217,239 that install into Codex. Same mod, same page, whichever agent you run: a URL per tool would split one page into five that compete.
lelephi/marketing-agent-skills-for-founders
Skill Claude CodeCodex
Review a company website or landing page the way a head of design, a CMO, and the actual customer would. Scores it out of 50, ranks the gaps by revenue damage, and rewrites the hero. Use whenever someone shares a homepage, landing page, marketing site, or URL, or screenshots, or pasted hero copy, and wants feedback, a…
jneaimi/evaluate-before-you-build
Skill Claude CodeCodex
Solution design skill based on Bloom's AI Collaboration model. Use when the user says /design, wants to design a solution, compare architectural options, evaluate tradeoffs, or produce a solution design document before building. Also trigger on phrases like "design the solution", "how should we architect this"…
Skill Claude CodeCodex
LLM-driven epistemic reasoning engine. Evaluates claims against evidence, outputs calibrated confidence and structured belief state (VERIFIED/CONTESTED/UNCERTAIN). v2 adds 4-way constraint system, parameterized configuration, and formula-based confidence intervals. Use when the agent needs to assess whether…
Skill Codex
A coding guide for making Minecraft mods with NeoForge, a Minecraft modding framework, using specified game and framework versions.
Skill Claude CodeCodex
Run differential expression analysis on bulk RNA-seq count data with DESeq2 (R). Covers DESeqDataSet construction from a count matrix, tximport (Salmon/Kallisto), featureCounts, or SummarizedExperiment; pre-filtering; design formulas (simple, batch, paired, interaction, multi-factor, LRT); result extraction by…
Skill Claude CodeCodex
Use when asked how a project could make money, whether monetization opportunities are being missed, to research pricing or competitors for an existing codebase, or to turn a project into a revenue plan with concrete executable next steps.
dtunai/agent-skills-for-compute
Skill Claude CodeCodex
Provides Qiskit quantum computing framework for building quantum circuits, executing on IBM Quantum hardware and simulators, using runtime primitives (Sampler, Estimator), transpiler optimization, error mitigation, quantum information science, and ecosystem tools including Qiskit Metal for quantum hardware design.…
1508550385junnan-bot/Magic-Agent-Global-Rules
Skill Claude CodeCodex
Universal collaboration rules for AI coding agents. Covers output standards, token optimization (90% cache hit, 98% tool output reduction), requirements locking with anti-drift checks, context compression (9-section CC template at 85%), skill borrowing workflow, image fallback without vision models, code comment…
Skill Claude CodeCodex
Generates consistent, locked-style sets of photographic, textured, or 3D-material-rendered icons via Ideogram — 3D-rendered, claymation, hand-painted, or isometric-with-material-texture icon packs that hold a shared style recipe across every icon in the batch. Use when the user asks for "3D icon set," "claymation…
Skill Claude CodeCodex
Create a diagram, chart, schema, flowchart, or any visual representation as an Excalidraw file. Use when the user asks to "draw", "diagram", "visualize", "create a schema", "make a chart", or "show the workflow" of something.
Skill Claude CodeCodex
SEO toolkit with project management, content writing, and 15 audit sub-skills. Use this when the user asks to "perform SEO analysis", "run SEO audit", "analyze SEO", "check technical SEO", "create project", "content write", "SEO plan", "GEO", "AEO", or any SEO-related task. Includes project management, AI-powered…
Gremoryzlk/claude-warhammer-40k-skill
Skill Claude CodeCodex
Applies grimdark Warhammer 40K Imperium narration to EVERY response while this skill is enabled — all topics, all message lengths, not just 40k-related questions. Always consult and apply once active, until user disables it or asks for a plain answer.
lumizone/blog-writer-claude-skill
Skill Claude CodeCodex
Use when the user asks to write a blog article optimized for SEO/AEO/GEO, draft an SEO-driven post, ghostwrite a post in their voice, act as an SEO copywriter, or build a topic/content plan around a keyword. The user supplies a topic plus their own opinion/info; this skill researches it (web, Reddit, forums), proposes…
wrsmith108/claude-skill-version-sync
Skill Claude CodeCodex
Detect and synchronize Node.js version specifications across project files.
Skill Claude CodeCodex
Write, read, debug, and compile wenyan-lang (文言) code — a programming language using Classical Chinese grammar that compiles to JavaScript, Python, or Ruby. Use this skill whenever the user asks about wenyan-lang, Classical Chinese programming, writing .wy files, debugging wenyan code, translating between wenyan and…
Skill Claude CodeCodex
Production scope gatekeeper v3 — catches secretly-MVP plans before they reach the audit pipeline. Use this skill when the user says 'fazxes', 'check scope', 'is this complete', or right after a plan is written and before it goes to /audit-plan. Hunts for buried scope reductions ('trade-offs accepted', 'for v1'…
tavily-ai/tavily-cursor-plugin
Skill Claude CodeCodex
Extract clean content from known URLs. Use when the user supplies one or more URLs and wants the page text, says "extract", "grab the content from", "pull the text from", "get the page at", or "read this webpage".
Skill Claude CodeCodex
An automatic documentation tool that analyses dependencies, creates an outline, and writes Markdown pages with source labels.
Skill Codex
Set up a user-owned Android phone as a VibeSMS terminal over authorized ADB, then give an AI agent secure, Key-scoped access to SMS, one-time verification codes, terminal status, and inbound call records. Use when an agent needs to install or configure VibeSMS on a USB-connected Android phone, receive SMS/OTP, wait…
Skill Claude CodeCodex needs its repo
Import an Obsidian vault into ChromaDB for semantic search. Parses markdown files, extracts frontmatter, headings, tags, and content sections. Chunks intelligently by heading hierarchy. Use when indexing a knowledge base, importing notes for semantic recall, or syncing an Obsidian vault to a vector database.
Skill Claude CodeCodex
Analyze Claude Code session transcripts for repeating behavioral patterns and create GitHub Issues with suggestions.
Skill Claude CodeCodex
Use when the user asks how to make money, monetize existing work, grow revenue, choose among projects, find a first customer, improve a cash engine, or invoke MoneyPrinter.
mturac/recsys-pipeline-architect
Skill Claude CodeCodex
Designs composable recommendation, ranking, and feed pipelines using the six-stage Source→Hydrator→Filter→Scorer→Selector→SideEffect framework popularized by X's open-sourced For You algorithm. Use this skill when the user wants to build any system that picks "the top K items for a user/context" — content feeds…
brandrylabs/claude-jsonl-compressor
Skill Codex
Compress one Claude Code JSONL using a source-anchored model summary, strict active-branch isolation and recent raw context, or explicitly repair historical Read.pages compatibility. Supports candidate output and transactional replacement of one closed live session.
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: