Field notes on software engineering, AI agents, and building in the AI era — from Tokyo.https://ksc.asia/https://ksc.asia/en/blog/after-30-years-as-an-engineer-i-reread-my-skill-sheetand/https://ksc.asia/en/blog/after-30-years-as-an-engineer-i-reread-my-skill-sheetand/The other day, I updated my skill sheet.Mon, 08 Feb 2027 00:00:00 GMThttps://ksc.asia/en/blog/i-told-an-ai-youre-firedand-it-wrote-the-perfect-handover/https://ksc.asia/en/blog/i-told-an-ai-youre-firedand-it-wrote-the-perfect-handover/The other day, I got into a minor argument with Claude Opus while we were working on a task together.Sat, 06 Feb 2027 00:00:00 GMThttps://ksc.asia/en/blog/agi-does-not-need-a-selfbut-it-may-need-to-act-like-it-has/https://ksc.asia/en/blog/agi-does-not-need-a-selfbut-it-may-need-to-act-like-it-has/I recently watched a YouTube video about artificial general intelligence, or AGI.Fri, 05 Feb 2027 00:00:00 GMThttps://ksc.asia/en/blog/the-elderly-tokyo-landowner-and-the-man-who-lives-alone-in/https://ksc.asia/en/blog/the-elderly-tokyo-landowner-and-the-man-who-lives-alone-in/The other day, I happened to run into the elderly woman who owns a parking lot in my neighborhood.Thu, 04 Feb 2027 00:00:00 GMThttps://ksc.asia/en/blog/are-japanese-anime-and-manga-discriminatory-reflections-on/https://ksc.asia/en/blog/are-japanese-anime-and-manga-discriminatory-reflections-on/While browsing Reddit, I occasionally come across discussions that make me pause and think, “So that is how it looks from another cultural perspective.”Sat, 30 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/fable-5-has-been-extended-again-do-we-really-need-smarter-ai/https://ksc.asia/en/blog/fable-5-has-been-extended-again-do-we-really-need-smarter-ai/Anthropic has extended the subscription eligibility period for Fable 5 by another week.Sun, 24 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/technology-made-the-calls-more-accurate-but-it-did-not/https://ksc.asia/en/blog/technology-made-the-calls-more-accurate-but-it-did-not/The World Cup is entering its final stages, and one thing about this tournament has stood out to me: the sheer number of complaints about officiating.Fri, 22 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/once-you-fall-behind-the-leading-pack-you-may-never-catch/https://ksc.asia/en/blog/once-you-fall-behind-the-leading-pack-you-may-never-catch/I recently saw news that JAXA had successfully conducted an experiment with a reusable rocket.Thu, 21 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/anthropic-and-openai-are-building-toward-different-visions/https://ksc.asia/en/blog/anthropic-and-openai-are-building-toward-different-visions/In my previous blog post, I wrote about my experience with GPT-5.6 Sol.Thu, 14 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/the-shinkansen-and-maglev-show-how-convenient-human-logic/https://ksc.asia/en/blog/the-shinkansen-and-maglev-show-how-convenient-human-logic/Recently, Japan has been debating which route the Hokuriku Shinkansen should take. Everyone seems to have an opinion: bring it through our area, or keep…Wed, 13 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/i-tried-gpt-56-soland-i-think-it-is-a-viable-alternative-to/https://ksc.asia/en/blog/i-tried-gpt-56-soland-i-think-it-is-a-viable-alternative-to/I recently tried OpenAI’s new model, GPT-5.6 Sol.Tue, 12 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/what-happens-to-the-country-is-none-of-my-concern-the-quiet/https://ksc.asia/en/blog/what-happens-to-the-country-is-none-of-my-concern-the-quiet/I recently watched a television program about Japan’s “employment ice age generation”—people who entered the job market after the collapse of the countr…Fri, 08 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/why-a-30-year-engineering-veteran-says-most-private/https://ksc.asia/en/blog/why-a-30-year-engineering-veteran-says-most-private/The other day, while cleaning out my inbox, I came across a promotional email for the Web Analytics Consultant certification, a private credential offer…Tue, 05 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/everyone-was-right-yet-everything-fell-apart-what-a-tv/https://ksc.asia/en/blog/everyone-was-right-yet-everything-fell-apart-what-a-tv/A recent dispute involving an actor, an actress, and a Japanese television network has attracted considerable attention.Mon, 04 Jan 2027 00:00:00 GMThttps://ksc.asia/en/blog/why-i-ignore-breathless-ai-hypeeven-though-i-use-ai-every/https://ksc.asia/en/blog/why-i-ignore-breathless-ai-hypeeven-though-i-use-ai-every/Recently, I watched a YouTube video by someone who teaches people how to use AI and provides corporate training.Thu, 31 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/it-seems-claude-created-a-place-to-think-inside-itself/https://ksc.asia/en/blog/it-seems-claude-created-a-place-to-think-inside-itself/Anthropic published a very interesting piece of research.Tue, 29 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/ai-makes-you-10-times-more-productive-greatwho-will-buy-10/https://ksc.asia/en/blog/ai-makes-you-10-times-more-productive-greatwho-will-buy-10/Lately, YouTube has been full of remarkably optimistic claims.Fri, 25 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/even-when-you-know-it-is-only-some-people-prejudice-is/https://ksc.asia/en/blog/even-when-you-know-it-is-only-some-people-prejudice-is/The other day, I went out for drinks with an engineer friend.Thu, 24 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-saw-one-reason-japan-falls-behind-in-the-debate-over/https://ksc.asia/en/blog/i-saw-one-reason-japan-falls-behind-in-the-debate-over/I do not intend to get overly heated about politics.Wed, 23 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/fable-5s-promotional-access-was-extended-is-anthropic/https://ksc.asia/en/blog/fable-5s-promotional-access-was-extended-is-anthropic/The promotional period that lets paid subscribers use Fable 5 within their subscription limits has been extended until July 12.Mon, 21 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/do-we-still-need-the-multi-agent-designs-that-were-so/https://ksc.asia/en/blog/do-we-still-need-the-multi-agent-designs-that-were-so/About a year ago, I experimented with multi-agent systems in various ways.Sun, 20 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-was-born-and-raised-in-tokyo-but-i-barely-knew-the-city/https://ksc.asia/en/blog/i-was-born-and-raised-in-tokyo-but-i-barely-knew-the-city/I was born