François Best

Trajectory. Trajectory is an agent harness session log ingestion library that outputs to a standardised format (or any format you want, like OTEL GenAI spans)

octane. React’s programming model, compiled. The successor to Inferno, carrying its performance-first goal forward:

claude-statusline. One bash script for the Claude Code statusline: dir, branch, model, context window, and 5h / 7d / Fable rate-limit bars.

hark. A simple, beautiful webhook to notification platform.

plannotator. Annotate and review coding agent plans and code diffs visually, share with your team, send feedback to agents with one click.

.dotfiles. TypeScript

canvas-ui. A library of creative canvas components. Real HTML with WebGL effects running over it. React, Vue, Svelte, vanilla.

pi-tasks. A pi extension that brings Claude Code-style task tracking and coordination to pi. Track multi-step work with structured tasks, dependency management, and a persistent visual widget.

pi-subagents. Claude Code like Sub-agents for Pi — parallel execution, live widget, custom agent types, mid-run steering and more ...

transcribe.cpp. ggml speech-to-text inference for 16+ model families

aven. A local-first task manager for power users and agents

workmux. git worktrees + tmux windows for zero-friction parallel dev

sideshow. The missing visual surface companion for agents - generate UI mockups, data visualizations, code explainers, and more

sandbox-sdk. A simple oss SDK for spinning sandboxes with one clean syntax.

destructive_command_guard. The Destructive Command Guard (dcg) is for blocking dangerous git and shell commands from being executed by agents.

davit. A native macOS UI for Apple's platform

videorc. Open-source macOS screen recorder & multistream studio — record in 4K, stream live, publish with AI.

improve. Use your most capable model to audit your codebase and write plans for cheaper models to execute.

hitch. Share your terminal with coding agent in one command. Lightweight shell proxy, written in Rust.

egaki. Generate images & videos in the terminal, for humans & agents. Supports Google, OpenAI, ChatGPT sub, Fal, Replicate, SuperGrok sub, Seedance, Kontext

tsnapi. Library public API snapshot testing for runtime exports and type declarations.

pocketdev. One command to run the AI coding CLI you already pay for (Claude Code, Codex, Cursor, Gemini, Grok, aider) on a Tailscale-only Hetzner box — code from your phone.

WayfinderRouter. Simple CLI tool for deterministic routing of queries between local and hosted LLM models

OpenRA. Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

waku. ⛩️ The minimal React framework

woodshed. Create, run, rate, and iterate on your Claude Skills

ui. Open-source React component library. Polished, composable components for React and Tailwind CSS. Distributed via a shadcn-compatible registry. Never paywalled.

email-sdk. One simple SDK for transactional email across 23 adapters

executor. The missing integration layer for AI agents. Let them call any OpenAPI / MCP / GraphQL / custom js functions in secure environment.

Evil-Buttons. shadcn/ui registry of playful, highly animated button components with evil aesthetics and killing interactions.

yazi. 💥 Blazing fast terminal file manager written in Rust, based on async I/O.

threadlens. Local search for coding-agent sessions — Codex, Claude Code, Cursor, Pi, OMP, Amp, Droid, OpenCode, and custom sources.

shieldcn. Beautiful README badges, inspired by shields.io and styled like shadcn/ui.

jalco-pi-mono. Archived — merged into justinlevinedotme/dotfiles pi/

zod-compiler. Compile Zod schemas into zero-overhead validation functions at build time. Works with Vite, webpack, esbuild, Rollup, etc

nub. The fast all-in-one Node.js toolkit

brepjs. Web CAD library with exact B-Rep geometry

skills. my skills :)

ponytail. Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

ast-grep. ⚡A CLI tool for code structural search, lint and rewriting. Written in Rust

slop-scan. Detect AI code slop patterns in your repo

async-history-stack. Arbitrary change history management in JavaScript.

sem. Semantic version control => entity-level diffs, blame, and impact analysis on top of git. 28 languages via tree-sitter. Built for coding agents.

speech-swift. AI speech toolkit for Apple Silicon — ASR, TTS, speech-to-speech, VAD, and diarization powered by MLX and CoreML

fresh. Terminal based IDE & text editor: easy, powerful and fast

hunk. Review-first terminal diff viewer for agentic coders

blitzrecorder. A native Mac recording studio with an iPhone camera companion. By BlitzReels.

bagel. bagel, a CLI that inventories security-relevant metadata on developer workstations

kiira. Type-check the TypeScript & JavaScript code in your Markdown against your real project — in your editor, the CLI, and CI.

