Links
AddCoding Agent Harness.
The next generation coding agent harness to raise the skill ceiling. Built for multi-session workflows, infinite customizability, and performance.
AI agent rules / skills distilled from software engineering books. Inspired by Clean Code, Refactoring, DDD, Clean Architecture and DDIA programming books.
Markdown rule sets for coding agents. Use mini or full as focused skills when a task needs a book's decision pressure, and keep nano for tiny always-on context.
Claude Code skill that produces a thorough, file-cited tech debt audit of an entire codebase
I spend time investigating a non-existing bug today because I misunderstood a USB term. So I made myself a cheat sheet. Maybe it will save time to someone.
The headless browser for AI agents and web scraping. Lightweight, stealthy, and built in Rust.
Obscura is a headless browser engine written in Rust, built for web scraping and AI agent automation. It runs real JavaScript via V8, supports the Chrome DevTools Protocol, and acts as a drop-in replacement for headless Chrome with Puppeteer and Playwright.
Nev is a keyboard focused GUI and terminal text editor.
Nev is a fast, keyboard-driven text editor written in Nim that runs in the terminal and in a GUI. It combines ideas from Neovim, Helix, and Zed with builtin developer tools like Git integration, Treesitter syntax highlighting, LSP support, DAP debugging, and WASM plugins.
Perfect Green Screen Keys.
When you film something against a green screen, the edges of your subject inevitably blend with the green background. This creates pixels that are a mix of your subject's color and the green screen's color. Traditional keyers struggle to untangle these colors, forcing you to spend hours building complex edge mattes or manually rotoscoping. Even modern "AI Roto" solutions typically output a harsh binary mask, completely destroying the delicate, semi-transparent pixels needed for a realistic composite.
A HTML5/JavaScript multiplayer game experiment.
Related contents:
Free IP Geolocation Database. Use it anywhere.
An MMDB-compatible IP Geolocation database with ASN, country, and continent data. Free to use. No license keys required. Updated every day.
Related contents:
DirPlayer is a Shockwave Player emulator written in Rust that aims to make playing old browser games possible on modern browsers.
Related contents:
Lightweight, self-contained Linux® server monitoring tool.
Zero dependencies. No external databases. Single binary. Just deploy and go.
Related contents:
Local HTTPS Domains, Tunnels & Dev Environment Toolkit. Give your localhost a local or public URL.
Turn localhost:3000 into https://app.test with path routing, HTTPS, HMR support, or get a public url without deployment.
Related contents:
Free web-based motion design and video editor.
It is free, no paywall, without sign-up, browser based, just load it in Chrome or Edge the editing is done locally, your files don’t get uploaded supports up to 4K resolution, and it's not bloated with AI stuff.
Related contents:
Declarative GUI for Rust, C++, JavaScript & Python.
Slint is an open-source declarative GUI toolkit to build native user interfaces for Rust, C++, JavaScript, or Python apps. Write your UI once in .slint, a simple markup language. Connect it to business logic written in Rust, C++, JavaScript, or Python.
Related contents:
GTFOBins is a curated list of Unix-like executables that can be used to bypass local security restrictions in misconfigured systems.
The project collects legitimate functions of Unix-like executables that can be abused to get the f**k break out restricted shells, escalate or maintain elevated privileges, transfer files, spawn bind and reverse shells, and facilitate other post-exploitation tasks.
Related contents:
SNES Emulator.
The two original developers of ZSNES are finally back together! Introducing SUPER ZSNES! Re-written completely from scratch, this GPU-powered SNES emulator is here to bring you the following: some of what is familiar, some of what's new, and then some of what goes beyond.
Related contents:
Get to inbox zero faster. Stop managing email. Let your inbox manage itself.
NeatMail organizes priority emails and drafts replies in Gmail and Outlook, so you can clear your inbox in less time.
Related contents:
Multi-agent AI orchestration for Claude Code.
Orchestrate 100+ specialized AI agents across machines, teams, and trust boundaries. Ruflo adds coordinated swarms, self-learning memory, federated comms, and enterprise security to Claude Code — so agents don't just run, they collaborate.
🌊 The leading agent orchestration platform for Claude. Deploy intelligent multi-agent swarms, coordinate autonomous workflows, and build conversational AI systems. Features enterprise-grade architecture, self-learning swarm intelligence, RAG integration, and native Claude Code / Codex Integration
A toolkit for spec-driven software development. Stop writing prompts, start writing specs. Ship better quality software and minimize slop.
