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/soundscape-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/soundscape-builder)<a href="https://agentmods.dev/skills/txpple/fvtt-mcp-molten5e/soundscape-builder"><img src="https://agentmods.dev/badge/skills/txpple/fvtt-mcp-molten5e/soundscape-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/soundscape-builder"><img src="https://agentmods.dev/badge/skills/txpple/fvtt-mcp-molten5e/soundscape-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 | $0.06313 |
| Opus 5 | $0.00118 | $0.03157 |
| Sonnet 5 | $0.00047 | $0.01263 |
| Haiku 4.5 | $0.00024 | $0.00631 |
Grade A, and why
soundscape-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 9d 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 — 363 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Soundscape builder
The judgment layer over configure-soundscape — house module #6, fvtt-mod-soundscape. The
module fills a hole core Foundry has no shape for: AmbientSound placeables are positional single-file
loops and Playlists have no concept of silence with variation, so neither can do "a crow, then
quiet, then a distant dog." A sound set is a pool of files plus a play style; a scene carries
several, stacked and independent.
Per design.md §2.1: the tool owns correctness — the flag schema, the clamps, set resolution, the
KEEP+WARN 404 check. This skill owns the judgment — what a place should sound like, how many
layers before it turns to mud, the timing, the mix, and the day/night gates. Read
_shared/authoring-policy.md; the audio clarification from
playlist-builder applies here too — audio has no compendium, so this is asset-driven work.
First: is this even Soundscape's job?
Three different audio systems, three owners. Getting this wrong is the most common failure.
| The user wants | Owner | Why |
|---|---|---|
| Music — a theme, a track, a boss cue, exploration music, a soundboard | playlist-builder |
Playlists stay the music system. Soundscape's design.md lists playlist integration as an explicit non-goal — it never touches them. |
| Ambience: a bed + random one-shots, "make it sound like a place" | this skill | Scene-global pools with randomized silence. Nothing else does it. |
| A sound coming from one spot on the map — that waterfall, this hearth, the door at the end of the hall | create-sounds (AmbientSound placeable) |
Soundscape sets are scene-global by design ("no positional interval sounds" — non-goal). A point emitter with a radius is a placeable. |
They compose: a crypt can have a Soundscape bed, a positional AmbientSound at the fountain, and a Playlist that starts when the fight does. Build each with its own owner.
Step 0 — Look at the scene before you pick a single sound
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.
- 9d ago First seen · 363 lines · 237 tokens per session scan A 0ad5e7129f6a
soundscape-builder is a skill published in the GitHub repository Txpple/fvtt-mcp-molten5e (0 stars, last pushed today), licensed MIT. It adds 237 tokens to every session and 6,313 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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