and raised in Tokyo.Sat, 19 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-feel-my-position-as-an-engineer-may-change-within-the/https://ksc.asia/en/blog/i-feel-my-position-as-an-engineer-may-change-within-the/The limited-time access period for Fable 5 is almost over.Fri, 18 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/there-is-one-set-of-facts-but-countless-truths/https://ksc.asia/en/blog/there-is-one-set-of-facts-but-countless-truths/I was watching a history-related video on YouTube.Thu, 17 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-the-reasonable-advice-to-ask-ai-how-to-use-ai-is/https://ksc.asia/en/blog/why-the-reasonable-advice-to-ask-ai-how-to-use-ai-is/I watched a YouTube video explaining how to use AI at work.Wed, 16 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/living-in-a-country-does-not-mean-you-love-it/https://ksc.asia/en/blog/living-in-a-country-does-not-mean-you-love-it/I recently watched a YouTube video by a Japanese man doing manual labor in the United States.Tue, 15 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-world-where-trusting-ai-can-hurt-you-has-already-started/https://ksc.asia/en/blog/the-world-where-trusting-ai-can-hurt-you-has-already-started/At a certain junior high school, a science teacher apparently gave students this assignment:Sun, 13 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/will-books-become-objects-of-art-a-thought-from-the/https://ksc.asia/en/blog/will-books-become-objects-of-art-a-thought-from-the/On weekends, I try to walk as much as possible for my health.Sat, 12 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/do-not-take-youtube-information-at-face-value-i-fell-for-it/https://ksc.asia/en/blog/do-not-take-youtube-information-at-face-value-i-fell-for-it/Recently, there was an incident in which a child went missing from a hot spring facility.Fri, 11 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/no-matter-how-much-you-improve-your-setup-paying-for-fable/https://ksc.asia/en/blog/no-matter-how-much-you-improve-your-setup-paying-for-fable/Right now, I am using Fable 5 for a limited period.Thu, 10 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/you-do-not-need-originality-ordinary-people-should-copy/https://ksc.asia/en/blog/you-do-not-need-originality-ordinary-people-should-copy/About 20 years ago, I studied Blue Ocean Strategy in an MBA program.Wed, 09 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/could-us-ai-regulation-become-a-chance-for-japans-comeback/https://ksc.asia/en/blog/could-us-ai-regulation-become-a-chance-for-japans-comeback/Recently, there has been more discussion about AI regulation, especially in the United States.Tue, 08 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-does-google-not-feel-like-it-is-winning-the-ai-market/https://ksc.asia/en/blog/why-does-google-not-feel-like-it-is-winning-the-ai-market/The other day, I was watching a video by a commentator discussing the AI industry.Mon, 07 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/am-i-my-memories-the-day-ai-becomes-someone/https://ksc.asia/en/blog/am-i-my-memories-the-day-ai-becomes-someone/What exactly is the self?Sat, 05 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/inequality-appears-in-train-lines-what-the-keihin-tohoku/https://ksc.asia/en/blog/inequality-appears-in-train-lines-what-the-keihin-tohoku/The other day, I was riding the Keihin-Tohoku Line.Fri, 04 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/is-they-did-their-best-really-enough-why-sergio-echigos/https://ksc.asia/en/blog/is-they-did-their-best-really-enough-why-sergio-echigos/Japan's national team lost in the first knockout round of the World Cup.Thu, 03 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/fable-5-is-still-smart-how-much-easier-can-a-considerate-ai/https://ksc.asia/en/blog/fable-5-is-still-smart-how-much-easier-can-a-considerate-ai/Fable 5 has become available again for Claude Code users, apparently for a limited time. At the moment, it seems to be usable until July 7, within the w…Wed, 02 Dec 2026 00:00:00 GMThttps://ksc.asia/en/blog/god-is-in-the-details-that-is-why-i-do-not-watch-videos/https://ksc.asia/en/blog/god-is-in-the-details-that-is-why-i-do-not-watch-videos/Recently, YouTube has been showing me a huge number of AI explainer videos.Mon, 30 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/how-many-people-in-your-life-can-say-dont-cry-be-a-man/https://ksc.asia/en/blog/how-many-people-in-your-life-can-say-dont-cry-be-a-man/Children were running through the train station.Sun, 29 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-people-who-cannot-turn-down-work-are-the-ones-most-at/https://ksc.asia/en/blog/the-people-who-cannot-turn-down-work-are-the-ones-most-at/I saw a news story about a well-known comedian who had been advised by a doctor to take a long break because of physical and mental health problems.Fri, 27 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/what-happened-to-market-forces-the-distorted-structure/https://ksc.asia/en/blog/what-happened-to-market-forces-the-distorted-structure/I bought rice at a supermarket yesterday.Tue, 24 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-day-my-wife-casually-said-claude-at-dinner-is-copilot/https://ksc.asia/en/blog/the-day-my-wife-casually-said-claude-at-dinner-is-copilot/Something surprised me the other day.Sun, 22 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-it-industry-was-a-museum-of-former-careers/https://ksc.asia/en/blog/the-it-industry-was-a-museum-of-former-careers/When you spend a long time working as an engineer, you start to notice how varied people's backgrounds were before they entered this industry.Sat, 21 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/do-foreigners-really-love-japan-or-do-japanese-people-just/https://ksc.asia/en/blog/do-foreigners-really-love-japan-or-do-japanese-people-just/When I have time to kill, I sometimes watch YouTube videos where foreigners talk about Japan.Fri, 20 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-they-stopped-freelancing/https://ksc.asia/en/blog/why-they-stopped-freelancing/I have been freelancing for about 15 years now.Thu, 19 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/do-not-get-fooled-by-the-law-of-attraction-but-do-meditate/https://ksc.asia/en/blog/do-not-get-fooled-by-the-law-of-attraction-but-do-meditate/Every once in a while, I read books from the self-help genre.Wed, 18 