Short answer: use staged retrieval with explicit collections, hard query budgets, and source context that survives every stage; tune recall inside those limits instead of letting a customer-support knowledge base search an unbounded PDF corpus. For a B2B SaaS team answering questions over folder...
Source: [Dev.to](https://dev.to/zorvyngale1729/go-retrieval-admission-control-query-limits-for-customer-support-knowledge-base-pdfs-8ok)