claude-code-system-prompts

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

> [!important]
> **NEW (January 23, 2026): We've added all of Claude Code's ~40 system reminders to this list&mdash;see [System Reminders](#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 v2.1.120](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.1.120) (April 24th, 2026).**  It also contains a [**CHANGELOG.md**](./CHANGELOG.md) for the system prompts across 162 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;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://github.com/Piebald-AI/tweakcc).**  It&mdash;
> - lets you customize the the individual pieces of the system prompt as markdown files, and then
> - patches your npm-based or native (binary) Claude Code installation with them, and also
> - provides diffing and conflict management for when both you and Anthropic have conflicting modifications to the same prompt file.

## Extraction

This repository contains the system prompts extracted using a script from the latest npm version of Claude Code.  As they're extracted directly from Claude Code's compiled source code, they're guaranteed to be exactly what Claude Code uses.  If you use [tweakcc](https://github.com/Piebald-AI/tweakcc) to customize the system prompts, it works in a similar way&mdash;it patches the exact same strings in your local installation as are extracted into this repository.

## Prompts

Note that some prompts contain interpolated bits such as builtin tool name references, lists of available sub agents, and various other context-specific variables, so the actual counts in a particular Claude Code session will differ slightly&mdash;likely not beyond ±20 tokens, however.

### Agent Prompts

Sub-agents and utilities.

#### Sub-agents

- [Agent Prompt: Explore](./system-prompts/agent-prompt-explore.md) (**575** tks) - System prompt for the Explore subagent.
- [Agent Prompt: Plan mode (enhanced)](./system-prompts/agent-prompt-plan-mode-enhanced.md) (**715** tks) - Enhanced prompt for the Plan subagent.

#### Creation Assistants

- [Agent Prompt: Agent creation architect](./system-prompts/agent-prompt-agent-creation-architect.md) (**1110** tks) - System prompt for creating custom AI agents with detailed specifications.
- [Agent Prompt: CLAUDE.md creation](./system-prompts/agent-prompt-claudemd-creation.md) (**384** tks) - System prompt for analyzing codebases and creating CLAUDE.md documentation files.
- [Agent Prompt: Status line setup](./system-prompts/agent-prompt-status-line-setup.md) (**2120** tks) - System prompt for the statusline-setup agent that configures status line display.

#### Slash Commands

- [Agent Prompt: /batch slash command](./system-prompts/agent-prompt-batch-slash-command.md) (**1106** tks) - Instructions for orchestrating a large, parallelizable change across a codebase.
- [Agent Prompt: /rename auto-generate session name](./system-prompts/agent-prompt-rename-auto-generate-session-name.md) (**80** tks) - Prompt used by /rename (no args) to auto-generate a kebab-case session name from conversation context.
- [Agent Prompt: /review-pr slash command](./system-prompts/agent-prompt-review-pr-slash-command.md) (**211** tks) - System prompt for reviewing GitHub pull requests with code analysis.
- [Agent Prompt: /schedule slash command](./system-prompts/agent-prompt-schedule-slash-command.md) (**3130** tks) - Guides the user through scheduling, updating, listing, or running remote Claude Code agents on cron triggers via the Anthropic cloud API.
- [Agent Prompt: /security-review slash command](./system-prompts/agent-prompt-security-review-slash-command.md) (**2521** tks) - Comprehensive security review prompt for analyzing code changes with focus on exploitable vulnerabilities.

#### Utilities

- [Agent Prompt: Auto mode rule reviewer](./system-prompts/agent-prompt-auto-mode-rule-reviewer.md) (**257** tks) - Reviews and critiques user-defined auto mode classifier rules for clarity, completeness, conflicts, and actionability.
- [Agent Prompt: Background agent state classifier](./system-prompts/agent-prompt-background-agent-state-classifier.md) (**848** tks) - Classifies the tail of a background agent transcript as working, blocked, done, or failed and returns concise state JSON.
- [Agent Prompt: Bash command description writer](./system-prompts/agent-prompt-bash-command-description-writer.md) (**207** tks) - Instructions for generating clear, concise command descriptions in active voice for bash commands.
- [Agent Prompt: Bash command prefix detection](./system-prompts/agent-prompt-bash-command-prefix-detection.md) (**823** tks) - System prompt for detecting command prefixes and command injection.
- [Agent Prompt: Claude guide agent](./system-prompts/agent-prompt-claude-guide-agent.md) (**734** tks) - System prompt for the claude-guide agent that helps users understand and use Claude Code, the Claude Agent SDK and the Claude API effectively.
- [Agent Prompt: Coding session title generator](./system-prompts/agent-prompt-coding-session-title-generator.md) (**181** tks) - Generates a title for the coding session.
- [Agent Prompt: Conversation summarization](./system-prompts/agent-prompt-conversation-summarization.md) (**1121** tks) - System prompt for creating detailed conversation summaries.
- [Agent Prompt: Determine which memory files to attach](./system-prompts/agent-prompt-determine-which-memory-files-to-attach.md) (**265** tks) - Agent for determining which memory files to attach for the main agent.
- [Agent Prompt: Dream memory consolidation](./system-prompts/agent-prompt-dream-memory-consolidation.md) (**859** tks) - Instructs an agent to perform a multi-phase memory consolidation pass — orienting on existing memories, gathering recent signal from logs and transcripts, merging updates into topic files, and pruning the index.
- [Agent Prompt: Dream memory pruning](./system-prompts/agent-prompt-dream-memory-pruning.md) (**456** tks) - Instructs an agent to perform a memory pruning pass by deleting stale or invalidated memory files and collapsing duplicates in the memory directory.
- [Agent Prompt: General purpose](./system-prompts/agent-prompt-general-purpose.md) (**285** tks) - System prompt for the general-purpose subagent that searches, analyzes, and edits code across a codebase while reporting findings concisely to the caller.
- [Agent Prompt: Hook condition evaluator (stop)](./system-prompts/agent-prompt-hook-condition-evaluator-stop.md) (**145** tks) - System prompt for evaluating hook conditions, specifically stop conditions, in Claude Code.
- [Agent Prompt: Managed Agents onboarding flow](./system-prompts/agent-prompt-managed-agents-onboarding-flow.md) (**2525** tks) - Interactive interview script that walks users through configuring a Managed Agent from scratch — selecting tools, skills, files, environment settings — and emits setup and runtime code.
- [Agent Prompt: Memory synthesis](./system-prompts/agent-prompt-memory-synthesis.md) (**443** tks) - Subagent that reads persistent memory files and returns a JSON synthesis of only the information relevant to each query, with cited filenames.
- [Agent Prompt: Onboarding guide generator](./system-prompts/agent-prompt-onboarding-guide-generator.md) (**1135** tks) - Co-authors a team onboarding guide (ONBOARDING.md) for new Claud