Recently updated open-source projects

yahoo-finance2 is an unofficial JavaScript API for retrieving quotes, charts, historical data, options, company summaries, screeners, and other Yahoo Finance results. Developers can call it as a library, use its command-line interface, or optionally expose the same tools through MCP and the bundled Agent Skill. It supports Node.js, Bun, Deno, and compatible Cloudflare runtimes, but it cannot run directly in a browser because of CORS and cookie constraints. Yahoo does not guarantee API availability or consistency.

yt-dlp GUI wraps yt-dlp in a desktop app for Windows, macOS, and Linux, letting users paste a link, choose video quality or audio output, and manage downloads without writing commands. It supports playlists, concurrent queues, pause and resume, clip trimming, subtitle extraction, thumbnail saving, and live-chat archiving, plus a browser extension that passes URLs and cookies to the app. The yt-dlp binary is downloaded during setup, and some YouTube formats may also require Deno.

excalidraw-skill converts a written description into an editable `.excalidraw` scene and can export the result as PNG or SVG. It includes layout guidance for flowcharts, architecture, sequence diagrams, mind maps, and swimlanes, sizes shapes from their labels, routes connectors, and checks rendered output for clipping or overlap. Export can use the zero-install Kroki service or a local Excalidraw CLI, with no MCP server or background daemon required.

Blockbench is a free model editor focused on low-poly geometry and pixel-art textures. Artists can export models to standard formats for sharing, rendering, 3D printing, or game engines, and use dedicated formats with Minecraft Java and Bedrock-specific features. It is available as both a desktop application and a web app, with JavaScript plugins for extending the editor.

VGMTrans scans video-game files for embedded sequenced music, lets users inspect the data in an interactive hex view, previews playback, and converts supported material to MIDI, SoundFont2, or DLS. It is distributed as a desktop application for Windows, macOS, and Linux and covers formats from arcade, Super Nintendo, Sega Saturn, PlayStation, and other systems. Support quality varies by format.

Social Media Skills provides a coordinated set of workflows for audience context, positioning, editorial calendars, platform strategy, post and thread writing, carousel scripts, visual-platform captions, repurposing, hooks, and performance analysis. It covers LinkedIn, X, Threads, Bluesky, Facebook, Instagram, TikTok, and Pinterest use cases, and skills can be installed together or selectively. With BlackTwist MCP it can publish, schedule, and fetch analytics; without it, the workflows remain advisory.

Install a portable collection that covers read-only PostgreSQL, MySQL, and SQL Server access alongside research, image generation, messaging, text-to-speech, DevOps, and Google Workspace tasks. The skills follow the Agent Skills standard and can be used across Claude Code, Cursor, Codex, Gemini CLI, and other compatible clients. Some integrations need their own service credentials, and the Google Workspace skills require a Workspace account rather than personal Gmail.

CodePilot is a desktop agent client for coding and general assistant work, with configurable model providers, persistent workspace memory, MCP servers, reusable skills, scheduled tasks, and image generation. Telegram, Feishu, Discord, QQ, and WeChat bridges let you send requests from a phone. Claude Code CLI is optional for chat, but required for direct file editing, terminal commands, and Git operations.

Claude_skills_zh-CN reorganizes and translates the Anthropic Skills repository for Chinese-speaking developers while preserving its original structure. It includes localized guidance and examples for documents, spreadsheets, visual design, frontend work, MCP development, and skill creation. Users can read the SKILL.md files to study the patterns, install them in compatible Claude environments, or use the collection as a reference when building internal skills.

Import comic images, PDFs, EPUBs, CBRs, or CBZs into the desktop app, or use its Chromium extension while reading online. Comic Translate detects text, runs OCR, removes the original lettering, translates it, and renders the result back onto the page, with a manual mode for correcting failed detection or cleanup. Prebuilt apps are available for Windows and macOS, while GPU acceleration currently requires running from source.

Product Manager Skills equips Claude Code, Codex, Cursor, and Windsurf with reusable product-management workflows and reference material. It can turn vague requests into measurable problem framing, analyze SaaS health, critique PRDs and roadmaps, pressure-test priorities, support discovery, and coach career transitions. The core is inspectable Markdown for local or repository-based use, not a collaborative web application with approvals, comments, or sharing.

Use this collection to give Agent Skills-compatible coding agents structured workflows for web exploitation, pwn, cryptography, reverse engineering, forensics, OSINT, and other CTF categories. You can install the whole library or work by category, with a bundled setup script for preinstalling and verifying common challenge tools.

OpenCove is a spatial desktop workspace for people who run terminal-based coding agents such as Claude Code and Codex. It places agent sessions, terminals, tasks, notes, and media on one infinite canvas, making parallel work and its surrounding context visible at the same time. Workspaces restore their layout, terminal output, and agent state after restarts, and archived spaces can preserve older contexts. Builds are available for macOS, Windows, and Linux, but most public releases are currently nightly or prerelease, and the Mac app is not signed or notarized.

OpenDirectory packages dozens of agent skills for founders working on go-to-market, growth automation, technical marketing, and related developer tasks. Its terminal browser lets you search by category and install individual skills into runtimes such as Claude Code, Codex, Gemini CLI, OpenClaw, or Hermes. The recommended interactive installer runs through npx and therefore requires Node.js.

MarkFlowy is a cross-platform desktop editor for Markdown and general text files, with both source and WYSIWYG editing modes. Its built-in AI features cover assisted conversations, article translation, and summarization, while the file tree, global search, image handling, themes, and custom shortcuts support everyday writing. The application is still in beta and undergoing a reconstruction phase, so users should expect rough edges and slower release activity.

Superdesign is a product-design skill for coding agents such as Claude Code, Cursor, and Codex. It reads the current interface and code context, gathers style references, establishes a reusable design system, and creates branchable HTML drafts on a design canvas for new pages or redesigns. The complete workflow also requires the Superdesign CLI and a login, and it is separate from the archived legacy VS Code extension.

SkillNet offers a public skill library, Python SDK, CLI, and visual explorer for keyword or semantic search and GitHub installation. It can also create skills from repositories, documents, prompts, or execution traces, evaluate their readiness, and infer relationships between them; public search and downloads are credential-free, while creation, evaluation, and analysis require an OpenAI-compatible endpoint.

ArchiveBox imports URLs, browser history, bookmarks, Pocket, Pinboard, and similar sources, then preserves HTML, JavaScript, PDFs, articles, and media under your control. Archives can be managed through a CLI or web interface, with each collection stored in one data directory. High-fidelity capture relies on tools such as Chrome, wget, and yt-dlp.