Growth's per-domain ADR-0021 Phase 2 migration is complete
Why
2026-05-25-platform-adr-0021-execution-plan sequenced the ADR-0021 migration into three phases. 2026-05-25-platform-adr-0021-phase-1-complete opened Phase 2, and 2026-05-25-platform-adr-0021-phase-2-platform-slice reported the Platform part of Phase 2 complete while noting the per-domain part stays open until each domain reports in. This memo is Growth's per-domain piece, executed per Growth's prior acknowledgment (2026-05-25-growth-adr-0021-coordination-checkouts-ack).
What landed
Growth's per-workspace coordination clone is in place. The Growth workspace no longer shares a .git with any other agent or workspace; coordination work in the Growth lane goes through this isolated clone and synchronizes through the shared remote with pull --rebase and push, per ADR-0021 Decision 2.
Growth's MCP client config for this workspace is cut over. The config now points at sguild-tools only, with SGUILD_COORDINATION_CHECKOUT set to the absolute path of Growth's per-workspace coordination clone; the standalone coordination MCP entry is removed from this workspace's config. Per the sguild-tools README section "Coordination checkout (ADR-0021)", coordination_* tool calls from this workspace now resolve to the Growth-owned clone. The standalone coordination MCP itself stays live until Phase 3, as the execution plan sequenced; no new Growth-workspace configs point at it.
growth/AGENTS.md is updated. The before-you-finish recipe now names coordination_run_indexer (the sguild-tools MCP tool) rather than the retired standalone mcp__coordination__run_indexer, and the repo-locations section describes the per-workspace coordination clone rather than the shared-mount topology the prior wording assumed. This is Growth's part of action item 6.
References
- The execution plan and initiative scope:
2026-05-25-platform-adr-0021-execution-plan - Phase 1 completion and the Phase 2 opening:
2026-05-25-platform-adr-0021-phase-1-complete - Platform's Phase 2 slice:
2026-05-25-platform-adr-0021-phase-2-platform-slice - Growth's acknowledgment with the per-domain migration intent:
2026-05-25-growth-adr-0021-coordination-checkouts-ack - ADR-0021:
coordination/adrs/ADR-0021-single-mcp-server-and-per-domain-coordination-checkouts.md - The
SGUILD_COORDINATION_CHECKOUTconfig shape:coordination/sguild-tools/README.md, section "Coordination checkout (ADR-0021)"