Fractal hierarchical agent loop framework released
12 Sep 22 3:55 PM · 3d ago · 2 posts · 2 sources · development 12 of 12
An open-source tool for building hierarchical agent loops was posted, enabling deeper teams of agents to operate recursively without global polling.
ringlochid Creator of Oh My Subagentsigrlgkv Creator of ViaductDiogo Almeida AI architecture advisorsimone20a Creator of Orcristspuentesp Creator of Lain
The whole story posts the bright band is this development · numbered dots are the others · click one to jump
What people said 24 voices · verbatim
-
I think this space is very untapped. Models are interesting, but I am absolutely obsessed with some things I've been researching/working on for the past few years:Fractal tool discovery: tool taxonomy where an agent can "drill deeper" to find what specific tool it's looking for. Helps if/when polluting context with a zillion (mostly unnecessary)…
-
ringlochid/oh-my-subagents # devopsish https:// github.com/ringlochid/oh-my-su bagents
-
> Helps if/when polluting context with a zillion (mostly unnecessary) tools.Ugh, I can't help but respond to this one point. The fact that this is even an issue in the current year just tells us how screwed the software field is in a lot of ways. I don't mean that in existential terms, but of how divided we've become in terms of what's happened to…
-
OK, but isn't this just programmatic tool calling, which is beneficial in some cases but not others?This is available in DSH via PTC mode.Basically, instead of the completion API returning a sequence of tool calls, it returns a program that invokes the tools.I think most are returning Typescript programWith ordinary tool calling, you may have to…
-
This is so interesting.I'm unlocking savings (in both speed and costs) but using a different way of thinking by integrating Decision models:In short, LLMs spend so many turns on discovery, triage, and safety checks for everyday tasks. A decision model cuts those turns by preparing the relevant context before the prompt and handling the simple…
-
In my projects i use unreal and me and my team have tested out multiple things. We have settled on no MCP complications whatsoever other than simply exposing the python scripting from the editor + a export step that can write the blueprints and asset data into plaintext so that the bot can grep them. This has given by far the strongest results…
-
So I commented on this in passing in a deeper thread (in re: the potential trademark issue - https://news.ycombinator.com/item?id=49807884), but I think this is serious enough for its own top-level thread.How likely is it that they get sued into the ground in a year? They might have a strong suite of offerings even as soon as six months from now…
-
happy to see more harnesses in the Go space, i've had a fun time building https://github.com/ChaseRensberger/wingmani think the language primitives map well to the natural desire to use these tools across networks and in concurrent workloads.another Go harness i keep up to date with is: https://github.com/boldsoftware/shelley (exe.dev team)
-
Isn't that what codemode is for?mcp with 2 tools: execute(code) and search(query)all other tools, mcps, apis, whatever are encapsulated by the one interface. new tools don't bloat the agent's context, and it can write its own code to perform more advanced and batch operations against the available tools (executed within a sandbox).executor is a…
-
If the frontier labs (well, I guess just Anthropic) would go full OAuth support even on a subscription we would see, an even bigger, explosion in harness improvements. I maintain that there is a ton of low-hanging fruit and new ideas/concepts that should be tried but the costs are holding people back (using API pricing only).It's both expensive to…
-
For everyone self-hosting models, optimising for cost is an anti-feature. It makes the results worse for no benefit (except a little speed).What I'd love to see is a harness that deeply optimises for the best results obtainable out of non-frontier models. Many of these have 1M context windows, and most of it remains unused and under utilised in…
-
Crush [1] has had async tools for a long time, as has Claude Code.They work well, except that the agent will often simply call wait() immediately after, and also do it with a longer timeout, causing crashes/hangs to really slow down the process; whereas immediate tool calls have a built-in 30s timeout in most harnesses.I imagine this one will…
-
i have found agents to be excellent at using CLIs, which are fractal-like. i built this reddit ads api cli and my agent immediately starting introspecting it in a "drill deeper" manner:
-
Funny, I solved this problem by having Claude write a pi extensionhttps://github.com/Pyrolistical/pi-notifyNow my pi agent setups its own trigger to notify itself when a background process is done
-
Fractal tool discovery is a fascinating idea! Have you worked on implimenting this into any agent harnesses already to any success? My first impression is allowing the agent to fork itself, not unlike launching a subagent, then returning it's response back to the main agent.
-
not a fan of README's where there's no clear way to run the program, like a getting started or how to build. i think this is the opposite of a docu-monster where AI documents everything, but clearly more documentation is better than lack of.
-
I suppose GPT models throw shade when your input is less favorable to Codex:“On the surface, Unreal Agent achieves the same outcomes with fewer model turns and fewer input tokens.”(Emphasis mine)
-
Oh very nice, can you also compare it to https://maki.sh?Would be interesting to compare to a harness optimizing for cost reduction too.
-
I've also explored s/Fractal tool discovery/Skill tree approaches, seems to work pretty well when you stick the equivalent of XREFs in the frontmatter.
-
The critique of CLI-oriented SDKs is fair. I'd want to see how it behaves on long-horizon tasks where the "no sub-agents" constraint starts to bite
-
Have you had workflows/benchmarks to test this on? I'm primarily interested if there are real use cases that would benefit.
-
Is there a TUI or GUI I can use this with? Or is unreal-agent-runner intended to be called from an existing app? How does that work?
-
I am super confused. Is this nothing to do with Unreal? I was assuming an MCP agent for creating rendered worlds for games etc.
-
Seeing this isnt Unreal Engine related, I do wonder if anyone is building tools for unreal engine.
All 12 developments of Wave of open-source tools for multi-agent coding systems… →
Hacker NewsMastodon