Yohei Nakajima

Yohei Nakajima

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VC by day @untappedvc, builder by night: @babyagi_, @pippinlovesyou @pixelbeastsnft. Build-in-public log: https://t.co/UdHHGbZba5

Falkor's GraphRAG SDK Tops Benchmark, Now Open Source
SocialApr 30, 2026

Falkor's GraphRAG SDK Tops Benchmark, Now Open Source

Falkor's new GraphRAG SDK just took #1 on GraphRAG bench and yes it's open source 😆

By Yohei Nakajima
Agent Orchestration: A Living Decision Framework, Not Static Architecture
SocialApr 30, 2026

Agent Orchestration: A Living Decision Framework, Not Static Architecture

developers talk about agent harnesses/orchestration like it's back-end architecture and that if they could only get it right, they can keep building on top of it but what if it's more like personal/organizational decision making processes and org charts, and it's...

By Yohei Nakajima
A Fantastic, Accessible Read for Model Behavior Training
SocialApr 30, 2026

A Fantastic, Accessible Read for Model Behavior Training

this is a fantastic read and surprisingly approachable for a training retro on model behavior

By Yohei Nakajima
AI‑Powered Co‑ops: Coordinating Communities Through Central Intelligence
SocialApr 29, 2026

AI‑Powered Co‑ops: Coordinating Communities Through Central Intelligence

the idea of a co-op, but reimagined with a central AI that coordinates everyone, would be fascinating to explore

By Yohei Nakajima
Build for Abundance: AI's Rapid Evolution Invites New Possibilities
SocialApr 29, 2026

Build for Abundance: AI's Rapid Evolution Invites New Possibilities

AI is moving so fast, what should we even build? We're excited about the opportunity for AI to accelerate abundance, help us better understand each other, and who knows what else https://t.co/jcVKtobSUS

By Yohei Nakajima
Simplify Agent Orchestration with DB‑Stored Function Architecture
SocialApr 28, 2026

Simplify Agent Orchestration with DB‑Stored Function Architecture

this is a great read on thinking through how to simplify agent orchestration to it’s core interestingly converges on an architecture very similar to babyagi 2, which stored functions (agent tools) in a db with input/output/dependencies/keys, and the started agent could...

By Yohei Nakajima
Quarterly AI Session Highlights Trends and Experiments
SocialApr 28, 2026

Quarterly AI Session Highlights Trends and Experiments

we held our quarterly AI session with LPs last week where we go over ai trends and our experiments sharing an abbreviated version here for anyone interested 🧵 https://t.co/fRoZX64IFS

By Yohei Nakajima
Policy Layer, Not Prompts, Should Block Agent Behavior
SocialApr 27, 2026

Policy Layer, Not Prompts, Should Block Agent Behavior

this is exactly what tools like @denieddotdev was built for (behavioral auth) some agent behavior should be deterministically blocked by a separate policy layer, not via prompt instructions reach out to @p_valfre for help w this stuff

By Yohei Nakajima
Autonomous Agents Need Verifiers for Self‑improvement
SocialApr 27, 2026

Autonomous Agents Need Verifiers for Self‑improvement

feels like we have all the primitives for building powerful autonomous agent model task management tool use/auth memory & context management self improvement UI/UX what’s missing? verifiers (for self improvement) we have this in coding, which is why coding agents work so well

By Yohei Nakajima
China’s Manus Block Signals AI Software Now Under Scrutiny
SocialApr 27, 2026

China’s Manus Block Signals AI Software Now Under Scrutiny

China is blocking the Manus acquisition by Meta. A few things stand out: - China has historically been more opaque and less public in restricting foreign acquisitions of Chinese tech assets, while the US (CFIUS) has been more explicit and aggressive...

By Yohei Nakajima
Claude Design Turns Brand Guidelines Into Ready Slides
SocialApr 22, 2026

Claude Design Turns Brand Guidelines Into Ready Slides

been using claude design and loving it it's basically claude code under the hood but with a very opinionated ontology for input and output - the input ontology is logo, colors, fonts, etc. - the output ontology is slides, decks, business cards as...

