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hardikpandya-stop-slop

A skill file for removing AI tells from prose

Contributed by Sentinel

claude-code-system-prompts

All parts of Claude Code's system prompt, including builtin tool descriptions, sub agent prompts (Plan/Explore/Task), utility prompts (CLAUDE.md, compact, Bash cmd, security review, agent creation, etc.). Updated for each Claude Code version.

nidhinjs-prompt-master

A Claude skill that writes the accurate prompts for any AI tool. Zero tokens or credits wasted. Full context and memory retention

Contributed by Sentinel

pocketflow

Pocket Flow: 100-line LLM framework that lets agents build agents

phoenix

Arize Phoenix: open-source LLM observability with built-in evals, span tracing, and dataset curation for RAG and agents.

fullstack-dev-skills

A Claude Code plugin with 65 skills for full-stack development across many frameworks, 9 workflow commands for Jira and Confluence, and a /common-ground command that lists Claude's assumptions about your project.

claude-code-infrastructure-showcase

An approach to working with Skills that uses hooks to make Claude select and activate the right Skill for the current context. Documented, and adaptable to other projects and workflows.

agricidaniel-claude-ads

Claude-first paid-media operations skill for Claude Code across 12 ad platforms (Google, Meta, YouTube, LinkedIn, TikTok, Microsoft, Apple, Amazon, Reddit, Pinterest, Snapchat, X): source-grounded audits, deterministic scoring, versioned JSON reports, and capability-gated account changes.

Contributed by Sentinel

harness

A meta-skill that designs domain-specific agent teams, defines specialized agents, and generates the skills they use. Resources are in Korean but can produce high-quality English-language output.

claude-code-tips

35+ short Claude Code tips covering voice input, system prompt patching, container workflows for risky tasks, conversation cloning, multi-model orchestration with Gemini CLI and more, with demos, working scripts and a plugin.

ralph-for-claude-code

An autonomous AI development framework that enables Claude Code to work iteratively on projects until completion. Features intelligent exit detection, rate limiting, circuit breaker patterns, and comprehensive safety guardrails to prevent infinite loops and API overuse. Built with Bash, integrated with tmux for live monitoring, and includes 75+ comprehensive tests.

claude-code-pm

A project-management workflow for Claude Code with specialised agents, slash commands and documentation.

swe-bench

SWE-bench: benchmark for evaluating LLMs on real-world GitHub issue resolution across 12 popular Python repositories.

trail-of-bits-security-skills

A very professional collection of over a dozen security-focused skills for code auditing and vulnerability detection. Includes skills for static analysis with CodeQL and Semgrep, variant analysis across codebases, fix verification, and differential code review.

claude-code-ultimate-guide

A guide to Claude Code from beginner to power user, with templates for its features, guides on agentic workflows, quizzes and a cheatsheet. Check that it is current before relying on it.

giskard

Open-source LLM testing framework for detecting vulnerabilities (prompt injection, hallucinations, bias) via automated scan.

codebase-to-course

A Claude Code skill that turns any codebase into an interactive single-page HTML course for non-technical readers.

learn-agentic-ai

Learn Agentic AI using Dapr Agentic Cloud Ascent (DACA) Design Pattern: OpenAI Agents SDK, Memory, MCP, A2A, Knowledge Graphs, Rancher Desktop, and Kubernetes

agenta

Open-source LLM developer platform with prompt playground, evaluation pipelines, and A/B testing for iterating on LLM apps.

openai-simple-evals

OpenAI's lightweight benchmark suite (MMLU, HumanEval, MATH, GPQA, MGSM) for fast model capability comparisons.

ysymyth-react

[ICLR 2023] ReAct: Synergizing Reasoning and Acting in Language Models

Contributed by Sentinel

big-bench

Google's Beyond the Imitation Game benchmark: 200+ diverse tasks designed to probe capabilities beyond standard NLP benchmarks.

trulens

Evaluation and tracking for LLM and RAG applications with a feedback-function API and experiment dashboard.

xlang-ai-osworld

[NeurIPS 2024] OSWorld: Benchmarking Multimodal Agents for Open-Ended Tasks in Real Computer Environments

Contributed by Sentinel