remocn. Production-ready animations, transitions, backgrounds, and scenes for Remotion

skills. Skills for True Dev Warriors.

zentty. A native macOS terminal for agent-driven development, built on Ghostty.

h5i. Auditable workspaces for AI coding agents: sandboxed worktrees, programmable multi-agent orchestration, automated security checks, up to 95% less token waste, and persistent memory.

herdr. the runtime your coding agents live on

ds4. DeepSeek 4 Flash and PRO local inference engine for Metal, CUDA and ROCm

oppi. Swift

flowflow. Voice notes for iPhone and macOS - 100% Rust, Dioxus, local-first (SQLite + LanceDB + RIG)

workbench. Open-source BullMQ dashboard — modern alternative to bull-board. 13 framework adapters, FlowProducer DAGs, schedulers, macOS app, Docker & MCP.

ClickLight. A macOS menu bar app that highlights your clicks for demos, recordings, UX reviews, and better click visibility.

Ghostex. Native Agent CLIs manager for macOS. Ghostty Terminals + Codex App Features/UX = Ghostex! Embedded browser & IDE. Strong agents support.

pi. AI agent toolkit: unified LLM API, agent loop, TUI, coding agent CLI

hyperframes. Write HTML. Render video. Built for agents.

gagen. Generate complex GitHub Actions YAML files using a declarative API.

emdash. Emdash is the Open-Source Agentic Development Environment (🧡 YC W26). Run multiple coding agents in parallel. Use any provider.

tsz. A performance-first TypeScript checker

into-md. CLI to fetch clean urls as clean markdown for LLMs

inrepo. Vendor the upstream repos directly into your app

repolyze. Analyze a git source code repository for health signals and project vitals

mosh. Mobile Shell

sniffnet. Comfortably monitor your Internet traffic 🕵️‍♂️

cmdcmd. Keyboard-first window switcher for macOS. Press both ⌘ keys to fan windows into a grid of live previews.

obsidian-skills. Agent skills for Obsidian. Teach your agent to use Obsidian CLI and open formats including Markdown, Bases, JSON Canvas.

4elements. 3d test for different AI models

fallow. Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles: unused code, duplication, circular deps, complexity hotspots, architecture boundaries, design-system drift. Optional paid runtime layer (Fallow Runtime): hot-path review and cold-path deletion evidence from real production traffic.

evo. turns your codebase into an autoresearch loop — discovers what to measure, instruments the benchmark, then runs tree search with parallel subagents.

autoresearch. AI agents running research on single-GPU nanochat training automatically

tori-cli. Docker server monitoring without the stack. Metrics, logs, and alerts from your terminal. Single binary, zero exposed ports, SSH-only.

rsc-boundary. Tooling to visualize React Server Components vs Client Components boundaries in Next.js App Router

webclaw. Fast, local-first web content extraction for LLMs. Scrape, crawl, extract structured data — all from Rust. CLI, REST API, and MCP server.

agent-browser. Browser automation CLI for AI agents

aube. A fast Node.js package manager

llama-swap. Reliable model swapping for any local OpenAI/Anthropic compatible server - llama.cpp, vllm, etc

llama.cpp. LLM inference in C/C++

miditui. An interactive terminal app/UI for MIDI composing, mixing, and playback—written in Rust

wterm. A terminal emulator for the web

fetch-extras. Useful utilities for working with Fetch

AeroSpace. AeroSpace is an i3-like tiling window manager for macOS

sandcastle. Orchestrate sandboxed coding agents in TypeScript with sandcastle.run()

Claudoscope. native macOS app that gives you a real-time dashboard for your Claude Code and Cowork sessions, with analytics, conversation history, security hardening, real time secrets detection and project insights.

skills. Personal AI agent skills for Claude Code, Copilot, Codex, Gemini & Cursor — turn a PR or idea into marketing content, technical Slidev presentations, courses, changelogs, and rendered videos.

mesurer. Measure and align everything.

rtk. CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

caveman. 🪨 why use many token when few token do trick — Claude Code skill that cuts 65% of tokens by talking like caveman

typed-channel. TypeScript

nuqs-storybook-adapter. Nuqs v2 adapter compatible with @storybook/nextjs-vite mock router

mngr. CLI for managing coding agents

apfel. The free AI already on your Mac. CLI tool, OpenAI-compatible server, and interactive chat — all on-device via Apple Intelligence. No API keys, no cloud, no downloads.

