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 smk-labs/claude-pluginsnpx agentmods add plugins/smk-labs/claude-plugins/principles-firstgit clone --depth 1 https://github.com/smk-labs/claude-pluginsGrade A, and why
principles-first 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": "principles-first",
"description": "First-principles and design-thinking checks for product and architecture decisions.",
"version": "1.0.0",
"author": {
"name": "Seyed M. Keramati",
"url": "https://github.com/SMKeramati"
}
}
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 dc42a108cca4
principles-first is a plugin published in the GitHub repository smk-labs/claude-plugins (11 stars, last pushed 4d 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.
Other plugins, from other repositories
pm-ai-shipping
AI Shipping Kit — for PMs and founders accountable for AI-built code. Document a vibe-coded app, audit it for intended-vs-implemented security gaps and performance issues, and produce a reviewer-ready shipping packet.
pm-execution
Execution and product management skills: PRDs, OKRs, roadmaps, sprints, pre-mortems, stakeholder maps, user stories, prioritization frameworks, and more.
cc-handbook
Plugin marketplace listing 19 plugins: handbook, handbook-extras, handbook-qa, handbook-dotnet, handbook-microsoft-docs.
handbook-dotnet
.NET development tools including automatic CSharpier formatting for C# files and dotnet run file support.
handbook-agent-spec-kit
Spec-driven development workflow system with structured phases: Requirements → Design → Tasks → Implementation.
handbook-csharp-lsp
C# Language Server Protocol support using csharp-ls for code intelligence features.