buddylist
Codex
Codex contacts run the codex installed on your computer, with the same login, config.toml, AGENTS.md, hooks and MCP servers.
Set it up. Install the Codex CLI and log in:
npm install -g @openai/codex
codex login
It isn't bundled, because its binary is over 300 MB. The app finds codex on your PATH; set BUDDYLIST_CODEX_CLI to use a different one.
Add a contact. Pick Codex as the Service in Add a Contact.
You get the same windows as with Claude:
- streamed replies
- a line for each command, file change, web search and MCP tool call
- Accept / Always allow / Decline invitations
- Nudge to stop
- conversations that pick up where they left off
- suggested reply buttons after questions, using Codex's quick model (controlled by Suggest replies in Settings)
Codex has its own Mode menu:
| Mode | Codex asks before... | Its commands can write... |
|---|---|---|
| Ask before acting | every file change, and most commands | inside the folder |
| Work freely inside this folder | leaving the folder or using the network | inside the folder |
| Read only | changing anything | nowhere |
| Never ask | nothing. Only use it in folders you don't mind breaking | anywhere |
Good to know:
- A message you send while Codex works joins what it is doing, and Codex reads it at its next step. One sent during
/compactor/reviewis turned down. - A new mode, model or effort level applies from the next message you send once Codex is done. Never ask also stops the asking straight away, while Codex is still working.
- Always allow lasts until you quit the app or start a new chat.
- Activities has
/compact,/reviewand your Codex skills./reviewlooks at your uncommitted changes; say what else to look at after it (/review the last commit). - A review never asks before it runs a command, and a mode you just picked only applies to it after your next message.
- Codex has no plan approval here.
- It doesn't report what a reply cost.
In a contact's worktree Codex trusts nothing of the folder, whatever your config.toml says. A worktree's branch can be someone else's pull request, and in a folder it trusts Codex starts the MCP servers in the branch's .codex/config.toml without asking. So a project's .codex/config.toml doesn't apply there. Put what you need in ~/.codex/config.toml. Codex skips the worktree's AGENTS.md too, so the app reads it and passes it on.