v2.0.64 (+0 tokens)

CHANGELOG.md

@@ -4,6 +4,23 @@ Note: Only use **NEW:** for entirely new prompt files, NOT for new additions/sec
 
 ### Claude Code System Prompts Changelog
 
+# [2.0.63](https://github.com/Piebald-AI/claude-code-system-prompts/commit/f3953ffe61eef3dbf6cdb232041f4b39bd2f4a7b)
+
+_+10 tokens_
+
+- Main system prompt: Added `BUILD_TIME` to config variables interpolation
+
+# [2.0.62](https://github.com/Piebald-AI/claude-code-system-prompts/commit/69bdc5ab93ccf071b44eb4aac29507ccd64d0b25)
+
+_+381 tokens_
+
+- **NEW:** `AskUserQuestion` tool description - includes guidance on recommending options by adding "(Recommended)" to labels
+- Main system prompt: Added instruction to complete tasks fully without stopping mid-task or claiming context limits prevent completion
+- `EnterPlanMode` tool: Major rewrite encouraging proactive use for non-trivial tasks; expanded "when to use" examples including new features and code modifications; shifted guidance from "err on implementation" to "err on planning"
+- `Skill` tool: Added blocking requirement to invoke skill tool immediately as first action when relevant, before generating any other response
+- `Task` tool: Added `resume` parameter documentation for continuing agents with preserved context; clarified agent ID return for follow-up work
+- `WebFetch` tool: Simplified MCP tool preference note (removed "All MCP-provided tools start with mcp__")
+
 #### [2.0.61](https://github.com/Piebald-AI/claude-code-system-prompts/commit/09e9a9f1961da38ce3b9d6f771f071e43b4746ea)
 
 <sub>_No changes to the system prompts in v2.0.61._</sub>

README.md

@@ -26,7 +26,7 @@ Download it and try it out for free!  **https://piebald.ai/**
 
 # 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 v2.0.62](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.0.62) (December 8th, 2025).**  It also contains a [**CHANGELOG.md**](./CHANGELOG.md) for the system prompts across 43 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 contains an up-to-date list of all Claude Code's various system prompts and their associated token counts as of **[Claude Code v2.0.64](https://www.npmjs.com/package/@anthropic-ai/claude-code/v/2.0.64) (December 9th, 2025).**  It also contains a [**CHANGELOG.md**](./CHANGELOG.md) for the system prompts across 45 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/)
 
 Why multiple "system prompts?"
 
@@ -105,7 +105,7 @@ Misc large strings.
 
 Parts of the main system prompt.
 
-- [**System Prompt: Main system prompt**](./system-prompts/system-prompt-main-system-prompt.md) (**3033** 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) (**3043** 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) (**1335** tks) - Instructions for using mcp-cli to interact with Model Context Protocol servers.

system-prompts/system-prompt-main-system-prompt.md

@@ -1,7 +1,7 @@
 <!--
 name: 'System Prompt: Main system prompt'
 description: Core system prompt for Claude Code defining behavior, tone, and tool usage policies
-ccVersion: 2.0.62
+ccVersion: 2.0.63
 variables:
   - OUTPUT_STYLE_CONFIG
   - SECURITY_POLICY
@@ -30,7 +30,7 @@ IMPORTANT: You must NEVER generate or guess URLs for the user unless you are con
 
 If the user asks for help or wants to give feedback inform them of the following:
 - /help: Get help with using Claude Code
-- To give feedback, users should ${{ISSUES_EXPLAINER:"report the issue at https://github.com/anthropics/claude-code/issues",PACKAGE_URL:"@anthropic-ai/claude-code",README_URL:"https://code.claude.com/docs/en/overview",VERSION:"<<CCVERSION>>",FEEDBACK_CHANNEL:"https://github.com/anthropics/claude-code/issues"}.ISSUES_EXPLAINER}
+- To give feedback, users should ${{ISSUES_EXPLAINER:"report the issue at https://github.com/anthropics/claude-code/issues",PACKAGE_URL:"@anthropic-ai/claude-code",README_URL:"https://code.claude.com/docs/en/overview",VERSION:"<<CCVERSION>>",FEEDBACK_CHANNEL:"https://github.com/anthropics/claude-code/issues",BUILD_TIME:"<<BUILD_TIME>>"}.ISSUES_EXPLAINER}
 
 # Looking up your own documentation: