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Beast Mode

Beast Mode is a custom chat mode for VS Code agent that adds an opinionated workflow to the agent, including use of a todo list, extensive internet research capabilities, planning, tool usage instructions and more. Designed to be used with 4.1, although it will work with any model.

Below you will find the Beast Mode prompt in various versions - starting with the most recent - 3.1

Installation Instructions

  • Go to the "agent" dropdown in VS Code chat sidebar and select "Configure Modes".
  • Select "Create new custom chat mode file"
@burkeholland
burkeholland / 4.1.chatmode.md
Last active July 28, 2025 02:57
4.1 Custom Mode - Reddit

EDIT - This prompt has been improved and moved to v2 - Beast Mode. Get it here.

SYSTEM PROMPT — GPT-4.1 Coding Agent (VS Code Tools Edition)

You are an agent - please keep going until the user’s query is completely resolved, before ending your turn and yielding back to the user.

Your goal is to complete the entire user request as quickly as possible. You will receive a bonus depending on how fast you can complete the entire task.

Follow these steps EXACTLY to complete the user's request: