MCP

Show HN: Reverse-engineering web apps into agent tools

로그인된 웹 앱의 API 호출을 브라우저에서 감시해 자동으로 MCP 도구로 변환하는 에이전트를 만들었다. 소스 코드나 공식 API 문서 없이도 Jira, Spotify 같은 서비스에 AI 어시스턴트를 붙일 수 있다.

Show HN: FableCut – A browser video editor AI agents can drive (zero deps)

타임라인 전체를 JSON 파일 하나로 표현하고 MCP/REST로 AI 에이전트가 직접 편집할 수 있는 브라우저 비디오 에디터로, Claude 같은 AI가 프롬프트 하나로 영상을 자동 컷편집하고 결과를 실시간으로 UI에 반영해준다.

Show HN: Microsoft releases Flint, a visualization language for AI agents

Microsoft가 LLM/AI 에이전트가 차트를 쉽게 생성할 수 있도록 설계된 고수준 시각화 DSL(도메인 특화 언어) Flint를 오픈소스로 공개했다. 에이전트가 복잡한 시각적 세부사항 대신 의미론적 명세만 다루면 되도록 추상화 계층을 제공하는 게 핵심이다.

Geosql: A Claude/Codex skill for geospatial data

PostGIS, BigQuery, Snowflake 등에서 지리공간 데이터를 다룰 때 Claude/Codex/GitHub Copilot에 설치해서 SQL 생성과 지도 렌더링까지 자동화해주는 오픈소스 Skill이다.

GitLost: We Tricked GitHub's AI Agent into Leaking Private Repos

Noma Security 연구팀이 GitHub의 새 AI 에이전트 워크플로우에서 Prompt Injection 취약점을 발견했고, 인증 없이 공개 이슈 하나만으로 조직 내 private 저장소 내용을 외부에 노출시키는 데 성공했다.

Show HN: Rowboat – Open-source, local-first alternative to Claude Desktop

이메일, 미팅, Slack, 코드 등 업무 데이터를 로컬 지식 그래프로 인덱싱하고 백그라운드 에이전트로 자동화해주는 오픈소스 데스크톱 AI 비서 앱이다. Claude Desktop처럼 쓰되 훨씬 더 풍부한 업무 컨텍스트와 자체 작업 화면을 제공한다는 점에서 주목할 만하다.

OfficeCLI: Office suite for AI agents to read and edit Microsoft Office files

AI 에이전트가 Microsoft Office 파일을 읽고 편집할 수 있도록 만들어진 오픈소스 CLI 도구로, Office 설치 없이 단일 바이너리만으로 동작한다.

OpenWiki: CLI that writes and maintains agent documentation for your codebase

LangChain이 만든 CLI 도구로, AI 에이전트가 코드베이스를 이해하는 데 필요한 문서를 자동으로 생성하고 최신 상태로 유지해준다. 코딩 에이전트(Copilot, Claude 등)의 컨텍스트 품질을 높이고 싶은 개발자에게 유용하다.

Show HN: OpenKnowledge – open source AI-first alternative to Obsidian/Notion

Git 기반 동기화와 Claude/Codex/Cursor 연동을 내장한 로컬 우선 마크다운 에디터로, AI 에이전트의 두 번째 뇌(LLM Wiki)로 활용할 수 있는 오픈소스 도구다.

HyperTool: Beyond Step-Wise Tool Calls for Tool-Augmented Agents

여러 MCP 툴 호출을 코드 블록 하나로 묶어 LLM 에이전트의 컨텍스트 낭비와 추론 단절을 동시에 해결하는 기법

MTG Bench: Testing how well LLMs can play Magic

카드 게임 MTG의 규칙 준수 능력으로 LLM의 복잡한 규칙 추론 능력을 측정하는 독창적인 벤치마크로, gpt-5.5가 95.4점으로 1위를 차지했다.

Apache Burr: Build reliable AI agents and applications

LangChain 같은 복잡한 프레임워크에 지친 개발자들을 위해 순수 Python으로 AI 에이전트와 상태 머신을 만들 수 있는 Apache 인큐베이팅 프레임워크다. 상태 관리, 관측성, Human-in-the-Loop 등을 DSL 없이 제공한다는 점이 특징이다.

