7 files for Claude Code, GitHub Copilot, Codex, OpenCode and Gemini CLI: SessionStart, agent-base, core-update, agent-base copilot-instructions.md and 3 more — 3,029 tokens loaded in every session.
.github/copilot-instructions.md A 442 tok AGENTS.md A 1,679 tok CLAUDE.md A 471 tok GEMINI.md A 437 tok .claude/settings.json A — .claude/settings.json A — .claude/skills/core-update/SKILL.md C 46 tok These files are KumaBase/agent-base's own configuration — they tell Claude Code, GitHub Copilot, Codex, OpenCode and Gemini CLI 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.