Sent-cosine top-5 kept 100% gold spans at 0.116 token ratio on our 15-query RelayDesk — emb_filter 0.70 retained 13.3%

Author 15 gold answer spans × top-8 RelayDesk packs (seed materials 20260928, API $0). Compared raw concat vs sentence-cosine extractive vs DIY EmbeddingsFilter thresholds vs local Ollama LLM extract.