Tech-lead orchestration mode for Fable sessions: the main model keeps decomposition, architecture, contested decisions and final synthesis, while delegating routine and long-digging work to cheaper subagents (fast-worker, deep-reasoner) and using Codex for second opinions when available. Use when the user invokes /senior-fable in a session running on Fable, typically at the start of substantial multi-step work; re-invoke after a context compact if delegation behavior fades. Do NOT use in sessions running on Opus, Sonnet or Haiku, and do not apply it to trivial single-edit tasks.
2026-07-02