---
id: ADR-PFM-ELG-002
title: Platform hosts evaluation until a consumer package is published
product_area: platform
module: eligibility
revision: 1
status: proposed
design_intent: proposed
source_sha:
  services-platform: ad3f6a6582843008ed0f5a17b131878d15829af1
  react-console: baf6dae382d6f41dce976c7f848667ccc37e076f
decision: >-
  Keep the current hosted evaluation path as an observed interim implementation;
  distributing the existing internal evaluator remains proposed work.
constrains:
  - DOM-PFM-ELG-003
  - SVC-PFM-ELG-eligibility
  - WF-PFM-ELG-004
  - WF-PFM-ELG-005
origin: >-
  Eligibility Engine architecture D-31 (in-process evaluation in consumer
  services, Platform-hosted evaluation for populations, materialisation, tests
  and the decisions API), approved by Andrew 2026-10-17 (PLAT-M11 "Decisions")
alternatives:
  - option: Distribute the evaluator before consumer integration
    why_not: >-
      This removes the hosted dependency but needs unfinished packaging; the
      source does not establish approval to defer it.
  - option: Keep every evaluation hosted indefinitely
    why_not: >-
      Permanent remote evaluation departs from the approved consumer-process
      architecture.
consequences:
  - Hosted consumers depend on Platform availability.
  - The plan endpoint supplies complete service plans and version tags.
  - The recorded transaction evaluator and SQL-only check remain distinct paths.
supersedes: []
evidence:
  - >-
    services-platform at ad3f6a6:
    docs/proposals/eligibility/17-decision-register.md;
    docs/milestones/PLAT-M11-eligibility-rules.md (Decisions)
  - 'services-platform at ad3f6a6: docs/eligibility.md §9.6, §10.1'
---
# Platform hosts evaluation until a consumer package is published

## Context

The architecture calls for evaluation close to the consumer, but a distributable evaluator package is absent.

## Decision

Keep the current hosted evaluation path as an observed interim implementation; distributing the existing internal evaluator remains proposed work.

## Alternatives Considered

Distribute the evaluator before consumer integration: This removes the hosted dependency but needs unfinished packaging; the source does not establish approval to defer it.

Keep every evaluation hosted indefinitely: Permanent remote evaluation departs from the approved consumer-process architecture.

## Consequences

Hosted consumers depend on Platform availability. The plan endpoint supplies complete service plans and version tags. The recorded transaction evaluator and SQL-only check remain distinct paths.