Coordinated work: post-review merge go-ahead belongs to the active
coordinator/orchestrator session; solo delivery merges without routine
confirmation as before. 'No self-merge' means no UNREVIEWED self-merge.
Previously this policy existed only as per-host local patches to the
preserved ~/.config/mosaic/AGENTS.md (web1 + sb-it-mgr-0-lt rule 38) and
was lost from E2E-DELIVERY.md on every framework sync. Shipping it in
defaults/AGENTS.md + guides/E2E-DELIVERY.md makes it permanent for fresh
installs and upgrades.
Policy: Jason, 2026-06-11.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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