Feature: Graph-Aware Retrieval — Integrating Cross-Document Graph into the Query Pipeline

[zTgx]

Description

The graph module has implemented graph construction and persistence (DocumentGraphBuilder, DocumentGraph), which automatically rebuilds in the background after indexing. However, the retrieval pipeline currently does not utilize any graph data:

• The retrieval/ module has no references to the graph.
• The agent/ module has no references to the graph.
• Engine::get_graph() only exposes an API and is not used for queries.

Desired Behavior

1. The orchestrator uses graph neighbor information to assist in document selection during the analysis phase.
2. Worker retrieval results can receive score boosting based on graph connections.
3. Support a configuration option to enable/disable graph-aware retrieval.

Related Code

• rust/src/graph/builder.rs — Graph construction logic
• rust/src/client/engine.rs:1069 — rebuild_graph()
• rust/src/agent/orchestrator/analyze.rs — Can integrate graph data