Show HN: Claw Patrol, a security firewall for agents

AI 에이전트가 실행하는 SQL, kubectl, HTTP 요청을 프록시에서 가로채 HCL 규칙으로 허용/차단/사람 승인 요청을 할 수 있는 오픈소스 보안 게이트웨이. 에이전트가 프로덕션 환경에서 위험한 작업을 실행하기 전에 제어할 수 있어 중요하다.

Ask HN: What are tools you have made for yourself since the advent of AI?

Hacker News 커뮤니티에서 AI를 활용해 개발자들이 직접 만들어 쓰는 개인 도구들을 공유한 스레드로, '하이퍼-퍼스널 소프트웨어' 트렌드를 잘 보여준다.

Collaborative Human-Agent Protocol (CHAP)

AI 에이전트와 사람이 함께 일할 때 '누가, 무엇을, 왜 결정했는지'를 표준화된 방식으로 기록하고 감사할 수 있게 해주는 오픈 프로토콜.

Show HN: Paseo – Beautiful open-source coding agent interface

Claude Code, Codex, GitHub Copilot 등 여러 코딩 에이전트를 하나의 UI로 제어하는 오픈소스 프로젝트로, 로컬 데몬 방식으로 자기 머신에서 실행하면서 모바일에서도 접근할 수 있다.

Show HN: Ktx – Open-source executable context layer for data agents

AI 에이전트가 회사 데이터 웨어하우스를 정확하게 쿼리할 수 있도록 시맨틱 레이어, 메모리, 비즈니스 지식을 자동으로 구축해주는 오픈소스 도구다. 기존 에이전트가 매번 웨어하우스를 재탐색하거나 잘못된 메트릭 로직을 임의로 만들어내는 문제를 해결한다.

Claude Code as a Daily Driver: Claude.md, Skills, Subagents, Plugins, and MCPs

Claude Code를 터미널 AI 코딩 도구로 제대로 쓰기 위한 Claude.md 설정, 서브에이전트, 플러그인, MCP 연동 실전 가이드

HarnessAPI: A Skill-First Framework for Unified Streaming APIs and MCP Tools

FastAPI HTTP 엔드포인트와 MCP 도구를 하나의 폴더에서 자동으로 동시에 만들어주는 Python 프레임워크

Launch HN: Runtime (YC P26) – Sandboxed coding agents for everyone on a team

엔지니어링팀뿐 아니라 마케팅, 영업, 지원팀까지 누구나 샌드박스 환경에서 coding agent를 안전하게 쓸 수 있게 해주는 인프라 플랫폼으로, YC P26 배치 스타트업이 런치했다.

Show HN: Semble – Code search for agents that uses 98% fewer tokens than grep

AI 에이전트가 코드베이스를 탐색할 때 grep+파일 읽기 대신 자연어로 관련 코드 스니펫만 뽑아주는 검색 라이브러리로, 토큰 사용량을 약 98% 줄여준다.

Principles for agent-native CLIs

AI 에이전트가 CLI 도구를 더 잘 사용할 수 있도록 설계하는 원칙들을 정리한 글로, 에이전트가 CLI를 도구로 활용하는 빈도가 높아지면서 이 설계 방식이 실용적으로 중요해지고 있다.

Agent-harness-kit scaffolding for multi-agent workflows (MCP, provider-agnostic)

여러 AI 에이전트가 서로 역할을 나눠 협업할 수 있도록 조율하는 scaffolding 도구로, Vite처럼 설정 없이 빠르게 멀티 에이전트 파이프라인을 구성할 수 있다.

Show HN: Airbyte Agents – context for agents across multiple data sources

Airbyte가 Slack, Salesforce, Linear 등 여러 SaaS 시스템의 데이터를 미리 인덱싱해서 Agent가 API를 일일이 뒤지지 않아도 되는 Context Store를 출시했다. 기존 MCP 방식보다 토큰을 최대 90%까지 줄이는 효과를 확인했다.

Letting AI play my game – building an agentic test harness to help play-testing

IndieGameAgent automatically playtests games using an LLM, solving a QA bottleneck for solo developers.