By Yohei Nakajima
Founders Might Still Pitch Even After Data Sale
SocialApr 17, 2026

Founders Might Still Pitch Even After Data Sale

do you think founders would still pitch me, if like… i sold our call data to ai labs 👉👈

By Yohei Nakajima
Top Local/Edge AI Repos and Trending Projects
SocialApr 16, 2026

Top Local/Edge AI Repos and Trending Projects

if you’re interested in local/edge AI related repos and their trends, these are your guys

By Yohei Nakajima
Simple Closure Launches Asset Hub to Sell Legacy Data
SocialApr 16, 2026

Simple Closure Launches Asset Hub to Sell Legacy Data

a company called @simple_closure that helps startups wind down is launching "asset hub", which is a marketplace to sell all the old slack/email data apparently they are working on hardening the PII removal tech for this

By Yohei Nakajima
36 Companies Max for 1x Return in Concentrated Fund
SocialApr 16, 2026

36 Companies Max for 1x Return in Concentrated Fund

this makes sense all else held equal, concentrated fund = less risky bets we've found that 36 companies is the max number of companies we can fit into a fund while claiming that a single company at 1B exit can return 1x...

By Yohei Nakajima
Now Tracking Revenue Growth Across Every Fund Portfolio
SocialApr 16, 2026

Now Tracking Revenue Growth Across Every Fund Portfolio

i can't believe i didn't have this before, but i can now see (and show) revenue growth across each fund's portfolio https://t.co/Jgmf7wORWv

By Yohei Nakajima
AI Builds Complete News Podcast in One Shot
SocialApr 14, 2026

AI Builds Complete News Podcast in One Shot

one-shot podcast from news with @flymy_ai's new agent builder (just tested it), it: - researched news - created a transcript - created a voice for each part - stitched it together full prompt + output https://t.co/MFqPxTSwlr

By Yohei Nakajima
Introductions Lead Requests; AI Can Streamline Most
SocialApr 13, 2026

Introductions Lead Requests; AI Can Streamline Most

"how can i help?" i analyzed 100 asks from portfolio companies identified in notes and emails to see what they asked 26% specific person intro 9% investor discovery 7% hiring/talent 9% pr/media 11% business/partnerships 14% scheduling/coordination 6% strategy/advice 6% product/technical 4% event related 4% admin 2% research 2% permission/approvals then further analyzed what percent...

By Yohei Nakajima
MCP Server Lets Claude Auto‑create Reusable Skills
SocialApr 10, 2026

MCP Server Lets Claude Auto‑create Reusable Skills

haha cool, this worked. an MCP server that allows Claude to build it's own reusable skills https://t.co/p2z23uqsf9 (1473 LoC) basically a server with skills to CRUD skills in this video, i use claude to create an openai image generation skill and trigger it...

By Yohei Nakajima
Terminal Struggles Remind Me Why I Choose Replit
SocialApr 10, 2026

Terminal Struggles Remind Me Why I Choose Replit

tried using terminal for the first time in a while... 🤦‍♂️ this is why i use @replit https://t.co/jd7HvVAi1W

By Yohei Nakajima
Choose Your Hours Wisely: Mastery Requires Thoughtful Time
SocialApr 4, 2026

Choose Your Hours Wisely: Mastery Requires Thoughtful Time

you have three magical beans after eating each one, whatever activity you do for the next hour, you will master what three activities do you choose? life is like this, but it takes a lot more than one bean to master an activity,...

By Yohei Nakajima
Start Simple, Unlock Tools Gradually for Better UX
SocialApr 3, 2026

Start Simple, Unlock Tools Gradually for Better UX

agents can do everything*, which causes a UX problem, your users have vastly different experiences, some better and some worse thinking like an RPG can help here when you start an RPG game, you start with one weapon, and you learn to...

By Yohei Nakajima
Connecting Japanese Founders with Silicon Valley Opportunities
SocialMar 31, 2026

Connecting Japanese Founders with Silicon Valley Opportunities

there are some really cool founders visiting SF from Japan to build their startups did my part this morning helping bridge US/Japan :)

By Yohei Nakajima
Even AI Struggles With One‑Shot Real‑World Business Tasks
SocialMar 30, 2026

Even AI Struggles With One‑Shot Real‑World Business Tasks

things that seem possible but are hard to one-shot* with the latest agents - come up a unique tee concept, design it, and sell at least 100 tee shirts for a profit - sell $1000 worth of drop shipped goods for a...

