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/reatcat/l123-harness/marketplace/plugin marketplace add reatcat/l123-harnessgit clone --depth 1 https://github.com/reatcat/l123-harnessGrade A, and why
l123-harness 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": "l123-harness",
"description": "L1-L2-L3 三级记忆 agent 方法论底座:门禁审批、零判断事件日志、周审提炼、TDD 执行流。",
"owner": {
"name": "miaomiao"
},
"plugins": [
{
"source": ".",
"name": "l123-harness",
"description": "L1-L2-L3 三级记忆 agent 底座：门禁、事件日志、周审提炼、TDD 执行流。"
}
]
}
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 · 15 lines scan A 296118a4e196
l123-harness is a plugin published in the GitHub repository reatcat/l123-harness (3 stars, last pushed 9d 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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