components
2 skill or MCP entries
Source updated
May 23, 2026
Manifest status
Canonical path parsed

The directory validates manifest shape and source location. It does not execute the plugin or provide a security endorsement. Review the indexing methodology →

Install foundryvtt-dev for Claude Code

Installs for the current user
claude plugin marketplace add IchenDEV/agent-plugin-mkt
claude plugin marketplace update agent-plugin-marketplace
claude plugin install foundryvtt-dev@agent-plugin-marketplace

Paste and run these commands in a terminal with Claude Code. They add and refresh the PluginsMP catalog, then install this plugin.

The installer fetches third-party code from the source repository shown on this page. This directory validates manifest structure and source location, but does not perform a security audit; review the manifest, components, and source before installing.

Get the source manually
git clone https://github.com/cyface/foundryvtt-dev-claude-plugin

Clone the source repository, then follow its setup instructions to add the plugin to a compatible client. The repository root is the plugin root.

Plugin files

foundryvtt-dev/
├── .claude-plugin/plugin.json
├── skills/appv2/SKILL.md
└── skills/foundryvtt-system/SKILL.md

Included Skills2

appv2skills/appv2/SKILL.md

This skill should be used when the user asks about "ApplicationV2", "ActorSheetV2", "ItemSheetV2", "DocumentSheetV2", "DialogV2", "DEFAULT_OPTIONS", "PARTS", "data-action", "_prepareContext", "HandlebarsApplicationMixin", "sheet registration", "form handling in Foundry", "tabs in Foundry sheets", "drag and drop in Foundry", "V12 to V13 migration", "migrate to V13", "convert to ApplicationV2", "ProseMirror editor", "submitOnChange", "tag form", "actions system", "editImage", "_processFormData", "_processSubmitData", "inline item editing", "CSS theming in Foundry", "theme variables", "CSS layers", or mentions FoundryVTT V13 application classes, sheet patterns, or migration from V12 to V13.

foundryvtt-systemskills/foundryvtt-system/SKILL.md

This skill should be used when the user asks about "FoundryVTT system development", "FoundryVTT module", "Foundry hooks", "data model", "template.json", "Actor class", "Item class", "Roll class", "compendium packs", "game settings", "game.i18n", "localize", "i18n", "testing FoundryVTT", "Vitest with Foundry", "mocking Foundry", "system.json", "FoundryVTT project structure", "Foundry documents", "embedded documents", "settings registration", "Hooks.on", "Hooks.once", "game.settings.register", "game.actors", "game.items", "CONFIG object", "FoundryVTT canvas", "FoundryVTT API", "SCSS in Foundry", "language files", "translation files", "pack management", "LevelDB packs", "compendium JSON", or mentions building a game system or module for FoundryVTT.

Plugin manifests1

.claude-plugin/plugin.json
{
  "name": "foundryvtt-dev",
  "version": "1.0.0",
  "description": "Expert guidance for FoundryVTT v13 system and module development — ApplicationV2 migration, sheets, forms, actions, tabs, drag-drop, hooks, data model, testing, and i18n. Includes a proactive code reviewer for deprecated patterns and common mistakes. Not affiliated with Foundry Gaming LLC.",
  "author": {
    "name": "Tim White",
    "email": "[email protected]"
  },
  "homepage": "https://github.com/cyface/foundryvtt-dev-claude-plugin",
  "keywords": [
    "foundryvtt",
    "foundry",
    "vtt",
    "applicationv2",
    "game-system",
    "tabletop",
    "rpg"
  ]
}

For maintainers

If you maintain this plugin, link to this source-backed listing from your README so users can review its manifest and indexed components.

[foundryvtt-dev on Agent Plugins Marketplace](https://pluginsmp.com/plugins/foundryvtt-dev)