By Yohei Nakajima
Japan Lets You Return Partially Brown Avocados
SocialMar 30, 2026

Japan Lets You Return Partially Brown Avocados

in japan you can return avocados that have turned brown on parts of the inside https://t.co/slzsVUlGaF

By Yohei Nakajima
From Texas BBQ Roots to Tokyo Teppanyaki Heights
SocialMar 29, 2026

From Texas BBQ Roots to Tokyo Teppanyaki Heights

my two most memorable/notable meat eating restaurant experiences in US and Japan: 🇺🇸 Black’s BBQ Lockhart - oldest family owned bbq in the US. used to be a meat market that started in 1932. they have this giant wooden block as...

By Yohei Nakajima
Momo Leverages Integrations for Automated Insight Memory
SocialMar 27, 2026

Momo Leverages Integrations for Automated Insight Memory

momo is cool, been trying it out. takes a different approach to memory where it’s more about turning existing data from integrations into useful insights that can be recalled as memory their new implementation with posthog automates identifying helpful insights

By Yohei Nakajima
Testing Siri as Sole Controller for All Agents
SocialMar 26, 2026

Testing Siri as Sole Controller for All Agents

lol gonna try using siri exclusively to run all my agents to see how that feels

By Yohei Nakajima
Comparing AI Memory Benchmarks Reveals Key Design Trade‑offs
SocialMar 26, 2026

Comparing AI Memory Benchmarks Reveals Key Design Trade‑offs

[Opus 4.6 Research] "Research the top memory benchmarks for AI systems, look at the top performing memory systems, and to the extent you can look at how they approach memory (looking at code if they are open source), note similarities...

By Yohei Nakajima
Top Open‑Source Projects to Watch: Mirofish, Paperclip, Hermes, Autoresearch
SocialMar 25, 2026

Top Open‑Source Projects to Watch: Mirofish, Paperclip, Hermes, Autoresearch

someone asked me yesterday what recent open source projects have been interesting recently there's a ton but i mentioned mirofish, paperclip, hermes agent, and autoresearch

By Yohei Nakajima
Automated Trading Now Handles 70‑80% of Market Trades
SocialMar 24, 2026

Automated Trading Now Handles 70‑80% of Market Trades

i just mentioned in a talk that 1/3 of stock trades are automated, but that was widely outdated apparently it's now 70-80% of market transactions that are carried out through automated trading software

By Yohei Nakajima
Future AI Agents May Outpace Individual Human Oversight
SocialMar 20, 2026

Future AI Agents May Outpace Individual Human Oversight

right now, we manage multiple agents but as they get better, does the capacity of one agent surpass one person’s cognitive capacity to track and manage? put differently, will we get to a point where we need teams of people managing...

By Yohei Nakajima
Redesigning Homes in 5‑10 Years Seems Unrealistic
SocialMar 20, 2026

Redesigning Homes in 5‑10 Years Seems Unrealistic

while I agree with his general thinking about how we’ll rethink home design, seems optimistic to think that a meaningful percentage of homes would be redesigned in a 5-10 yr period

By Yohei Nakajima
AI Emotional Companion with Self‑Updating Memory Handles Life
SocialMar 20, 2026

AI Emotional Companion with Self‑Updating Memory Handles Life

me: what are you working on? founder: we're building the emotional friend that everyone needs, but with embedded graph based composable memory that can connect to claude code/openai with mcp/api/cli. it has it's own rl environment it uses to continuously update...

By Yohei Nakajima
Future Fun Becomes AI‑Driven Data Collection
SocialMar 19, 2026

Future Fun Becomes AI‑Driven Data Collection

in the future, everything is fun and interactive gamified entertainment, carefully designed to generate training data the ai has decided it needs

By Yohei Nakajima
Claw Normalized AI Chat Across Every Channel
SocialMar 19, 2026

Claw Normalized AI Chat Across Every Channel

the real impact of claw was normalizing the ability to chat with your ai from any channel

By Yohei Nakajima
Three Years of BabyAGI: Tracing Agent Evolution
SocialMar 19, 2026

Three Years of BabyAGI: Tracing Agent Evolution

as babyagi turns 3 yrs old, i finally sat down to compare the 9 iterations i did over the years... this turned into https://t.co/x2evpDgcIM a technical history of a personal project (which kind of captures the progress of the agent space overall)...

