Claude Code automatic prompt optimization Hook: Google's prompt engineering bible + 5-task meta-prompt | Auto prompt optimization Hook for Claude Code
Latest release v1.2.11 · 2 Jul 2026
2 files for Claude Code: UserPromptSubmit, HookPrompt .
.claude/settings.json A — .claude/settings.json A — These files are KimYx0207/HookPrompt's own configuration — they tell Claude Code how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.