Claude system prompts as a git timeline
TL;DR · AI 摘要
Simon Willison 将 Anthropic 发布的 Claude 系统提示历史转化为 git 时间线，便于追踪和比较不同版本间的变更。
核心要点
- Anthropic 公开了 Claude 各版本系统提示的 Markdown 文档
- 作者将其拆分为按模型和版本组织的文件并模拟 git 提交历史
- 利用 git 工具可高效分析系统提示的演进与差异
Research: Claude system prompts as a git timeline
[Simon Willison’s Weblog](http://simonwillison.net/)
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18th April 2026
ResearchClaude system prompts as a git timeline— Anthropic's published system prompt history for Claude is transformed into a git-based exploration tool, breaking up the monolithic markdown source into granular files and timestamped commits. By structuring extracted prompts per model, family, and revision, researchers can leverage git log, diff, and blame to trace prompt evolution, compare differences, and attribute changes to specific dates—all without manual parsing.
Anthropic publish the system prompts for Claude chat and make that page available as Markdown. I had Claude Code turn that page into separate files for each model and model family with fake git commit dates to enable browsing the changes via the GitHub commit view.
I used this to write my own detailed notes on the changes between Opus 4.6 and 4.7.
Posted 18th April 2026 at 12:25 pm
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This is a beat by Simon Willison, posted on 18th April 2026.
ai 1967generative-ai 1745llms 1712anthropic 272claude 269system-prompts 52
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