10 November 2026

Claude skills: folders of instructions, scripts, and resources

Skills are folders of instructions, scripts, and resources that Claude loads dynamically for specialized tasks. They teach Claude to complete specific tasks in a repeatable way.

• Each skill is self-contained in one folder with a SKILL.md file holding instructions and metadata.
• Examples range from art, music, and design to web app testing, MCP server generation, and enterprise workflows.
• Many skills are Apache 2.0, including the document creation and editing skills.

Meta's open source design system for people and agents

Astryx is an open source design system that grew inside Meta over eight years and powers 13,000+ apps. It ships 150+ accessible React components with theming and dark mode.

• Import pre-built CSS and typed React components, with no build plugin or styling library to adopt.
• Components can be composed at any level, and swizzle ejects a component's full source into your project.
• Built on React 19+ and StyleX. Currently in beta.

Find social media accounts from a username across 400+ networks

Sherlock searches one or more usernames across more than 400 social networks from the command line. Found accounts are saved to a text file per username.

• It installs with pipx, pip, uv, or Docker.
• Results can also be exported to CSV or XLSX, and a search can be limited to chosen sites or sent through a proxy.

A physics engine for robotics research and simulation

MuJoCo (Multi-Joint dynamics with Contact) is a physics engine for simulating articulated structures that interact with their environment. It is maintained by Google DeepMind and aimed at researchers and developers.

• It has a C API. The simulation module works on low-level data structures preallocated by the built-in XML compiler.
• Interactive visualization runs in native desktop windows and web browsers, with Python bindings and a Unity plug-in.
• You can try it in the browser at mujoco.org with nothing to install.

Starter projects for building with the Claude API

A collection of projects for getting started with applications built on the Claude API. Each quickstart is a foundation you can build on and customize.

• Examples include a Customer Support Agent with a knowledge base and a Financial Data Analyst with interactive data visualization.
• There is a Computer Use Demo, an environment for Claude to control a desktop, and a native macOS version best run in a VM.
• A Claude API key is required.

A memory you control for the agent you already use

GBrain stores explicit facts with their sources, supports corrections and withdrawal, and makes the same memory available across agents. It is MIT-licensed and free to self-host.

• Start with keyless memory and keyword retrieval. Semantic search, synthesis, and background enrichment can be added later.
• It connects to agents over MCP, and gbrain mcp expose publishes the brain on your Tailscale tailnet.

A browser CLI for AI agents, one command per step

agent-browser is a native Rust CLI that gives an AI agent a browser it can drive from the shell. snapshot returns the page as compact text with a ref such as @e1 for each element.

• The agent acts on a ref, reads the page again to check the result, and repeats. The browser stays open between commands.
• A click fails with an error instead of reporting success when the target is hidden, disabled, or outside the viewport.

Ordinary WiFi as a presence and vital sign sensor

RuView turns ordinary WiFi signals into real-time spatial sensing that detects people, breathing, heart rate, and movement without video. The README says it works through walls and in the dark.

• It connects to Home Assistant through an MQTT publisher with one --mqtt flag.
• It can pair with Apple Home, Google Home, Alexa, and SmartThings as a Matter Bridge.
• Each node exposes 21 entities: 11 raw signals and 10 inferred states such as someone-sleeping and fall-risk-elevated.

LLM stock analysis with automated daily reports

An LLM-based stock analysis system for A-share, Hong Kong, US, Japan, Korea, and Taiwan markets. Market data, news, and indicators become a daily decision report that is pushed automatically.

• Reports cover a conclusion, score, trend, buy and sell levels, risk alerts, and an action checklist.
• Results go to WeCom, Feishu, Telegram, Discord, Slack, or email, and can run on GitHub Actions, Docker, or a local schedule.
• Multi-turn Q&A uses 15 built-in strategies.

Configure and automate Home Assistant with AI assistants

ha-mcp lets Claude, ChatGPT, and other AI assistants configure and automate Home Assistant. The recommended install is the HA-MCP integration through HACS.

• The server runs in-process inside Home Assistant and works on every install type: OS, Supervised, Container, and Core.
• It needs Home Assistant 2026.8.0 or newer, and setup asks for an administrator access token.
• Since v7.3.0, ha_config_set_yaml has moved to beta.

A team of AI bots in a chat app, a Grok Bot alternative

OpenMausBot is an independent project inspired by Grok Bot. Each bot in the sidebar is a real agent, Claude or Codex running locally, with its own personality, model, cloud computer, and connected apps.

• Bring-your-own-agent and local-first, on the models you already have.
• Available for macOS (Apple silicon and Intel), Windows x64, and Ubuntu 24.04 (beta).
• The project has no cryptocurrency token. Any coin using the Maus name is not affiliated with it.