10 New GitHub Repos Every Claude Code User Should Try

This month dropped a wave of brand-new open-source repos worth actually putting in your stack — everything from Claude Code skills to fully customizable agent harnesses. I went through the ones getting real traction and pulled 10 that I'd actually recommend. Some are for hardcore tinkerers, some are dead simple to add today. Here's the list, what each one does, and who it's for.

What Is the DeepSeek Harness?

The DeepSeek Harness is an open-source agent harness built on one idea: everything is a plugin. It pulled over 200,000 stars in about two weeks — the fastest-growing GitHub repo I've seen. Yes, some of that momentum is a very enthusiastic base boosting the numbers. But there's something real underneath it.

The reason it matters is that it lets you customize the harness itself at a level Claude Code and Codex don't. Think of the harness as the chassis of a car — with DeepSeek's model, you can swap the engine, the seats, the upholstery, all of it. You can run any model you want (right now models route in through OpenRouter, so basically anything is fair game). More importantly, you can write your own plugins that change how the harness works at a fundamental level: tool calling, agent loops, even trivial stuff like the UI and colors.

You can approximate some of this in Claude Code or Codex with hooks and skills, but you're not touching the underlying plumbing. If you love tinkering and total customizability, the DeepSeek Harness is the one to try — and there's already an exploding library of community plugins that change how it behaves.

What Is Omarchy?

Omarchy is a custom Linux distribution that combines Arch with AI agents baked into the operating system itself. It's been getting a ton of hype over the last few days. The idea is that agents aren't a bolted-on app — they're a foundational part of the OS.

Simple example: say you hit an error with the OS itself. That error automatically gets routed to your AI agent of choice — Codex, Claude Code, Gemini, whatever you're running in the background — instead of you copy-pasting stack traces around. Installing and running this is a step above everything else on this list. If you're not comfortable in Linux, it's probably a bridge too far. But if you already love Linux and love AI, it's worth a serious look.

What Is Anydoc from Firecrawl?

Anydoc is a Rust library from Firecrawl that converts documents into clean Markdown. AI loves Markdown, but most of us still work with Word, PowerPoint, Excel, and other traditional Office formats. Plenty of tools convert those to Markdown — they're just usually either inaccurate or slow. Anydoc solves both.

By Firecrawl's own benchmarks (so take it with a grain of salt), Anydoc handled 14 out of 14 formats with a median speed of 4.4 milliseconds. For comparison, Mammoth clocked in at 52.5 milliseconds and only handled 1 of 14 formats, while a LibreOffice-based converter did 12 of 14 but took far longer. A third-party AI judge scored the outputs on completeness and structure, and Anydoc came out ahead there too.

No conversion is perfect. But if you've got thousands or tens of thousands of documents locked in old Office formats and you want AI to handle them well, Anydoc is built for exactly that.

What Is Herdr?

Herdr is an upgraded UI for your terminal, and I use it every single day. On the surface it's a normal terminal, but on the left you get insight into the agents you already have running plus different workspaces. It's built for multitasking across multiple agents on multiple projects at once.

Spin up agent one, agent two, and organize them into workspaces — think of a workspace as a project or folder. You can split panels so multiple agents live in one view. The part I like most: it persists your work. Exit Herdr entirely, reopen it, and your tabs and agents are still right there. It's lightweight, simple, and a great add if you live in the terminal and run several agents.

What Is Orca?

If Herdr is for terminal people, Orca is the equivalent for people who prefer VS Code and heavier IDEs. Orca is basically VS Code rebuilt specifically for AI agents, and it's sitting around 56,000 stars.

Standout features include a mobile companion for easy remote work, a built-in design mode (we're starting to see design modes show up across Claude Code and Codex desktop apps), and its own CLI — so agents can actually control Orca the IDE instead of only the other way around. It runs on macOS, Windows, and Linux. If you like the idea behind Herdr but don't want to live purely inside a terminal, Orca is where I'd point you.

What Is Claudex Loop?

Claudex Loop is a skill for Claude Code and Codex that I built myself. The core problem it solves: AI systems are terrible at grading their own work. Ask Codex how good its work was — it'll say great. Ask Claude how good its work was — it'll say it nailed it.

The fix is to bring in an outside system to grade the first one. So when Claude generates a plan, this skill hands it to Codex, and Codex says what's right, what's wrong, and what to change. It gives you a full four-phase process for any project or feature:

• Reconnaissance — it runs an actual web search to figure out what it should do.
• Questions — it asks you a series of questions, like an enhanced plan mode, before Claude writes a plan.
• Adversarial review — Claude and Codex go back and forth for multiple rounds until they reach a conclusion.
• Build and check — one system builds it, then the second system reviews the build and flags what's right and wrong.

