Akinori YAMADA

herdr. agent multiplexer that lives in your terminal.

headroom. Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 60-95% fewer tokens, same answers. Library, proxy, MCP server.

stop-slop. A skill file for removing AI tells from prose

docs-mcp-server. A local MCP server for searching official PipeCD docs.

helicone. 🧊 Open source LLM observability platform. One line of code to monitor, evaluate, and experiment. YC W23 🍓

awesome-harness-engineering. 🛠️ Awesome tools & guides for harness engineering.

fence. Lightweight, container-free sandbox for running commands with network and filesystem restrictions

sheets. Terminal based spreadsheet tool

termdash. Terminal based dashboard.

claude-code-best-practice. from vibe coding to agentic engineering - practice makes claude perfect

AI-Maturity-Model. A practical framework to assess and guide how engineering teams adopt, integrate, and evolve their use of AI across tooling, practices, governance, and innovation.

shannon. Shannon is an autonomous, white-box AI pentester for web applications and APIs. It analyzes your source code, identifies attack vectors, and executes real exploits to prove vulnerabilities before they reach production.

takt. TAKT Agent Koordination Topology - Define how AI agents coordinate, where humans intervene, and what gets recorded — in YAML

shinkoku. 確定申告自動化 AI エージェントプラグイン — 帳簿管理から e-Tax 入力代行まで

agentregistry. Fast-track AI innovation with a centralized, trusted, curated registry

ccmanager. Coding Agent Session Manager for Claude Code / Gemini CLI / Codex CLI / Cursor Agent / Copilot CLI / Cline CLI / OpenCode / Kimi CLI

Agent-Skills-for-Context-Engineering. A comprehensive collection of Agent Skills for context engineering, multi-agent architectures, and production agent systems. Use when building, optimizing, or debugging agent systems that require effective context management.

CodexBar. Show usage stats for OpenAI Codex and Claude Code, without having to login.

devpod. Codespaces but open-source, client-only and unopinionated: Works with any IDE and lets you use any cloud, kubernetes or just localhost docker.

a11y-specialist-skills. Accessibility specialist skills plugin for Claude Code.

openskills. Universal skills loader for AI coding agents - npm i -g openskills

superpowers. An agentic skills framework & software development methodology that works.

interface-design. Design engineering for Claude Code. Craft, memory, and enforcement for consistent UI.

Claude-Code-Board. Use Claude Code on Kanban WebUI

opencode. The open source coding agent.

awesome-claude-skills. A curated list of awesome Claude Skills, resources, and tools for customizing Claude AI workflows

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

optimal_bvmap. 国土地理院最適化ベクトルタイル

sharepoint-docs-mcp. A Model Context Protocol (MCP) server that provides SharePoint document search functionality. Supports both stdio and HTTP transports. Authentication is supported only via Azure AD certificate-based authentication. Please note that other authentication methods are not supported.

OpenSpec. Spec-driven development (SDD) for AI coding assistants.

jsonschema. JSON schema support for Go programs

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

claude-code-cookbook. A collection of settings to make Claude Code more useful.

conftest. Write tests against structured configuration data using the Open Policy Agent Rego query language

mergo. Mergo: merging Go structs and maps since 2013

amplifier. Shell

Rath. Next generation of automated data exploratory analysis and visualization platform.

kpack. Kubernetes Native Container Build Service

go-sdk. The official Go SDK for Model Context Protocol servers and clients. Maintained in collaboration with Google.

flat. Project flat is the Web, Windows and macOS client of Agora Flat open source classroom.

kecs. KECS (Kubernetes-based ECS Compatible Service) is a standalone service that provides Amazon ECS compatible APIs running on Kubernetes.

cfft. cfft is a testing tool for CloudFront Functions.

govalid. Up to 45x faster. Auto generate type-safe validation code for structs based on markers.

tosage. A Go application that tracks Claude Code and Cursor token usage and sends metrics to Prometheus. It can run in CLI mode (outputs today's token count) or daemon mode (system tray application with periodic metrics sending).

mage. a Make/rake-like dev tool using Go

just. 🤖 Just a command runner

jj. A Git-compatible VCS that is both simple and powerful

novu. The open-source communication infrastructure for agents and products

ZeQLplus. Open Source Terminal SQLite Database Browser

claude-task-master. An AI-powered task-management system you can drop into Cursor, Lovable, Windsurf, Roo, and others.

