Hottest Repos
Understand-Anything — 4,721 stars today, 14.7k this week (34.8k total). Turns codebases into interactive knowledge graphs. Second consecutive day at #1. Grew from 30.6k to 34.8k since yesterday. The "code comprehension as infrastructure" thesis has legs.
codegraph — 2,826 stars today, 20.2k this week (27.3k total). Pre-indexed local code knowledge graph. Highest weekly growth rate at 74% — it added 20k stars on a 27k base. Two code-graph tools dominating trending for a third straight day = established category.
academic-research-skills — 10.7k stars this week (22k total). Full academic research pipeline for Claude Code: research, write, review, revise, finalize. Cites real papers, has citation hallucination detection (motivated by Zhao et al. 2026 audit of 111M references). Serious tool, not a wrapper.
ai-engineering-from-scratch — 2,169 stars today, 10k this week (20.3k total). Comprehensive AI engineering curriculum. Same author's agentmemory (18.1k, +5.7k/week) continues surging alongside it.
anthropics/knowledge-work-plugins — 1,698 stars today (16.5k total). Official open-source plugins for Claude Cowork. Accelerated from yesterday's 1,448/day. Anthropic is seeding the knowledge worker plugin ecosystem in the open.
AI & ML
ECC — 194k stars, 1,912/day. The agent harness performance optimization system. Skills, instincts, memory, security layers for Claude Code, Codex, Cursor. At 194k stars it's one of the most-starred AI repos on GitHub. The "meta-layer on top of coding agents" is a massive market.
ViMax — 2,790 stars this week (7.6k total). HKU's agentic video generation: Director + Screenwriter + Producer + Generator all-in-one. Input a concept, it handles scripts, storyboards, character consistency, and final video end-to-end. Addresses the "AI video is just short disconnected clips" problem.
RuView — 6.4k stars this week (66.2k total). Turns commodity WiFi into spatial intelligence, vital sign monitoring, and presence detection — no cameras. Rust + ESP32. "Physical AI" without video is an underexplored vector.
Kronos — 420 stars today (26.4k total). Foundation model for financial market language — models market microstructure directly, not NLP on earnings calls. Still climbing since yesterday.
Anthropic-Cybersecurity-Skills — 871 stars today (9.9k total). 754 structured cybersecurity skills mapped to MITRE ATT&CK, NIST CSF 2.0, D3FEND. Works across 20+ agent platforms. Security-domain skill files = emerging niche.
Developer Tools
taste-skill + stop-slop — 1,440/day (21k) and 547/day (4.8k) respectively. Both are skill files that make AI output less generic. The "anti-slop" movement has its own product category now. Two repos, same thesis, both trending.
CodeWhale — 457 stars today (35k total). DeepSeek v4 terminal coding agent in Rust. The terminal agent race now has entries from Anthropic (Claude Code), OpenAI (Codex), DeepSeek (CodeWhale), and independents (oh-my-pi).
Nango — 859 stars today (8.9k total). Open-source platform connecting products + AI agents with 800+ APIs. Auth, proxy, and TypeScript integration functions. Used by Replit, Ramp, Mercor. Surging because agents need API access at scale.
dotnet/skills — 1,313 stars this week (3.1k total). Microsoft's official .NET/C# skills for AI coding agents. Microsoft joining the "skill files" movement signals enterprise adoption.
gstack — 978 stars today (103k total). Garry Tan's Claude Code setup: 23 opinionated tools as CEO/Designer/Eng Manager/QA. Now past 103k stars. "Celebrity dev setup" keeps growing.
Hidden Gems
dograh — 3.2k stars. Open-source, self-hosted voice AI platform (Vapi/Retell alternative). Visual workflow builder, MCP native, telephony support. BSD-2 licensed, by YC alumni. One Docker command to run. Voice AI infrastructure is still early — this could be the "Supabase of voice."
CADAM — 3.7k stars. Open-source text-to-CAD web app. TypeScript + OpenSCAD + WASM. Describe what you want, get a 3D model. GPL-3.0. Mechanical engineering meets LLMs — tiny niche, huge potential.
Skybridge — 1.4k stars. Full-stack TypeScript framework for MCP Apps and ChatGPT Apps. Type-safe, React-powered, platform-agnostic. The "build once, deploy to any AI platform" abstraction layer that's been missing.
Notable Trends
"Skill files" are the new plugins. ECC (194k), taste-skill (21k), academic-research-skills (22k), cybersecurity-skills (9.9k), dotnet/skills (3.1k) — the pattern of shipping capabilities as structured files that coding agents consume is exploding. This is the app store of the agent era, and we're watching the format wars in real-time.
Anti-slop backlash is productized. Two separate repos (taste-skill, stop-slop) trending simultaneously, both focused on making AI output less detectable and more human. Developer frustration with generic AI prose has crossed the threshold from complaint to tooling.