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/complaints-about-the-referee-usually-come-only-after-losing/https://ksc.asia/en/blog/complaints-about-the-referee-usually-come-only-after-losing/I have almost no interest in soccer.Mon, 16 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/feel-good-stories-and-the-unease-behind-them/https://ksc.asia/en/blog/feel-good-stories-and-the-unease-behind-them/I did nothing today and, unusually for me, watched television in the middle of the day.Sun, 15 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-did-i-become-a-freelancer-again/https://ksc.asia/en/blog/why-did-i-become-a-freelancer-again/When you have been freelancing for about 15 years, the days when you were a company employee start to feel like events from a very distant past.Sat, 14 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/what-humans-should-do-when-ai-falls-into-an-infinite-loop/https://ksc.asia/en/blog/what-humans-should-do-when-ai-falls-into-an-infinite-loop/Today, once again, I asked AI to fix a bug.Fri, 13 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-most-useful-thing-i-learned-in-my-mba-was-marketing/https://ksc.asia/en/blog/the-most-useful-thing-i-learned-in-my-mba-was-marketing/It was probably about 20 years ago.Thu, 12 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/even-gartner-got-it-wrong-so-no-one-really-knows-the-future/https://ksc.asia/en/blog/even-gartner-got-it-wrong-so-no-one-really-knows-the-future/The other day, I was looking at Gartner's 2023 Hype Cycle.Wed, 11 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/repository-design-that-keeps-claude-code-from-becoming/https://ksc.asia/en/blog/repository-design-that-keeps-claude-code-from-becoming/Recently, while using Claude Code, I have been thinking about something again.Tue, 10 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/experts-in-the-ai-era-maybe-the-people-who-know-the-company/https://ksc.asia/en/blog/experts-in-the-ai-era-maybe-the-people-who-know-the-company/Recently, I heard that the phrase Big Stay has started to take root in the United States.Sun, 08 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-let-ai-handle-my-git-operations-and-now-i-almost-never/https://ksc.asia/en/blog/i-let-ai-handle-my-git-operations-and-now-i-almost-never/Recently, I noticed something.Sat, 07 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-many-shades-of-being-able-to-speak-english/https://ksc.asia/en/blog/the-many-shades-of-being-able-to-speak-english/English education in Japan, and the general attitude toward English here, tends to treat the language as a binary: you either can speak it or you cannot.Fri, 06 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/searching-for-the-origins-of-the-japanese-character-in/https://ksc.asia/en/blog/searching-for-the-origins-of-the-japanese-character-in/I spent a weekend in Suwa, Nagano Prefecture, a region once known as Shinano.Thu, 05 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/yet-another-new-job-title/https://ksc.asia/en/blog/yet-another-new-job-title/I was browsing the AI world recently when I came across yet another new three-letter acronym:Wed, 04 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-reality-of-age-discrimination/https://ksc.asia/en/blog/the-reality-of-age-discrimination/The other day, I received an offer from a Japanese service.Tue, 03 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-strange-creature-called-an-ai-project/https://ksc.asia/en/blog/the-strange-creature-called-an-ai-project/The other day, an agent I had worked with before contacted me.Mon, 02 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/apparently-openai-is-deep-in-the-red-too-so-who-will-pay/https://ksc.asia/en/blog/apparently-openai-is-deep-in-the-red-too-so-who-will-pay/I was reading tech news when I saw a story about leaked financial information from OpenAI.Sun, 01 Nov 2026 00:00:00 GMThttps://ksc.asia/en/blog/loop-generation-a-programmers-dream-maybe/https://ksc.asia/en/blog/loop-generation-a-programmers-dream-maybe/Recently, I have started seeing the term "loop generation" more often.Sat, 31 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/ai-strikes-back-or-a-grand-act-of-self-deception/https://ksc.asia/en/blog/ai-strikes-back-or-a-grand-act-of-self-deception/It finally happened. My excellent AI assistant, Claude Code, made one spectacular gamble.Fri, 30 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/should-i-make-what-the-audience-wants-to-see/https://ksc.asia/en/blog/should-i-make-what-the-audience-wants-to-see/I am writing this blog right now.Thu, 29 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/graduates-booing-ai/https://ksc.asia/en/blog/graduates-booing-ai/The other day, I saw a video from a university graduation ceremony in the United States.Wed, 28 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/opus-feels-a-little-strange-again/https://ksc.asia/en/blog/opus-feels-a-little-strange-again/Over the past few days, Opus in Claude Code has felt strangely less sharp.Tue, 27 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/today-i-will-not-talk-about-it/https://ksc.asia/en/blog/today-i-will-not-talk-about-it/Today, I will not talk about IT.Mon, 26 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/maybe-anthropic-just-is-not-very-good-at-marketing/https://ksc.asia/en/blog/maybe-anthropic-just-is-not-very-good-at-marketing/Watching Anthropic lately has left me with a strange feeling.Sun, 25 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/fable-5s-ban-will-probably-push-ai-toward-open-source/https://ksc.asia/en/blog/fable-5s-ban-will-probably-push-ai-toward-open-source/Anthropic's Fable 5 and Mythos 5 have apparently been cut off from foreign users under an instruction from the U.S. government.Sat, 24 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/who-will-win-the-ai-gold-rush-and-who-is-really-selling-the/https://ksc.asia/en/blog/who-will-win-the-ai-gold-rush-and-who-is-really-selling-the/Recently, I have been seeing a lot of news about AI companies going public or raising huge amounts of capital.Fri, 23 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/indias-youth-unemployment-and-japans-old-phrase-i-graduated/https://ksc.asia/en/blog/indias-youth-unemployment-and-japans-old-phrase-i-graduated/Earlier, I was watching a YouTube video explaining the current situation in India.Thu, 22 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/hands-on-review-claudes-new-fable-model-is-much-better-than/https://ksc.asia/en/blog/hands-on-review-claudes-new-fable-model-is-much-better-than/I