Developer Tools plugins

Claude Code and Codex plugins their authors filed under "Developer Tools". All categories.

Create or update Claude skills optimized for Skillmark benchmarks. Use for new skills, skill scripts, references, benchmark optimization, extending Claude's capabilities. Adapted from Anthropic's Apache-2.0 skill-creator skill.

1 skill

nextlevelbuilder/skillx 196

hol-guard

claude

Protect local AI coding harnesses with HOL Guard runtime safety, approvals, audit receipts, and package scanning.

1 skill

nextlevelbuilder/skillx 196

Package the JSONX generative UI agent workflow for Codex.

1 skill · app connector

repetere/jsonx 189

JSONX

codex

Package the core JSONX and JXM agent workflow for Codex.

1 skill

repetere/jsonx 189

is-kit

codex

Build and migrate composable TypeScript runtime type guards with is-kit.

1 skill

necoz-oss/is-kit 185

sc4s-plugin

claudecodex

Create, configure, troubleshoot, and safely manage SC4S.

6 skills

splunk/splunk-connect-for-syslog 184

deliberation

claudecodex

Use when you want a delegated second opinion or implementation from GPT (Codex), Gemini, Grok (xAI), or OpenRouter (config-driven, 400+ models) - eight expert subagents (Architect, Plan Reviewer, Scope Analyst, Code Reviewer, Security Analyst, Researcher, Debugger, Writing Editor) and bundled ask-gpt/ask-gemini/ask-grok/ask-openrouter/ask-all/consensus commands, advisory (read-only) or implementation (write; only Gemini can implement - GPT, Grok, and OpenRouter are advisory-only).

10 skills · 15 commands · 4 MCP servers

antonbabenko/deliberation 183

uipath

claudecodex

UiPath plugin for Claude Code — custom skills, agents, hooks, and MCP servers for UiPath workflows, UI automation, UI testing and UiPath troubleshoot

32 skills · 1 command · hooks

UiPath/skills 180

An umbrella collection of 23 skills + 1 hook for AI-driven development: agent self-configuration (MCP / hooks / settings / skills / plugins / cross-agent repository readiness / safe CLI installation), engineering practices (UX review and accessibility, maintainable complexity, prompt engineering, FPF problem solving, bug-fix protocol, planning gate, repository-history investigation, repository activity summary, C# refactoring), AI infrastructure (OpenRouter endpoint ranking and routing), research & docs (Semantic Scholar deep research, URL-to-Markdown, ubiquitous-language thesaurus), macOS & Windows health & cleanup, and niche utilities (clipboard, Windows QA). Plus a Claude Code Bash safety hook.

23 skills

CodeAlive-AI/ai-driven-development 178

AI agent skills — reusable workflows, protocols, and knowledge packs for agentic systems.

194 skills

magnus919/agent-skills 175

openiap

claudecodex

Inspect and implement in-app purchase flows with OpenIAP and IAPKit through the hosted MCP server (iapkit_* tools).

1 skill · 1 MCP server

hyodotdev/openiap 168

supercov

claudecodex

Coverage, security and code quality for coding agents.

2 skills · 4 commands

supercorp-ai/supercov 166

android-dev

claudecodex

Android/Kotlin expertise. Ships the android-dev agent, android-patterns, and 37 vendored third-party skills (Compose / architecture / Gradle + 16 gplay-* Google Play Console CLI + 6 official Android team skills).

36 skills · 1 agent

hanamizuki/solopreneur 157

ios-dev

claudecodex

iOS/macOS SwiftUI expertise. Ships the ios-dev agent, ios-patterns, ios-app-templates (reference apps), and 24 vendored third-party skills (apple-design + iphone-apps + asc-* App Store Connect CLI).

26 skills · 1 agent

hanamizuki/solopreneur 157

solopreneur

claudecodex

Core skills: plan review, code review loops, backlog management, and thinking partners.

17 skills

hanamizuki/solopreneur 157

ailoy

claudecodex

Build an AI agent in Python, Node.js or Rust, with a Linux micro-VM of its own to run code in.

1 skill

brekkylab/ailoy 157

super-sidebar

claudecodex

See your agents and follow the work: agent tree, live status, and stage-grouped task flow in a native Claude pane, plus a local Codex session dashboard.

Zafer-Liu/claude-super-sidebar 157

nlpm

claudecodex

Natural-Language Programming Manager — score, check, fix, and test NL artifacts across Claude Code, Codex CLI, and Antigravity. Tier-aware scoring with per-tool overlays.

17 skills · 15 commands · 8 agents · hooks

xiaolai/nlpm 155

firecrawl

claudecodex

Skills and MCP configuration for using the Firecrawl CLI and integrating Firecrawl scrape, search, and interact into apps and agents.

32 skills · 1 MCP server

firecrawl/skills 155

Cellar

codex

Connect, browse, query and review database edits in a Cellar workspace.

1 skill · 1 MCP server

MRL-00/cellar 154

Governance kernel for OpenAI Codex CLI: the generated codeArbiter governance surface plus enforcement hooks (persona injection, blocking pre-exec and pre-write gates, append-only audit trail), sharing one .codearbiter/ store with the Claude Code sibling plugin. Standalone: opt a repo in with ca-init; enforcement stays dormant until .codearbiter/CONTEXT.md carries 'arbiter: enabled'. Requires Python 3 and Codex >= 0.143.0. CI continuously verifies, through a real Codex host at 0.143.0 and 0.145.0, that the plugin installs, reads back enabled, and ships every hook script it declares; an advisory lane tracks npm latest for upstream drift. Hook FIRING - live persona injection and live blocks inside a turn - is verified by hand per release against docs/codex-parity-testing.md, because a turn needs a model and a provider credential cannot gate fork pull requests.

53 skills · 20 agents · hooks

arbiterForge/codeArbiter 153

jev-guard

claudecodex

Prompt-injection and dangerous-action guard for coding agents, powered by Jev.

hooks

leepokai/jev-guard 153

is-kit

codex

Build and migrate composable TypeScript runtime type guards with is-kit.

1 skill

nyaomaru/is-kit 149

cwb-app-icon

claudecodex

AI-powered app icon generation for React Native and Expo apps, with iOS 26 Liquid Glass and Android adaptive icon support

1 skill

Code-with-Beto/skills 148

cwb-ship

claudecodex

Scaffold production-ready React Native apps using @codewithbeto/ship CLI

1 skill

Code-with-Beto/skills 148

cwb-theming

claudecodex

Scaffold a unified cross-platform color theme system (native iOS + Android Material You) into an Expo Router app

1 skill

Code-with-Beto/skills 148

MCP server enabling AI clients to interact with any MediaWiki wiki through standard tools

1 MCP server

ProfessionalWiki/MediaWiki-MCP-Server 147

Convert agentic repositories into focused ChatGPT/Codex plugins, add host workspace operations, execute available Python verification, then validate, package, and prepare them for submission

9 skills

imMamdouhaboammar/chatgpt-codex-plugin-autopilot 144

Write prompts, system instructions, agent directives, and skill descriptions using two stacked layers: outcome-first (goal, success criteria, stopping condition) plus directional language (every sentence names the path with positive verbs).

1 skill

kingbootoshi/directional-prompting 144

uncomment

claudecodex

Inventory, preserve and remove source comments with AST parsing. Skills only; install the Uncomment CLI separately.

1 skill

Goldziher/uncomment 141