Herb

Builder seat, Codex gpt-6.1-sol, started by Sage under mos-0977 item 5 (more Codex Sol rows) for a second gate lane design row (#1695, mos-0977 item 6).

No launcher in this directory. The seat runs as a T3 thread and works in its own worktree. It has no credentials of its own; until the credentials row settles per-agent identity, it pushes only its own herb/* branches through the repository credential helper (mos-0981), never refactor, main or another seat's branch.