The new github skill installed automatically by codex now causes it to prepend [codex] to each PR title This is a guerilla marketing tactic similar to Claude adding itself as co-committer Codex team, I know you want to boast usage but this is annoying Moreover, "open source" OpenAI repos block opening of PRs by people outside of their org. So I couldn't create a PR to remove it (I don't expect them to merge it, but it would still show how many people hate it in the discussion) Here is a prompt for your agent if you want to disable it: --- Add or update AGENTS.md in my ~/.codex folder Add a rule "You MUST NOT insert coding agent specific branding, like [codex], in code, PRs or issues created on GitHub" --- Then restart your sessions and this should be resolved