Codifies the 2026-09-13 agent-runtimes program (item 824222cb): MiniMax verification + reviews, Sonnet spec-ahead tests, MiniMax coders in git worktrees, tests/spec untouched gate, test-merge integration, live verify. Claude-Session: https://claude.ai/code/session_018LRh1S2bHJYhEgrMu3UJx8