claude-code-system-prompts

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<sub>[**Scroll down for Claude Code's system prompts.**](#claude-code-system-prompts) 👇</sub>

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# Claude Code System Prompts

[![Mentioned in Awesome Claude Code](https://awesome.re/mentioned-badge.svg)](https://github.com/hesreallyhim/awesome-claude-code)

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 v2.1.322](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.1.322) (November 9th, 2026).**  It also contains a [**CHANGELOG.md**](./CHANGELOG.md) for the system prompts across 334 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.**](https://piebald.ai/)

**This repository is updated within minutes of each Claude Code release.  See the [changelog](./CHANGELOG.md), and follow [@PiebaldAI](https://x.com/PiebaldAI) on X for a summary of the system prompt changes in each release.**

> [!note]
> ⭐ **Star** this repository to get notified about new Claude Code versions.  For each new Claude Code version, we create a release on GitHub, which will notify all users who've starred the repository.

---

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&mdash;500+ strings that are constantly changing and moving within a very large minified JS file.

> [!important]
> Want to **modify a particular piece of the system prompt** in your own C