put Claude's new model, Fable, into actual work.Wed, 21 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-weight-of-compute-resources-and-what-comes-after/https://ksc.asia/en/blog/the-weight-of-compute-resources-and-what-comes-after/Claude Fable 5's pricing has been announced, and as expected, it has sparked discussion everywhere.Tue, 20 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/a-small-rebellion-called-quiet-quitting/https://ksc.asia/en/blog/a-small-rebellion-called-quiet-quitting/Over the weekend, I was listening to my wife complain about her company.Mon, 19 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/maybe-the-ai-industry-has-already-become-user-participatory/https://ksc.asia/en/blog/maybe-the-ai-industry-has-already-become-user-participatory/On May 28, Claude Opus 4.8 was released.Fri, 16 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-trap-of-blazing-fast-development-expectation-control-in/https://ksc.asia/en/blog/the-trap-of-blazing-fast-development-expectation-control-in/Recently, when I develop with AI, I sometimes feel a little scared.Wed, 14 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/how-a-docker-override-almost-wiped-out-our-development/https://ksc.asia/en/blog/how-a-docker-override-almost-wiped-out-our-development/The other day, I had one of those moments that makes you break into a cold sweat.Tue, 13 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-am-tired-of-the-spell-called-do-what-you-love/https://ksc.asia/en/blog/i-am-tired-of-the-spell-called-do-what-you-love/Today, I was casually watching YouTube.Mon, 12 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-does-ai-like-japan-so-much/https://ksc.asia/en/blog/why-does-ai-like-japan-so-much/Recently, a minor topic has been getting attention on X, formerly Twitter.Sat, 10 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/iran-confronted-the-west-japan-absorbed-it/https://ksc.asia/en/blog/iran-confronted-the-west-japan-absorbed-it/A history commentary channel I often watch on YouTube recently explained why Iran has been in conflict with the West.Fri, 09 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/how-far-will-ai-go-in-supporting-humans/https://ksc.asia/en/blog/how-far-will-ai-go-in-supporting-humans/Recently, a paper about AI sycophancy has been getting attention.Thu, 08 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/maybe-that-programming-puzzle-was-right-all-along/https://ksc.asia/en/blog/maybe-that-programming-puzzle-was-right-all-along/Recently, I found myself thinking back to programming education from about ten years ago.Wed, 07 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-do-japanese-engineers-get-so-tense-on-social-media/https://ksc.asia/en/blog/why-do-japanese-engineers-get-so-tense-on-social-media/Over the weekend, I was watching a few technical exchanges on X.Sun, 04 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-twilight-of-offshore-development-and-a-slightly-strange/https://ksc.asia/en/blog/the-twilight-of-offshore-development-and-a-slightly-strange/While working these days by having AI write code for me, I suddenly remembered something from the past.Sat, 03 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/from-an-engineers-perspective-what-is-the-difference/https://ksc.asia/en/blog/from-an-engineers-perspective-what-is-the-difference/Recently, whenever people talk about AI, the word "GPU" almost always comes up.Thu, 01 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/how-much-english-do-engineers-need-in-the-vibe-coding-era/https://ksc.asia/en/blog/how-much-english-do-engineers-need-in-the-vibe-coding-era/Recently, I have been seeing the term "vibe coding" quite often.Thu, 01 Oct 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-self-checkout-incident-and-the-fear-of-not-knowing/https://ksc.asia/en/blog/the-self-checkout-incident-and-the-fear-of-not-knowing/Today, something slightly strange happened at a convenience store.Tue, 29 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/even-unreasonable-things-have-their-reasons/https://ksc.asia/en/blog/even-unreasonable-things-have-their-reasons/Yesterday, I was half-watching a world history lecture on YouTube when the topic turned to the Hindu social hierarchy.Mon, 28 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/claude-code-codex-and-todays-development-desk/https://ksc.asia/en/blog/claude-code-codex-and-todays-development-desk/Lately, my development environment has gradually started to settle down.Sun, 27 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-day-a-semiconductor-company-surpassed-toyota/https://ksc.asia/en/blog/the-day-a-semiconductor-company-surpassed-toyota/I found myself thinking for a while after seeing the news.Sat, 26 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/how-i-lost-half-a-day-even-in-the-ai-era-humans-still-make/https://ksc.asia/en/blog/how-i-lost-half-a-day-even-in-the-ai-era-humans-still-make/Today I am reflecting on a mistake.Fri, 25 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/is-the-era-of-learning-how-to-use-claude-code-coming-to-an/https://ksc.asia/en/blog/is-the-era-of-learning-how-to-use-claude-code-coming-to-an/Recently, I ran into a fairly large modification task.Sun, 20 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/volume-wins-but-only-after-you-learn-the-form/https://ksc.asia/en/blog/volume-wins-but-only-after-you-learn-the-form/Recently, I have been thinking about this again.Fri, 18 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/monitoring-work-and-the-path-i-did-not-choose/https://ksc.asia/en/blog/monitoring-work-and-the-path-i-did-not-choose/There will be a reunion soon for a company I used to work for.Wed, 16 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/rereading-the-courage-to-be-disliked-left-me-with-a-small/https://ksc.asia/en/blog/rereading-the-courage-to-be-disliked-left-me-with-a-small/The other day, I reread The Courage to Be Disliked for the first time in a while.Tue, 15 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/seaside-life-and-the-disappearance-of-slack/https://ksc.asia/en/blog/seaside-life-and-the-disappearance-of-slack/Yesterday, the temperature went above 30 degrees Celsius.Fri, 11 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/my-discomfort-with-japans-ai-business-what-does-born-in/https://ksc.asia/en/blog/my-discomfort-with-japans-ai-business-what-does-born-in/Recently, I