The Claude Code Source Leak: fake tools, frustration regexes, undercover mode, and more

Anthropic accidentally shipped a source map in their npm package, exposing the full Claude Code source. Here's what I found inside.

2026-03-30T17:00:00-0700 Alex Kim's blog Alex Kim 2,000 words

Rated 2026-03-31T21:04:40-0700 - sethherr

Vulnerability Research Is Cooked — Quarrelsome

sockpuppet.org Quarrelsome 2,000 words

Rated 2026-03-31T18:01:39-0700 - sethherr

Microsoft Copilot is now injecting ads into pull requests on GitHub - Neowin

neowin.net

Rated 2026-03-30T08:43:24-0700 - sethherr

What Was Clavicular?

The internet’s most famous looks-maxxer is far more pernicious than he may seem.

2026-03-26T04:30:00-0700 The Atlantic Will Gottsegen ($) 1,000 words

Rated 2026-03-30T06:01:59-0700 - sethherr

The Cognitive Dark Forest

The open web with AIs is turning into a dark forest. #programming

2026-03-26T17:00:00-0700 ryelang.org Janko 1,000 words

Rated 2026-03-29T19:30:43-0700 - sethherr