シャドーイング練習: Tragic mistake... Anthropic leaks Claude’s source code - 動画で英語スピーキングを学ぶ
レッスンを作成中...
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Yesterday, the most ironic thing ever happened.
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Anthropic, a $380 billion startup built on the idea of safety first, that advocates for closed-source software for the supposed benefit of humanity,
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a company Elon calls Miss Anthropic, whose logo is definitely not a sphincter, whose CEO has been warning us for years that human programmers will be replaced by AI in six months,
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just accidentally leaked Claude Code's entire source code to the internet at 4am, officially making Anthropic more open than OpenAI.
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Within minutes of the leak, Chaofan Xiao, a security researcher,
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discovered that version 2.1.88 of the Cloud Code NPM package was shipped with a 57MB source map file.
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You know, that file that's only used in development with the full readable source code of your project.
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This holy grail of leaks containing over 500,000 lines of TypeScript code quickly spread across the internet like wildfire.
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Anthropic's legal team courageously issued DMCA takedowns, but by the time they woke up in San Francisco, it was already too late.
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The code was mirrored countless times and cloned by slop tubers like Fireship, which the Supreme Court says I can do legally, by the way, as a world-renowned journalist.
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I know a lot about the law and various other lawyerings, um...
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In today's video, we'll look at all of the incredible discoveries in the code that Anthropic doesn't want you to know about.
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Like its anti-distillation poison pills, its mysterious unreleased features, its undercover mode, its regular expression-based frustration detector,
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and many other super-secret techniques at the foreskin of AI research.
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No, this is not an April Fool's Day joke, it is April 1st, 2026, and you're watching the code report.
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Unfortunately, my lawyer just informed me that showing you Anthropik's TypeScript code would be a violation of my parole, and I refuse to go back to jail.
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But luckily, the open source community has already created a loophole.
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Ironically, Claude's most prolific user used OpenAI Codex to rewrite Claude Code's TypeScript code to Python code, resulting in a new, barely legal project called ClawCode,
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and it's already become the fastest repo in history to surpass 50,000 GitHub stars.
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Not only that, but somebody else slop-forked the leaked code and made it work with any model.
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They're calling this new project OpenClaude, and it makes projects like OpenCode completely obsolete.
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But maybe, now that the code's out in the open, Anthropic will just make it open source.
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Somebody tried to make a pull request with the leaked code, but not surprisingly, it looks like Anthropic already deleted it.
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What a mother-effin' crazy 24 hours, but how did this code end up leaked in the first place?
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Well, as I mentioned, the source map was accidentally packaged in an NPM release, but that's weird because build tools normally strip out source maps automatically.
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Well, Cloud Code is built on BunJS, which as you might recall was recently acquired by Anthropic.
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And it just so happens that about three weeks ago, somebody opened up an issue on GitHub about BunJS serving source maps in production.
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Wouldn't it be ironic
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if the fastest JavaScript runtime in the world also turned out
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to be the fastest way to ship your entire codebase to the internet?
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It's unclear if that was the root cause, and it's also possible that some unfortunate developer did this by accident, or perhaps some rogue developer did it on purpose.
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We may never know the truth, but now it's time for the fun part.
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What did we actually learn from the leak?
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Well first, we learned that Claude uses Axios.
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If you subscribe to my channel, then you know that Axios was compromised by North Korean hackers yesterday.
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The exploit can install a remote access Trojan on anyone using this package, and in theory, if that happened on Anthropic servers, it could be a massive disaster.
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But the next thing we learned is that Claude code is basically just a dynamic prompt sandwich glued together with TypeScript, and not some magical piece of futuristic technology.
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In a basic AI chatbot, you typically have a hidden system prompt that gets combined with your prompt,
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then the base model uses statistics to regurgitate a bunch of data it stole from the internet.
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But in Claude code, things are far more complex, with a total of 11 steps from input to output.
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Somebody already vibe-coded a website that breaks down every step, but the most interesting part about this codebase is
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that it contains tons of hard-coded instructions and guardrails that basically beg Claude to please don't do anything weird.
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Like there's just file after file of these massive hard-coded strings telling Claude to be a good boy.
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And that's kind of surprising, because if this code were ever leaked, it would instantly turn from a black box into a blueprint for Claude's competition.
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And ironically, that's exactly what happened.
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What makes that even more funny, though, is that Claude was actively trying to stop their competition from copying Claude code by implementing anti-distillation poison pills.
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It does that by pretending that certain tools exist, when in reality, they don't exist at all.
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You're a big fat That means if you're some Chinese guy trying to train a new model on Claude's outputs, it's going to talk about tools that don't exist,
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which will point your model in the wrong direction and just make it suck.
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In reality, Claude Code only uses about 25 different tools or so, and now the Claude distillers know exactly what to look for, and they're likely going to have a field day with the Bash tool.
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This file contains over a thousand lines of code that helps the large language model reliably parse and execute Bash commands,
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which might be the single most important feature in an AI coding assistant.
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The next thing we need to talk about, though, is undercover mode, which is a set of instructions that tell Claude to never mention itself in commit messages or outputs,
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where the main idea is to make the outputs look as human as possible.
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The stated purpose of this feature is to prevent things like model codename leaks, but many have speculated that the true purpose is more deceptive,
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like they're trying to covertly use Claude in open-source projects so AI code doesn't get scrutinized when it breaks things catastrophically.
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A very misanthropic idea, indeed.
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But the irony continues.
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Another funny thing found in the code is its regex frustration detector.
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Your state-of-the-art AI model uses simple regular expression matching against your prompt to look for keywords like shit, fuck, cock, balls, and so on,
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to determine if you're not having a good experience coding with Claude.
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If it detects a match, it'll simply log an event.
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The bottom line here is that we're not looking at some sort of alien superintelligence, but rather basic programming concepts that have been around for 50 years combined with a bunch of prompt spaghetti.
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It's all just an illusion.
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On top of that, this codebase has a ton of comments.
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A lot more comments than you would typically find in a human-written codebase.
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And what that tells us is that these comments aren't actually written for humans, but rather for the AI to write its own AI coding tool in an infinite loop.
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But perhaps the biggest problem about this League 4 Anthropic is not the code itself, but rather the feature names and roadmap hidden within the code.
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Like there's a hidden capability under a feature flag called Buddy,
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which appears to be a new Tamagotchi-style companion that every developer can customize and raise like a little digital pet.
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This might just be Anthropik's April Fool's Day joke, but there are also references to Opus 4.7 and a new model called Capybara,
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which might be their new recently-teased Mythos model.
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There's also things like Ultra Plan, Coordinator Mode, and Demon Mode, but perhaps the most interesting is Kairos,
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which is a Greek word for an exact moment in time, or God's time.
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I hate to beat off a dead horse here, but it's a bit ironic that Anthropic didn't get to reveal Kairos at the exact time it wanted to, and instead, God chose the right time.
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The feature itself seems to be some kind of background agent that keeps a daily journal, uses dream mode to consolidate memories, and does work for you in the background on a specific schedule.
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Pretty cool, but at the end of the day, this leak is a pretty huge setback for Anthropic, which hopes to IPO later this year and offload their bags to the retail public.
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And it's yet another reminder that your top secret application is just one NPM publish away from becoming open source, whether you like it or not.
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「Tragic mistake... Anthropic leaks Claude’s source code」を使って、シャドーイングで英語を練習しましょう。
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シャドーイング（Shadowing）は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的：ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影（shadow）」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。