Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx agentmods add skills/vchelaru/flatredball2/audionpx skills add vchelaru/FlatRedBall2 --skill audiogit clone --depth 1 https://github.com/vchelaru/FlatRedBall2Wrote 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/vchelaru/flatredball2/audio)<a href="https://agentmods.dev/skills/vchelaru/flatredball2/audio"><img src="https://agentmods.dev/badge/skills/vchelaru/flatredball2/audio.svg" alt="Measured on agentmods" 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 | $0.00036 | $0.01472 |
| Opus 5 | $0.00018 | $0.00736 |
| Sonnet 5 | $0.00007 | $0.00294 |
| Haiku 4.5 | $0.00004 | $0.00147 |
Grade A, and why
audio 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 yesterday.
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 — 116 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Audio in FlatRedBall2
Access
Engine.Audio // AudioManager instance on FlatRedBallService
Loading Audio
Two paths. In the Common/Desktop template layout, prefer the direct path — it matches how every other raw asset (png, tmx, achx) is handled, with audio files living alongside them in Common/Content/. Reach for MGCB only when a format limit forces it (MP3).
Direct path — load the raw file (default for OGG/WAV)
Drop the file in Common/Content/ (e.g. Common/Content/Audio/song.ogg); it is linked into the Desktop output's Content/ automatically, no .mgcb entry needed. Load by full path with extension.
Song (music) — OGG only. Song.FromUri accepts only OGG Vorbis on DesktopGL; MP3 fails at runtime (NVorbis backend).
var song = Song.FromUri("song", new Uri(Path.GetFullPath("Content/Audio/song.ogg")));
SoundEffect — WAV only. SoundEffect.FromStream accepts only PCM WAV. OGG/MP3 effects need the MGCB path below.
using var stream = File.OpenRead("Content/Audio/hit.wav");
var sfx = SoundEffect.FromStream(stream);
Engine.Content.Track(sfx); // disposes on screen transition
Usings: System.IO, Microsoft.Xna.Framework.Audio, Microsoft.Xna.Framework.Media.
MGCB pipeline — for MP3 or compressed formats
Needed only when the direct path's format limits bite. The .mgcb lives in the .Desktop head, not Common: MonoGame.Content.Builder.Task runs only on the head, so a mgcb added to Common is silently never built. Put the #begin entry and the source file under Desktop/Content/. See multiplatform-conversion for the content-split rationale.
#begin Audio/song.mp3
/importer:Mp3Importer
/processor:SongProcessor
/build:Audio/song.mp3
Load with the asset name minus the source extension — /build:Audio/song.mp3 builds to Audio/song.xnb:
var song = Engine.Content.Load<Song>("Audio/song"); // not "Audio/song.mp3"
// ContentLoader disposes Load<>'d assets on screen transition — no Track() needed
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.
- yesterday First seen · 116 lines · 36 tokens per session scan A f886a953b2a3
audio is a skill published in the GitHub repository vchelaru/FlatRedBall2 (14 stars, last pushed yesterday), licensed MIT. It adds 36 tokens to every session and 1,472 once invoked, about $0.0002 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 2026-09-04.
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