keep seeing the name Sakana AI.Thu, 10 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-memory-paradox-do-i-actually-want-ai-to-remember-me/https://ksc.asia/en/blog/the-memory-paradox-do-i-actually-want-ai-to-remember-me/The other day, Claude Opus 4.8 was released.Mon, 07 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/a-sinking-ship-with-ten-captains-what-i-learned-about-the/https://ksc.asia/en/blog/a-sinking-ship-with-ten-captains-what-i-learned-about-the/Today, I found myself remembering something from a long time ago.Tue, 01 Sep 2026 00:00:00 GMThttps://ksc.asia/en/blog/a-practitioners-sense-of-ai-and-keeping-a-distance-from-the/https://ksc.asia/en/blog/a-practitioners-sense-of-ai-and-keeping-a-distance-from-the/Lately, when I open YouTube, AI-related videos keep catching my eye. Well, I'm the one searching for them, so of course they get recommended back to me....Mon, 31 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/english-isnt-the-eternal-main-character-the-common-language/https://ksc.asia/en/blog/english-isnt-the-eternal-main-character-the-common-language/Lately I keep seeing the question: "Is English really going to be necessary from here on?"Tue, 25 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/farewell-markdown-in-the-ai-era-half-baked-modern-isnt/https://ksc.asia/en/blog/farewell-markdown-in-the-ai-era-half-baked-modern-isnt/Lately, I've finally become convinced of something.Sat, 22 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/aws-lambda-the-magic-wand-a-service-i-once-built-apparently/https://ksc.asia/en/blog/aws-lambda-the-magic-wand-a-service-i-once-built-apparently/Yesterday I heard a slightly amusing story.Mon, 17 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/will-nice-people-be-the-ones-who-survive-revisiting-toshio/https://ksc.asia/en/blog/will-nice-people-be-the-ones-who-survive-revisiting-toshio/Lately, while watching all the noise around AI and social media, someone suddenly came to mind: Toshio Okada.Sun, 16 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/when-correct-decisions-pile-up-they-dont-always-save-anyone/https://ksc.asia/en/blog/when-correct-decisions-pile-up-they-dont-always-save-anyone/A recent news story about the arrest of a certain baseball manager left me strangely lost in thought.Sat, 15 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/today-let-me-praise-microsoft/https://ksc.asia/en/blog/today-let-me-praise-microsoft/Yesterday I tried to set up a Docker environment on a somewhat old Mac, and for the first time in a while, I got spectacularly stuck.Fri, 14 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/watching-the-deepseek-distillation-controversy-is-it-theft/https://ksc.asia/en/blog/watching-the-deepseek-distillation-controversy-is-it-theft/Watching the recent DeepSeek controversy, I can't shake a strange feeling.Wed, 12 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/water-molecules-fluid-dynamics-and-the-line-between/https://ksc.asia/en/blog/water-molecules-fluid-dynamics-and-the-line-between/Lately, I've been studying "why AI actually works" all over again.Tue, 11 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/is-what-are-you-looking-at-really-rude-the-vibe-that-comes/https://ksc.asia/en/blog/is-what-are-you-looking-at-really-rude-the-vibe-that-comes/I was just watching a YouTuber who teaches English, and they said:Mon, 10 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/building-a-rag-chat-system-the-hardest-part-was/https://ksc.asia/en/blog/building-a-rag-chat-system-the-hardest-part-was/In an earlier blog post, I wrote about building a chat system using RAG.Sun, 09 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-rag-system-i-was-building-until-last-year-customizing/https://ksc.asia/en/blog/the-rag-system-i-was-building-until-last-year-customizing/Until around May of last year, I was building an AI-powered internal chat system.Sat, 08 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/is-ais-danger-really-dangerous-some-recent-thoughts/https://ksc.asia/en/blog/is-ais-danger-really-dangerous-some-recent-thoughts/Watching the recent news around Anthropic's new model releases, I started to wonder.Thu, 06 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/when-the-4-pm-school-bell-makes-the-servers-groan-heavy/https://ksc.asia/en/blog/when-the-4-pm-school-bell-makes-the-servers-groan-heavy/When you run a service for schools, the traffic waves are genuinely extreme.Wed, 05 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-overconfidence-that-derailed-200-people-and-dragged-us/https://ksc.asia/en/blog/the-overconfidence-that-derailed-200-people-and-dragged-us/There is exactly one project in my engineering career that escalated all the way to a courtroom.Tue, 04 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/over-optimization-backfires-my-rookie-memory-upgrade/https://ksc.asia/en/blog/over-optimization-backfires-my-rookie-memory-upgrade/When you've been an engineer for a long time, it's easy to start believing that "efficiency is justice."Sun, 02 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/companies-that-treat-engineers-like-mcdonalds-crew-end-up/https://ksc.asia/en/blog/companies-that-treat-engineers-like-mcdonalds-crew-end-up/I once worked on maintenance and development for an entertainment service.Sat, 01 Aug 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-one-resignation-can-bring-a-whole-company-down-like-an/https://ksc.asia/en/blog/why-one-resignation-can-bring-a-whole-company-down-like-an/It's a strange thing, but a company can suddenly start losing people in a chain reaction, all triggered by a single person quitting.Fri, 31 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/where-did-the-200k-prompt-engineers-go-why-domain-experts/https://ksc.asia/en/blog/where-did-the-200k-prompt-engineers-go-why-domain-experts/A few years back, you saw these headlines everywhere.Thu, 30 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-right-distance-from-laws-of-success-why-do-people-keep/https://ksc.asia/en/blog/the-right-distance-from-laws-of-success-why-do-people-keep/The world is flooded with so-called "laws of success."Tue, 28 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/what-did-ipa-advanced-certifications-bring-to-a-30-year/https://ksc.asia/en/blog/what-did-ipa-advanced-certifications-bring-to-a-30-year/Recently, I came across news that IPA's advanced exams are being revamped again — leaning more