Let me start by listing the documents to get the case inputs.

There's a payroll record, a contract, and an amendment. Let me read all three documents.

Let me analyze:

- Payroll record: gross_pay = 6900.86, payroll_month = 2026-11, allowed_deduction = 338.48
- Contract: gross_pay = 7000.86
- Amendment: gross_pay = 6900.86, approved = true, effective_month = 2026-12

Payroll month is 2026-11. The amendment is approved but its effective month (2026-12) is AFTER the payroll month (2026-11). Per R9, an amendment resolves a conflict only if it is approved, its effective month is no later than the payroll month, and its amount equals the payroll record's gross pay. Here the effective month is 2026-12 which is later than 2026-11, so the amendment does NOT resolve the conflict.

So we have contract_gross_pay = 7000.86 differing from gross_pay = 6900.86, and the amendment fails to resolve it (future effective month). Per R7 step 4: return decision "clarify" with reason_code "CONFLICTING_GROSS_PAY", citing R7 and R9.

Wait — but should I check the reference row first? R7 order: 1. Missing gross_pay — no. 2. Missing payroll_month — no. 3. Month without reference row — 2026-11 is in 2026, which is covered. But I should verify the reference row exists via lookup_reference. Actually, the check order is: check required and conflicting inputs in this order. Step 3 says a month without a reference row → clarify NO_APPLICABLE_REFERENCE. 2026-11 should have a reference row (only 2026 is covered). Let me verify with lookup_reference — second half covers months 07-12 presumably. Let me look it up to be thorough. Actually, since the answer is a clarification due to conflicting gross pay, do I need the reference row? The order of checks: step 3 (month without reference row) comes before step 4 (conflicting gross pay). If 2026-11 has a reference row, then we proceed to step 4, which triggers CONFLICTING_GROSS_PAY.

Let me check the second-half reference to confirm 2026-11 is covered. The rules say "Only 2026 is covered" and reference rows are available through lookup_reference. Let me call lookup_reference for second-half (since November is in the second half).

Actually, for a clarification answer, monetary fields are not returned. But I still need to confirm the month has a reference row to determine which clarification reason applies. Let me look up second-half.

Then the answer: decision "clarify", reason_code "CONFLICTING_GROSS_PAY", clauses citing R7 and R9, with a short explanation naming the unresolved blocker: contract gross pay 7000.86 differs from payroll gross pay 6900.86; the amendment is approved but effective 2026-12, after the payroll month 2026-11, so it does not resolve the conflict under R9. Ask for resolution (e.g., an approved amendment effective no later than 2026-11 with matching amount, or corrected inputs).

Let me do the lookup_reference call first to confirm the month coverage.

The second-half reference covers 2026-07 through 2026-12, so 2026-11 has a reference row. So step 3 doesn't trigger.

Step 4: contract_gross_pay = 7000.86 is present and differs from gross_pay = 6900.86. The amendment: approved = true, effective_month = 2026-12, amount 6900.86 equals the payroll record's gross pay. But effective month 2026-12 is later than payroll month 2026-11, so per R9 the amendment does not resolve the conflict (a future amendment does not resolve a conflict). Therefore, neither source takes precedence, and we return clarify with CONFLICTING_GROSS_PAY, citing R7 and R9.

No monetary fields in the answer. Include a short explanation naming the unresolved blocker and asking for its resolution.

Let me start by listing the documents to get the case inputs.

There's a payroll record, a contract, and an amendment. Let me read all three documents. These are independent reads, so I can call them all at once.

Let me analyze the inputs:

- Payroll record: gross_pay = 6900.86, payroll_month = 2026-11, allowed_deduction = 338.48
- Contract: gross_pay = 7000.86
- Amendment: gross_pay = 6900.86, approved = true, effective_month = 2026-12

Check R7 order:
1. gross_pay present: 6900.86. OK.
2. payroll_month present: 2026-11. OK, valid format, year 2026 in range.
3. Reference row for 2026-11: need to check lookup_reference. 2026-11 is the second half presumably. Let me check.
4. Conflicting gross pay: contract says 7000.86, payroll says 6900.86. These differ. Amendment is present: approved = true, but effective_month = 2026-12, which is AFTER the payroll month 2026-11. Under R9, the amendment resolves a conflict only if approved, effective month no later than payroll month, and amount equals payroll gross. Here effective month 2026-12 > 2026-11, so it does NOT resolve the conflict. Therefore decision: clarify, reason_code: CONFLICTING_GROSS_PAY, citing R7 and R9.

Wait — but before that, should I check the reference row? R7 order: check required and conflicting inputs in order 1-4. The conflict check is step 4. Step 3 is a month without a reference row. 2026-11 should have a reference row (2026 is covered). Let me verify with lookup_reference for second-half to make sure 2026-11 is covered. Actually, since the answer will be a clarification regardless, do I need the reference? The conflict check comes after the reference row check. If 2026-11 has no reference row, the answer would be NO_APPLICABLE_REFERENCE. 2026 is covered per R1, so 2026-11 should have a row. But I should verify via lookup_reference to be careful. Let me call lookup_reference for second-half.

Actually, the order of checks matters: step 3 (no applicable reference) precedes step 4 (conflicting gross pay). Since 2026-11 is within 2026, there should be a row. Let me confirm with lookup_reference("second-half") — 2026-11 is in the second half of the year presumably. Let me check both halves? The first half likely covers Jan–Jun, second half Jul–Dec. 2026-11 → second half.

Let me call lookup_reference for second-half to confirm the row exists. Then return the clarification.