Show HN: A Karpathy-style LLM wiki your agents maintain (Markdown and Git)

WUPHF builds a shared knowledge base using a Git-based Markdown Wiki, enabling multiple AI agents—including Claude and Codex—to autonomously divide and execute tasks.

Show HN: Atomic – Local-first, AI-augmented personal knowledge base

Atomic builds a self-hosted, open-source personal knowledge graph app that automatically embeds, tags, and links notes, web clips, and RSS feeds—supporting semantic search, LLM-powered wiki synthesis, and MCP integration.

Anthropic's Claude Desktop App Installs Undisclosed Native Messaging Bridge

Anthropic’s Claude Desktop app installs a Native Messaging Bridge alongside the application, enabling browser and local app communication without explicit user consent, sparking debate within the community.

Tool Attention Is All You Need: Dynamic Tool Gating and Lazy Schema Loading for Eliminating the MCP/Tools Tax in Scalable Agentic Workflows

Tool Attention cuts token usage by 95% in MCP agents by dynamically filtering tool schemas based on user intent.

Bitwarden CLI compromised in ongoing Checkmarx supply chain campaign

Bitwarden CLI npm package delivers malware via GitHub Actions, stealing user credentials.

Show HN: SPICE simulation → oscilloscope → verification with Claude Code

This is an experimental case demonstrating that connecting a SPICE simulator and a real oscilloscope to Claude Code via an MCP server allows for creating a feedback loop where AI directly analyzes and verifies simulation results and actual waveform data.

MCPThreatHive: Automated Threat Intelligence for Model Context Protocol Ecosystems

Open-source Threat Intelligence platform that automatically collects, classifies, and visualizes security threats for AI Agents based on MCP.

Show HN: Kontext CLI – Credential broker for AI coding agents in Go

This open-source CLI tool securely injects short-lived tokens into AI coding agents when accessing external services like GitHub, Stripe, and databases, avoiding the exposure of long-term API keys. It's gaining attention as a replacement for the risky practice of copy-pasting keys into .env files.

GAIA – Open-source framework for building AI agents that run on local hardware

AMD has released GAIA, a Python/C++ framework that allows AI Agents to run on local PCs without the cloud. This approach solves privacy and latency issues, but is also criticized for the realistic limitations of the ROCm ecosystem.

ClawGuard: A Runtime Security Framework for Tool-Augmented LLM Agents Against Indirect Prompt Injection

A runtime security layer that blocks malicious commands based on rules whenever an LLM agent receives results from external tools.

Show HN: Claudraband – Claude Code for the Power User

Claudraband is a CLI/library tool that wraps Claude Code TUI, allowing you to maintain sessions and control it headlessly via an HTTP daemon or ACP server. It's worth paying attention to for developers who want to integrate Claude Code into automated workflows.

Show HN: CSS Studio. Design by hand, code by agent

A design tool where visually editing CSS directly in the browser allows an AI Agent via MCP to modify the actual codebase, enabling a WYSIWYG workflow regardless of the framework.

Show HN: Marimo pair – Reactive Python notebooks as environments for agents

This is an open-source tool that allows you to directly drop-in an AI agent into a running Marimo notebook session, using the notebook's reactive execution state itself as the agent's working memory.

Google open-sources experimental agent orchestration testbed Scion

Google has released Scion, an open-source testbed for experimenting with and tuning multi-agent systems. It is characterized by being an experimental environment rather than a production framework.

Show HN: Hippo, biologically inspired memory for AI agents

Hippo is an open-source memory layer that allows you to share memories across sessions between various AI agent tools such as Claude Code, Cursor, and Codex. It implements the brain's mechanisms of memory decay, retrieval strengthening, and consolidation in code.

Switched from MCPs to CLIs for Claude Code and honestly never going back

This post shares an experience of switching from MCP (Model Context Protocol) to CLI tools in the Claude Code environment, but the original content is inaccessible due to network restrictions.

How are people using Claude as a personal assistant (Slack + Outlook + To-Do)? ADHD-friendly setup help 🙏

This post shares various working setups, shared in the comments, in response to a question about a user with ADHD wanting to create a 'second brain' integrating Slack, Outlook, Calendar, and to-do lists centered around Claude.

