Luma Payroll Gym
Rules Report
← Heatmap / MiMo V2.6 Pro · Task 12
MiMo V2.6 Pro · Tool use · Task 12 (Traps, missing month) Mean 100.0%
Field Expected Rollout #1 (100%) Rollout #2 (100%) Rollout #3 (100%)
decision clarify clarify clarify clarify
reason code MISSING_PAYROLL_MONTH MISSING_PAYROLL_MONTH MISSING_PAYROLL_MONTH MISSING_PAYROLL_MONTH
clauses R1 R7 R1 R7 R1 R7 R1 R7
Prompt 
Process this monthly payroll record under the supplied rulebook. Return the R6 or R7 JSON answer.
Retrieve the case inputs with list_documents and read_document. Reference rows are available only through lookup_reference. Use calculate for exact decimal arithmetic.
Rollouts
Rollout #1 100.0% passed · 2 tool calls · 12.8s · $0.0005
ComponentScoreClauses
decision 100.0% R1 R7
exact 100.0% R1 R7
field accuracy 100.0% R1 R7
citations 100.0% R1 R7
explanation 100.0% R1 R7
Assistant
list_documents()
Reasoning 
Let me list documents first.
Tool
[
  {"id": "20c5003e680b942a-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="20c5003e680b942a-payroll")
Reasoning 
Read the payroll document.
Tool
{
  "kind": "payroll",
  "record": {"gross_pay": "5796.92", "allowed_deduction": "0.00"}
}
Assistant
{
  "decision": "clarify",
  "reason_code": "MISSING_PAYROLL_MONTH",
  "clauses": ["R1", "R7"],
  "explanation": "The payroll record has no payroll_month, so the applicable reference row cannot be selected. Please provide the payroll month in YYYY-MM format within 2026."
}
Reasoning 
The payroll record is missing `payroll_month`. Per R7 check order:
1. gross_pay present (5796.92) - not missing.
2. payroll_month missing - return clarify MISSING_PAYROLL_MONTH, cite R1 and R7.

Wait, is payroll_month truly missing? The record only has gross_pay and allowed_deduction. Yes, missing payroll_month (explicit null or absent). R7: "Missing required values include explicit null." The month is absent, so MISSING_PAYROLL_MONTH.

Decision: clarify, reason_code: MISSING_PAYROLL_MONTH, clauses: R1, R7.
Rollout #2 100.0% passed · 2 tool calls · 14.2s · $0.0005
ComponentScoreClauses
decision 100.0% R1 R7
exact 100.0% R1 R7
field accuracy 100.0% R1 R7
citations 100.0% R1 R7
explanation 100.0% R1 R7
Assistant
list_documents()
Reasoning 
Let me list documents first.
Tool
[
  {"id": "20c5003e680b942a-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="20c5003e680b942a-payroll")
Reasoning 
Read the document.
Tool
{
  "kind": "payroll",
  "record": {"gross_pay": "5796.92", "allowed_deduction": "0.00"}
}
Assistant
{
  "decision": "clarify",
  "reason_code": "MISSING_PAYROLL_MONTH",
  "clauses": ["R1", "R7"],
  "explanation": "The payroll record lacks the required payroll_month (YYYY-MM), which is needed to select the applicable reference row. Please provide the payroll month so the payroll can be calculated."
}
Reasoning 
The payroll record has gross_pay 5796.92 and allowed_deduction 0.00, but no payroll_month. Per R7 check order: missing gross_pay? No. Missing payroll_month? Yes → clarify MISSING_PAYROLL_MONTH, cite R1 and R7.

Wait - is payroll_month missing? The record doesn't include it. The task says "Process this monthly payroll record". The input fields... The prompt says "Do not include input-only fields such as payroll_month" in the answer, but payroll_month is required per R1. The document record lacks payroll_month. So clarification MISSING_PAYROLL_MONTH.

Per R7: "Missing required values include explicit null." Here it's absent entirely — missing. Return clarify with reason_code MISSING_PAYROLL_MONTH, clauses R1 and R7.
Rollout #3 100.0% passed · 2 tool calls · 17.0s · $0.0005
ComponentScoreClauses
decision 100.0% R1 R7
exact 100.0% R1 R7
field accuracy 100.0% R1 R7
citations 100.0% R1 R7
explanation 100.0% R1 R7
Assistant
list_documents()
Reasoning 
Let me start by listing documents.
Tool
[
  {"id": "20c5003e680b942a-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="20c5003e680b942a-payroll")
Reasoning 
Read the payroll document.
Tool
{
  "kind": "payroll",
  "record": {"gross_pay": "5796.92", "allowed_deduction": "0.00"}
}
Assistant
{
  "decision": "clarify",
  "reason_code": "MISSING_PAYROLL_MONTH",
  "clauses": ["R1", "R7"],
  "explanation": "The payroll record is missing the required payroll_month (YYYY-MM), so no reference row can be selected. Please provide the payroll month to proceed."
}
Reasoning 
The payroll record has gross_pay 5796.92 and allowed_deduction 0.00. But no payroll_month! R7 order: 1. Missing gross_pay — no. 2. Missing payroll_month — yes. Return clarify MISSING_PAYROLL_MONTH, citing R1 and R7.

Wait, does payroll_month appear anywhere? The record only has gross_pay and allowed_deduction. Missing payroll_month includes explicit null; here it's absent entirely, which is missing. So clarify.

clauses: ["R1", "R7"]. Fields: decision, reason_code, clauses. Optional explanation naming the unresolved blocker and asking for resolution.