drive-codex-in-herdrlisted

# Drive Codex in herdr Run the **interactive** codex TUI in a background herdr pane and prompt it turn after turn over one live thread. Use this over `delegate-to-codex` when the work is conversational, needs approval answers mid-run, or should stay alive after this session ends. One-shot review or edit work is cheaper with `codex exec`. Model default: `-m gpt-5.6-sol -c model_reasoning_effort='"high"'` (`gpt-5.6-luna` + `low` for smoke tests and mechanical work). ## Happy path 1. **Check you are inside herdr.** Everything below talks to the session's socket; from outside you would be driving someone else's panes. ```bash test "${HERDR_ENV:-}" = 1 ``` 2. **Bring up the pane.** `herdr agent start` alone is not enough — see Gotchas for the races it loses. Use the bundled helper, which splits a background pane, retries until the shell accepts an agent, starts codex, clears startup modals, and prints the pane id: ```bash pane=$(codex-pane-up reviewer "$PWD" \ -m gpt-5.6-sol -c model_reasoning_effort='"high"' -s read-only -a never) ``` Pass `-a never` explicitly: it is what makes `-s read-only` a real boundary rather than one an approval can step over (see Gotchas). Edit worker — its own worktree, and a sandbox that can write to it. Resolve the path before handing it over; `--cwd` should not be relative: ```bash slug="codex-$(date +%Y%m%d-%H%M%S)" git worktree add -b "agent/codex/$slug" "../$(basename "$PWD")-$slug"