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/generous-corp/pulp/auv2npx skills add Generous-Corp/pulp --skill auv2git clone --depth 1 https://github.com/Generous-Corp/pulpWrote 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/generous-corp/pulp/auv2)<a href="https://agentmods.dev/skills/generous-corp/pulp/auv2"><img src="https://agentmods.dev/badge/skills/generous-corp/pulp/auv2.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 | $0.00074 | $0.17387 |
| Opus 5 | $0.00037 | $0.08693 |
| Sonnet 5 | $0.00015 | $0.03477 |
| Haiku 4.5 | $0.00007 | $0.01739 |
Grade C, and why
auv2 scanned grade C with 1 finding 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 today.
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.
Recursive force deletehighDestructive command
rm -rf with a variable or a broad path is one typo away from removing the wrong tree.
rm -rf ~/Library/Caches/AudioUnitCache How it starts
The opening of the file, as written. The whole thing — 1,050 lines — stays where its author put it; the contents beside it link to each section on GitHub.
AU v2 Skill
Use this when you are:
- Touching any AU v2 adapter — effect (
au_v2_adapter), instrument (au_v2_instrument), MIDI processor (au_v2_midi_processor), or their shared surface (au_v2_common) - Changing how Pulp packages AU v2 plug-ins in CMake (
tools/cmake/PulpUtils.cmake,tools/cmake/PulpInfoPlist.au.in) - Debugging "plug-in loads but never receives MIDI" reports against an AU host
- Picking or changing a plug-in's AU component type (4-char
typein the Info.plist) - Wiring new AU v2 features that require splitting base-class inheritance (adding
AUMIDIBase,MIDIOutput, etc.)
Scope is AU v2 only. AU v3 (AUAudioUnit-based app extensions) has different rules and lives behind the ios skill + core/format/src/au_adapter.mm.
AU v2 Component Types — Pick the Right 4cc
Hosts route MIDI based on the bundle's type field. Getting this wrong produces a silent-failure: the plug-in scans, loads, renders audio, and never sees a MIDI event.
type |
Constant | Audio I/O | MIDI I/O | When to use |
|---|---|---|---|---|
aufx |
kAudioUnitType_Effect |
in + out | none | Audio-only effect (compressor, EQ, reverb) |
aumf |
kAudioUnitType_MusicEffect |
in + out | in | Effect that wants inbound MIDI (arpeggiator on audio, MIDI-triggered gate, vocoder w/ MIDI carrier) |
aumi |
kAudioUnitType_MIDIProcessor |
none | in + out | MIDI-only processor (transpose, arp, chord, note filter) |
aumu |
kAudioUnitType_MusicDevice |
out only | in | Instrument / synth |
Load-bearing rule: Logic, MainStage, GarageBand, and other AU hosts will never call MIDIEvent / HandleMIDIEvent on an aufx-typed plug-in. If a plug-in's Processor::descriptor() sets accepts_midi = true and the bundle is still packaged as aufx, MIDI silently disappears — the adapter looks correct, the Info.plist looks correct to a casual reader, but no MIDI arrives.
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.
- today First seen · 1,050 lines · 74 tokens per session scan C 89c887ae9e2f
auv2 is a skill published in the GitHub repository Generous-Corp/pulp (16 stars, last pushed today), licensed MIT. It adds 74 tokens to every session and 17,387 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 1 finding (recursive force delete). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-04.
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