claude-memory/graph/decisions/overlap-memories-duplicated-to-both-target-graphs-during-mig-e30109.md

id	type	title	tags	importance	confidence	created	updated	relations
e301095c-7d4c-45d8-8352-9491e4ad6603	decision	Overlap Memories Duplicated to Both Target Graphs During Migration	cognitive-memory migration multi-graph decision overlap	0.7	0.8	2026-03-01T22:16:56.955400+00:00	2026-03-01T22:17:17.438067+00:00	target type direction strength edge_id 9eb16f9f-c825-4233-b64f-d0acd140374a RELATED_TO outgoing 0.75 6ebdc346-ae42-41d4-b744-472ca17b7e74 target type direction strength edge_id d0d1a325-a308-474a-baf7-6939a76a136b RELATED_TO outgoing 0.75 36a8e59c-08c6-4efe-b154-6277ea5cf1e7 target type direction strength edge_id 9ea72015-0b85-4a42-9ae1-144866f8d86f BUILDS_ON outgoing 0.73 2eee0082-215a-41b9-90bc-ea2d757138ff target type direction strength edge_id 5fb6b3c0-cc6a-4baa-8552-8d2731379b0b RELATED_TO outgoing 0.9 1e0002c1-dc30-446e-bce3-f0a5e5b61663 target type direction strength edge_id 2d6f02bc-5a7c-404d-a566-36107aaaf6e6 RELATED_TO outgoing 0.85 ec7fd770-f40c-4fb0-b359-5284425e580d

Decision: Copy Overlap Memories to Multiple Target Graphs

Context

During migration of memories from default graph to named project graphs, some memories are tagged for multiple projects (e.g., both major-domo and paper-dynasty).

Decision

Overlap memories are COPIED (not moved) to each matching target graph. They remain in the default graph until all migrations complete, then the --cleanup-overlaps flag removes them from default.

Rationale

• Preserves memory context in both project graphs where it's relevant
• Avoids data loss if migration is interrupted partway through
• Keeps default graph clean after all targets are confirmed populated

Implementation Details

• Overlap tracking stored in _migration_overlaps.json
• A memory is an overlap if it matches tag criteria for 2+ target graphs
• Cleanup step verifies presence in all target graphs before deleting from default