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 plugins/nexu-io/open-design/marketplace/plugin marketplace add nexu-io/open-designgit clone --depth 1 https://github.com/nexu-io/open-designGrade A, and why
open-design 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
{
"$schema": "https://raw.githubusercontent.com/anthropics/claude-code/main/schemas/marketplace.json",
"name": "open-design",
"owner": {
"name": "nexu-io",
"url": "https://github.com/nexu-io/open-design"
},
"description": "OpenDesign — local-first design app exposed to coding agents over MCP. Install once with your agent's plugin command and projects/files/skills are reachable through stdio.",
"plugins": [
{
"name": "open-design",
"source": "./plugins/open-design",
"description": "OpenDesign MCP server (stdio). 139 skills + projects/files/preview tools, served by your local `od` daemon. Requires `od` on PATH (brew / npm / DMG)."
}
]
}
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 · 17 lines scan A 8c02ce756c5c
open-design is a plugin published in the GitHub repository nexu-io/open-design (92,778 stars, last pushed yesterday), licensed Apache-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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