# EM-PEO-09 provider comparison

Claude and Grok agree on exactly four identifier-unassigned roots: Compensation Band, Compensation Assignment, Benefit Plan and Benefit Enrollment. Both reject Compensation Review as a root, retain authoritative review outcomes on WM-REC-010, limit WM-ECO-031 to payroll calculation and payslip facts, and preserve WM-ECO-009 payment and settlement authority. No identifier is allocated.

The reconciled candidate adopts Grok's sharper rule that an assignment may be off-band and that position-in-range and compa-ratio are observations. It adopts Claude's explicit amount tuple, jurisdiction separation and employee-versus-public-benefit boundary. Eligibility remains plan-owned; election and coverage remain enrollment-owned; claim, remittance and privacy-floor algorithms remain unowned. Aggregate privacy rules are declarative because WM-XCT-005 has no current specification and no numeric threshold is invented.

The single frozen audit returned REVISE for twenty closed checklist items. Revision 3 applies them once without rerunning the audit: contour-qualified rule and fixture IDs, corrected lifecycles and dependency direction, person mastership, bitemporal/currency/FTE rules, disclosure reconstruction controls, unowned scope and provenance holds.