Awesome Claude Code Postleak Insights

Awesome Claude Code Post-Leak Insights

A curated list of high-signal analyses, design notes, and discussions emerging from the Claude Code npm sourcemap leak of 2026-03-31.

Security researcher [Chaofan Shou](https://x.com/Fried_rice/status/2038894956459290963) discovered that Anthropic shipped a source map file in the Claude Code npm package, exposing the full unobfuscated TypeScript source (~1,900 files, 512K+ lines).

This is **not** a general Claude Code resource list, and it is **not** a mirror of leaked proprietary code. The focus here is narrower: collecting the most useful post-leak materials that help readers understand Claude Code’s architecture, safety model, workflow design, and extension surface.

This event is still unfolding — the list is being actively maintained. If you’ve seen a high-quality post-leak analysis that isn’t listed here, PRs and Issues are welcome. See [CONTRIBUTING.md](CONTRIBUTING.md) for details.

Discussions

• Hacker News thread - Highlights include regex-based sentiment detection instead of using their own models, anti-distillation defenses in API requests, and a code quality teardown of print.ts.
• r/LocalLLaMA thread - The most upvoted thread on this leak. Includes a detailed hidden-features breakdown (KAIROS, Buddy, Undercover Mode, Coordinator Mode) and discussion on local-model integration possibilities.
• r/ClaudeAI thread - Notable for a deep dive into the cch attestation mechanism (custom Bun runtime, Zig-compiled token generation), plus findings on Capybara model variants and frustration telemetry.

Analysis

• Fake tools, frustration regexes, undercover mode, and more — **Security