Unverified50% confidenceDecision RuleExact time
The second layer requires strict context engineering: enforce metadata filtering (timestamps, document status, version tags) before semantic search, and set fallback strings such as 'INSUFFICIENT_CONTEXT'.
1
Sources
50%
Confidence
Long-term
Relevance
10/19/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedMetadata fields need to be explicitly declared as indexable fields at data ingestion time; otherwise, filter operations will degrade to full scans, affecting performance.72% similarUnverifiedMetadata filtering comes in two forms: pre-filtering, which uses structured fields to narrow the candidate set before vector computation for higher precision; and post-filtering, which recalls the Top-K results first and then filters them out—simpler to implement but potentially leaving insufficient usable results.72% similarUnverifiedIn the pre-indexing approach of attaching permission metadata at the document indexing stage and then filtering by metadata, the permission snapshot in the index may already be outdated once permissions are updated in the source system.68% similarUnverifiedRetrieval chunks need their length controlled to fit the embedding model's context window, need metadata such as title, source and time retained to support filtering and tracing, and should preserve semantic completeness as much as possible when splitting.67% similarUnverifiedSpecific, actionable constraints (such as requiring immediate reporting upon detecting data anomalies and prohibiting self-repair) are more effective than vague role descriptions.66% similar
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