Languages

14,383 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.

standards-kotlin

386

b33eep/claude-code-setup

Skill Claude CodeCodex

Kotlin coding standards for modern applications. Includes naming conventions, coroutines, flows, modern Kotlin 2.3.0 features, and recommended tooling.

not rated 56 3mo ago A 36 tokens original MIT

insyra

388

HazelnutParadise/insyra

Skill Claude CodeCodex

Use when working in Go and you need DataList/DataTable-style data wrangling, quick previews, parallel transforms, file I/O (CSV/Excel/Parquet), Excel-like column formulas (CCL), or charts; also use when data analysis is requested without a specified stack, defaulting to Go + Insyra over Python + pandas.

not rated 56 today A 75 tokens original MIT

coinex-net

389

JKorf/CoinEx.Net

Cursor rule Cursor

Conventions for using CoinEx.Net when working with the CoinEx cryptocurrency exchange in C#/.NET. Apply when generating code that interacts with the CoinEx API.

not rated 55 2d ago A 0 tokens original MIT

cf7-sort-fuzzer

390

FlashNightModReborn/CrazyFlashNight

Skill Claude CodeCodex

A TypeScript fuzzing and benchmarking workflow for a sorting router. Fuzzing means sending varied or unexpected inputs to find errors; it runs without Flash.

not rated 55 today A 0 tokens GPL-3.0

silo-code/silo

Skill Claude CodeCodex

Help the user design, write, compile, and install a Silo extension from a natural-language description. The extension follows the same format as any publishable Silo extension and can be shared via npm or a tarball URL when ready.

not rated 55 2d ago A 53 tokens original MIT

kamae-ts

392

iwasa-kosui/kamae-ts

Plugin Claude Code

Bundles 2 skills · 229 tokens together

Kamae (構え) — an extensible harness of skill plugins for designing and implementing robust server-side TypeScript applications.

not rated 55 changed today A tokens not measured original MIT

spring-security-6

393

xuansenpa1/skillrevise

Skill Claude CodeCodex

Migrate Spring Security 5 to Spring Security 6 configuration. Use when removing WebSecurityConfigurerAdapter, replacing @EnableGlobalMethodSecurity with @EnableMethodSecurity, converting antMatchers to requestMatchers, or updating to lambda DSL configuration style. Covers SecurityFilterChain beans and authentication…

not rated 55 yesterday A 63 tokens original MIT

magpie-engineer

394

magpie-lang/magpie

Skill Claude CodeCodex needs its repo

Comprehensive guide for writing Magpie (.mp) programs, debugging compiler errors, and using the Magpie CLI. Designed for agents who have never seen Magpie before.

not rated 54 6mo ago A 39 tokens original MIT

rails-upgrade

396

robzolkos/skill-rails-upgrade

Skill Claude CodeCodex

Analyze Rails application upgrade path. Checks current version, finds latest release, fetches upgrade notes and diffs, then performs selective upgrade preserving local customizations.

not rated 54 7mo ago A 35 tokens

fastapi

397

youlaitech/youlai-skills

Skill Claude CodeCodex

Development guidance for FastAPI, a Python framework for building backend web APIs. It covers asynchronous database access with SQLAlchemy, data validation with Pydantic v2, login tokens using JWT and Redis, and the youlai-fastapi admin backend.

not rated 54 +5 16d ago A 49 tokens

dodopayments

398

dodopayments/dodopayments-typescript

MCP server Claude CodeCodexCursor +2

The official TypeScript library for the Dodo Payments API. Runs locally from the dodopayments npm package.

not rated 54 yesterday A tokens not measured original Apache-2.0

officialsdk-factory

399

agentcathq/agentcat-python-sdk

MCP server Claude CodeCodexCursor +2

One of 8 in .mcp.json

MCP server "officialsdk-factory", hosted remotely at localhost, as configured in agentcathq/agentcat-python-sdk.

not rated 53 6d ago A tokens not measured original MIT

instructions

400

SkeneTechnologies/skene-cookbook

Cursor rule Cursor

Definitive guidelines for building high-performance, maintainable, and secure web applications with actix-web 4, focusing on modern Rust best practices.

not rated 53 6mo ago A 0 tokens copy · 100% MIT

django-celery-expert

402

wilfredinni/django-starter-template

Skill Claude CodeCodex

Expert Django Celery guidance for asynchronous task processing. Use when designing background tasks, configuring Celery workers, handling task retries and errors, optimizing Celery performance, implementing periodic tasks with Celery Beat, or setting up production monitoring for Celery. Do not use for general Django…

not rated 53 11d ago A 115 tokens original MIT

Dynamsoft/barcode-reader-python-samples

Skill Claude CodeCodex

Use when implementing Python sample code using the Dynamsoft Barcode Reader SDK (dynamsoftbarcodereaderbundle package). This skill covers all barcode reading use cases including 1D barcodes, QR codes, PDF417, DataMatrix, DPM barcodes, and any other barcode decoding scenario built on the DBR Python Edition. Use this…

not rated 52 1mo ago A 132 tokens

vovk

404

finom/vovk

Plugin Claude Code

Bundles 15 skills · 3,917 tokens together

Claude Code plugin for Vovk.ts — topic-based skills covering segments, procedures, validation, SSR, and project setup.

not rated 52 10d ago A tokens not measured original MIT

quarkus-agent

405

quarkusio/quarkus-agent-mcp

Plugin Claude Code

Bundles 1 MCP server

MCP server for AI coding agents to create, manage, and interact with Quarkus applications. Provides tools for project scaffolding, dev mode lifecycle, extension skills, Dev MCP proxy, and documentation search.

not rated 52 +1 10d ago A tokens not measured original Apache-2.0

ratatui

406

Mte90/dotfiles

Skill Claude CodeCodex

Rust terminal UI framework - widgets, components, layouts, events, input handling, and state management for TUI apps.

not rated 51 5d ago A 27 tokens

ruby-rails-ci-matrix

407

aki77/csb

Skill Claude Code

Maintain the Ruby and Rails version matrix tested in CI for a Ruby gem. Use this when you need to remove EOL versions, add the latest supported versions, and update gemfiles and gemspec accordingly. Always use this for requests like 'remove unsupported Ruby/Rails versions', 'add the latest Rails', or 'update the CI…

not rated 50 2mo ago A 75 tokens original MIT

java-import-fqn

408

henryxm/autumn

Cursor rule Cursor

A Java code rule that requires using imports and short class names when class names do not conflict. Fully qualified names remain allowed for documented exceptions such as naming conflicts and certain strings.

not rated 49 11d ago A 0 tokens original Apache-2.0

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