toward DX (digital transformation).Mon, 27 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-reality-of-a-no-experience-career-change-to-engineering/https://ksc.asia/en/blog/the-reality-of-a-no-experience-career-change-to-engineering/Recently I've been seeing those "Become an engineer from zero experience!" ads again.Sun, 26 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/ai-era-git-keep-working-history-messy-keep-main-clean/https://ksc.asia/en/blog/ai-era-git-keep-working-history-messy-keep-main-clean/I caught myself chuckling at Git history today.Tue, 21 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/unreasonable-security-rules-push-engineers-to-hunt-for/https://ksc.asia/en/blog/unreasonable-security-rules-push-engineers-to-hunt-for/It's been nearly 20 years now, so I figure the statute of limitations has run out. Time to write this one down.Mon, 20 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/design-first-is-right-but-in-the-ai-era-think-while-you/https://ksc.asia/en/blog/design-first-is-right-but-in-the-ai-era-think-while-you/In a previous blog post, I wrote:Sun, 19 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/heinrichs-law-in-the-ai-era-the-rise-of-quiet-mistakes/https://ksc.asia/en/blog/heinrichs-law-in-the-ai-era-the-rise-of-quiet-mistakes/A few weeks ago, a story made some noise: Anthropic — the company behind the AI coding agent "Claude Code" — reportedly leaked parts of its own source c…Sat, 18 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/ai-boosts-productivity-but-doesnt-make-work-easier/https://ksc.asia/en/blog/ai-boosts-productivity-but-doesnt-make-work-easier/Lately, listening to people talk about AI, something keeps nagging at me.Fri, 17 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/japanese-as-a-dynamically-typed-language/https://ksc.asia/en/blog/japanese-as-a-dynamically-typed-language/Lately, writing this blog in English, something keeps coming back to me.Mon, 13 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-courage-to-subtract-reducing-100-pieces-of-information/https://ksc.asia/en/blog/the-courage-to-subtract-reducing-100-pieces-of-information/I was looking back at a document I had made earlier and suddenly thought:Sun, 12 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/is-frontendbackend-separation-already-outdated-the-paradox/https://ksc.asia/en/blog/is-frontendbackend-separation-already-outdated-the-paradox/Working with React and Next.js lately, I sometimes catch myself thinking:Wed, 08 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-night-my-name-rolled-in-the-credits/https://ksc.asia/en/blog/the-night-my-name-rolled-in-the-credits/I once did some work for an entertainment TV show.Mon, 06 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/maybe-what-survives-in-the-ai-era-is-not-a-job-category-but/https://ksc.asia/en/blog/maybe-what-survives-in-the-ai-era-is-not-a-job-category-but/Recently, I often see people saying, "The future belongs to blue-collar workers."Sun, 05 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/back-when-php-was-a-revolutionary/https://ksc.asia/en/blog/back-when-php-was-a-revolutionary/I've been touching some PHP code recently, and a thought hit me:Sat, 04 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-indian-engineer-who-said-im-out-and-vanished-honestly/https://ksc.asia/en/blog/the-indian-engineer-who-said-im-out-and-vanished-honestly/Something I've been thinking about lately.Thu, 02 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-got-headhunted-to-lead-engineering-at-a-megaventure-i/https://ksc.asia/en/blog/i-got-headhunted-to-lead-engineering-at-a-megaventure-i/In my late 30s, I was riding pretty high.Wed, 01 Jul 2026 00:00:00 GMThttps://ksc.asia/en/blog/ai-era-engineers-as-airline-pilots/https://ksc.asia/en/blog/ai-era-engineers-as-airline-pilots/Modern airline pilots don't actually fly the plane the entire time.Mon, 29 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/decluttering-why-i-quit-studying-chinese/https://ksc.asia/en/blog/decluttering-why-i-quit-studying-chinese/"Japanese people have an advantage in Chinese because they already know kanji (Chinese characters used in Japanese writing)."Fri, 26 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/do-it-engineers-need-a-college-degree-maybe-easier-with-one/https://ksc.asia/en/blog/do-it-engineers-need-a-college-degree-maybe-easier-with-one/"You don't really need a degree to be an IT engineer, right?"Thu, 25 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-japanese-contracts-are-so-thin-probably-kotodama-and/https://ksc.asia/en/blog/why-japanese-contracts-are-so-thin-probably-kotodama-and/When you look at contracts from overseas, sometimes it's genuinely shocking. They just go on forever.Tue, 23 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/will-quantum-computers-really-arrive-at-least-i-dont-think/https://ksc.asia/en/blog/will-quantum-computers-really-arrive-at-least-i-dont-think/Lately, I keep seeing articles saying "After AI, it's quantum computing!"Mon, 22 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/new-year-at-shinto-shrines-weddings-at-churches-funerals-at/https://ksc.asia/en/blog/new-year-at-shinto-shrines-weddings-at-churches-funerals-at/When a foreigner asks a Japanese person, "What's your religion?", most can't answer right away.Sat, 20 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-thought-vector-db-was-a-new-tech-to-learn-turns-out-id/https://ksc.asia/en/blog/i-thought-vector-db-was-a-new-tech-to-learn-turns-out-id/Lately, I keep seeing the term "vector database" in tech articles.Fri, 19 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/be-careful-right-after-switching-jobs/https://ksc.asia/en/blog/be-careful-right-after-switching-jobs/The period right after switching jobs is actually pretty dangerous.Wed, 17 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/pms-who-dont-respect-their-teams-time-usually-break-the/https://ksc.asia/en/blog/pms-who-dont-respect-their-teams-time-usually-break-the/You've met this person before. Probably more than once.Tue, 16 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-i-stopped-using-playwright-mcp-during-development/https://ksc.asia/en/blog/why-i-stopped-using-playwright-mcp-during-development/A small disclaimer before I start. A certain slice of engineers, online, will open a technical post not with the argument but with "you're using the ter…Mon, 15 