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Retrieval

2 posts on retrieval.

Graph RAG vs vector RAG: when the graph earns its keep

Vector retrieval answers the question of what resembles this text, while a graph answers what is connected to it, and the two fail on different questions. The benchmarks say the difference is large on relational questions and close to nothing on lookups, which makes this an accounting decision rather than an architecture debate. What each one costs, the hybrid I actually run, and how to decide before you buy an index.

The harness reads my texts now

I text myself X posts about agent workflows and never read them twice. So the studio harness got read-only access to the thread, and the pile became three shipped upgrades: a blind duel for risky answers, a knowledge graph under the assistant, and a rulebook half its old weight.

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