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.
curl -O https://raw.githubusercontent.com/Txpple/fvtt-mcp-molten5e/main/.claude/skills/playlist-builder/SKILL.mdgit clone --depth 1 https://github.com/Txpple/fvtt-mcp-molten5eWrote 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.
[](https://agentmods.dev/skills/txpple/fvtt-mcp-molten5e/playlist-builder)<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.
<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>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 | $0.00118 | $0.00918 |
| Sonnet 5 | $0.00047 | $0.00367 |
| Haiku 4.5 | $0.00024 | $0.00184 |
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 10d 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.
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 modulefvtt-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-playlistbuilds the Playlist + one PlaylistSound per path (v14 sound field ispath);update-playlistrenames / 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-assetreturns one;list-assetsshows them). There is no "copy the book playlist" path. - Don't reference audio you don't have. Every
soundPathsentry 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.
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.
- 10d ago First seen · 124 lines · 237 tokens per session scan A e73591e8e3bf
playlist-builder is a skill published in the GitHub repository Txpple/fvtt-mcp-molten5e (0 stars, last pushed yesterday), licensed MIT. It adds 237 tokens to every session and 1,835 once invoked, about $0.0012 per session on Opus 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.
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