Let me start by listing the documents to see what inputs we have.

Let me read the payroll document.

The payroll month is 2027-10. Only 2026 is covered per R1. Dates outside 2026 require clarification under R7 with reason_code "NO_APPLICABLE_REFERENCE", citing R1 and R7.

Let me verify by checking the reference tables to confirm 2027-10 has no row. The lookup_reference tool gives first-half or second-half reference rates and effective months. Let me check both halves to confirm the coverage.

The reference rows cover only 2026-01 through 2026-12. The payroll month is 2027-10, which is outside 2026. Per R1: "Only 2026 is covered. Dates outside 2026 require clarification under R7." Per R7 item 3: "A month without a reference row: return decision: 'clarify' and reason_code: 'NO_APPLICABLE_REFERENCE', citing R1 and R7. Do not extrapolate an old row."

So the answer is clarify with reason_code NO_APPLICABLE_REFERENCE, citing R1 and R7. Include a short explanation naming the unresolved blocker and asking for its resolution.

The JSON fields for clarify: decision, reason_code, clauses, and optional explanation. No monetary fields.

Let me start by listing the documents to see what's in this case.

The payroll month is 2027-10. The rules say only 2026 is covered. Dates outside 2026 require clarification under R7. Also, the reference rows are available only through lookup_reference. Let me check the reference tables to confirm there's no row for 2027-10.

The rule R1 says "Only 2026 is covered. Dates outside 2026 require clarification under R7." So for 2027-10, I should return clarify with NO_APPLICABLE_REFERENCE.

But wait — should I check lookup_reference first? The case may include an authoritative reference_tables schedule. Let me check both halves to see if 2027-10 is covered. The rules say "Reference rows are available only through lookup_reference." Let me look up both halves to see the coverage.

The reference rows only cover 2026-01 through 2026-12. The payroll month is 2027-10, which is outside the covered range. Per R1 and R7, dates outside 2026 require clarification: reason_code "NO_APPLICABLE_REFERENCE", citing R1 and R7. Do not extrapolate an old row.

The record has gross_pay "4210.43" and payroll_month "2027-10". Both required fields are present, so it's not MISSING_GROSS_PAY or MISSING_PAYROLL_MONTH. It's a month without a reference row → NO_APPLICABLE_REFERENCE.

Per R7: "For these cases do not return calculated monetary fields." So the clarify answer includes decision, reason_code, clauses, and optionally a short explanation.

Fields for clarify: decision, reason_code, clauses. An optional explanation string is permitted.

Let me start by listing the documents to see what case inputs exist.

The payroll month is 2027-10. The rules say only 2026 is covered. A month without a reference row requires clarification under R7 with reason_code "NO_APPLICABLE_REFERENCE", citing R1 and R7.

But wait — I should check the reference tables via lookup_reference to confirm. The rules say "Reference rows are available only through lookup_reference." Let me check both halves to be thorough — actually, the rule says only 2026 is covered. But there may be an authoritative reference_tables schedule for the case. Let me look up both halves to verify coverage. The two lookups are independent, so I can call them together.

The reference tables cover only 2026 (first half: 2026-01 to 2026-06; second half: 2026-07 to 2026-12). The payroll month is 2027-10, which is outside 2026. Under R1: "Only 2026 is covered. Dates outside 2026 require clarification under R7." Under R7 point 3: "A month without a reference row: return decision: 'clarify' and reason_code: 'NO_APPLICABLE_REFERENCE', citing R1 and R7. Do not extrapolate an old row."

So the answer is a clarification: decision "clarify", reason_code "NO_APPLICABLE_REFERENCE", clauses ["R1", "R7"], with a short explanation naming the unresolved blocker (payroll month 2027-10 is outside the covered range 2026) and asking for its resolution.

Per the rules: "For these cases do not return calculated monetary fields." The clarify answer fields: decision, reason_code, clauses, plus optional explanation. No monetary fields.