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/iplug3/audio-plugin-dev-skills/validate-vst3npx skills add iPlug3/audio-plugin-dev-skills --skill validate-vst3git clone --depth 1 https://github.com/iPlug3/audio-plugin-dev-skillsWrote 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/iplug3/audio-plugin-dev-skills/validate-vst3)<a href="https://agentmods.dev/skills/iplug3/audio-plugin-dev-skills/validate-vst3"><img src="https://agentmods.dev/badge/skills/iplug3/audio-plugin-dev-skills/validate-vst3.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 | $0.00071 | $0.00937 |
| Opus 5 | $0.00036 | $0.00468 |
| Sonnet 5 | $0.00014 | $0.00187 |
| Haiku 4.5 | $0.00007 | $0.00094 |
Grade A, and why
validate-vst3 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 4d 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 — 115 lines — stays where its author put it; the contents beside it link to each section on GitHub.
VST3 Validator
Plugin Install Locations
The validator accepts a direct path, but validator -list only scans standard locations.
| Platform | User Location | System Location |
|---|---|---|
| macOS | ~/Library/Audio/Plug-Ins/VST3/ |
/Library/Audio/Plug-Ins/VST3/ |
| Windows | %LOCALAPPDATA%\Programs\Common\VST3\ |
C:\Program Files\Common Files\VST3\ |
| Linux | ~/.vst3/ |
/usr/lib/vst3/ or /usr/local/lib/vst3/ |
Instructions
- Locate the built
.vst3bundle (in your build output directory or one of the standard locations above) - Locate the
validatorbinary (see Common Binary Locations below) - Run:
validator /path/to/plugin.vst3 - For thorough testing add
-e:validator -e /path/to/plugin.vst3 - Check output for FAILED lines — see Common Issues below for fixes
Basic Usage
# Validate a VST3 plugin (validator location depends on your VST3 SDK build)
validator /path/to/plugin.vst3
Common Binary Locations
| Platform | Path |
|---|---|
| macOS | <vst3sdk>/build/bin/Release/validator or /usr/local/bin/validator |
| Windows | <vst3sdk>\build\bin\Release\validator.exe |
| Linux | <vst3sdk>/build/bin/Release/validator |
Options
# Run extensive tests (takes longer but more thorough)
validator -e /path/to/plugin.vst3
# Quiet mode - only print errors
validator -q /path/to/plugin.vst3
# Run only a specific test suite
validator -suite "General Tests" /path/to/plugin.vst3
# Test only a specific processor class ID
validator -cid "ABCD1234..." /path/to/plugin.vst3
# Use local instance per test (isolates tests)
validator -l /path/to/plugin.vst3
Listing Plugins
# List all installed VST3 plugins
validator -list
# List snapshots from all installed plugins
validator -snapshots
Test Suites
| Suite | Description |
|---|---|
| General Tests | Basic plugin loading and info |
| Single Precision | 32-bit audio processing |
| Double Precision | 64-bit audio processing |
| Bus Activation | Bus enable/disable handling |
| Bus Arrangement | Channel configuration |
| Parameters | Parameter handling and automation |
| State | Preset save/restore |
| Editor | UI creation/destruction |
| Process Context | Transport and tempo handling |
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.
- 4d ago First seen · 115 lines · 71 tokens per session scan A 59e3348fca64
validate-vst3 is a skill published in the GitHub repository iPlug3/audio-plugin-dev-skills (89 stars, last pushed 6mo ago), licensed MIT. It adds 71 tokens to every session and 937 once invoked, about $0.0004 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 2026-08-30.
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