What is playlist-builder?

A skill for creating D&D 5e playlists in Foundry, a virtual tabletop used to run role-playing games online. It covers music, long whole-track ambience, combat tracks, exploration sets, and sound-effect playlists.

Use it to design tavern, forest, dungeon, storm, combat, boss, or exploration playlists and one-shot soundboards.

It helps separate playlists from other Foundry audio systems, such as random sound effects or sounds placed at a map location.

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/playlist-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/playlist-builder/github.svg)](https://agentmods.dev/skills/txpple/fvtt-mcp-molten5e/playlist-builder)

Your own site

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

Per session 237 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 1,835 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	$0.00237	$0.01835
Opus 5.5	$0.00095	$0.00734
Sonnet 5.5	$0.00047	$0.00367
Haiku 4.5	$0.00024	$0.00184

Measured 2mo ago against content hash e73591e8e3bf, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

playlist-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 2mo 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/playlist-builder/SKILL.md · 124 lines

How it starts

The opening of the file, as written. The whole thing — 124 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Playlist builder

The judgment + curation layer for audio (design.md §5) — the ambience and music that set a scene's mood: a crackling tavern, a howling blizzard, a boss fight, a soundboard of one-shot effects. As with every authoring skill: you decide; the tool does.

First: Playlist, Soundscape, or a placeable?

Three audio systems live side by side. Playlists own music and whole tracks; the other two are someone else's job:

Randomized one-shots with silence between them (a crow, quiet, a distant dog), or a crossfaded ambient bed layered on one scene → soundscape-builder (house module fvtt-mod-soundscape). Playlists have no concept of silence-with-variation, so a "soundscape" in that sense is not a playlist. Soundscape's design.md makes playlist integration an explicit non-goal — the two systems never touch, and a scene happily runs both.
A sound coming from one SPOT on the map (that waterfall, this hearth) → an AmbientSound placeable via create-sounds.

A long looping ambience track (a 10-minute Tabletop Audio bed) is still a playlist — that's this skill.

The line that matters — yours vs the tool's

You (this skill) decide the audio — which tracks belong together, the playback mode, the volume, whether it loops. That curation IS the job.
The tool only STRUCTURES — create-playlist builds the Playlist + one PlaylistSound per path (v14 sound field is path); update-playlist renames / re-modes / sets crossfade. Neither invents audio.

Authoring policy — what compendium-first means HERE

Read _shared/authoring-policy.md. The clarification for audio:

Audio has NO premium-book compendium — so compendium-first is N/A: playlists are asset-driven, like scenes. Every track is an uploaded sound file referenced by its Data-relative path (upload-asset returns one; list-assets shows them). There is no "copy the book playlist" path.
Don't reference audio you don't have. Every soundPaths entry must point at a real uploaded file. If the user has no audio for what they want, say so and offer to upload files — don't invent paths.

Read the full file on GitHub · 124 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.

2mo ago First seen · 124 lines · 237 tokens per session scan A e73591e8e3bf

Subscribe to this mod's changes

playlist-builder is a skill published in the GitHub repository Txpple/fvtt-mcp-molten5e (0 stars, last pushed 1mo ago), licensed MIT. It adds 237 tokens to every session and 1,835 once invoked, about $0.0009 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.

Creative and media Game development

playlist-builder next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
playlist-builderTxpple/fvtt-mcp-molten5e	Skill	0	1mo ago	MIT	A	237	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