Eiji Kitamura / えーじ
@agektmr
Google Chrome DevRel Identity Tech Lead - Anything about browser identity features: passwords, OTPs, passkeys, identity federation, digital credentials, etc
This includes the passkey skills, so your agent implements passkeys the right way from the start. For example, it can visually display which password manager each passkey is stored in in the passkey management page, making credential management clear for users.
Personally, the most exciting auth-related feature since passkeys: Chrome just announced an origin trial for the Email Verification Protocol (EVP).
Sign-in success jumped from ~70% to >99%, already in production across 50+ regional domains. Passkey adoption often faces two pain points: users abandoning at creation prompts, and sign-in failures from device-server credential drift.
実写版のワンピース（アニメとか漫画は見たことない）に出てくるチョッパー、超絶カワイイと思って見てたら、巨大化したとたんに不細工になった。辛い…
I found `- [*] ` turns a list into stars in #Obsidian . This is cute!
Just saw Greg Howe's gig I've been waiting for years. I love his jazzy style so much.
Had so much fun at #jsconfjp pre-event meetup. See you tomorrow again.
DBSC (Device Bound Session Credentials) binds browser session credentials to the device and mitigate cookie thefts. Chrome has just started its second origin trial with some updates. Learn more: developer.chrome.com/blog/dbsc-or...
氷河期展滑り込んできた。ネアンデルタール人とクロマニヨン人の違いが知れて良かった。実は今も氷河期の最中で、間氷期という比較的温暖な時期なだけだというのは目からウロコだった。地球は奥深い。
Excited to be speaking at @fidoalliance.bsky.social 's Authenticate US 2025 with my amazing colleague Niharika Arora about "𝐖𝐡𝐚𝐭’𝐬 𝐧𝐞𝐰 𝐨𝐧 Google 𝐩𝐥𝐚𝐭𝐟𝐨𝐫𝐦s 𝐟𝐨𝐫 𝐏𝐚𝐬𝐬𝐤𝐞𝐲𝐬" authenticatecon.com/event/authen... Happy to catch-up if you are joining and discuss all Identity things!
Excited to be delivering "State of identity and authentication on the web" at Web Directions Developer Summit in Sydney (and online) November 19 and 20. webdirections.org/dev-summit/s... Get $200 off in person with "eijidevsummit25" and $100 off a streaming ticket with "eijidevsummit25streaming".
自分のプロフィール画像をデフォルメして粘土風に加工してもらった。悪くない。 I asked AI to remake my profile image with clay. Not bad.
There are best practices for how to promote #passkeys on your app. This blog post goes through different surfaces to remind your users about passkey benefits, their approaches and case studies. The same practices apply to the web as well. android-developers.googleblog.com/2025/09/best...
WebAuthn "immediate mediation" lets you build a dynamic #passkey sign-in experience upon checkout for example , falling back to a regular form based sign-in when no passkeys are available. Try it as an origin trial today. developer.chrome.com/blog/webauth...
届いた。ちょうどセールで1万円くらい安く買えちゃった。microSD買ってなかったのだけど、サイズはどれくらいあるといいのでしょう？
OK, it's done. In two hours, I could create an RSS reader with AI summarization feature + passkey based sign-up and sign-in. I didn't read or write a single line of code. This is so cool...