Analysis
Claude: System Prompts | Hacker News
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Why it matters
Published Claude system prompts and their version-to-version diffs give defenders insight into how the model is instructed and constrained, which is useful context for reasoning about jailbreak and prompt-injection resistance.
A Hacker News discussion covers Anthropic's publication of Claude's system prompts, including tooling by simonw that reconstructs the prompts as a git history to diff changes between model versions. The thread notes that Anthropic omits tool definitions and Claude Code system prompts, and references an embedded prompt notice about model access being suspended over an alleged jailbreak and export controls.