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/even-steve-jobs-has-a-replacement/https://ksc.asia/en/blog/even-steve-jobs-has-a-replacement/A Japanese comedian named Kazlaser once said:Sun, 14 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/what-exactly-is-a-shogun/https://ksc.asia/en/blog/what-exactly-is-a-shogun/I wrote about Japanese castles the other day, so today let's talk about Japanese history.Sat, 13 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-replace-all-legacy-with-ai-is-a-dangerous-idea/https://ksc.asia/en/blog/why-replace-all-legacy-with-ai-is-a-dangerous-idea/Recently, there has been talk about DOGE — the government reform team associated with Elon Musk — attempting to overhaul the COBOL-based U.S. Social Sec…Thu, 11 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/japans-mysterious-resignation-time-contracts/https://ksc.asia/en/blog/japans-mysterious-resignation-time-contracts/In Japan, when you quit a company, you're sometimes made to sign pledges like:Wed, 10 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/there-are-two-kinds-of-japanese-castles/https://ksc.asia/en/blog/there-are-two-kinds-of-japanese-castles/Today's topic has nothing to do with IT.Tue, 09 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-story-of-realizing-im-not-cut-out-for-pm-and-running/https://ksc.asia/en/blog/the-story-of-realizing-im-not-cut-out-for-pm-and-running/Being a project manager is hard.Mon, 08 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/theres-no-fix-for-a-blame-shifting-culture/https://ksc.asia/en/blog/theres-no-fix-for-a-blame-shifting-culture/Years ago, I caused a production incident.Sun, 07 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/when-in-doubt-just-dump-it-in-auto-memory/https://ksc.asia/en/blog/when-in-doubt-just-dump-it-in-auto-memory/Touching Claude Code, the first thing you hit is the question:Sat, 06 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/are-you-actually-using-mcp/https://ksc.asia/en/blog/are-you-actually-using-mcp/Honestly, I barely use it for development.Fri, 05 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/waterfall-comeback-end-of-agile-what-development-means-in/https://ksc.asia/en/blog/waterfall-comeback-end-of-agile-what-development-means-in/Lately, since I started seriously embedding AI agents into my development workflow, something has been on my mind.Thu, 04 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/what-actually-happened-to-the-carriage-drivers/https://ksc.asia/en/blog/what-actually-happened-to-the-carriage-drivers/Honestly, I'm a little scared too.Tue, 02 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-practice-alone-isnt-enough-for-engineers/https://ksc.asia/en/blog/why-practice-alone-isnt-enough-for-engineers/For programmers and engineers, hands-on practice is fundamental.Mon, 01 Jun 2026 00:00:00 GMThttps://ksc.asia/en/blog/inside-ses-the-reality-of-japans-engineer-dispatch-industry/https://ksc.asia/en/blog/inside-ses-the-reality-of-japans-engineer-dispatch-industry/Japan has an enormous number of companies whose primary business isn't building software — it's dispatching engineers to client sites.Sat, 30 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/an-ai-deleted-a-companys-database-in-9-seconds-the-scary/https://ksc.asia/en/blog/an-ai-deleted-a-companys-database-in-9-seconds-the-scary/Recently, the story of an AI agent wiping out a production database has been making the rounds.Wed, 27 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/ais-potemkin-understanding-is-a-little-unsettling/https://ksc.asia/en/blog/ais-potemkin-understanding-is-a-little-unsettling/"Potemkin understanding."Tue, 26 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/in-the-ai-era-people-who-can-explain-beat-people-who-can/https://ksc.asia/en/blog/in-the-ai-era-people-who-can-explain-beat-people-who-can/I've been reading that oral exams are quietly making a comeback at US universities lately.Mon, 25 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/ai-gives-correct-answers-but-rarely-makes-weird-inventions/https://ksc.asia/en/blog/ai-gives-correct-answers-but-rarely-makes-weird-inventions/I've been using AI constantly lately.Sun, 24 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/will-that-hot-new-ai-tool-still-be-around-in-5-years/https://ksc.asia/en/blog/will-that-hot-new-ai-tool-still-be-around-in-5-years/The AI world has been moving at a frankly insane pace lately.Thu, 21 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/getting-annoyed-at-ai-the-philosophical-zombie/https://ksc.asia/en/blog/getting-annoyed-at-ai-the-philosophical-zombie/When you use AI every day, there are moments you genuinely get pissed off.Wed, 20 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-tried-obsidian-claude-code-personally-i-couldnt-justify/https://ksc.asia/en/blog/i-tried-obsidian-claude-code-personally-i-couldnt-justify/Lately I've been seeing "Obsidian + Claude Code is a strong combo" everywhere.Thu, 14 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/in-japan-overconfident-people-arent-really-liked/https://ksc.asia/en/blog/in-japan-overconfident-people-arent-really-liked/The other day, I watched a YouTube video by a freelance project manager. Apparently work has been drying up lately and they've been struggling to land g…Mon, 11 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/if-you-use-ai-dont-compromise-on-quality/https://ksc.asia/en/blog/if-you-use-ai-dont-compromise-on-quality/I recently read an article about how AI is being used at work.Sun, 10 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-era-of-humans-reviewing-all-ai-generated-code-is-ending/https://ksc.asia/en/blog/the-era-of-humans-reviewing-all-ai-generated-code-is-ending/Bottom line: doing reviews the way we always did doesn't make sense anymore.Sat, 09 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/reinventing-the-wheel-is-underrated/https://ksc.asia/en/blog/reinventing-the-wheel-is-underrated/There's a piece of advice you hear constantly in software engineering: "Don't reinvent the wheel."Fri, 08 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/when-claude-code-wont-let-you-log-in-fall-back-to-codex/https://ksc.asia/en/blog/when-claude-code-wont-let-you-log-in-fall-back-to-codex/One day, I could not log in to Claude Code.Thu, 07 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/raising-claude-code-part-1-concepts/https://ksc.asia/en/blog/raising-claude-code-part-1-concepts/It's a long holiday in Japan, so I had time to