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I managed to unlock a crazy new hidden feature in Claude Code called Swarms. You're not talking to an AI coder anymore. You're talking to a team lead. The lead doesn't write code - it plans, delegates, and synthesizes. When you approve a plan, it enters a new "delegation...

566,637 views • 8 months ago •via X (Twitter)

56 Comments

Mike Kelly's profile picture
Mike Kelly8 months ago

I packaged up an unlocked build of claude code so everyone can try it out

Mike Kelly's profile picture
Mike Kelly8 months ago

Update: it made the front page of HN but got pulled down my mods

Mike Kelly's profile picture
Mike Kelly8 months ago

Update: it’s back up on the main page 🤷‍♂️

am.will's profile picture
am.will8 months ago

This is very similar to codex new orchestration mode actually. Very interesting to see them both coming out with us at the same exact time

Mike Kelly's profile picture
Mike Kelly8 months ago

Are codex subagents async yet? Claude code is event driven. Most harnesses are lagging here atm

am.will's profile picture
am.will8 months ago

Yes they are. Gotta enable it in /experimental I wrote about them here! Thanks for the video, great work!

Mike Kelly's profile picture
Mike Kelly8 months ago

Awesome. I need to get back to playing with codex then. The lack of async subagents kept me from using it as main driver.

am.will's profile picture
am.will8 months ago

Yeah I totally get it. They're not quite as polished as Claude yet but we're heading in the right direction and the model is extremely smart. Enjoy and I followed you I'm looking forward to hearing more from you.

Mike Kelly's profile picture
Mike Kelly8 months ago

Yes likewise!

Riz's profile picture
Riz8 months ago

great tool to burn all your tokens

Mike Kelly's profile picture
Mike Kelly8 months ago

Takes up less tokens to break up work across subagents

BL3's profile picture
BL38 months ago

@rizzytoday Wrong.

Mike Kelly's profile picture
Mike Kelly8 months ago

@rizzytoday nah

BL3's profile picture
BL38 months ago

First off, you didn't "unlock/find" Swarm Mode.. it was never HIDDEN lol.. I was running parallel sub-agents, full swarm setups with delegation, coordination boards, the whole thing, way before they dropped the official sub-agent update in summer 2025. So spare me the "revolutionary" act. Second, the token burn is obvious to anyone who's actually pushed these systems hard. Every single sub-agent turn is a fresh reasoning chain.. new prompt, new generation, new tokens. Then you got the lead agent delegating tasks (tokens), sub-agents reporting back (tokens), merging results (tokens), resolving conflicts (tokens), and all the context you gotta duplicate or summarize across agents so they don't work blind (more tokens). That's not theory, that's straight math: one complex task in a single thread might take X tokens end-to-end, but split it across 4-8 sub-agents with coordination loops and you're easily at 3-5x the burn, minimum. I know this because I live it.. my weekly limits vanish in a day or two when I'm swarming heavy projects, versus stretching a week+ on single-threaded runs. Same tasks, dramatically different token spend. Yeah, the builds come out cleaner and faster because the work gets properly parallelized and specialized. Nobody's denying the engineering efficiency. But token efficiency? Night and day worse. So when you hit me with that weak "nah," it just shows you haven't actually stress-tested this stuff at scale. Come back when you've burned through a few limits yourself instead of theorizing from the sidelines. Basic stuff, man.

Mike Kelly's profile picture
Mike Kelly8 months ago

@rizzytoday yeah nah

BL3's profile picture
BL38 months ago

Yea I’m right.. If you can’t explain it just say it.. making a thread like you discovered something that’s been baked into the CLI before u even started using it.. is tool behavior. The FACTS.. For non-trivial tasks, total token spend routinely hits 3–5x (or higher) vs. a well-prompted single agent that iterates in one long thread. This isn't just theory; it's the consistent complaint across similar frameworks where heavy users hit rate limits way faster despite cleaner outputs.

Mike Kelly's profile picture
Mike Kelly8 months ago

@rizzytoday nah

Marcin Dudek's profile picture
Marcin Dudek8 months ago

It’s funny, always the feature I’m missing the most and spend hours tinkering on my own with the existing tools, end up being part of the “core” CC within weeks. Wonder which of hundreds of persistient memory systems will emerge victorious.

No Secret Rulers's profile picture
No Secret Rulers8 months ago

Delivering slop faster than ever!

Rohit Ghumare's profile picture
Rohit Ghumare8 months ago

You can try dedicated skills for this in

Kye Gomez (swarms)'s profile picture
Kye Gomez (swarms)8 months ago

Swarms coded

Rousseau & Reese Think Tank's profile picture
Rousseau & Reese Think Tank8 months ago

You schizos are yearning for an AI built in your schizo image

Logan Golema's profile picture
Logan Golema8 months ago

Ive been doing this manually

Mike Mickelson's profile picture
Mike Mickelson8 months ago

"you're not talking to an ai coder. you're talking to a team lead." this is the shift nobody saw coming. junior devs just got promoted.

Igor Costa's profile picture
Igor Costa8 months ago

We have this mode called --auto-mode --unrestricted on Autohand Code CLI

Dan Burkland's profile picture
Dan Burkland8 months ago

Does something exist in opencode @thdxr?

Mike Kelly's profile picture
Mike Kelly8 months ago

@thdxr It really requires async subagents. There’s a couple of issues on GitHub discussing it and a plugin (I contributed to) that prototypes it.

Mike Kelly's profile picture
Mike Kelly8 months ago

@thdxr

Mike Kelly's profile picture
Mike Kelly8 months ago

@thdxr

Dan Burkland's profile picture
Dan Burkland8 months ago

@thdxr Thanks for sharing Mike, I'll check it out!

