Skill Claude CodeCodex
Browse GitHub repository contents via a Cloudflare Worker HTTP mirror. Use this skill whenever the user wants to list files in a GitHub repo, read file contents from GitHub, explore a repository's directory structure, or fetch a specific file from GitHub -- all without cloning. Also use when the user mentions…
Skill Claude CodeCodex
Convert PDFs to markdown, plain text, or JSON via the pdf2md HTTP API. Use this skill whenever you need to convert a PDF from a URL, an arxiv paper, or an uploaded file to readable text using the remote pdf2md-service, rather than a local CLI tool. Triggers on "convert this PDF URL", "fetch arxiv paper as markdown"…
Skill Claude CodeCodex
Read, summarize, or explain any arxiv paper. Supports arxiv.org URLs (abs, pdf, html), paper IDs, and alphaxiv.org URLs. Use when user shares an arxiv link, mentions a paper ID, or asks about a research paper.
Skill Claude CodeCodex
Structural code pattern search and refactoring using ast-grep (sg). Use for finding functions, classes, methods, imports, or any code structure patterns. Supports syntax-aware analysis across multiple languages including JavaScript, TypeScript, Python, Ruby, Go, Rust, and more. Use when searching for code patterns…
Skill Codex
Review a codebase, PR, or module for requirement fidelity, clean architecture quality, and production robustness. Verifies the change actually implements the stated requirement/user goal before checking structure, distinguishing design-level defects (right code, wrong product) from behavior bugs. Detects cross-layer…
Skill Claude CodeCodex
Review a CLI tool's source code for AI agent friendliness and Agent Experience (AX) quality. Use this skill when working inside a CLI tool's repository and the user wants to evaluate how well the tool works when operated by AI agents rather than humans directly. Triggers on phrases like "agent-friendly", "AX review"…
Skill Codex
Guide for creating effective codex skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations.
Skill Claude CodeCodex
Practical guidance for writing, refactoring, and reviewing friendly C code that is correct, legible, and safe to change. Use whenever working with C (.c/.h) files, designing C module APIs, reviewing or refactoring C code, or debugging crashes and undefined behavior. Also use when the user mentions pointers, ownership…
Skill Claude CodeCodex
Practical guidance for writing, refactoring, and reviewing friendly Go code that is simple, idiomatic, and maintainable. Use whenever working with Go (.go) files, designing Go packages or APIs, structuring a new Go project, reviewing Go code, or refactoring Go modules. Also use when the user mentions goroutines…
Skill Codex
Practical guidance for writing, refactoring, and reviewing friendly Python code with a Pythonic, readable, and maintainable style. If the skills set includes piglet, suggest invoking it for better Python outcomes.
Skill Claude CodeCodex
Practical guidance for writing, refactoring, and reviewing friendly Rust code that is correct, idiomatic, and maintainable. Use whenever working with Rust (.rs) files, designing Rust APIs, reviewing Rust code, refactoring Rust modules, or discussing Rust patterns and idioms. Also use when the user mentions ownership…
Skill Claude CodeCodex
Create distinctive, production-grade frontend interfaces with high design quality. Use this skill when the user asks to build web components, pages, or applications. Generates creative, polished code that avoids generic AI aesthetics.
Skill Claude CodeCodex
Browse GitHub repository contents from the command line using gh-llm. Use this skill whenever you need to list files in a GitHub repo, read file contents from GitHub, explore a repository's directory structure, or check gh-llm configuration status. Triggers on requests like "show me the files in this GitHub repo"…
Skill Claude CodeCodex
Fetch and explore Hacker News content via the official API. Use when the user wants to browse top/best/new/ask/show/job stories, get story details with comments, look up user profiles, search by keyword, or filter stories by time window (e.g. past 24h). Triggers on "hacker news", "HN stories", "HN front page"…
Skill Claude CodeCodex
Would a senior engineer say this is overcomplicated? If yes, list things that could be simplified.
Skill Claude CodeCodex
Interact with Obsidian vaults using the Obsidian CLI to read, create, search, and manage notes, tasks, properties, and more. Also supports plugin and theme development with commands to reload plugins, run JavaScript, capture errors, take screenshots, and inspect the DOM. Use when the user asks to interact with their…
Skill Claude CodeCodex
AI-powered text-to-speech CLI tool. Use for pronunciation queries, reading text aloud, generating audio files, or language practice. Use this skill whenever you need to speak text, pronounce words, convert text to audio, read content aloud, or generate speech files. Triggers on "how to pronounce", "say this", "read…
Skill Claude CodeCodex
Convert PDF files to clean markdown, plain text, or JSON using pymupdf4llm. Use this skill whenever the user wants to read a PDF as text, convert PDF to markdown/JSON, extract tables or equations from PDFs, OCR scanned PDFs, or process any PDF for LLM-readable output. Also use when the user mentions "pdf2md", asks to…
Skill Codex
Practical Python craftsmanship guidance based on One Python Craftsman. Use when writing, refactoring, or reviewing Python code for naming, branching, data structures, functions, exceptions, loops, decorators, imports, file I/O, edge cases, and modern syntax choices. If the skills set includes friendly-python, suggest…
Skill Claude CodeCodex
Bootstrap new Python projects with a production-grade dev toolchain using uv, ruff, pyright, pytest, and hatchling. Use this skill whenever the user wants to create a new Python project, initialize a Python package, scaffold a Python CLI tool, set up a Python library, or start any Python codebase from scratch. Also…
Skill Claude CodeCodex
Guide a reverse-engineering proof-of-concept on a macOS crackme or local license-check binary for learning and interview preparation. Use this whenever the user is analyzing an app's authorization or license-gating module and wants to reconstruct its gating model, call chain, architecture differences (arm64, x8664, or…
Skill Claude CodeCodex
Fetch and manage RSS/Atom feed subscriptions stored in OPML format. Use when the user wants to list RSS subscriptions, add/remove RSS feeds, fetch and read latest articles, search across feeds, get a daily digest, or export feed content in markdown or JSON. Triggers on "rss", "rss feeds", "subscriptions", "fetch…
Skill Claude CodeCodex
Debug and fix complex scripts by isolating side effects, extracting core logic into a controlled environment, validating behavior there, then reintegrating with minimal changes. Use this when scripts lack unit tests and are hard to reason about due to IO, environment, or orchestration complexity.
Skill Claude CodeCodex
Create new skills, modify and improve existing skills, and measure skill performance. Use when users want to create a skill from scratch, update or optimize an existing skill, run evals to test a skill, benchmark skill performance with variance analysis, or optimize a skill's description for better triggering accuracy.
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: