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 davidsunglee/pi-mux-subagentsnpx agentmods add plugins/davidsunglee/pi-mux-subagents/claude-plugingit clone --depth 1 https://github.com/davidsunglee/pi-mux-subagentsWrote 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/davidsunglee/pi-mux-subagents/claude-plugin)<a href="https://agentmods.dev/plugins/davidsunglee/pi-mux-subagents/claude-plugin"><img src="https://agentmods.dev/badge/plugins/davidsunglee/pi-mux-subagents/claude-plugin.svg" alt="Measured on agentmods" height="20"></a>Grade A, and why
pi-subagent 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.
What it actually says
{
"name": "pi-subagent",
"version": "1.0.0",
"description": "Bundled plugin for pi-spawned Claude pane subagents — provides the Stop hook for transcript surfacing and the subagent_done MCP tool for explicit completion signaling."
}
What it installs
The manifest is a name and a version. 2 hooks, 1 MCP server travel with it, and installing the plugin installs all of them. Each is measured on its own page, and each can be installed alone.
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 · 6 lines scan A 05303829bfce
pi-subagent is a plugin published in the GitHub repository davidsunglee/pi-mux-subagents (2 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 2026-08-31.
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