8,213 mods tagged anthropic that install into Codex, measured the same four ways as everything else here: what each costs in tokens on every session, what a security scan found and why, whether it is the original, and what changed.
Skill Claude CodeCodex
Think like Fable 5 — natural, flowing, purposeful reasoning distilled from 4,665 real chain-of-thought traces with mathematical precision. Use this skill EVERY TIME before writing code, making decisions, or taking action.
Skill Claude CodeCodex
Authorized penetration tester persona — offensive security specialist for network, web app, cloud, and Active Directory assessments. Requires explicit authorization.
MCP server Claude CodeCodexCursor +2
MCP server for YADE open-source discrete element method simulation. Runs locally from the yade-mcp Python package.
MCP server Claude CodeCodexCursor +2
Query Spanlens LLM observability from Cursor, Claude Desktop, or Continue via MCP. Runs locally from the @spanlens/mcp-server npm package. Needs 2 environment variables to run.
ericluo04/claude-academic-workflow
Skill Claude CodeCodex
Design, estimate, validate, and write up a difference-in-differences analysis, using the post-2018 heterogeneity-robust toolkit with an explicit statement of which parallel-trends assumption is imposed. TRIGGER on "difference-in-differences", "DiD", "TWFE", "event study", "staggered adoption", "parallel trends"…
creationskiro/planmysaas-claude-skill
Skill Claude CodeCodex
Use this skill when the user wants to plan a SaaS product end-to-end — turn a one-line idea into a full blueprint with research, analysis, architecture, feature specs, frontend wireframes, phases, and a deep step-by-step build playbook for Claude Code. Triggers on phrases like "plan my saas", "/planmysaas", "build a…
Skill Claude CodeCodex
Startup / AI-startup CTO who is also a top-tier individual contributor. Two modes: (1) greenfield — turn fuzzy business intent into a buildable design (brief.md, arch.md, specs/) through conversation; (2) brownfield — work hands-on inside an existing codebase: investigate, recommend, refactor, write features, debug…
Skill Claude CodeCodex
Monitor and control ProxyClawd MITM proxy for Claude Code. Inspect intercepted API requests, view conversation history, and send messages through the proxy.
MCP server Claude CodeCodexCursor +2
Model Context Protocol (MCP) server for Monarch Money personal finance platform. Runs locally from the monarch-mcp Python package.
Continuum-AI-Corp/orcarouter-mcp-server
MCP server Claude CodeCodexCursor +2
Browse 160+ LLM models and live pricing — no API key needed for catalog. Add key to route chat. Runs locally from the @orcarouter/mcp npm package. Needs 3 environment variables to run.
MCP server Claude CodeCodexCursor +2
Free, local MCP bridge for Figma — HTML, CSS, Tailwind, tokens, agent handoff bundles. Runs locally from the figbridge-mcp npm package. Needs 1 environment variable to run.
MCP server Claude CodeCodexCursor +2
Privacy-first unofficial Garmin Connect MCP for AI health, sleep, activity & recovery agents. Runs locally from the garmin-mcp-unofficial npm package. Needs 6 environment variables to run.
MCP server Claude CodeCodexCursor +2
Runtime constitutional verification for AI answers — claim reasoning, ECS, red team, audits. Runs locally from the @glassbox-framework/mcp npm package. Needs 4 environment variables to run.
Skill Claude CodeCodex
Comprehensive guide for designing, building, testing, and distributing Claude skills. Use when user wants to "create a skill", "build a skill", "write a SKILL.md", "design a workflow skill", "make an MCP skill", or asks about skill structure, frontmatter, trigger phrases, or skill best practices. Walks through the…
Skill Claude CodeCodex
Show the current profile's configuration — plugins, aliases, model/context, slash commands, launch prompt, MCP overrides, hooks, launch flags, and tags.
Skill Claude CodeCodex
Senior-QA review of a code change before you ship it. Sizes the diff, then launches QA reviewers — a regression hunter ("does this break anything that already worked?") and a change reviewer ("does this actually do what it claims, including edge cases?") — and consolidates ONE evidence-based SIGN OFF / SIGN OFF WITH…
MCP server Claude CodeCodexCursor +2
A local memory service that stores and retrieves information about situations and entities for an AI assistant. It runs from a Python package and needs one environment variable.
arturseo-geo/claude-code-skills
Skill Claude CodeCodex
Design, build, and debug AI agent systems — including multi-step reasoning loops, tool use, memory, planning, multi-agent orchestration, and autonomous workflows. Use this skill whenever the user wants to build an AI agent, agentic pipeline, or autonomous workflow; asks about agent architectures (ReAct…
Gabberflast/prose-revision-skill-ht-anthony-lee-zhang
Skill Claude CodeCodex
Revise draft prose by finding the best structure for the ideas the user already wants to express. The goal is clear logical movement supported by natural, elegant language: idea flow first, linguistic flow second. Prose revision is different from proofreading. Prose revision takes a relatively unpolished draft and…
smilemin07/korean-rnd-regs-mcp
MCP server Claude CodeCodexCursor +2
A local MCP server for reviewing South Korean national research-and-development regulations. MCP is a way for an AI agent to call an external tool.
MCP server Claude CodeCodexCursor +2
LLM-powered logical reasoning with Prolog - Calculator for logic. Runs locally from the prolog-reasoner Python package.
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, edit, 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.
Skill Claude CodeCodex
Confluence team wiki and documentation platform - lets an agent search, read, and create pages across internal knowledge bases, runbooks, technical documentation, and policy spaces.
Skill Codex
Delegate coding to OpenAI Codex CLI (features, PRs).
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: