# Provider comparison — EM-TEC-08

Claude and Grok agree on reuse: WM-SFT-015 owns test definitions, executions, observations, adjudication and evidence; WM-SFT-014 owns Defect; WM-ACT-006 owns remediation; WM-SFT-008 owns exact tested artifacts; WM-REC-006 remains a reference; WM-ACT-038 parentage must be withdrawn without guessing a replacement. Both reject a separately mastered TestResult and require exact subject/environment pins, immutable attempts, explicit flaky/inconclusive handling and evidence-based closure on a later digest.

Grok sharpens TestResult containment: a run must contain stable result fragments, not only a rollup verdict, and links/evidence/retry sets point to fragments. It also challenges the Test Environment proposal: keep the name identifier-unassigned, but until identity grain and mastership are proven represent the environment as a required immutable pin/value object and do not advance the allocation package.

The reconciled disposition completes reserved WM-SFT-015 and WM-SFT-014 research candidates, removes the WM-ACT-038 parent assumption, retains Test Environment as an unassigned research question, and holds canonical publication. No runtime or model ID is created.