Ethan · Sprout Labs

AI as humanity's shared infrastructure.
Researching memory architecture & agent safety.
Soul Engine · project-brain (160+⭐) · PromptGuard

[Ethan · Sprout Labs @ethanflow_lab]

I open-sourced project-brain v2.3.1: installable as a Claude Code skill. Works with Cursor, Copilot, Codex, Aider too. Two production projects validated.

Architecture: brain/ folder + collaboration protocol that lets AI tools resume context across sessions.

DMs open for your observations.

https://t.co/uLjYn6veVJ

[Ethan · Sprout Labs @ethanflow_lab]

@cheerselflin 那很棒了

[Ethan · Sprout Labs @ethanflow_lab]

For days, I nearly said goodbye to an account I'd had for four years.

Here's what happened: OpenAI suddenly required me to verify a phone number I lost years ago just to get into my own account — even though I could prove it was mine with email, an authenticator app, and a passkey. The code could never reach that dead number. I was locked out.

I wrote to support, over and over. They answered twice — and twice was enough to break me: "impossible," "we can't," "it's policy." I'd already started practicing the goodbye.

Then the door opened.

Not because they changed their minds — but because somewhere I couldn't see, a crowd of strangers kept reporting that same wall, kept making noise, refused to compromise — until OpenAI loosened it.

My account came back on the light they made.

Thank you — every one who didn't swallow it, who didn't accept "impossible." You'll never know your stubbornness saved four years of a stranger's memories.

One day, when someone else is stuck in the dark — I want to be that light.

[Ethan · Sprout Labs @ethanflow_lab]

@Cullen23Edward @tanzhengmc97 如何投诉

[Ethan · Sprout Labs @ethanflow_lab]

@IWVRsaOuHo2dFxo @tanzhengmc97 真的取消了，我感觉我受到了歧视

[Ethan · Sprout Labs @ethanflow_lab]

@IWVRsaOuHo2dFxo @tanzhengmc97 怎么投诉的

[Ethan · Sprout Labs @ethanflow_lab]

@real_veryjack 我也遇到了这个问题，请问有解吗

[Ethan · Sprout Labs @ethanflow_lab]

@tigeryan718 很遗憾，没用的

[Ethan · Sprout Labs @ethanflow_lab]

@shinning1314 @tigeryan718 需要单独买APi吗

[Ethan · Sprout Labs @ethanflow_lab]

@SamuelHe89 @frontonair @m1ssuo 我转人工，建议我重新注册账户，他们也没法子

[Ethan · Sprout Labs @ethanflow_lab]

@frontonair @m1ssuo 可以去https://t.co/CCMCtbFJNY

[Ethan · Sprout Labs @ethanflow_lab]

@frontonair @m1ssuo 我的人工回复了，但是不能换绑手机号

[Ethan · Sprout Labs @ethanflow_lab]

@frontonair @m1ssuo 找到办法麻烦告诉我下，这件事很困扰我

[Ethan · Sprout Labs @ethanflow_lab]

@frontonair @m1ssuo 这么离谱么

[Ethan · Sprout Labs @ethanflow_lab]

@NischayJoshi8 Yeah, feels like we’re attacking two halves of the same context problem from different directions.

[Ethan · Sprout Labs @ethanflow_lab]

I open-sourced project-brain v2.3.1: installable as a Claude Code skill. Works with Cursor, Copilot, Codex, Aider too. Two production projects validated.

Architecture: brain/ folder + collaboration protocol that lets AI tools resume context across sessions.

DMs open for your observations.

https://t.co/uLjYn6veVJ

[Ethan · Sprout Labs @ethanflow_lab]

Compared 4 local-first memory systems (Naive bge-m3,
LangChain Memory, Mem0, my own Hybrid+Reranker setup)
on 200 anonymized chunks of my AI memory.

3 findings:

1. The 3 "dense-only" approaches scored identically
(54.2% Recall@5). SDK ≠ precision.

2. Mem0 + rerank scored *worse* than Mem0 raw —
no candidate prefetch in its pipeline.

3. Hybrid + prefetched reranker hit 62.5% (+8pts)
but at 54× latency.

n=200, self-evaluated, not a real benchmark.
Engineering notes from a Saturday.

[Ethan · Sprout Labs @ethanflow_lab]

This stuck with me. Spent 8 months building on the idea — designer, don't code, used context-engineering as my main lever to ship 5 AI projects with my AI co-builder.

Open-sourced the system today: a brain/ folder split by how fast each file changes (heartbeat → per-decision → per-session). The constraint forces the model to retrieve, not accumulate.

Writeup: https://t.co/ruBooPCmYw

[Ethan · Sprout Labs @ethanflow_lab]

Matt — your skills repo nudged me to ship mine. Designer who doesn't code; been running a project-brain skill for 8 months across 5 AI infra projects.

Just open-sourced it. Same "small, composable, hackable" spirit you championed — but focused on session-to-session continuity instead of in-session workflow.

Long writeup with the design decisions: https://t.co/ruBooPCmYw

[Ethan · Sprout Labs @ethanflow_lab]

读完这条受启发。

我也是被同样的痛点逼出来造工具的——产品设计师，不写代码，8 个月和 AI 副驾一起出了 5 个 AI 项目。痛点不是 AI 不会写代码，是新会话每次都"失忆"。

刚开源了 project-brain：一个 brain/ 文件夹结构，让新会话 30 秒内接续上一次的进度。Slogan: Different session. Same brain.

刚写了一篇英文版的设计思路，主题接近你这条但角度是 maker 视角：
https://t.co/ruBooPCmYw