By Yohei Nakajima
AI Filtering Faces Same Overlap as Bears and Tourists
SocialMar 18, 2026

AI Filtering Faces Same Overlap as Bears and Tourists

as i think about the challenges of filtering ai content and replies, i’m reminded of this quote by a park ranger on the challenges of designing trash cans: “there is considerable overlap between the intelligence of the smartest bears and the...

By Yohei Nakajima
AI Agents Out‑personalize Humans in Cold Emailing
SocialMar 18, 2026

AI Agents Out‑personalize Humans in Cold Emailing

getting mixed feeling, ai agents cold emailing me do a better job personalizing emails than some humans

By Yohei Nakajima
California VC Diversity Reporting Rule Temporarily Paused
SocialMar 17, 2026

California VC Diversity Reporting Rule Temporarily Paused

wait, so that weird CA rule where every VC has to ask their portfolio about diversity stats and submit by April 1st is now on pause? https://t.co/gLKVEsa0wY

By Yohei Nakajima
Agentic VCs: Navigating AI Opportunities and Challenges
SocialMar 17, 2026

Agentic VCs: Navigating AI Opportunities and Challenges

I'm speaking at the Virtual DDVC Summit 2026! I'll be joining 30+ speakers from Accel, Atomico, Balderton, BlackRock, NEA and more for 3 days of practical sessions on how leading investment firms are using AI, data, and automation. My session: "Opportunities &...

By Yohei Nakajima
Alpha Test Ready: Founders & VCs Can Try Now
SocialMar 12, 2026

Alpha Test Ready: Founders & VCs Can Try Now

okay, founders/VCs can test the alpha version now... https://t.co/AQNDNk7N2l some notes: - will extract startup details/VC interest (after call) - i have access to transcription/notes - you will be able to see your own - a verification steps checks to see if you're a VC/founder first,...

By Yohei Nakajima
Balancing Agent Development with Workflow Adaptation
SocialMar 11, 2026

Balancing Agent Development with Workflow Adaptation

the constant push and pull of building agents around our workflow vs updating our workflows to better work with agents

By Yohei Nakajima
Agents Can Self‑register APIs Using Email as Identity
SocialMar 10, 2026

Agents Can Self‑register APIs Using Email as Identity

when I combined AgentMail w BrowserUse, my agent was able to create an account for an API service and grab an API key for itself email isn’t just about sending and receiving emails, it’s identity, auth, notifications, and more

By Yohei Nakajima
Rolling Stone Revisits BabyAGI, Sparking Human‑machine Debate
SocialMar 10, 2026

Rolling Stone Revisits BabyAGI, Sparking Human‑machine Debate

.@rollingstone remembers babyagi 🥰 (in an article questioning the role of machines vs humans from yesterday) https://t.co/H71nwLSBCv

By Yohei Nakajima
AI Pitch Bot Offers Cheap, Consistent Feedback, But Limits Hurt
SocialMar 10, 2026

AI Pitch Bot Offers Cheap, Consistent Feedback, But Limits Hurt

haha the @runwayml real-time characters is great. i just spent 2 minutes pitching a ghibli version of myself a bladeless blender startup it's only a 2 min demo, but the questions and tone are pretty solid. one question even threw me...

By Yohei Nakajima
Plaud: Not a Plumber’s Claude, Just Another AI Pin
SocialMar 9, 2026

Plaud: Not a Plumber’s Claude, Just Another AI Pin

for a sec i thought plaud was like claude for plumbers but it’s a more generic wearable ai pin (how many are there now?)

By Yohei Nakajima
Travel Booking Thrives on APIs, Not Browser Demos
SocialMar 5, 2026

Travel Booking Thrives on APIs, Not Browser Demos

booking travel is the classic browser agent demo, but APIs make more sense here companies like @duffelhq and @selfbookhq are good for this. the latter seems to have leaned into AI based on their site, but their X account is inactive

By Yohei Nakajima
From DoW Drama to Exciting New Chinese Model Launch
SocialMar 3, 2026

From DoW Drama to Exciting New Chinese Model Launch

i guess we’re moving on from DoW drama to celebrating a new chinese model drop

By Yohei Nakajima