fix(memory): reject relations with missing entities#4458

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gingerninja85 wants to merge 1 commit into

modelcontextprotocol:mainfrom

gingerninja85:fix/memory-reject-dangling-relations

gingerninja85 commented Jul 2, 2026

Summary

validate that both endpoints exist before creating memory graph relations
reject missing from or to entities with the same error style used by addObservations
add regression tests that ensure dangling relations are not persisted

Fixes #4457

Test Plan

cd src/memory && npm test
cd src/memory && npm run build


          fix(memory): reject relations with missing entities

9f75c8b

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