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005 / Advanced RAG & Retrieval

High-leverage retrieval for AI-native teams — the technical-credibility layer behind every agentic system we build.

High-recall retrieval and rigorous search evaluation for AI-native platform teams.

CTO · AI infrastructure leads · ML platform leads · Search / relevance engineers

01  Where friction lives

What breaks without this.

  • RAG systems miss relevant context
  • HNSW recall degrades at scale
  • Search quality is not measured rigorously
  • Retrieval latency budgets are unclear
  • Multi-hop agent workflows amplify retrieval errors
  • Evaluation pipelines are weak or absent
02  What we implement

The workflow layer we install.

  • RAG architecture review
  • Retrieval quality evaluation
  • Vector search benchmarking
  • Recall & latency profiling
  • Search pipeline implementation
  • High-recall retrieval kernel experimentation
  • Microservice extraction planning
Stack & integrations
pgvectorFAISSHNSWQdrantCohereOpenAI
fx://labs — retrieval-eval
$ fx eval --index hnsw --suite recall@k
# corpus 2.4M chunks · 512d
recall@10 0.71 -> 0.94 (DFRR kernel)
p95 latency 41ms within budget
benchmark.md + flame graph written
03  Fixed-scope packages

Choose your starting point.

Retrieval Eval Sprint

Measure search quality rigorously and find the gaps.

  • Eval harness
  • recall@k + latency profile
  • Failure analysis
  • Improvement roadmap

High-Recall Search Sprint

Implement a high-recall retrieval pipeline.

  • Index tuning
  • Re-ranking layer
  • Latency budget
  • Benchmark report
04  Outcomes

What gets better.

recall@10 achieved
0.94
p95 latency
41ms
retrieval kernel
DFRR

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