Codex now remembers across sessions. Decide what it's allowed to learn before it learns the wrong thing

Thu, 29 Oct 2026 16:16:00 +0000

Codex can now carry things it learned in one session into the next. That’s useful when the thing it learned is “this repo runs xUnit through dotnet test”, and expensive when it’s “the staging password is hunter2” or a workaround from a branch that was deleted a month ago. Memories are a recall layer that nobody reviews, which is a reason to configure them on purpose rather than accept whatever your install shipped with.

Config on Tokenise

Codex now remembers across sessions. Decide what it's allowed to learn before it learns the wrong thing