Claude System Prompts Exposed via Git-Based Extraction
Simon Willison has created a git-based tool to track the evolution of Anthropic's publicly published Claude system prompts across model versions, enabling structured diff analysis of prompt changes over time. While the underlying prompts are intentionally public, the tooling lowers the barrier for adversarial reconnaissance — making it easier for threat actors to identify shifts in safety constraints, refusal heuristics, or behavioral guardrails between model releases. This kind of systematic prompt archaeology directly supports meta-prompt extraction and jailbreak development workflows.