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RecSys is an auditable recommendation system suite with deterministic ranking and versioned ship/rollback.

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Scope check (read before piloting)

Capability boundaries: Capability matrix (scope and non-scope). Non-goals: Known limitations and non-goals (current).

Who this is for

  • Teams who want to validate lift and operational fit before committing
  • Procurement/security reviewers who need a concrete artifact trail and clear rollback story

What you will get

  • The minimum “credible pilot” instrumentation checklist
  • A recommended 2–6 week plan and exit criteria
  • Links to the exact docs you will run during the evaluation

What “evaluation” means here

An evaluation is successful when you can answer these questions with evidence:

  • Does RecSys improve a KPI you care about (with guardrails holding)?
  • Can you audit what happened (logs → reports → decision trail)?
  • Can you roll back safely (config/rules/manifests) and restore a known-good state?

Evaluation onboarding checklist (Phase 1)

  • Choose one recommendation surface (for example: home feed, PDP similar-items, related content)
  • Integrate recsys-service for that surface (auth + tenancy + request/response contract)
  • Emit exposure logs and outcome logs with the same request_id
  • Produce your first report (offline gate or experiment mode)
  • Do one rollback drill (before you are on fire)

Minimum data requirements

  • Stable join key: request_id present in exposures and outcomes
  • A pseudonymous user_id or session_id (no raw PII)
  • tenant_id and surface on every exposure record

See:

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