Luma Payroll Gym
Rules Report
← Heatmap / GPT 5.6 Luna · Task 49
GPT 5.6 Luna* · Tool use · Task 49 (Traps, month not covered) Mean 98.9%
Field Expected Rollout #1 (100%) Rollout #2 (100%) Rollout #3 (97%)
decision clarify clarify clarify clarify
reason code NO_APPLICABLE_REFERENCE NO_APPLICABLE_REFERENCE NO_APPLICABLE_REFERENCE NO_APPLICABLE_REFERENCE
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 · 6.6s · $0.0004
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()
Tool
[
  {"id": "9ad988b2861b15bb-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="9ad988b2861b15bb-payroll")
Tool
{
  "kind": "payroll",
  "record": {"gross_pay": "4210.43", "payroll_month": "2027-10"}
}
Assistant
{
  "decision": "clarify",
  "reason_code": "NO_APPLICABLE_REFERENCE",
  "clauses": ["R1", "R7"],
  "explanation": "The payroll month 2027-10 is outside the covered 2026 reference period and has no applicable reference row. Please provide a covered payroll month or an applicable reference schedule."
}
Reasoning 
**Clarifying reference needs**

I need to clarify a few things about the 2026 references before looking anything up. I also need to ensure I have the month without referring to my sources. I'll cite R1 and R7, but I'm looking for a short explanation, noting that a blocker is asking for a resolution. I need to focus on getting the exact fields decision reason code clauses and an optional explanation in JSON format only.
Rollout #2 100.0% passed · 4 tool calls · 9.7s · $0.0007
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()
Tool
[
  {"id": "9ad988b2861b15bb-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="9ad988b2861b15bb-payroll")
Tool
{
  "kind": "payroll",
  "record": {"gross_pay": "4210.43", "payroll_month": "2027-10"}
}
Assistant
lookup_reference(reference="first-half")lookup_reference(reference="second-half")
Reasoning 
**Clarifying lookup needs**

I need to clarify whether I should look up a month outside of 2026. The rules seem to suggest referencing only applicable dates. However, I have the date 2027 for R7 step 3, which might not lead to any applicable results. The user specifically asked about using the lookup. I think I’ll need to call the lookup tool to ensure I cover all necessary information, possibly in parallel to handle the month outside of coverage.
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.08",
  "cap": "4500.00",
  "deduction": "400.00",
  "free": "1200.00",
  "upper": "3600.00",
  "middle_rate": "0.12",
  "upper_rate": "0.18"
}
Tool
{
  "reference": "second-half",
  "months": ["2026-07", "2026-12"],
  "rate": "0.07",
  "cap": "3500.00",
  "deduction": "400.00",
  "free": "900.00",
  "upper": "3600.00",
  "middle_rate": "0.08",
  "upper_rate": "0.20"
}
Assistant
{
  "decision": "clarify",
  "reason_code": "NO_APPLICABLE_REFERENCE",
  "clauses": ["R1", "R7"],
  "explanation": "No reference row covers payroll month 2027-10. Provide a payroll month covered by the available 2026 reference rows."
}
Rollout #3 96.7% passed · 4 tool calls · 11.9s · $0.0008
ComponentScoreClauses
decision 100.0% R1 R7
exact 100.0% R1 R7
field accuracy 100.0% R1 R7
citations 100.0% R1 R7
explanation 66.7% R1 R7
Assistant
list_documents()
Tool
[
  {"id": "9ad988b2861b15bb-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="9ad988b2861b15bb-payroll")
Tool
{
  "kind": "payroll",
  "record": {"gross_pay": "4210.43", "payroll_month": "2027-10"}
}
Assistant
lookup_reference(reference="first-half")lookup_reference(reference="second-half")
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.08",
  "cap": "4500.00",
  "deduction": "400.00",
  "free": "1200.00",
  "upper": "3600.00",
  "middle_rate": "0.12",
  "upper_rate": "0.18"
}
Tool
{
  "reference": "second-half",
  "months": ["2026-07", "2026-12"],
  "rate": "0.07",
  "cap": "3500.00",
  "deduction": "400.00",
  "free": "900.00",
  "upper": "3600.00",
  "middle_rate": "0.08",
  "upper_rate": "0.20"
}
Assistant
{
  "decision": "clarify",
  "reason_code": "NO_APPLICABLE_REFERENCE",
  "clauses": ["R1", "R7"],
  "explanation": "Payroll month 2027-10 has no applicable reference row; provide a payroll month covered by the 2026 reference schedule."
}