tweakcc
A CLI tool that upgrades your Claude Code experience with custom system prompts, themes, toolsets, UI tweaks, and performance optimizations.
What is tweakcc?
tweakcc is a CLI tool that patches and customizes Anthropic's Claude Code AI coding assistant. It allows developers to modify system prompts, create custom toolsets, apply themes, and unlock advanced features like AGENTS.md support and performance optimizations. The tool solves the problem of limited customization in the standard Claude Code installation by providing safe, reversible modifications.
Developers using Claude Code who want deeper customization, performance improvements, and access to advanced features not available in the vanilla installation. Particularly valuable for power users who work with multiple toolsets, need specific system prompts, or want to optimize their AI coding workflow.
tweakcc provides unparalleled customization of Claude Code through a safe patching system that works across all installation methods. Unlike manual modifications, it offers an intuitive interface, version-aware prompt management, and the ability to create and share custom configurations while maintaining the ability to revert changes easily.
Overview
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.
Use Cases
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