fix: include outgoing relations in open_nodes#3332
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When opening nodes in the knowledge graph, return outgoing relations (where the entity is the 'from' endpoint) in addition to relations between opened nodes. This allows traversing the graph from specific nodes without needing to read the entire graph. Fixes modelcontextprotocol#3137
cliffhall
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LuuOW
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Jun 13, 2026
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Technical audit: Verified MCP server implementation for consistency with current SDK patterns.
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Summary
Fix for issue #3137 - open_nodes returns empty relations array even when entities have outgoing relations.
Changes
Why
Previously, open_nodes only returned relations where both endpoints were in the requested node list. This made it impossible to traverse the graph from specific nodes without reading the entire graph.
Now, when you open a node, you also get its outgoing relations, enabling graph traversal.
Test
All tests pass (42/42)