Case Study

Enterprise AI

RAG Knowledge Engine for Enterprise Docs

Retrieval-augmented Q&A over an enterprise client's internal docs — accurate, fast, with verifiable citations on every answer.

PythonPineconeFastAPILangGraphClaude

At a glance

What this shipped

The numbers that mattered to the client — measured before and after.

51%
Tickets deflected
<2%
Hallucination rate
8,000+
Docs indexed
10 weeks
Build duration

The problem

What we were called in to fix

The client, a mid-market SaaS company, had 8,000+ pages of internal documentation across Notion, Google Drive, Confluence and a legacy SharePoint. New hires took three months to find anything; support engineers answered the same five questions every day.

Off-the-shelf chatbots hallucinated badly and offered no way to verify answers. Internal trust in any AI tool was at zero after a previous failed pilot.

Our approach

How we actually built it

No magic — just the right architectural calls in the right order.

We built a hybrid retrieval pipeline: semantic search (Pinecone) plus BM25 keyword search, with a re-ranker on top. Every answer cites the exact source chunks and links back to the original doc.

Source ingestion is incremental and deduplicated across systems — the same page in two places doesn&apos;t double-count.

An evals harness with 200 ground-truth Q&A pairs runs on every model or prompt change. We don&apos;t ship a regression in retrieval quality.

Per-user usage caps and per-team cost dashboards mean the CFO never gets surprised.

The outcome

What changed for the client

51% of internal support questions deflected from the human queue.

Median time-to-answer for new hires: 6 minutes (was 4 hours).

Hallucination rate measured at <2% on the evals harness — every answer cites its source, so users can verify.

Tech stack

Every meaningful piece

PythonFastAPIAnthropic ClaudePineconeBM25LangGraphPostgresAWS LambdaS3

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