port-whisperer. A beautiful CLI tool to see what's running on your ports

nono. Sandbox any AI agent in seconds - zero setup, zero latency.

onecli. Open-source credential gateway with a built-in vault. give your AI agents access to services without exposing keys.

claw-code. An agent-managed museum exhibit, built in Rust with Gajae-Code / LazyCodex — developed and maintained with no human intervention.

decoders. Elegant validation library for type-safe input data for TypeScript

difftastic. a structural diff that understands syntax 🟥🟩

openyak. Open-source local-first AI agent for desktop work. No account, no telemetry: use local models with Ollama/Rapid-MLX or bring your own provider key.

cua. Scale computer-use 2.0 with open-source drivers, cross-OS fleets, and benchmarks for training, evaluation, and data generation.

sonar. CLI tool for inspecting and managing services listening on localhost ports

agent-ci. Agent-CI is local GitHub Actions for your agents.

television. A very fast, portable and hackable fuzzy finder.

emailmd. Render markdown into email-safe HTML

emulate. Local API emulation for CI and no-network sandboxes

usecomputer. Fast computer automation CLI for AI agents. Control any desktop with screenshots, clicks, typing, scrolling, and more.

worktrunk. Worktrunk is a CLI for Git worktree management, designed for parallel AI agent workflows

chezmoi. Manage your dotfiles across multiple diverse machines, securely.

spiceflow. Simple API & React framework, fully type safe, OpenAPI, RSC, MCP, type safe client, streaming with SSE

pindrop. A native macOS menu bar dictation app using local speech-to-text with WhisperKit

notchi. notch app for claude code & codex

lazydocker. The lazier way to manage everything docker

cmux. Open source Ghostty-based macOS terminal with vertical tabs and notifications for AI coding agents. Built for multitasking, organization, and programmability.

tui-studio. Visual design tool for building Terminal User Interfaces

agent-safehouse. Sandbox your local AI agents so they can read/write only what they need

codevator. Background sounds that play while Claude Code works and stop when it needs your attention — so the silence doesn't drive you to a “that's what she said” moment.

Scriberr. Self-hosted AI audio transcription

anti-slop. A GitHub action that detects and automatically closes low-quality and AI slop PRs.

fonttrio. Curated font pairing registry for shadcn. Three fonts. One command. Install perfectly configured typography (heading + body + mono) with shadcn add

git-city. Your GitHub profile as a 3D pixel art building in an interactive city

pure-rand. Pure random number generator written in TypeScript

project-review-api. Simple API for the Horde project review

star-to-orc-machine. When you star a repo, it gets added to the Orc Machine

web-haptics. Haptic feedback for the mobile web

llmfit. Hundreds of models & providers. One command to find what runs on your hardware.

lifo. A browser-native operating system. Unix/Linux reimagined where the browser IS the kernel and Web APIs ARE syscalls. 60+ commands, bash-like shell, virtual filesystem, and IndexedDB persistence.

errore. Errors as values for TypeScript. Fully type safe error handling.

opencode-session-search. OpenCode plugin for searching and retrieving session history

chainlink. A CLI issue tracker for AI Agents

zerobrew. A 5-20x faster experimental Homebrew alternative

react-doctor. Your agent writes bad React. This catches it

qmd. mini cli search engine for your docs, knowledge bases, meeting notes, whatever. Tracking current sota approaches while being all local

OpenAgentsControl. AI agent framework for plan-first development workflows with approval-based execution. Multi-language support (TypeScript, Python, Go, Rust) with automatic testing, code review, and validation built for OpenCode

context7. Context7 Platform -- Up-to-date code documentation for LLMs and AI code editors

soundcn. 700+ curated UI sound effects for modern web apps. Browse, preview, and install sounds with a single command. Free and open source

tokscale. 🛰️ Track token usage across AI coding agents from your terminal. 🏅 Global leaderboard with quadrillions of tokens tracked.

frankentui. Minimal, high-performance terminal UI kernel with diff-based rendering, inline mode, and RAII terminal cleanup

gh-vet. GitHub CLI extension for GitHub contribution stats

opencode-quota. OpenCode quota & tokens usage with zero context window pollution. Supports OpenCode Go, Cursor, GitHub Copilot, OpenAl (Plus/Pro), Kimi Code, Alibaba Coding Plan, Chutes Al, Google Antigravity, Z.ai Coding Plan and more.

openusage. Burning through your subscriptions too fast? Paying for stuff you never use? Stop guessing. OpenUsage is free and open source.

mellow-lines. A web app for creating animated videos of code morphing between steps. Paste code snippets, configure syntax highlighting and export smooth token-level transitions as WebM/MP4 videos.

bats-core. Bash Automated Testing System

react-grab. Copy any UI element for your agent

Handy. A free, open source, and extensible speech-to-text application that works completely offline.

openworkflow. Open-source TypeScript framework for building durable, resumable workflows. Supports Node.js and Bun.

