3 files for GitHub Copilot, Codex, OpenCode and Claude Code: obsidian-second-brain-mcp rewrite-prompt.instructions.md, obsidian-second-brain-mcp AGENTS.md, obsidian-second-brain-mcp CLAUDE.md — 286 tokens loaded in every session.
.github/instructions/rewrite-prompt.instructions.md A 72 tok AGENTS.md A 4 tok CLAUDE.md A 210 tok These files are alexsmirnov/obsidian-second-brain-mcp's own configuration — they tell GitHub Copilot, Codex, OpenCode and Claude Code 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.