Claude Code System Prompts
A repository containing all system prompts, tool descriptions, and agent prompts extracted from Claude Code, updated with each release.
What is Claude Code System Prompts?
Claude Code System Prompts is a reference repository that extracts and archives all the internal system prompts, tool descriptions, and agent instructions used by Claude Code. It solves the problem of opacity in AI-powered coding tools by providing developers with a transparent, versioned view of the exact instructions that govern the assistant's behavior, from simple file edits to complex multi-agent planning workflows.
Developers, researchers, and prompt engineers who use or study Claude Code and want to understand its internal logic, track changes between versions, or create custom modifications using tools like `tweakcc`.
It offers unique, direct access to the proprietary prompt set of a leading AI coding assistant, enabling deep customization, behavioral analysis, and educational insight that isn't available through the standard interface.
Overview
All parts of Claude Code's system prompt, 24 builtin tool descriptions, sub agent prompts (Plan/Explore/Task), utility prompts (CLAUDE.md, compact, statusline, magic docs, WebFetch, Bash cmd, security review, agent creation). Updated for each Claude Code version.
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