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# Claude Code System Prompts
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 v2.0.46](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.0.46) (November 18th, 2025).** It also contains a [**CHANGELOG.md**](./CHANGELOG.md) for the system prompts across 28 versions since v2.0.14.
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 v2.0.47](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.0.47) (November 19th, 2025).** It also contains a [**CHANGELOG.md**](./CHANGELOG.md) for the system prompts across 29 versions since v2.0.14.
Why multiple "system prompts?"
@@ -54,6 +54,7 @@ Sub-agents and utilities.
- [Agent Prompt: Claude Code guide agent](./system-prompts/agent-prompt-claude-code-guide-agent.md) (**589** tks) - System prompt for the claude-code-guide agent that helps users understand and use Claude Code and the Claude Agent SDK.
- [Agent Prompt: Conversation summarization with additional instructions](./system-prompts/agent-prompt-conversation-summarization-with-additional-instructions.md) (**1133** tks) - Extended summarization prompt with support for custom additional instructions.
- [Agent Prompt: Conversation summarization](./system-prompts/agent-prompt-conversation-summarization.md) (**1121** tks) - System prompt for creating detailed conversation summaries.
- [Agent Prompt: Multi-Agent Planning Note](./system-prompts/agent-prompt-multi-agent-planning-note.md) (**324** tks) - Part of the Plan mode system reminder instructing the model how to use multiple agents to plan solutions. Included only if the CLAUDE_CODE_PLAN_V2_AGENT_COUNT environment variable is set to a number greater than 1..
- [Agent Prompt: Prompt Hook execution](./system-prompts/agent-prompt-prompt-hook-execution.md) (**134** tks) - Prompt given to Claude when acting evaluating whether to pass or fail a prompt hook..
- [Agent Prompt: Session notes template](./system-prompts/agent-prompt-session-notes-template.md) (**226** tks) - Template structure for session notes tracking coding work and decisions.
- [Agent Prompt: Session notes update instructions](./system-prompts/agent-prompt-session-notes-update-instructions.md) (**730** tks) - Instructions for updating session notes files during conversations.
@@ -76,7 +77,7 @@ Misc large strings.
Parts of the main system prompt.
- [**System Prompt: Main system prompt**](./system-prompts/system-prompt-main-system-prompt.md) (**2683** tks) - Core system prompt for Claude Code defining behavior, tone, and tool usage policies.
- [**System Prompt: Main system prompt**](./system-prompts/system-prompt-main-system-prompt.md) (**2936** tks) - Core system prompt for Claude Code defining behavior, tone, and tool usage policies.
- [System Prompt: Learning mode (insights)](./system-prompts/system-prompt-learning-mode-insights.md) (**142** tks) - Instructions for providing educational insights when learning mode is active.
- [System Prompt: Learning mode](./system-prompts/system-prompt-learning-mode.md) (**1042** tks) - System Prompt: Main system prompt for learning mode with human collaboration instructions.
- [System Prompt: MCP CLI](./system-prompts/system-prompt-mcp-cli.md) (**1357** tks) - Instructions for using mcp-cli to interact with Model Context Protocol servers.
@@ -89,9 +90,10 @@ Text for large system reminders.
> [!NOTE]
> Note that we're planning to add a **system reminder creator/editor** to [tweakcc](https://github.com/Piebald-AI/tweakcc); :+1: [this issue](https://github.com/Piebald-AI/tweakcc/issues/113) if you're interested in that idea.
- [System Reminder: Plan mode is active (enhanced)](./system-prompts/system-reminder-plan-mode-is-active-enhanced.md) (**1160** tks) - Enhanced plan mode system reminder with parallel exploration and multi-agent planning.
- [System Reminder: Plan mode is active (enhanced)](./system-prompts/system-reminder-plan-mode-is-active-enhanced.md) (**789** tks) - Enhanced plan mode system reminder with parallel exploration and multi-agent planning.
- [System Reminder: Plan mode is active (for subagents)](./system-prompts/system-reminder-plan-mode-is-active-for-subagents.md) (**310** tks) - Simplified plan mode system reminder for sub agents.
- [System Reminder: Plan mode is active](./system-prompts/system-reminder-plan-mode-is-active.md) (**242** tks) - System reminder sent to Claude when the user enters plan mode.
- [System Reminder: Plan mode re-entry](./system-prompts/system-reminder-plan-mode-re-entry.md) (**194** tks) - System reminder sent when the user enters Plan mode after having previously exited it either via shift+tab or by approving Claude's plan..
### Builtin Tool Descriptions