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An event-sourced reactive graph runtime for auditable, forkable, long-running agents.
Yohei Nakajima
VC / builder. A running log of agents, tools, research, and experiments.
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A mathematical explanation of how information sharing without action coordination can worsen group outcomes.
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The Shared Discovery Paradox
A mathematical explanation of how information sharing without action coordination can worsen group outcomes.
Regimes
An auditable, held-out-gated self-improvement loop demonstrated on LongMemEval.
AG Coder
An open-source reference coding agent built on ActiveGraph.
Learn ActiveGraph
An interactive site for learning ActiveGraph concepts through hands-on examples.
ActiveGraph LongMemEval Experiments
Experiments comparing deterministic, semantic, and hybrid architectures for auditable agent memory.
The Log Is the Agent
An arXiv paper introducing event-sourced reactive graphs for auditable and forkable agentic systems.
ActiveGraph
An event-sourced reactive graph runtime for auditable, forkable, long-running agents.
BabyAGI Wiki
A technical history comparing nine iterations of BabyAGI across three years.
Pitch Yohei
A live AI pitch agent that interviews founders and VCs and extracts structured startup data.
Ode to Claude Code
An AI-generated sea shanty for Claude Code lovers.
BabyAGI 3
A minimal autonomous assistant.
K.I.S.S.
A daily prompting game.
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I’m an early-stage investor who builds software to explore ideas, understand emerging technology, and meet ambitious founders. This is the artifact trail.
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