The Ledger

Every statement that passed quotation and attribution checks. Mix any filter with any other: certainty 1/5, debate potential 5/5, or both at once.

clear all ✕

why aren't all 9 resolved? a statement only gets an assessment when the public record can support or contradict it. opinions and what-ifs never can, and 0 checkable ones are still open, waiting for their date. predictions held up or didn't; assertions are supported or contradicted. on every card: ▮▮▮▮▮ certainty · ▮▮▮▮▮ debate potential. speakers are clickable

Prediction Not checkable as stated
Chase: Basically all AI agents will write code
“You know, if agents never write any code, then okay, maybe they're not useful, but I think it's trending where Basically all agents will write code, so that's a very interesting piece, I think.”
Harrison Chase Mar 12, 2026 ▶ 28:46 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
Assertion Supported
Anthropic's Claude Code uses custom harness tools over model-level RL tools
“It doesn't actually use the tools that are RL into the model. So like anthropic models have some like file editing tools. They have a completely different set of tools in, in the actual harness.”
Harrison Chase Mar 12, 2026 ▶ 7:55 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
Prediction Not checkable as stated
Harrison Chase: AI agents will evolve into synchronous interfaces orchestrating asynchronous sub-agents
“Like, I do think we'll get to a place where we have this kind of like synchronous conversational agent kicking off kind of like longer running asynchronous agents in the background.”
Harrison Chase Mar 12, 2026 ▶ 26:58 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
Assertion Not checkable as stated
Chase: Major AI labs' RL focus on code makes coding agents perform best
“All the big model labs have been RL and code and bash and editing files into those models. And so that is the stuff that works the best.”
Harrison Chase Mar 12, 2026 ▶ 4:58 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
Assertion Not checkable as stated
Harrison Chase: Most current agent harnesses feature built-in sub-agents and skills
“Most harnesses today have sub agents built in. They have skills built in.”
Harrison Chase Mar 12, 2026 ▶ 9:16 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
Prediction Not checkable as stated
Chase: AI agents will clearly be long-running and stateful
“So I think, like, pretty clearly agents will be long-running and stateful, and so I think we have a deployments product. I think a lot of the I think deployments products that let you build long-running stateful things will be kind of, like, interesting no mat…”
Harrison Chase Mar 12, 2026 ▶ 28:57 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
Assertion Not checkable as stated
Developers are buying Mac Minis as primitive physical sandboxes for AI agents
“That's why people are buying Mac minis as a, you know primitive way of sandboxing them and keeping them in a contained environment.”
Harrison Chase Mar 12, 2026 ▶ 30:49 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
Assertion Not checkable as stated
LangChain sees a 50-50 split in how developers deploy agent sandboxes
“In practice, we see people doing about fifty-fifty between each of these.”
Harrison Chase Mar 12, 2026 ▶ 31:24 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
Assertion Supported
Manus, Claude Code, and Deep Research share four core architectural primitives
“We saw Manus, we saw Cloud Code, we saw Deep Research, they all had these four things and we were like, okay, that's pretty common, let's put it into a Python package and make it easy for people to build their own versions of that.”
Harrison Chase Mar 12, 2026 ▶ 18:24 Everything Gets Rebuilt: The New AI Agent Stack | Harrison Chase, LangChain
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