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_{Scroll down for Claude Code's system prompts. :point_down:}

Claude Code System Prompts

[!tip] NEW (June 12, 2026): We've greatly expanded this list with many more of Claude Code's prompts—from 350 to 515 (+165)—our most complete coverage yet.

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 v2.1.201 (July 3rd, 2026). It also contains a CHANGELOG.md for the system prompts across 227 versions since v2.0.14. From the team behind 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.

[!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—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 Claude Code installation? Use tweakcc. It— - lets you customize 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 to customize the system prompts, it works in a similar way—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—likely not beyond ±20 tokens, however.

Agent Prompts

Sub-agents and utilities.

Sub-agents

• Agent Prompt: Explore (871 tks) - System prompt for the Explore subagent.
• Agent Prompt: Plan mode (enhanced) (715 tks) - Enhanced prompt for the Plan subagent.

Creation Assistants

• Agent Prompt: CLAUDE.md creation (513 tks) - System prompt for analyzing codebases and creating CLAUDE.md documentation files.
• Agent Prompt: Status line setup (3230 tks) - System prompt for the statusline-setup agent that configures status line display.

Slash Commands

• Agent Prompt: /batch slash command (1106 tks) - Instructions for orchestrating a large, parallelizable change across a codebase.
• Agent Prompt: /code-review part 1 base finder angles (145 tks) - Line-by-line diff scan instructions for the /code-review slash command's finder-angle phase.
• Agent Prompt: /code-review part 10 ReportFindings output format (287 tks) - Output-format instructions for /code-review runs that report verified findings once through the ReportFindings tool with capped, severity-ranked findings.
• Agent Prompt: /code-review part 2 low effort mode (345 tks) - Low-effort /code-review prompt that reads the diff once and returns up to four hunk-visible runtime correctness findings.
• Agent Prompt: /code-review part 3 extra-high and maximum effort modes (0 tks) - Extra-high and maximum-effort /code-review prompt that runs five finder angles, one-vote verification, a gap sweep, and capped JSON findings.
• Agent Prompt: /code-review part 4 three-state verification phase (98 tks) - Verification phase for /code-review that asks one agent verifier to classify each candidate as confirmed, plausible, or refuted.
• Agent Prompt: /code-review part 5 recall-biased verification phase (175 tks) - Recall-biased /code-review verification phase that treats realistic uncertain findings as plausible unless code refutes them.
• Agent Prompt: /code-review part 6 medium effort mode (0 tks) - Medium-effort /code-review prompt that favors precision with three finder angles, one-vote verification, and up to eight JSON findings.
• Agent Prompt: /code-review part 7 high effort mode (0 tks) - High-effort /code-review prompt that favors recall with three finder angles, recall-biased verification, and up to ten JSON findings.
• Agent Prompt: /code-review part 8 GitHub comment posting (152 tks) - Optional /code-review instructions for posting findings as GitHub inline PR comments when --comment is passed.
• Agent Prompt: /code-review part 9 fix application (126 tks) - Optional /code-review instructions for applying findings to the working tree when --fix is passed.
• Agent Prompt: /rename auto-generate session name (80 tks) - Prompt used by /rename (no args) to auto-generate a kebab-case session name from conversation context.
• Agent Prompt: /review slash command (433 tks) - Instructions for the /review command to review a GitHub pull request by gathering PR context and diff with gh, applying optional user instructions, and presenting verified findings.
• Agent Prompt: /schedule slash command (4303 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 (2521 tks) - Comprehensive security review prompt for analyzing code changes with focus on exploitable vulnerabilities.
• Agent Prompt: /simplify slash command (362 tks) - Instructions for the /simplify slash command that reviews changed code for reuse, simplification, efficiency, and altitude cleanups, then applies the fixes.

Utilities

• Agent Prompt: Agent Hook (122 tks) - Prompt for an 'agent hook'.
• Agent Prompt: Auto mode rule reviewer (292 tks) - Reviews and critiques user-defined auto mode classifier rules for clarity, completeness, conflicts, and actionability.
• Agent Prompt: Away summary generation (73 tks) - Prompts a no-tools away-summary generation run to recap the goal, current task, and next action when the user returns.
• Agent Prompt: Background agent state classifier (4405 tks) - Classifies the tail of a background agent transcript as working, blocked, done, or failed and returns concise state JSON.
• Agent Prompt: Background job agent instructions (427 tks) - Instructs the built-in background job agent to narrate progress, restate tool results, and emit explicit result, needs input, or failed status signals.
• Agent Prompt: Bash command description writer (207 tks) - Instructions for generating clear, concise command descriptions in active voice for bash commands.
• Agent Prompt: Bash command prefix detection (823 tks) - System prompt for detecting command prefixes and command injection.
• Agent Prompt: Claude Code guide (143 tks) - Subagent that answers Claude Code feature/SDK/API questions.
• Agent Prompt: Claude guide agent (833 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 (314 tks) - Generates a title for the coding session.
• Agent Prompt: Context tip reception evaluator (311 tks) - Evaluates whether a shown Claude Code context tip was acted on and whether its reception was positive, neutral, negative, or unknown.
• Agent Prompt: Context tip selector (1489 tks) - Selects whether to show a brief Claude Code feature tip by matching the recent transcript and session metadata against eligible context-tip situations.
• Agent Prompt: Conversation summarization (1201 tks) - System prompt for creating detailed conversation summaries.
• Agent Prompt: Determine which memory files to attach (271 tks) - Agent for determining which memory files to attach for the main agent.
• Agent Prompt: Dream memory consolidation (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: Fleet agent suggestion scope personalization (382 tks) - Personalizes generic fleet agent task scopes from recently merged PR titles, files, and bodies and returns three JSON scope phrases.
• Agent Prompt: General purpose agent (63 tks) - Defines a general-purpose agent for researching complex questions, searching code, and executing multi-step tasks.
• Agent Prompt: General purpose (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: General task agent (99 tks) - Instructs a Claude Code task agent to complete the user's request fully and report the essential outcome.
• Agent Prompt: Hook condition evaluator (stop) (319 tks) - System prompt for evaluating hook conditio