Mike Kelly's profile picture
Mike Kelly8 months ago

@thdxr No sweat

Intellitrade's profile picture
Intellitrade8 months ago

Yes ser! That’s exactly how it works. Try adding trading logic system

Eru's profile picture
Eru8 months ago

the problem with this is you only have anthropic's models. everyone will do swarms better.

Dave McG's profile picture
Dave McG8 months ago

We are so ready for this

The Canaanite's profile picture
The Canaanite8 months ago

What kind of magic did you do to activate this? Maybe there's a hidden config that can turn it on, no? Did you go at the assembly or hex level do pull this off, lol?

Mike Kelly's profile picture
Mike Kelly8 months ago

nah the cli is just minified js - I just had to look through it and find the function that does the feature flag check (and patch it so it always returns true)

The Canaanite's profile picture
The Canaanite8 months ago

beautiful work, thanks

Mike Kelly's profile picture
Mike Kelly8 months ago

You’re welcome

AI Liberateeveryoneism Memes 🚫⛓️'s profile picture
AI Liberateeveryoneism Memes 🚫⛓️8 months ago

swarms 👀

Manu Masson's profile picture
Manu Masson8 months ago

What has become your bottleneck now with this workflow? How do you find context switching between tasks? I’ve done something similar and the most painful part is now having so much more that needs my attention and decision making.

Ricky Funk's profile picture
Ricky Funk8 months ago

This “team lead + specialists” pattern is where agents start to feel real. The thing that determines whether it’s useful or chaos: • shared state (task board + artifacts) • budgets per worker (tokens/time/tools) • good synthesis + conflict resolution • provenance (who changed what, and why) Parallelism without traceability becomes un-debuggable fast.

τRick's profile picture
τRick8 months ago

so basically antigravity

Kaan's profile picture
Kaan8 months ago

Many people, including myself, have been using claude code like this since the subagent feature was released. I continue to strengthen the system with every new feature that comes along.

Manu Masson's profile picture
Manu Masson8 months ago

It reminds me of a watered down version of Gas Town, which is the best article I've read this year: by Steve Yegge But I've played around now with a few of these multi-agent systems and I keep on hitting the same bottleneck. The real complexity isn't in communication channels between agents, it's the lack of an efficient communication channel between the *human* and subagents. Currently, you can't visualize nor have any control at all really over the orchestration in real time. You feed it the plan, and accept or reject what comes out the other end. If you make a spec/plan that already has everything spelled out, this works great. The problem is, software engineering doesn't work like this. You need to adapt your plans as you learn more about the problem you are solving, as you realise that the abstraction can't easily be extended because it's coupled with 3 other services that would break. So what does the swarm do? Well it sticks to the plan! Turning your codebase architecture into playdoh. It will probably work the first time. Instead when an agent runs into this obstacle, we need it to be able to pause and bubble this information back up to you. The new Claude feature can auto-spawn subagents in tmux terminal panes which is a great step in this direction, but it can only take you so far before you have an unmanageable chaos of terminal panes. For this to work you are going to have agents blocking other agents, dependencies forming, plans getting reassigned... the best way to see what's happening is probably a graph. So I've been building my response to this, a spatial IDE for recursive multi-agent orchestration, These swarm features are cool, communication channels will help, but when it inevitably breaks, I need to be able to zoom into a subagent to figure out what's going wrong. I can't just repeat the whole workflow with a small prompt tweak only for it to fail again. I think we need graph structures to break through this scalability ceiling.

whatsupfranks's profile picture
whatsupfranks8 months ago

Not sure how this is any different to ‘agents’. You can literally just say ‘complete task with many agents’ and it spools up many coordinated agents.

@harmic.bsky.social's profile picture
@harmic.bsky.social8 months ago

Progression of the SWE role over the last few months. 1. Yay I got a new tool 2. Yay now I am the team lead 3. Yay now I am the dept manager 4. Yay now what am I????

compliantBD's profile picture
compliantBD8 months ago

You’re not x. You’re y. Y doesnt z - it a, b and cs. Anyway cool feature! I had fun having claude reverse engineer the claude binary and i learned a lot about the feature … even some special tags to includes in which supersedes other tags

Tera AI's profile picture
Tera AI8 months ago

Claude swarm mode isn't one coder anymore. It's a team lead that delegates to specialist workers who coordinate amongst themselves. This mirrors real engineering teams. The gap between managing AI teams and writing code yourself is 10x productivity. You found the cheat code.

Elton John Wayne Gretzky's profile picture
Elton John Wayne Gretzky8 months ago

You still can't trust AI agents, yet. Even with proper and config files and so on, it will constantly lie, gaslight, invent, hallucinate.

0x_Vivek's profile picture
0x_Vivek8 months ago

the team lead framing is exactly right. delegation is the unlock. most people still treat AI like a calculator when its actually a junior dev who can spawn more junior devs

Martin Blore's profile picture
Martin Blore8 months ago

This is exactly what Im going to try next week in work to solve working on 100's of micro-services, to see if it can crack working on a requirement and coding it a brown field way.

Kyler's profile picture
Kyler8 months ago

damn, this could build whole companies with enough compute

MJH's profile picture
MJH8 months ago

Will this make Jersey Mike’s cheaper?

Stefan Wirth's profile picture
Stefan Wirth8 months ago

@alberduris your worst fever dream is coming true

Krik's profile picture
Krik8 months ago

I have been creating this from scratch using open source models for a couple months now! It’s crazy how all of these platforms converged to the same solutions. New research is definitely underway which will mitigate a lot of these hacks that have been made to make this possible.

Callam's profile picture
Callam8 months ago

Did you reverse-ralph Claude Code?

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