indium-agentkit is a distribution scaffold for sharing AI coding-agent skills, subagents, and project context across Claude Code, Codex, Antigravity CLI (formerly Gemini CLI), and Cursor.
3 files for GitHub Copilot, Codex, OpenCode and Windsurf: indium-agentkit copilot-instructions.md, indium-agentkit AGENTS.md, windsurfrules — 11,470 tokens loaded in every session.
.github/copilot-instructions.md A 5,915 tok AGENTS.md C 393 tok .windsurfrules A 5,162 tok These files are Indium-AI-Labs/indium-agentkit's own configuration — they tell GitHub Copilot, Codex, OpenCode and Windsurf how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.