Native desktop automation CLI for AI agents. Control any application through OS accessibility trees with structured JSON output and deterministic element refs.
agent-desktop is a native desktop automation CLI designed for AI agents, built with Rust. It gives structured access to any application through OS accessibility trees — no screenshots, no pixel matching, no browser required.
Design with the agent already on your laptop.
🎨 Local-first, open-source alternative to Anthropic's Claude Design. ⚡ 19 Skills · ✨ 71 brand-grade Design Systems 🖼 Generate web · desktop · mobile prototypes · slides · images · videos · HyperFrames 📦 Sandboxed preview · HTML/PDF/PPTX/MP4 export 🤖 Runs on Claude Code / Codex / Cursor / Gemini / OpenCode / Qwen / Copilot / Hermes / Kimi CLI.
Related contents:
Other tools show you a hairball. We teach you the codebase. Graphs that teach the codebase.
Graphs that teach > graphs that impress. Turn any code, or knowledge base (Karpathy LLM wiki), into an interactive knowledge graph you can explore, search, and ask questions about. Works with Claude Code, Codex, Cursor, Copilot, Gemini CLI, and more.
The Agent Harness Framework. The sandbox agent framework.
Not another SDK. Build powerful, autonomous agents with Flue's programmable TypeScript harness. Write once, deploy anywhere.
Flue is a TypeScript framework for building the next generation of agents, designed around a built-in agent harness. It's like Claude Code, but 100% headless and programmable. There's no baked-in assumption like requiring a human operator to function. No TUI. No GUI. Just TypeScript.
Related contents:
Open-source agent firewall for MCP and AI agent egress
Pipelock enforces MCP, HTTP, and WebSocket egress at the network boundary and produces verifiable audit evidence for every inspected action.
Related contents:
Save 98% of your AI coding agent's context window.
Context window optimization for AI coding agents. Sandboxes tool output, 98% reduction. 15 platforms
An open source template for building cloud agents.
Spawn coding agents that run infinitely in the cloud. Powered by AI SDK, Gateway, Sandbox, and Workflow SDK.
Paramiko is a pure-Python implementation of the SSHv2 protocol, providing both client and server functionality. It provides the foundation for the high-level SSH library Fabric, which is what we recommend you use for common client use-cases such as running remote shell commands or transferring files.
Related contents:
Rustinel is an open-source endpoint detection project for Windows and Linux.
It collects native host telemetry using ETW on Windows and eBPF on Linux, normalizes events into a shared model, evaluates Sigma, YARA, and IOC detections, and writes alerts as ECS NDJSON.
Rustinel is designed for blue teams, detection engineers, researchers, and anyone who wants a transparent endpoint detection engine they can inspect, run, test, and extend.
A Unified Virtual Filesystem Workspace for AI Agents.
A virtualization layer where AI agents reach every backend through one filesystem and bash.
The slide framework built for agents.
A React-first slide framework authored by AI agents. Every page is arbitrary code on a 1920×1080 canvas— versioned, reviewable, yours.
The npx serve of Apple Simulators.
Host your simulator for use with Agent tools like Codex, Cursor, or Claude Desktop — locally, over your LAN, or host on a remote mac and tunnel anywhere.
serve-sim spawns a small Swift helper that captures the simulator's framebuffer via simctl io, exposes it as an MJPEG stream + WebSocket control channel, and serves a React preview UI on top. It works with any booted iOS Simulator — no Xcode plugin, no instrumentation in your app.
Build a workspace for work that unfolds over time. The Computer for You and Your Agent.
Describe one long-running job. Download holaOS, kick it off in seconds, and a workspace builds itself — with goals, context, rules, and a next run.
URL to markdown for agents.
Turn websites into optimized, low token output to supercharge your context. Works with every agent.
A collection of agent skills for CAD, robotics and hardware design.
Bring any AI model into your terminal.
A fully decentralized fork of Warp. Six native AI protocols, third-party CLI agents as first-class Blocks, a built-in SSH + tmux host manager. Every credential, conversation and key stays on your machine.
A simple Markdown viewer for reading .md files.
A native macOS app for reading Markdown.
Know what your USB-C cable can really do. macOS menu bar app that tells you, in plain English, what each USB-C cable plugged into your Mac can actually do .