You get a second set of eyes across the entire process. The payoff is a better output for fewer tokens, because you're not stuck in the loop where Claude builds something that looks like it works, it breaks, and you iterate forever. You solve it all on the front end. If you use both Claude Code and Codex, this is a simple way to combine their strengths.

What Is OpenMontage?

OpenMontage is essentially a giant AI video production studio in a box, sitting just under 54,000 stars. It's the repo to grab if you're trying to get into AI video production.

There's a lot of human-in-the-loop involved — you don't just hand it a prompt and walk away. You get creative control at each step. It'll do research, scripting, and prompt generation, but you provide some pieces yourself, like API keys. For good-looking AI video you need the top models (something like Seedance 2.5); you can't lean on cheap or local video models unless you've got a very strong machine.

That said, you can still do plenty without spending a cent by using graphics Claude Code can generate through tools like Remotion or Hyperframes — great for computer-generated-style videos. OpenMontage is also set up for specific pipelines: animated explainer, animation, clip factory, screen demo, talking head — each with its own skills. If you want an all-in-one tool to get into AI video, this is a strong starting point.

What Is OmniRoute?

OmniRoute is an AI gateway that can be used completely for free. It's sitting around 58,000 stars and gives you one endpoint into over 350 AI providers — 90+ of which are free.

Here's the clever part: you can set it to only use free providers and it cycles through them automatically. You never get stuck mid-task because you burned your free tokens with one provider — OmniRoute just moves to the next one. Want frontier models instead? Configure it that way, hook it into Claude Code or Codex, set priorities, and tell it when to switch from one model to another.

The term for this is a combo — a chain of models OmniRoute routes across automatically. If something fails or a quota runs out, it falls over to the next healthy model with no intervention from you. There are roughly 19 pre-built routing strategies, and you can write your own. If you use a lot of different models, or you want to token-max with free ones, OmniRoute is worth setting up — as simple or as sophisticated as you want.

What Is Archify?

Archify takes your codebase — or any system description — and turns it into a live, shareable map of how everything works. At one point it hit 30,000 stars and was the number one repo of the day.

You can take a relatively complicated codebase and turn it into something like an Excalidraw-style diagram, then share it with people to make hard-to-follow code visual — especially useful when AI wrote most of it. And it's not just static snapshots. You can create motion sequences that explain interactions or changes, and show how data actually flows. If you work with complex codebases and regularly have to explain them to people who aren't as deep in the code, Archify makes that way easier.

What Is Claude of Tanks?

Last one, and nobody's really talking about it — it's got maybe 200 stars — but Claude of Tanks is a sick project. A developer recreated World of Tanks in Three.js using nothing but Claude Code.

The graphics, physics, and customization are wild for something built this way. It has an in-depth combat system, a HUD, an X-ray kill cam, destructible environments, and physics well beyond what you'd expect from a typical Claude-built game. There's multiplayer with local LAN or browser hosting, a bunch of maps, selectable tanks, adjustable camouflage, and modules for guns, engine, fuel tank, and radio. It's a perfect example of what's actually possible when you build a game with Claude Code. Shout out to Kevin Lou for making it — give it a spin.

Frequently Asked Questions

What is the fastest-growing GitHub repo right now?

The DeepSeek Harness, which pulled over 200,000 stars in about two weeks. It's an open-source agent harness built on an "everything is a plugin" architecture, letting you swap models, tool calling, agent loops, and even the UI at a fundamental level.

Which of these repos is easiest to start with?

Herdr and Orca are the lowest-friction. Herdr is a lightweight terminal UI for running multiple agents with persistent workspaces, and Orca is a VS Code-style IDE built for AI agents that runs on macOS, Windows, and Linux. Both work with the setup you already have.

Can I use these AI tools for free?

Several, yes. OmniRoute gives you one endpoint into 350+ providers with 90+ free options and can cycle through them automatically. OpenMontage can produce videos without paid API keys if you use Claude-generated graphics through tools like Remotion instead of premium video models.

What's the best repo for converting documents to Markdown?

Anydoc from Firecrawl. It's a Rust library that converted 14 out of 14 document formats with a median speed of 4.4 milliseconds in Firecrawl's own benchmarks — ideal if you have large volumes of Word, PowerPoint, or Excel files you want AI to work with.

How do I get a second AI to review my code?

Use Claudex Loop, a skill for Claude Code and Codex. It runs a four-phase process — reconnaissance, questions, adversarial review, then build-and-check — where one model builds and the other grades the work, so you're not relying on a single AI to grade itself.

---

If you want to go deeper into building with AI coding agents, join the free Chase AI community for templates, prompts, and live breakdowns. And if you're serious about building with AI, check out the paid community, Chase AI+, for hands-on guidance on how to make money with AI.