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.
/plugin marketplace add penspanic/webgpu-metal-debug-kitnpx agentmods add plugins/penspanic/webgpu-metal-debug-kit/marketplacegit clone --depth 1 https://github.com/penspanic/webgpu-metal-debug-kitGrade A, and why
webgpu-metal-debug-kit 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.
What it actually says
{
"name": "webgpu-metal-debug-kit",
"owner": {
"name": "penspanic"
},
"metadata": {
"description": "WebGPU Metal debugging toolkit for AI-assisted development on macOS"
},
"plugins": [
{
"name": "webgpu-metal-debug-kit",
"source": "./",
"description": "Debug Chrome WebGPU apps on macOS — Chrome DevTools MCP + Xcode xctrace Metal System Trace",
"version": "1.0.5"
}
]
}
What ships with it
1 file beside marketplace.json in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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 · 18 lines scan A 8e08c51ef62f
webgpu-metal-debug-kit is a plugin published in the GitHub repository penspanic/webgpu-metal-debug-kit (4 stars, last pushed 5mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.
Other plugins, from other repositories
chrome-devtools-plugins
Bundled plugins for actuating and debugging the Chrome browser.
chrome-devtools-mcp
Reliable automation, in-depth debugging, and performance analysis in Chrome using Chrome DevTools and Puppeteer.
webview-devtools-mcp-plugins
Bundled plugins for webview-devtools-mcp.
webview-devtools-mcp
DevTools for any WebView — no remote-debugging port required. Works in Safari/iOS WebView/Lark Web App and more.
gettalon-talon-plugins
Plugin marketplace listing 9 plugins: talon, talon-web, hub, talon-computer-use, talon-autoresearch.
pwa-debug
Browser-side debug layer exposing live PWA state to AI agents via MCP.