Code is a solved problem, software is not. Agents are good at the first, but struggle with the second. So we need to control what they do guide them instead of letting them guest.
2 files for Codex, OpenCode and Claude Code: context-engineering AGENTS.md, context-engineering CLAUDE.md — 803 tokens loaded in every session.
AGENTS.md A 798 tok CLAUDE.md A 5 tok These files are sudoping01/context-engineering's own configuration — they tell 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.