What is physical-item-builder?

A skill for creating Dungeons & Dragons 5th Edition weapons, armor, potions, loot, and other physical items in Foundry, a virtual tabletop for running games.

Adding standard or custom gear, treasure, and equipment to Foundry campaigns.

It helps turn item descriptions into correctly structured Foundry items while following the campaign's edition and compendium rules.

How Txpple/fvtt-mcp-molten5e configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Txpple/fvtt-mcp-molten5e. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/Txpple/fvtt-mcp-molten5e/main/.claude/skills/physical-item-builder/SKILL.md

Clone the repo

git clone --depth 1 https://github.com/Txpple/fvtt-mcp-molten5e

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/skills/txpple/fvtt-mcp-molten5e/physical-item-builder/github.svg)](https://agentmods.dev/skills/txpple/fvtt-mcp-molten5e/physical-item-builder)

Your own site

<a href="https://agentmods.dev/skills/txpple/fvtt-mcp-molten5e/physical-item-builder"><img src="https://agentmods.dev/badge/skills/txpple/fvtt-mcp-molten5e/physical-item-builder/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/skills/txpple/fvtt-mcp-molten5e/physical-item-builder"><img src="https://agentmods.dev/badge/skills/txpple/fvtt-mcp-molten5e/physical-item-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 259 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 4,778 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00259	$0.04778
Opus 5.5	$0.00104	$0.01911
Sonnet 5.5	$0.00052	$0.00956
Haiku 4.5	$0.00026	$0.00478

Measured 1mo ago against content hash dad1becf7a3a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

physical-item-builder scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.claude/skills/physical-item-builder/SKILL.md · 230 lines

How it starts

The opening of the file, as written. The whole thing — 230 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Physical-item builder

A judgment layer for putting D&D 5e gear into Foundry. It turns an item description — a DMG entry, a stat-block "Equipment" line, or "give the boss a flaming greatsword" — into correctly-shaped, art- bearing, edition-correct Foundry items. It adds NO new mechanics; the tools hold the field shapes.

Authoring policy — READ FIRST

Follow the shared project authoring policy: read _shared/authoring-policy.md (.claude/skills/_shared/authoring-policy.md) — 2024 by default · compendium-FIRST (copy the real PHB/DMG item with import-item, even for plain gear; don't author) · never the SRD · custom = copy a base → modify → rename · can't find a 2024 match → STOP and ASK (never fall back to 2014/SRD, never invent a rarity/price/damage die) · authoring, not play. The item-specific shaping rules are in "House rules for shaping items" below.

Tools: import-item (copy from a compendium — the default path), search-compendium-items (faceted discovery by rarity / subtype / magical — the default way to find gear), search-compendium (broad name lookup) / get-compendium-entry (confirm the entry; you copy by the hit's pack + id), add-item (author from scratch — homebrew last resort only), update-actor (actor currency/coins), update-actor-item / manage-activity / manage-effect (modify a copied base into a custom item), get-actor / get-actor-entity (read back).

Target: actor inventory vs world library

Pass actorIdentifier to put the item on an NPC/PC (its inventory).
Omit it (optionally pass folder) to create a reusable world Item in the sidebar — for a shared treasure library or loot handed out later.

Step 0 — Find it in the compendium (the default path)

Discover the item with search-compendium-items — faceted by documentType (gear|weapon|armor|consumable), rarity, itemType (subtype: wondrous / potion / ring / wand / …), magical, and name. It searches the premium books ONLY (never the dnd5e.* SRD, design.md §2.3) and ranks them first, so you don't reason about pack ids. (For a quick exact-name lookup, search-compendium by name also works.) Confirm a hit with get-compendium-entry if you need the full entry, then copy it with import-item (packId = the hit's pack, itemId = its id, plus actorIdentifier or folder). On-copy you can name-rename, set quantity, equipped, identified, or nest in a container. Done — it has the right stats and art.

Read the full file on GitHub · 230 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

1mo ago Changed · +24 lines dad1becf7a3a
2mo ago First seen · 206 lines · 259 tokens per session scan A 88b58246fbe4

Subscribe to this mod's changes

physical-item-builder is a skill published in the GitHub repository Txpple/fvtt-mcp-molten5e (0 stars, last pushed 1mo ago), licensed MIT. It adds 259 tokens to every session and 4,778 once invoked, about $0.0010 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

Game development

physical-item-builder next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
physical-item-builderTxpple/fvtt-mcp-molten5e	Skill	0	1mo ago	MIT	A	259	Claude Code
playtest-reportDonchitos/Claude-Code-Game-Studios	Skill	36k	19d ago	MIT	A	20	Claude Code
godot-signals-groupsgamedev-skills/awesome-gamedev-agent-skills	Skill	7.4k	10d ago	Apache-2.0	A	95	Claude Code
texture-workflowarjun988/blender-skills	Skill	2.0k	yesterday	MIT	A	41	Claude Code
scenario-unreal-gameplayscenario-labs/skills	Skill	3.5k	today	MIT	A	121	Claude Code
motionOpenDCAI/GameFactory-3A	Skill	1.0k	9d ago	Apache-2.0	A	0	Claude Code, Codex
unity-addressablesBesty0728/Unity-Skills	Skill	1.9k	today	MIT	A	25	Claude Code, Codex

fvtt-mcp-molten5e: Skill for Claude Code