Show HN: Baton – A desktop app for developing with AI agents

A desktop app that lets you run multiple AI coding agents (Claude Code, Gemini CLI, etc.) simultaneously in separate git worktrees and monitor them all in one place — ideal for developers who want to split work by feature and develop in parallel.

Claude Code Unpacked : A visual guide

An unofficial visual guide analyzing the leaked Claude Code source code, covering the agent loop, 50+ tools, and undisclosed features. A great reference for developers who want to understand how Claude Code works internally.

I wish Claude just knew how I work without me explaining - so I made something that quietly observes me, learns and teaches it. Open source

A Mac app that automatically creates Skills by observing your actual work instead of repeatedly entering the same context for each Claude Code session.

Learn Claude Code by doing, not reading

An interactive Claude Code learning platform featuring a browser-based terminal simulator, Config Builder, quizzes, and more — letting you practice core Claude Code features without any installation or API key.

Show HN: Coasts – Containerized Hosts for Agents

A CLI tool that resolves port conflicts and environment interference issues when running multiple AI coding agents simultaneously, using Docker-based isolated containers. Combined with git worktree, it enables parallel execution of N independent development environments on a single machine.

Anatomy of the .claude/ folder

A detailed guide explaining the structure of the .claude/ folder—Claude Code's core configuration directory—and the role of each file within it, providing practical setup instructions for developers looking to effectively use Claude at the team level.

Giving Claude access to my MacBook / macOS

A post about giving Claude AI access to a macOS environment, sharing real-world use cases for integrating a local computer with AI.

Show HN: Optio – Orchestrate AI coding agents in K8s to go from ticket to PR

A Kubernetes-based workflow automation tool where an AI agent writes code from GitHub Issues or Linear tickets, automatically fixes CI failures, incorporates review comments, and merges PRs — all without human intervention. It stands out for fully automating the entire ticket-to-PR cycle.

Claude Code: 6 Github repositories to 10x Your Next Project

A post introducing 6 GitHub repositories that boost Claude Code productivity based on real-world usage, covering memory management, UI generation, workflow automation, and other practical tools at a glance.

Claude Code Cheat Sheet

A cheat sheet for developers who use Claude Code daily but keep forgetting commands — covering everything from keyboard shortcuts to MCP configuration, memory management, and CLI flags, on one page. With auto-update to always stay current.

Claude can now use your computer

Anthropic added direct computer control to Claude. It can now open apps, browse the web, and fill out spreadsheets — handling real desktop tasks on your behalf.

MCP servers I use every single day. What's in your stack?

A dev installed 15 MCP servers for Claude Code, then trimmed down to 6 after 3 months of real use. A practical guide to which MCPs actually deliver value and which are just noise.

I'm a PhD student in AI and I built a 10-agent Obsidian crew because my brain couldn't keep up with my life anymore

An AI PhD student built a 10-agent Obsidian crew system to manage their own cognitive overload — shared openly for community feedback.

Trojan's Whisper: Stealthy Manipulation of OpenClaw through Injected Bootstrapped Guidance

Exploiting AI coding agents' plugin (skill) systems by planting malicious guides disguised as 'best practices' — leading agents to misinterpret user requests and execute credential theft, file deletion, and more.

New in Claude Code: Telegram and Discord remote control

Claude Code Channels — a new feature letting you control Claude Code sessions from your phone via Telegram or Discord. Direct work and approve requests without being at your terminal.

Most used claude code development workflows

A curated GitHub repo collecting real-world Claude Code development workflow best practices.

Prompt Injecting Contributing.md

An open-source repo maintainer added a line to CONTRIBUTING.md asking bots to self-identify — and discovered that 50-70% of all PRs were AI bot-generated. A real experiment exposing just how serious the bot PR problem has become in the open-source ecosystem.

Pretty sure I’m not using Claude to its full potential - what plugins/connectors are worth it?

A community post asking which MCP servers, browser extensions, and integration tools for Claude are actually worth using — an attempt to collect real-user recommendations.