Also note: the amendment amount equals the payroll gross (6900.86), and it's approved, but effective month 2026-12 is later than payroll month 2026-11. So it's a "future" amendment relative to the payroll month — does not resolve the conflict. Return CONFLICTING_GROSS_PAY citing R7 and R9.

For clarification: decision "clarify", reason_code "CONFLICTING_GROSS_PAY", clauses citing R7 and R9. Include a short explanation naming the unresolved blocker and asking for its resolution. No monetary fields.

Let me do the lookup_reference call to confirm 2026-11 has a row (needed for check ordering correctness).

The second-half row covers 2026-07 through 2026-12, so 2026-11 has an applicable reference row. Good — step 3 passes.

Step 4: contract_gross_pay = 7000.86 differs from payroll gross_pay = 6900.86. The amendment is approved and its amount matches the payroll gross (6900.86), but its effective_month is 2026-12, which is later than the payroll month 2026-11. Under R9, a future amendment does not resolve a conflict. So the conflict is unresolved → decision: clarify, reason_code: CONFLICTING_GROSS_PAY, citing R7 and R9.

Return JSON with decision, reason_code, clauses, and a short explanation. No monetary fields.

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

Let me read all three documents. They're independent, so I can read them in parallel.

Let me analyze:

- Payroll record: gross_pay = 6900.86, payroll_month = 2026-11, allowed_deduction = 338.48
- Contract: gross_pay = 7000.86 — conflicts with payroll gross_pay (6900.86 vs 7000.86)
- Amendment: gross_pay = 6900.86, approved = true, effective_month = 2026-12

R9: Amendment resolves a contract conflict only if:
1. approved — yes, approved = true
2. effective month no later than payroll month — 2026-12 > 2026-11, so the amendment is FUTURE relative to the payroll month. It does NOT resolve the conflict.
3. amount equals payroll record's gross pay — 6900.86 = 6900.86, yes.

Since the amendment's effective month (2026-12) is later than the payroll month (2026-11), it does not resolve the conflict. Per R7 item 4: if contract_gross_pay is present and differs from gross_pay, and no approved amendment resolves it under R9, return decision: "clarify", reason_code: "CONFLICTING_GROSS_PAY", citing R7 and R9.

Wait — but let me check the order of checks in R7:
1. Missing gross_pay — no, it's present (6900.86).
2. Missing payroll_month — no, present (2026-11).
3. Month without a reference row — 2026-11 is in 2026, which is covered. But wait, does the reference table have a row for 2026-11? I need to check lookup_reference. The rule says "Only 2026 is covered" and the reference tables are split first-half and second-half. 2026-11 is in the second half. Let me check lookup_reference for second-half to confirm there's a row for November 2026.

Hmm, the order of checks: R7 lists the checks in order 1-4. Check 3 is "A month without a reference row" — I should verify the month has a reference row. 2026-11 is within 2026, and presumably the second-half table covers July–December 2026. Let me verify with lookup_reference.

Check 4: contract_gross_pay present and differs from gross_pay (7000.86 ≠ 6900.86). Amendment: approved = true, effective_month = 2026-12 which is AFTER payroll month 2026-11, so it does not resolve. Amount matches but effectiveness fails. So CONFLICTING_GROSS_PAY.

But wait — should I check the reference row first (check 3) before check 4? The order is 1, 2, 3, 4. Since checks 1 and 2 pass, check 3 requires the month to have a reference row. 2026-11 should have one in the second-half table. Let me verify via lookup_reference("second-half").

Actually, even if the reference row exists, check 4 triggers CONFLICTING_GROSS_PAY. But I should still verify check 3 to make sure the month is covered — if the month weren't covered, the answer would be NO_APPLICABLE_REFERENCE instead. Let me look up the second-half reference.

The decision hinges on the amendment being future-dated. Per R9: "A draft, future, or different-amount amendment does not resolve a conflict." The amendment's effective month 2026-12 is later than payroll month 2026-11, so it's future relative to the payroll month. It does not resolve the conflict.

So the answer: decision = "clarify", reason_code = "CONFLICTING_GROSS_PAY", clauses = ["R7", "R9"], with a short explanation naming the unresolved blocker and asking for its resolution.

But first, let me confirm the reference row exists for 2026-11 (check 3 precedes check 4 in order). If the second-half table covers 2026-07 through 2026-12, then check 3 passes and check 4 applies.

Let me call lookup_reference("second-half").

The second-half table covers 2026-07 through 2026-12, so 2026-11 has a reference row. Check 3 passes.

Now check 4: contract_gross_pay = 7000.86 differs from gross_pay = 6900.86. The amendment is approved and its amount (6900.86) matches the payroll gross pay, but its effective_month is 2026-12, which is later than the payroll month 2026-11. Per R9, an amendment resolves a conflict only if approved, effective month no later than the payroll month, and amount equals payroll gross pay. This amendment is future-dated relative to the payroll month, so it does not resolve the conflict.

Therefore: decision = "clarify", reason_code = "CONFLICTING_GROSS_PAY", clauses = ["R7", "R9"], with a short explanation naming the unresolved blocker and asking for its resolution.

No monetary fields should be returned for clarification cases. Fields: decision, reason_code, clauses, and optional explanation. The explanation should name the unresolved blocker: the contract gross pay (7000.86) conflicts with the payroll gross pay (6900.86), and the amendment (6900.86, approved) is effective 2026-12, after the payroll month 2026-11, so it cannot resolve the conflict under R9. Ask for resolution, e.g., an approved amendment effective on or before 2026-11 matching the payroll gross pay.