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 mathbullet/skillsnpx agentmods add plugins/mathbullet/skills/marketplacegit clone --depth 1 https://github.com/mathbullet/skillsGrade A, and why
skills 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.
How it starts
The opening of the file, as written. The whole thing — 82 lines — stays where its author put it; the contents beside it link to each section on GitHub.
{
"name": "skills",
"owner": {
"name": "mathbullet"
},
"metadata": {
"description": "Claude Code skills by mathbullet"
},
"plugins": [
{
"name": "writing-quotation",
"source": "./plugins/writing-quotation",
"description": "Formatting rules for quoting external sources inside a Markdown document. Quotations always live in code blocks (never `>`), original and translation sit together, the source reference goes on the line after the fence, and bare numeric references are forbidden.",
"version": "1.0.0",
"author": {
"name": "mathbullet"
},
"license": "MIT"
},
{
"name": "documenting-with-sources",
"source": "./plugins/documenting-with-sources",
"description": "Common conventions for writing Markdown documents that cite outside sources. Defines mandatory citations, in-text reference format, separation of quotation from prose, the ban on fabricated associations, and the source-list format. Used by survey, paper-details, and other sourced-writing skills.",
"version": "1.0.0",
"author": {
"name": "mathbullet"
},
"license": "MIT"
},
{
"name": "survey",
"source": "./plugins/survey",
"description": "Multi-source investigation skill that collects papers, articles, social-media posts, and industry signals on a topic into an indexed Markdown report. Includes sub-agent parallelism, Assertion-Evidence prose ordering, table-of-contents requirements, and an output convention. Depends on documenting-with-sources and writing-quotation.",
"version": "1.0.0",
"author": {
"name": "mathbullet"
},
"license": "MIT"
},
{
"name": "paper-details",
"source": "./plugins/paper-details",
"description": "Produce a faithful detailed explainer of an academic paper as a Markdown document. Section structure mirrors the paper, equations render as LaTeX with explicit variable definitions, citaWhat 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 · 82 lines scan A 4971e94b6757
skills is a plugin published in the GitHub repository mathbullet/skills (114 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.
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