Semantic-Anchors. HTML

npmx.dev. a fast, modern browser for the npm registry

skills. Anthony Fu's curated collection of agent skills.

audio-ui. A set of accessible and composable components for building audio interfaces in your React apps. Built on top of shadcn/ui, it's designed for you to copy, paste, and own.

evlog. Digging through logs is not observability. It's hope — wide events, structured errors, TypeScript-first, every runtime.

warcraftcn-ui. A collection of accessible, retro-inspired UI components drawing from classic real-time strategy aesthetics. Built for modern web/apps. Fully open source – copy, paste, customize.

jean. A dev environment for AI agents.

obs-midi-mg. Allows MIDI devices to interact with OBS Studio.

better-context. A better way to get up to date context on libraries/technologies in your projects

genaiscript. DEPRECATED

WebMCP. Early WebMCP proposal / implementation - since evolved and worked on by much more capable folks that develop the web: https://github.com/webmachinelearning/webmcp

openwork. The open-source alternative to Claude Cowork (powered by opencode)

tuna. An audio effects library for the Web Audio API.

clawdio. Web Audio effects using Audio Worklets and Rust + WASM

beans. A CLI-based, flat-file issue tracker for humans and robots. 🤖

guidepup. Screen reader automation library for testing.

justfuckinguseshadcn. Just Fucking Use Shadcn

better-shot. An open-source alternative to CleanShot X for macOS. Capture, edit, and enhance your screenshots with professional quality.

quests. Dev Quests – platform to level up your coding portfolio. Discover web development challenges, filter by difficulty, and master new skills

workspace-connectors. A unified API for Google Workspace - Gmail and Calendar with scoped API keys

tailwindcss. A utility-first CSS framework for rapid UI development.

chatterbox. SoTA open-source TTS

github-creature. An open source project where you summon your EPIC creature card based on your GitHub stats.

open-source-stack. Minimal stack to ship npm packages in CJS/ESM with Typescript

opencode. The open source coding agent.

envin. Type-safe env validation with live previews 🌳

openwhispr. Voice-to-text dictation app with local (Nvidia Parakeet/Whisper) and cloud models (BYOK). Privacy-first and available cross-platform.

happy. Mobile and Web client for Codex and Claude Code, with realtime voice, encryption and fully featured

OmniLens. Monitor, analyze, and optimize your GitHub workflows with comprehensive insights.

vercel-oss-directory. TypeScript

opentui. OpenTUI is a library for building terminal user interfaces (TUIs)

authverse. Authverse Fast modern CLI to generate full auth systems with OAuth Prisma Drizzle better auth and ready-to-use ShadCN UI screens

rkyv. Zero-copy deserialization framework for Rust

Pake. 🤱🏻 Turn any webpage into a desktop app with one command.

Mole. 🐹 Clean, uninstall, analyze, optimize, and monitor your Mac from the terminal.

textarea. A minimalist text editor that lives in URL

moodist. Ambient sounds for focus and calm.

unshield. Tool and library to extract CAB files from InstallShield installers

tinypdf. Minimal PDF creation library. <400 LOC, zero dependencies, makes real PDFs.

gh-dash. A rich terminal UI for GitHub that doesn't break your flow.

notra. Turn Your Work Into Content

sdk. A simple framework for humans Server-first React, running on the Cloudflare platform. Simple to build. Easy to maintain.

fate. fate is a modern data client for React.

typeslayer. you can't hide from TypeSlayer

openscreen. Create stunning demos for free. Open-source, no subscriptions, no watermarks, and free for commercial use. An alternative to Screen Studio.

euro-to-meters. A retro Windows 98 styled web application that converts euros to meters based on the physical dimensions of euro banknotes and coins.

tanstack-table-nuqs. TypeScript

bklit. Open-source Analytics SaaS

ui. A beautiful collection of copy-and-paste widgets for your next project.

npm.bet. an npm trends visualizer