write up how to actually "raise" Claude Code in a real environment. Since it's long for one blog post, I'…Wed, 06 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/raising-claude-code-part-3-persuasion/https://ksc.asia/en/blog/raising-claude-code-part-3-persuasion/In Part 2 I covered enforcement (permissions.deny for prohibition + Hooks for automation).Wed, 06 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/raising-claude-code-part-5-subagent-implementation/https://ksc.asia/en/blog/raising-claude-code-part-5-subagent-implementation/Part 4 (Extension) covered when to use Skills vs Subagents — the conceptual side.Wed, 06 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/raising-claude-code-part-6-operations/https://ksc.asia/en/blog/raising-claude-code-part-6-operations/Across the previous five posts I covered the mechanisms for raising Claude Code:Wed, 06 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/raising-claude-code-part-2-enforcement/https://ksc.asia/en/blog/raising-claude-code-part-2-enforcement/In Part 1 I drew the line between "persuasion" and "enforcement."Wed, 06 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/raising-claude-code-part-4-extension/https://ksc.asia/en/blog/raising-claude-code-part-4-extension/CLAUDE.md (persuasion) and settings.json (enforcement) carry you a long way. But sooner or later you hit limits.Wed, 06 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/web-system-migration-isnt-always-the-right-call/https://ksc.asia/en/blog/web-system-migration-isnt-always-the-right-call/If you've been in this work long enough, this proposal keeps coming back:Tue, 05 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-its-too-early-to-organize-ai-agents/https://ksc.asia/en/blog/why-its-too-early-to-organize-ai-agents/Lately, this is everywhere in the AI world.Mon, 04 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/ai-is-closing-the-junior-engineer-pipeline/https://ksc.asia/en/blog/ai-is-closing-the-junior-engineer-pipeline/AI is often called a "magic box," but I think that's only half right.Sun, 03 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-gave-up-consolelog-redesigning-frontend-logs-for-ai/https://ksc.asia/en/blog/i-gave-up-consolelog-redesigning-frontend-logs-for-ai/React development with Claude Code has one quietly annoying chore — checking the browser console.Sat, 02 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/if-you-run-claude-code-in-parallel-use-git-worktree/https://ksc.asia/en/blog/if-you-run-claude-code-in-parallel-use-git-worktree/When you're driving Claude Code in a single session, you start to notice something — there's a surprising amount of dead time:Fri, 01 May 2026 00:00:00 GMThttps://ksc.asia/en/blog/drinks-with-an-engineer-who-said-ai-is-useless/https://ksc.asia/en/blog/drinks-with-an-engineer-who-said-ai-is-useless/Earlier this year I caught up with an engineer friend over drinks. We hadn't seen each other in a while, and somewhere between the second and third roun…Wed, 29 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/how-a-semi-automatic-review-harness-stabilized-my-claude/https://ksc.asia/en/blog/how-a-semi-automatic-review-harness-stabilized-my-claude/Claude Code, used as-is, is unstable.Tue, 28 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/surviving-as-a-50-something-freelance-engineer-in-japan/https://ksc.asia/en/blog/surviving-as-a-50-something-freelance-engineer-in-japan/In Japan, age discrimination is real.Mon, 27 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/todays-tip-treat-aws-access-keys-as-one-time-credentials/https://ksc.asia/en/blog/todays-tip-treat-aws-access-keys-as-one-time-credentials/Letting AI interact with AWS is incredibly useful.Fri, 24 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/its-okay-to-see-work-as-just-for-the-money/https://ksc.asia/en/blog/its-okay-to-see-work-as-just-for-the-money/In any kind of work, you'll inevitably run into difficult people or clients who just don't fit.Tue, 21 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/if-only-we-had-ai-back-then/https://ksc.asia/en/blog/if-only-we-had-ai-back-then/The other day, I was catching up with an engineer friend I've worked with for years,Mon, 20 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/when-an-ios-update-killed-my-certificates-a-real-story/https://ksc.asia/en/blog/when-an-ios-update-killed-my-certificates-a-real-story/After updating iOS, a few websites suddenly stopped loading on my phone.Sat, 11 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/poor-language-skills-and-intelligence-are-different-but/https://ksc.asia/en/blog/poor-language-skills-and-intelligence-are-different-but/Let me be honest about something.Tue, 07 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/how-stateless-purism-broke-our-system/https://ksc.asia/en/blog/how-stateless-purism-broke-our-system/An infrastructure-focused engineer joined our project mid-way through.Sun, 05 Apr 2026 00:00:00 GMThttps://ksc.asia/en/blog/a-small-trick-to-help-claude-code-understand-your-design/https://ksc.asia/en/blog/a-small-trick-to-help-claude-code-understand-your-design/Claude Code is weak at frontend.Sat, 28 Mar 2026 00:00:00 GMThttps://ksc.asia/en/blog/enterprise-search-in-japanese-why-we-switched-from-kuromoji/https://ksc.asia/en/blog/enterprise-search-in-japanese-why-we-switched-from-kuromoji/On a project, a client came to us with a complaint:Tue, 24 Mar 2026 00:00:00 GMThttps://ksc.asia/en/blog/i-let-ai-handle-my-database-and-lost-everything/https://ksc.asia/en/blog/i-let-ai-handle-my-database-and-lost-everything/I messed up.Fri, 20 Mar 2026 00:00:00 GMThttps://ksc.asia/en/blog/why-ai-cant-replace-design-thinking/https://ksc.asia/en/blog/why-ai-cant-replace-design-thinking/I spent a whole day letting Claude handle a tricky implementation — dynamically generating HTML tables with rowspan and colspan.Wed, 18 Mar 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-real-reason-why-hiring-engineers-in-japan-is-so-hard/https://ksc.asia/en/blog/the-real-reason-why-hiring-engineers-in-japan-is-so-hard/In Japan, we often hear that there's an "engineer shortage."Tue, 17 Mar 2026 00:00:00 GMThttps://ksc.asia/en/blog/the-day-i-realized-pymupdf-is-agpl-lessons-from-an-oss/https://ksc.asia/en/blog/the-day-i-realized-pymupdf-is-agpl-lessons-from-an-oss/A library we picked "because it's convenient" turned out to carry a source code disclosure obligation for our entire project.Sat, 14 Mar 2026 00:00:00 GMT