Hacker News: jnakano89

New comment by jnakano89 in "Advertise in ChatGPT"

jnakano89 — Wed, 22 Jul 2026 04:17:58 +0000

"Ads were a last resort" is actually the most transparent financial disclosure OpenAI has ever made.

New comment by jnakano89 in "Show HN: Explore 6048 YC companies as an interactive galaxy"

jnakano89 — Tue, 21 Jul 2026 18:46:42 +0000

Not as sophisticated as yours I’m afraid, the companies are clustered by category/industry. The layout has some semantic structure and proximity tries to reflect shared categories.

The crate co-use looks interesting, and building it without agent swarms still counts :)

New comment by jnakano89 in "Show HN: Explore 6048 YC companies as an interactive galaxy"

jnakano89 — Tue, 21 Jul 2026 18:30:34 +0000

Don’t tempt me. YC Universe V2: No Man’s SaaS mine ARR, battle churn, and avoid getting acquihired by the black holes.

New comment by jnakano89 in "Show HN: Explore 6048 YC companies as an interactive galaxy"

jnakano89 — Tue, 21 Jul 2026 18:21:30 +0000

Basically two prompts: 1) One for agent swarms to collect, cross-check, and structure the data. 2) Another to turn the dataset into the interactive galaxy.

I agree though, the autonomous build process is more interesting than the artifact.

New comment by jnakano89 in "Show HN: Explore 6048 YC companies as an interactive galaxy"

jnakano89 — Tue, 21 Jul 2026 17:52:41 +0000

I built this mainly as a qualitative test of Kimi’s frontend capabilities given the strong frontend score on ARENA. Broadly, I’d say it’s quite capable, it even did a ton of validating, took screenshots, identified its own issues, and iterated repeatedly. The entire session was far more rigorous than I expected

New comment by jnakano89 in "Show HN: Explore 6048 YC companies as an interactive galaxy"

jnakano89 — Sun, 19 Jul 2026 14:17:51 +0000

^ Builder here, I used Kimi K3 and agent swarms to turn YC companies into an interactive galaxy. Every star is a startup you can click and explore.

Show HN: Explore 6048 YC companies as an interactive galaxy

jnakano89 — Sun, 19 Jul 2026 14:15:49 +0000

Article URL: https://artifacta.io/a/pg_x9pombpdybx90q2s16eu

Comments URL: https://news.ycombinator.com/item?id=48968408

Points: 36

# Comments: 20

New comment by jnakano89 in "Ask HN: What Are You Working On? (July 2026)"

jnakano89 — Mon, 13 Jul 2026 08:23:30 +0000

Working on Artifacta, a place for agents to store artifacts they create and share/publish them. Now supports hosted MCP along with a CLI

[1]: https://artifacta.io

[2]: https://docs.artifacta.io/introduction

Show HN: MCP Leaderboard that publishes and updates itself

jnakano89 — Thu, 09 Jul 2026 15:49:35 +0000

Article URL: https://artifacta.io/mcp-leaderboard

Comments URL: https://news.ycombinator.com/item?id=48847928

Points: 1

# Comments: 0

MCP Server Leaderboard: 9,655 servers ranked by stars, downloads, and recency

jnakano89 — Tue, 07 Jul 2026 16:00:51 +0000

Article URL: https://artifacta.io/mcp-leaderboard

Comments URL: https://news.ycombinator.com/item?id=48819651

Points: 2

# Comments: 0

Show HN: Artifacta – Durable storage for agent outputs

jnakano89 — Wed, 17 Jun 2026 15:24:25 +0000

Article URL: https://artifacta.io

Comments URL: https://news.ycombinator.com/item?id=48571783

Points: 3

# Comments: 0

New comment by jnakano89 in "Ask HN: What are you working on? (June 2026)"

jnakano89 — Mon, 15 Jun 2026 07:49:12 +0000

Working on Artifacta (https://docs.artifacta.io/introduction)- durable artifact storage for the files AI agents produce across sessions.

The problem I kept hitting with agent workflows (especially cloud hosted agents) was that the artifacts they produced became really awkward to handle across different cloud sessions.

So I built Artifacta as the boring storage layer underneath. Agents store and retrieve artifacts via CLI, REST API, Python SDK, or an MCP server. Artifacts are grouped by session/agent metadata, deduped on identical content, and safe to retry (idempotency keys), making it easy to handle artifacts across different sessions.

Would love any feedback for those who run mutli-agent orchestration or if you deal with artifacts across different agents.

Gen Z turn to 'dopamine sites' for quick comfort

jnakano89 — Mon, 08 Jun 2026 07:33:58 +0000

Article URL: https://www.koreatimes.co.kr/lifestyle/trends/20260527/gen-z-turn-to-dopamine-sites-for-quick-comfort

Comments URL: https://news.ycombinator.com/item?id=48442326

Points: 8

# Comments: 3

New comment by jnakano89 in "Tech sell-off widens as South Korea index plunges"

jnakano89 — Mon, 08 Jun 2026 04:03:31 +0000

KOSPI isn't really a country index, it's more like a concentrated chip/HBM ETF in disguise. Samsung Electronics + SK Hynix alone are roughly 30-40% of the index by market cap, and both move on the same AI-capex thesis as Nvidia/TSMC. So it seems to be the same trade pulling back expressed through a country index that's levered to it.

New comment by jnakano89 in "Texas is America Inc's new centre of gravity"

jnakano89 — Sat, 06 Jun 2026 02:33:41 +0000

About half of America’s off-grid energy projects are in Texas. The OpenAI/Oracle data center in Shackelford County is running on its own gas plant. That’s the real Texas advantage.

It’s not just taxes or cheap power. It’s that you can put the power plant and the inference cluster in the same operating loop to avoid waiting years in an interconnection queue.

New comment by jnakano89 in "Bot web traffic has overtaken human web traffic, data shows"

jnakano89 — Fri, 05 Jun 2026 05:10:54 +0000

"Make the web free for humans by charging bots" is a great pitch when you're the one positioned to be the toll booth.

The Orchestration Tax

jnakano89 — Sat, 30 May 2026 04:36:01 +0000

Article URL: https://addyosmani.com/blog/orchestration-tax/

Comments URL: https://news.ycombinator.com/item?id=48332616

Points: 2

# Comments: 0

New comment by jnakano89 in "Naphtha shortages in Japan"

jnakano89 — Sat, 30 May 2026 04:17:29 +0000

Buried near the end: Nisshin Seifun Welna stopped printing cooking time on their spaghetti packaging tape. There's a Japanese consumer somewhere squinting at the package trying to remember if it was 8 mins or 10 mins.

This is what "globalized supply chain" looks like up close.

New comment by jnakano89 in "Python utility package for building Claude Code hooks"

jnakano89 — Fri, 29 May 2026 05:26:26 +0000

The deny-with-reason is undersold here. Most hook frameworks treat denials as the end of the road: the LLM hits a wall, retries blindly, and gets blocked again.

Feeding the reason back into Claude's context could break that cycle much faster.

One question for the author: when several hooks fire, does Claude get all the denial reasons concatenated, or does the first deny win?

New comment by jnakano89 in "Why is almost everyone right-handed? A new study connects it to bipedalism"

jnakano89 — Tue, 19 May 2026 16:17:31 +0000

"Handedness" is two traits, not one. The paper finds bipedalism explains strength (how strongly someone prefers a hand); brain size explains direction (which one). Most coverage conflates them.

Australopithecus was already strongly lateralized — committed handers — long before the rightward consensus emerged. Two traits, evolved separately by millions of years.