SkillsLLM

claude-code-system-prompts

by Piebald-AI

Pending

All parts of Claude Code's system prompt, 18 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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JavaScript
Added 12/27/2025
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AI Agentsclaude-codeclaude-code-system-promptssystem-prompts
Installation
# Add to your Claude Code skills
git clone https://github.com/Piebald-AI/claude-code-system-prompts
README.md
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<sub>Scroll down for Claude Code's system prompts. :point_down:</sub>

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Claude Code System Prompts

Mentioned in Awesome Claude Code

[!important] NEW (January 23, 2026): We've added all of Claude Code's ~40 system reminders to this list—see System Reminders.

This repository contains an up-to-date list of all Claude Code's various system prompts and their associated token counts as of Claude Code v2.1.29 (January 31st, 2026). It also contains a CHANGELOG.md for the system prompts across 86 versions since v2.0.14. From the team behind <img src="https://github.com/Piebald-AI/piebald/raw/main/assets/logo.svg" width="15"> Piebald.

This repository is updated within minutes of each Claude Code release. See the changelog, and follow @PiebaldAI on X for a summary of the system prompt changes in each release.

Why multiple "system prompts?"

Claude Code doesn't just have one single string for its system prompt.

Instead, there are:

  • Large portions conditionally added depending on the environment and various configs.
  • Descriptions for builtin tools like Write, Bash, and TodoWrite, and some are fairly large.
  • Separate system prompts for builtin agents like Explore and Plan.
  • Numerous AI-powered utility functions, such as conversation compaction, CLAUDE.md generation, session title generation, etc. featuring their own systems prompts.

The result—110+ strings that are constantly changing and moving within a very large minified JS file.

[!TIP] Want to modify a particular piece of the system prompt in your own Claude Code installation? **Use [tweakcc](https:/...