devfiler. Universal Profiling as a desktop app

container. A tool for creating and running Linux containers using lightweight virtual machines on a Mac. It is written in Swift, and optimized for Apple silicon.

container-use. Development environments for coding agents. Enable multiple agents to work safely and independently with your preferred stack.

bubbletea. A powerful little TUI framework 🏗

muffet. Fast website link checker in Go

flog. :tophat: A fake log generator for common log formats

tcell. Tcell is an alternate terminal package, similar in some ways to termbox, but better in others.

tview. Terminal UI library with rich, interactive widgets — written in Golang

mcp-server-pipecd. An MCP Server for PipeCD

okteto. Develop your applications directly in your Kubernetes Cluster

wrkflw. Validate and Run GitHub Actions locally.

vecty. Vecty lets you build responsive and dynamic web frontends in Go using WebAssembly, competing with modern web frameworks like React & VueJS.

browser-agent. Open-source, vision-first browser agent

templ. A language for writing HTML user interfaces in Go.

wazero. wazero: the zero dependency WebAssembly runtime for Go developers

fsnotify. Cross-platform filesystem notifications for Go.

mcp-notion-server. A Model Context Protocol server for connecting Notion to MCP-compatible clients

system-design-101. Explain complex systems using visuals and simple terms. Help you prepare for system design interviews.

open-saas. A 100% free modern JS SaaS boilerplate (React, NodeJS, Prisma). Full-featured: Auth (email, google, github, slack, MS), Email sending, Background jobs, Landing page, Payments (Stripe, Polar.sh), Shadcn UI, S3 file upload. AI-ready with tailored AGENTS.md, skills, and Claude Code plugin. One cmd deploy. Powered by Wasp full-stack framework.

buf-action. Build, format, lint, and check for breaking changes in your Protobuf schemas, and automatically publish to the Buf Schema Registry.

oneterm. Provide secure access and control over all infrastructure

maxun. 🔥 The open-source no-code platform for web scraping, crawling, search and AI data extraction • Turn websites into structured APIs in minutes 🔥

liam. Automatically generates beautiful and easy-to-read ER diagrams from your database.

protocol. OpenFeature Remote Evaluation Protocol

ImageToolbox. 🖼️ Image Toolbox is a powerful app for advanced image manipulation. It offers dozens of features, from basic tools like crop and draw to filters, OCR, and a wide range of image processing options

devin.cursorrules. Magic to turn Cursor/Windsurf as 90% of Devin

infisical. Infisical is the open-source platform for secrets, certificates, and privileged access management.

browser-use. 🌐 Make websites accessible for AI agents. Automate tasks online with ease.

connect-go. The Go implementation of Connect: Protobuf RPC that works.

trailbase. An open, sub-millisecond, single-executable Firebase alternative with type-safe APIs, built-in WebAssembly runtime, realtime subscriptions, auth, and admin UI built on Rust, SQLite & Wasmtime.

otel-tui. A terminal OpenTelemetry viewer inspired by otel-desktop-viewer

sqlchat. Chat-based SQL Client and Editor for the next decade

config-sync. Config Sync - used to sync Git, OCI and Helm charts to your clusters.

wasm-xlsxwriter. Generate Excel files in-browser with WebAssembly.

armada. A multi-cluster batch queuing system for high-throughput workloads on Kubernetes.

prest. PostgreSQL ➕ REST, low-code, simplify and accelerate development, ⚡ instant, realtime, high-performance on any Postgres application, existing or new, MCP server

Applite. User-friendly GUI macOS application for Homebrew Casks

DeskPad. A virtual monitor for screen sharing

datafaker. Generating fake data for the JVM (Java, Kotlin, Groovy) has never been easier!

crawl4ai. 🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper. Don't be shy, join here: https://discord.gg/jP8KfhDhyN

pack. CLI for building apps using Cloud Native Buildpacks

action-docs. Generate docs for GitHub actions

googlesql. GoogleSQL(formerly ZetaSQL) - Analyzer Framework for SQL

vexllm. silence negligible CVE alerts using LLM

pglite. Embeddable Postgres with real-time, reactive bindings.

lemonsqueezy-go. Go library for the Lemon Squeezy API

terratag. Terratag is a CLI tool that enables users of Terraform to automatically create and maintain tags across their entire set of AWS, Azure, and GCP resources

dotenvx. a secure dotenv–from the creator of `dotenv`

registry-proto. BSR's new public API. Currently in development.

java-sdk-contrib. Community contributions for hooks and reference providers