Borrowing it
Nothing to install: this file belongs to koshimazaki/UE-AUDIO-MCP. 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/koshimazaki/UE-AUDIO-MCP/master/.claude/skills/ue5-metasound-dsp/SKILL.mdgit clone --depth 1 https://github.com/koshimazaki/UE-AUDIO-MCPWrote 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/koshimazaki/ue-audio-mcp/ue5-metasound-dsp)<a href="https://agentmods.dev/skills/koshimazaki/ue-audio-mcp/ue5-metasound-dsp"><img src="https://agentmods.dev/badge/skills/koshimazaki/ue-audio-mcp/ue5-metasound-dsp/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/koshimazaki/ue-audio-mcp/ue5-metasound-dsp"><img src="https://agentmods.dev/badge/skills/koshimazaki/ue-audio-mcp/ue5-metasound-dsp.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 | $0.00054 | $0.02447 |
| Opus 5.5 | $0.00022 | $0.00979 |
| Sonnet 5.5 | $0.00011 | $0.00489 |
| Haiku 4.5 | $0.00005 | $0.00245 |
Grade A, and why
ue5-metasound-dsp 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.
How it starts
The opening of the file, as written. The whole thing — 224 lines — stays where its author put it; the contents beside it link to each section on GitHub.
MetaSounds DSP — Node Graphs & Signal Design
Design MetaSounds audio graphs: choose nodes, wire signal chains, configure DSP parameters, and generate Builder API command sequences.
Data Types
Audio, Trigger, Float, Int32, Bool, Time, String, WaveAsset, UObject, Enum (+ Array variants)
Type rules: Audio-rate cannot connect to Float. Use correct node variant (e.g., Multiply (Audio) vs Multiply (Float)).
Asset Types
| Type | Use | Interface |
|---|---|---|
| Source | Standalone playable asset | UE.Source.OneShot or MetaSound |
| Patch | Reusable subgraph (no play) | Custom |
| Preset | Parameter overrides of existing Source/Patch | Inherits parent |
Interfaces
MetaSound— Standard audio outputUE.Source.OneShot— OnPlay trigger in, OnFinished trigger outUE.Attenuation— Distance input for volume falloffUE.Spatialization— Azimuth/Elevation for 3D positioning
Finding Nodes and Pins
- Look nodes up in the engine-synced catalogue,
src/ue_audio_mcp/knowledge/metasound_catalogue.json, or with thems_search_nodesandms_node_infotools. They give the class name (e.g.UE::Biquad Filter::Audio) and the exact, typed pin names thatconnectexpects. - With the editor running,
list_node_classes(TCP) lists everything the engine has registered, including plugin nodes. - The Builder API is experimental: node classes and pins can change between UE versions, so re-sync the catalogue after an engine upgrade (
scripts/update_catalogue_pins.py). WaveAssetinputs need a real imported sound in the project's Content folder.
Node Categories
Generators
Sine, Saw, Square, Triangle, Noise, LFO, Additive Synth, SuperOscillator, WaveTable, Perlin Noise
Wave Players
Wave Player (mono), Stereo Wave Player, with loop/pitch shift/concatenation
Envelopes
AD Envelope (Audio-rate), AD Envelope (Float), ADSR Envelope, Crossfade, WaveTable Envelope
Filters
Biquad Filter, State Variable Filter, Dynamic Filter, Ladder Filter, One-Pole HPF, One-Pole LPF, Band Splitter, Bitcrusher
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 · +5 lines · -9 tokens per session 7ded2f544396
- 2mo ago First seen · 219 lines · 63 tokens per session scan A 6f3a6102bef9
ue5-metasound-dsp is a skill published in the GitHub repository koshimazaki/UE-AUDIO-MCP (7 stars, last pushed 1mo ago), licensed MIT. It adds 54 tokens to every session and 2,447 once invoked, about $0.0002 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.
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