Caveman Prompt File for GitHub Copilot
A lightweight prompt file for GitHub Copilot that makes the agent respond in terse caveman-style speech, cutting a large share of output tokens while keeping technical accuracy, without installing the original package.
This project packages a slash-command prompt file for VS Code and a matching always-on instructions file, based on the original Caveman project's observation that terse, caveman-style phrasing cuts around 75 percent of output tokens, and, with an added mode for classical Chinese phrasing, about 46 percent of input tokens as well, without losing technical substance.
VS Code reads these prompt files directly, while JetBrains and most other IDEs instead need the prompt text copied into Copilot's custom instructions. Make targets install the prompt files globally, so the slash command works in every workspace, or into one specific repository, in either an on-demand or an always-on mode, copying the checked-in files rather than downloading them again. It is licensed MIT.