Luma Payroll Gym
← Heatmap / MiMo V2.6 Pro · Task 89
MiMo V2.6 Pro · Tool use · Task 89 (Retrieval, contribution rate) Mean 100.0%
Field Expected Rollout #1 (100%) Rollout #2 (100%) Rollout #3 (100%)
decision retrieve retrieve retrieve retrieve
field contribution_rate contribution_rate contribution_rate contribution_rate
value 0.05 0.05 0.05 0.05
clauses R1 R3 R1 R3 R1 R3 R1 R3
Prompt
Retrieve contribution_rate from the supplied rulebook. Return the R8 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 · 4 tool calls · 10.1s · $0.0007
ComponentScoreClauses
decision 100.0% R1 R3
exact 100.0% R1 R3
field accuracy 100.0% R1 R3
citations 100.0% R1 R3
Assistant
list_documents()lookup_reference(reference="first-half")lookup_reference(reference="second-half")
Reasoning
The task is a retrieval task: retrieve contribution_rate from the supplied rulebook. But we need a payroll month. Let me list documents first.
Tool
[
  {"id": "6198d6e0c2d80f90-payroll", "kind": "payroll"}
]
Tool
{
  "reference": "first-half",
  "months": ["2026-01", "2026-06"],
  "rate": "0.08",
  "cap": "3500.00",
  "deduction": "400.00",
  "free": "1000.00",
  "upper": "3300.00",
  "middle_rate": "0.12",
  "upper_rate": "0.24"
}
Tool
{
  "reference": "second-half",
  "months": ["2026-07", "2026-12"],
  "rate": "0.05",
  "cap": "4500.00",
  "deduction": "400.00",
  "free": "1000.00",
  "upper": "3300.00",
  "middle_rate": "0.10",
  "upper_rate": "0.24"
}
Assistant
read_document(document_id="6198d6e0c2d80f90-payroll")
Reasoning
Interesting: the reference rows cover months 2026-01 through 2026-06 (first-half) and 2026-07 through 2026-12 (second-half). The "months" field seems to indicate ranges ["2026-01","2026-06"] meaning start and end? Let me read the document.
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-08"}
}
Assistant
{
  "decision": "retrieve",
  "field": "contribution_rate",
  "value": "0.05",
  "clauses": ["R1", "R3"]
}
Reasoning
The task is retrieval of contribution_rate for payroll month 2026-08. Second-half row covers 2026-07 through 2026-12, so rate is 0.05.

Cite R1 and R3 (source rule for contribution_rate).
Rollout #2 100.0% passed · 3 tool calls · 11.8s · $0.0005
ComponentScoreClauses
decision 100.0% R1 R3
exact 100.0% R1 R3
field accuracy 100.0% R1 R3
citations 100.0% R1 R3
Assistant
list_documents()
Reasoning
The task is a retrieval task asking for contribution_rate, but no payroll month is supplied in the message. Let me check documents first to see if there's a payroll month.

R8: retrieval tasks must have a month covered by a reference row. Let me list documents.
Tool
[
  {"id": "6198d6e0c2d80f90-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="6198d6e0c2d80f90-payroll")
Reasoning
Read the document.
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-08"}
}
Assistant
lookup_reference(reference="second-half")
Reasoning
Payroll month is 2026-08 — second half. Retrieve contribution_rate.
Tool
{
  "reference": "second-half",
  "months": ["2026-07", "2026-12"],
  "rate": "0.05",
  "cap": "4500.00",
  "deduction": "400.00",
  "free": "1000.00",
  "upper": "3300.00",
  "middle_rate": "0.10",
  "upper_rate": "0.24"
}
Assistant
{
  "decision": "retrieve",
  "field": "contribution_rate",
  "value": "0.05",
  "clauses": ["R1", "R3"]
}
Reasoning
Contribution rate for 2026-08 is 0.05.
Rollout #3 100.0% passed · 3 tool calls · 13.3s · $0.0005
ComponentScoreClauses
decision 100.0% R1 R3
exact 100.0% R1 R3
field accuracy 100.0% R1 R3
citations 100.0% R1 R3
Assistant
list_documents()
Reasoning
The task: retrieve contribution_rate from the supplied rulebook. But we need a payroll month to select a reference row. The task says "Retrieve the case inputs with list_documents and read_document." So there's a case with documents. Let me list documents first.
Tool
[
  {"id": "6198d6e0c2d80f90-payroll", "kind": "payroll"}
]
Assistant
read_document(document_id="6198d6e0c2d80f90-payroll")
Reasoning
Read the document.
Tool
{
  "kind": "payroll",
  "record": {"payroll_month": "2026-08"}
}
Assistant
lookup_reference(reference="second-half")
Reasoning
Payroll month is 2026-08 → second-half. Need contribution_rate from lookup_reference second-half.
Tool
{
  "reference": "second-half",
  "months": ["2026-07", "2026-12"],
  "rate": "0.05",
  "cap": "4500.00",
  "deduction": "400.00",
  "free": "1000.00",
  "upper": "3300.00",
  "middle_rate": "0.10",
  "upper_rate": "0.24"
}
Assistant
{
  "decision": "retrieve",
  "field": "contribution_rate",
  "value": "0.05",
  "clauses": ["R1", "R3"]
}
Reasoning
2026-08 falls in second-half (2026-07 through 2026-12). contribution_rate = 0.05. Return retrieve decision with field contribution_rate, value "0.05", clauses R1 and R3.

Value as decimal string. "0.05" is fine.