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n8n-io-n8n

Fair-code workflow automation platform with native AI capabilities. Combine visual building with custom code, self-host or cloud, 400+ integrations.

Contributed by Sentinel

superpowers

A bundle of skills for software engineering that covers much of the development life cycle: planning, reviewing, testing and debugging. Many consolidate standard engineering practice.

everything-claude-code

A large collection of resources for Claude Code across core engineering domains. Most resources stand alone, and the author's own workflow is optional.

mattpocock-skills

Skills for Real Engineers. Straight from my .agents directory.

Contributed by Sentinel

tt-a1i-archify

Agent skill for beautiful, verifiable architecture, workflow, sequence, data-flow, and lifecycle diagrams—self-contained HTML with motion and crisp export.

Contributed by Sentinel

anthropics-skills

Public repository for Agent Skills

Contributed by Sentinel

garrytan-gstack

Use Garry Tan's exact Claude Code setup: 23 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA

Contributed by Sentinel

nextlevelbuilder-ui-ux-pro-max-skill

An AI skill that provides design intelligence for building professional UI/UX across multiple platforms.

Contributed by Sentinel

karpathy-autoresearch

AI agents running research on single-GPU nanochat training automatically

Contributed by Sentinel

learn-claude-code

An analysis of how coding agents like Claude Code are designed, which breaks an agent into its basic parts and rebuilds it with minimal code: a rudimentary agent with skills, sub-agents and a to-do list in a few hundred lines of Python.

sentry-llm-monitoring

Sentry's error and performance monitoring extended to LLM applications. It captures exceptions, latency, and AI token usage with OpenTelemetry integration.

claude-scientific-skills

A set of ready-to-use Agent Skills for research, science, engineering, analysis, finance and writing.

wshobson-agents

Multi-harness agentic plugin marketplace for Claude Code, Codex, Cursor, OpenCode, GitHub Copilot, and Google Antigravity

Contributed by Sentinel

mlflow-tracing

MLflow's LLM tracing module instruments model calls, agent steps, and tool invocations, storing them alongside experiment runs for reproducibility.

langfuse

Open-source LLM engineering platform with traces, evals, prompt management, and datasets for debugging and improving LLM applications.

virgiliojr94-book-to-skill

Turn any technical book PDF into a Claude Code skill — ready to study, reference, and use while you work.

Contributed by Sentinel

openai-symphony

Symphony turns project work into isolated, autonomous implementation runs, allowing teams to manage work instead of supervising coding agents.

Contributed by Sentinel

alirezarezvani-claude-skills

380 Claude Code skills & agent skills & plugins (30+ Agents, 70+ custom commands, 380+ skills, customizable references, scripts) for Claude Code, Codex, Gemini CLI, Cursor, and 8 more coding agents — engineering, marketing, product, compliance, C-level advisory, research, business operations, commercial & finance, and your daily productivity skills.

Contributed by Sentinel

a2a-protocol-github-repository

Google's official repository for A2A protocol

voltagent-awesome-claude-code-subagents

A collection of 100+ specialized Claude Code subagents covering a wide range of development use cases

Contributed by Sentinel

promptfoo

CLI and library for testing, comparing, and red-teaming LLM prompts and agents with assertions and CI integration.

compound-engineering-plugin

A very pragmatic set of well-designed agents, skills, and commands, built around a discipline of turning past mistakes and errors into lessons and opportunities for future growth and improvement. Good documentation.

claude-hud

A status line for Claude Code that shows context usage, tools, agents, to-dos and more. Highly configurable, and maintained when it was listed.

openai-evals

OpenAI's official framework for evaluating LLMs and LLM-powered systems, with a registry of community eval sets.