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.
git clone --depth 1 https://github.com/Casper-Studios/casper-marketplaceWrote 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/plugins/casper-studios/casper-marketplace/stack-patterns)<a href="https://agentmods.dev/plugins/casper-studios/casper-marketplace/stack-patterns"><img src="https://agentmods.dev/badge/plugins/casper-studios/casper-marketplace/stack-patterns/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/plugins/casper-studios/casper-marketplace/stack-patterns"><img src="https://agentmods.dev/badge/plugins/casper-studios/casper-marketplace/stack-patterns.svg" alt="Reviewed on agentmods" width="80" height="20"></a>Grade A, and why
stack-patterns 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.
What it actually says
{
"name": "stack-patterns",
"version": "3.0.0",
"description": "Best-practice guidance for React, TanStack Query and Table, TypeScript, Python, Drizzle ORM, Zod, Valibot, Better All, and OpenTelemetry.",
"author": {
"name": "Casper Studios"
},
"interface": {
"displayName": "Stack Patterns",
"shortDescription": "Best-practice guidance for commmon framework and library patterns.",
"longDescription": "Best-practice guidance for React, TanStack Query and Table, TypeScript, Python, Drizzle ORM, Zod, Valibot, Better All, and OpenTelemetry.",
"developerName": "Casper Studios",
"category": "Productivity",
"capabilities": [],
"defaultPrompt": "Apply the relevant stack patterns to this implementation."
}
}
What it installs
The manifest is a name and a version. 10 skills travel with it, and installing the plugin installs all of them — 384 tokens a session between them. Each is measured on its own page, and each can be installed alone.
- Skill open-telemetry-best-practices A 41 tokens
- Skill python-best-practices A 37 tokens
- Skill react-best-practices A 32 tokens
- Skill typescript-best-practices A 37 tokens
- Skill zod-best-practices A 38 tokens
- Skill drizzle-orm-best-practices A 42 tokens
- Skill tanstack-react-query-best-practices A 37 tokens
- Skill valibot-best-practices A 40 tokens
- Skill better-all-best-practices A 41 tokens
- Skill tanstack-react-table-best-practices A 39 tokens
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 d36d49fd4a63
- 1mo ago First seen · 18 lines scan A 6a8c0041a384
stack-patterns is a plugin published in the GitHub repository Casper-Studios/casper-marketplace (13 stars, last pushed 1mo ago), licensed MPL-2.0. 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 2026-08-30.
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