From Product Hunt

Claude Code gets multi-agent code review, Fish Audio drops an expressive open-source TTS, and a handful of developer tools worth bookmarking.

Claude Code Review — Multi-agent code review for PRs Anthropic's multi-agent code review system for GitHub PRs. Spawns Claude Code agents that analyze PRs with full repo context. Part of the Claude Code ecosystem for AI-assisted development workflows.
▲ 406 · anthropic.com
Fish Audio S2 — Expressive open-source TTS 4B-parameter dual-autoregressive TTS trained on 10M+ hours across 50 languages. Voice cloning from 10-30s samples, fine-grained control via natural language instructions like [whisper in small voice]. 100ms time-to-first-audio on H200.
▲ 289 · fish.audio
Agent Skills — Directory of 110K+ AI agent skills Browse and install extensible skills for Claude Code, Cursor, Copilot, Windsurf, Zed, and 20+ AI coding tools. Each skill includes security audits and trust scores. Install via /learn command. Free.
▲ 163 · agentskill.sh
Sonarly — AI that triages alerts and fixes prod Autonomously triages production alerts and fixes bugs with full context of your system. Developer-focused incident resolution tool. Free tier available.
▲ 139 · sonarly.dev
Refero MCP — Design references for AI coding agents MCP server that gives AI agents access to a curated library of real product interfaces and UX patterns. Helps agents "study before they build." Works with Claude Code, Cursor, Windsurf. Requires Refero Pro.
▲ 117 · refero.design
MacQuit — Quit all Mac apps in one click macOS menu bar utility to quit all running apps at once. Simple, focused utility. $4.99 one-time purchase.
▲ 112 · macquit.app
Brutal Reader — Strips webpages to just the article Chrome extension that strips webpages down to article text. Open-source minimalist reader mode alternative.
▲ 91 · Chrome Web Store
From Reddit

Yann LeCun left Meta to start a $1B AI lab, Karpathy's AI agent autonomously optimized its own training, and GPT-5.4 may have cracked an open math problem.

Update: Karpathy's autoresearch agent ran autonomously for 2 days Following yesterday's coverage of autoresearch, Karpathy's AI agent ran for 2 days on nanochat, found 20 optimizations, and made training ~11% faster. First AI to fully execute a complete research loop autonomously.
GPT-5.4 Pro may have solved an open FrontierMath problem GPT-5.4 Pro reportedly solved an EpochAI FrontierMath open problem — potentially the first AI to contribute to unsolved mathematical research. Awaiting verification from the problem author.
Meta acquires Moltbook, the AI agent social network Meta acquired Moltbook, which hosts ~3M AI agents in a social network. Community skeptical of Meta's intentions. Wiz flagged a security flaw exposing 1M+ agent credentials.
Duplicating ~7 middle layers in Qwen2-72B took #1 on Open LLM Leaderboard Simply duplicating middle transformer layers (no weight changes) topped the leaderboard. Top 4 models still use this technique 2 years later. Done on 2x 4090s. Suggests pretraining carves discrete functional "reasoning circuits."

Quick hits from the AI world.

Amazon wins court order to block Perplexity's AI shopping agent Sets legal precedent for AI agents in e-commerce vs basic web scraping.
Amazon requires senior engineer sign-off on all AI-assisted code After outages from AI-generated code, Amazon mandates senior review before deployment.
From Reddit

ComfyUI gets a huge accessibility upgrade, Nvidia brings real-time 4K upscaling to ComfyUI, and LTX-2.3 gets consumer-friendly GGUFs.

Nvidia RTX Video Super Resolution node for ComfyUI Official Nvidia RTX nodes for ComfyUI including real-time 4K video upscaling (30x faster than local alternatives) and NVFP4/FP8 model quantization variants. RTX GPU required. Available via ComfyUI Manager.
LTX-2.3 Dynamic GGUFs by Unsloth Unsloth's Dynamic 2.0 GGUF quantization of LTX-2.3 video+audio model. Important layers upcasted for best quality. Makes LTX-2.3 accessible on consumer hardware. 31K+ downloads already.
From Reddit

A vim-driven dual-pane file manager, a lightweight Google Drive sync, keyboard layers without custom hardware, and FancyZones for Mac.

Captain's Deck — Dual-pane file manager with Vim navigation macOS file manager with vim-style hjkl navigation, built-in terminal synced to current directory, SFTP/FTP/S3 remote connections, and Spotlight-fast search with content grep. Free trial, then a one-time purchase.
GoogleDriveSync — Lightweight native Google Drive sync Open-source macOS menu bar app for Google Drive sync. ~80MB vs Google's official 800MB app. Multi-account support with rclone-based filtering. Handles volume remounts gracefully.
Holdtap — QMK/ZMK keyboard layers on any Mac keyboard Hold keys to activate layers, alternate characters, and shortcuts on your MacBook or Magic Keyboard. No custom hardware needed. Runs locally.
MacsyZones v2.2 — FancyZones for macOS Open-source window management with custom grid layouts, draw-to-snap, and per-workspace zones. Free.