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 ideo/Rubber-Ducknpx agentmods add plugins/ideo/rubber-duck/plugingit clone --depth 1 https://github.com/ideo/Rubber-DuckGrade A, and why
duck-duck-duck 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 2d 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": "duck-duck-duck",
"version": "4",
"description": "Duck Duck Duck companion — eval scoring, voice permissions, TTS reactions. Requires the Duck Duck Duck app: https://github.com/ideo/Rubber-Duck/releases",
"author": {
"name": "Daniel Deruntz",
"url": "https://github.com/ideo"
}
}
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.
- 2d ago First seen · 10 lines scan A 2001e1474105
duck-duck-duck is a plugin published in the GitHub repository ideo/Rubber-Duck (23 stars, last pushed 2mo 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 2026-08-30.
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