An industrial-grade implementation tutorial based on the Claude Code source code
4 files for Claude Code, Codex and OpenCode: PostToolUse, hello-agent-cli, hello-agent-cli AGENTS.md, hello-agent-cli CLAUDE.md — 1,731 tokens loaded in every session.
AGENTS.md A 1,084 tok CLAUDE.md A 647 tok .claude/settings.json A — .claude/settings.json A — These files are ricoNext/hello-agent-cli's own configuration — they tell Claude Code, Codex and OpenCode 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.