Customize Claude Code's system prompts, create custom toolsets, input pattern highlighters, themes/thinking verbs/spinners, customize input box & user message styling, support AGENTS.md, unlock private/unreleased features, and much more. Supports both native/npm installs on all platforms.

Claude Code Plugin Marketplace with LSP servers

Customized Claude Code system prompts for use with tweakcc — ~48k bytes smaller, 30% faster, same accuracy

Community themes for Claude Code. Use tweakcc to apply them.

tweakcc claude code trimmed versions

No description available

No description available

tweakcc system prompt patches for Claude Code — explanation over brevity

KAWARIMI - Claude Code ninja-themed customization via tweakcc (NeoCyberSaitama theme, thinking verbs, ASCII banner)

Custom Claude Code system prompts via tweakcc — R. Daneel Olivaw partnership persona, rebalanced reasoning, LSP-first navigation, stripped bloat