WhatCable explains cable speed, charging limits, e-marker data, and connected devices in plain English. No more guessing why a cable charges slow or refuses to drive your display.
Related contents:
The library for faithful browser automation. High-fidelity fingerprinting for Bun, engineered for consistency and transparency.
mochi.js is a Bun-native, raw-CDP browser automation framework. Pass a seed and a profile; get a relationally-coherent fingerprint that survives a getParameter(0x9245) probe. JIT-friendly inject payload, Chromium-native fetch (real Chrome JA4 by definition), behavioral synth on top of Bezier+Fitts. Leaves no crumbs.
#1 Persistent memory for AI coding agents based on real-world benchmarks.
Your coding agent remembers everything. No more re-explaining. Built on iii engine Persistent memory for Claude Code, Cursor, Gemini CLI, Codex CLI, Hermes, OpenClaw, pi, OpenCode, and any MCP client.
Advanced DNS tunneling VPN for censorship bypass, optimized beyond DNSTT and SlipStream with low-overhead ARQ, resolver load balancing, high packet-loss stability and speed.
MasterDnsVPN is a scientific and research-oriented project for carrying TCP traffic through DNS queries and responses. In broad goal, it is similar to projects such as DNSTT or SlipStream, but it follows a fundamentally different structure and implementation approach. This system is designed around compatibility with many resolver behaviors and harsh network conditions, with the goal of preserving the highest possible stability and data delivery even in the worst cases.
A file tree rendering library
@pierre/trees is an open source file tree rendering library. It's built for performance and flexibility, is super customizable, and comes packed with features.
A lightweight, vanilla JS, open source BYOK (Bring Your Own Key) clone of the Google Antigravity UI. It currently features a live xterm.js terminal with direct local file system sync and a sidebar agent capable of running commands and editing files. Built in pure HTML/CSS/JS for maximum speed and zero installation.
Deepsec is a security harness for finding vulnerabilities in your codebase powered by coding agents.
deepsec an agent-powered vulnerability scanner that you can run in your own infrastructure, optimized to perform on-demand review of all code in existing large-scale repos.
Related contents:
Authenticated Email for AI Agents. Give your agent an email address. In under two minutes.
Anyone can send an email, so your agent should have one. No mail server. No public URL. Free.
Authenticated email gateway for AI agents — SPF/DKIM verified inbound, HMAC-signed delivery, webhook + WebSocket fan-out, CLI + SDKs
Visual Workflow Builder for AI Coding Agents. State machine guardrails for AI agents.
State machine guardrails that control which tools your AI agent can use in each phase. Define a workflow once, enforce it across Claude Code, Codex, Cursor, opencode, and Pi.
Project Hummingbird builds a collection of minimal, hardened, and secure container images with a significantly reduced attack surface. This strong focus on security combined with a highly automated update workflow aims to minimize CVE counts, targeting near-zero vulnerabilities. All images support amd64 and arm64 architectures.
Related contents:
Version Control for AI agent activity. Track what your agent did, which prompt wrote each line, and inspect any step.
Undo, blame, checkout, and replay AI coding sessions locally. Regent captures every agent action so you stay in control.
TreeTrek is a free, open-source, responsive, optimized, authentication- and dependency-free PHP web application for browsing raw Git repositories in either a self-hosted or shared host environment. It is a human-guided, AI-implemented, greenfield implementation having zero command execution functions.
See Where Your AI Coding Tokens Go! Interactive TUI dashboard for Claude Code, Codex, and Cursor cost observability.
Track usage, cost, and performance across 18 AI coding tools. Break down spending by model, project, and provider.
An agent skill that turns complex terminal output into styled HTML pages you actually want to read.
Agent skill that generates rich HTML pages or slide decks for diagrams, diff reviews, plan audits, data tables, and project recaps.
Ask your agent to explain a system architecture, review a diff, or compare requirements against a plan. Instead of ASCII art and box-drawing tables, it generates a self-contained HTML page and opens it in your browser.
A collection of notebooks/recipes showcasing some fun and effective ways of using Claude.
The Claude Cookbooks provide code and guides designed to help developers build with Claude, offering copy-able code snippets that you can easily integrate into your own projects.
20 questions from easy to hard to test your RGB knowledge. How far will you go?
Production-grade engineering skills for AI coding agents.
Skills encode the workflows, quality gates, and best practices that senior engineers use when building software. These ones are packaged so AI agents follow them consistently across every phase of development.