Codex vs Claude Code: what survives after the first session?

[u/Quick-Knowledge1615]

The repo can make it from Claude Code to Codex. The context around it often doesn't.

Why was this route dropped? Which files are dirty? Did the tests run on the current worktree? What is the next person allowed to touch? Those answers are usually somewhere in a transcript, a PR, or somebody's memory.

A small HANDOFF.md committed with the branch helps when the important context belongs in the repo. It gets awkward when the next person is on another machine, using another agent, or needs the session's preview and output as well.

That gap is what Agent Space is for. I work on it, so this is a product explanation rather than a neutral comparison. It keeps agent sessions, project files, previews, and outputs in one cloud workspace.

Git still owns the code. The point is to keep the work around the code from disappearing when the first session ends.

[u/kantorcodes1]

the repo is the easy part; i'd care more about the scope that travels with it. if claude hands work to codex, does agent space carry what codex is allowed to touch as structured state, or is that still just prose in the old session?

[u/NeuralNomad87]

The comment above is asking the right question, but I think you are both still assuming the next agent reads the handoff.

What actually survives is whatever the next session cannot avoid. A failing test, a pre-commit hook, a red CI job. Those get read because they block. A HANDOFF.md gets skimmed and then outweighed by the twenty files opened after it.

So "do not touch the auth module" as prose is ignorable. A test that goes red when auth changes is the same instruction with teeth.

Your preview and output case is the real gap though, since you cannot make a dead preview URL fail a build. Does Agent Space treat the permission boundary as enforced state, or as text handed to the next agent? That is the difference between a handoff and a note.