Foundational · ADP
Retriever
Context-sensitive interface to long-term memory; selects what is salient to the current step rather than dumping the entire store into the prompt.
- Addresses
- Inefficient retrieval — the failure mode of either flooding the prompt or missing the relevant fragment.
- When it stabilizes
- When the knowledge base grows beyond a few pages and naive similarity search starts returning noise, or when different tasks need different retrieval strategies.
- Example
- A RAG retriever with a reranker selects top-k passages keyed to the current sub-goal, not the conversation history.
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