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Retrieval Done Properly

How does memory stay correct as it grows?

Module 6 of 8 in The Write Path in Earnest · 4 lessons · about 2.8 hours

33. Scope, Then Rank · ~35 min

Apply hard filters on owner, type, and validity before any similarity is computed.

34. Hybrid Ranking · ~55 min

Fuse semantic, lexical, recency, and salience signals; add diversity.

35. The Query Is Not the Last Message · ~45 min

Rewrite and expand queries; condition retrieval on intent.

36. Should I Even Look? · ~35 min

Choose between always-on retrieval and memory as a tool call.

Start with Scope, Then Rank →