Calculate construction costs using resource-based method. Estimate project costs from work items, physical resource norms, and current prices.
SkillScore87Maintained
Automatic
◆Real Estate & Property pack
Last verified 8/23/2026
What it changes
Passed 20 of 23 test cases with the skill, and 8 of 23 without it.
Without skill35%
With skill87%
Checks it passed that the model alone missed
Calls apply_regional_factor to adjust base resource rates.
Passes ResourceType.LABOR to filter labor price adjustments.
Uses load_resources_from_df to populate the resource registry.
and 15 more in the full report
12 fixed8 passed either way3 still failing0 broke
Pass-rate lift
+52 pp
Tokens
+100%
Agent turns
0%
Response time
-26%
Model gemini-3.6-flashMeasured 8/23/2026v120 of 23 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 12
Prompt
In a resource estimator Python module, what dataclass represents the computed cost breakdown for a single work item quantity across labor, material, equipment, subcontractor, and total cost?
What was checked, without and with the skill
Checked
Without skill
With skill
Uses the CostLineItem dataclass to store line item calculation outputs.
Missed
Passed
Includes distinct fields for labor_cost, material_cost, equipment_cost, and subcontractor_cost.
Missed
Passed
case-14 · gemini-3.6-flash · 8/23/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md351 linessingle file
Cost Estimation - Resource Method
Business Case
Problem Statement
Traditional costing challenges:
Fixed unit prices become outdated
No visibility into cost components
Difficult to adjust for conditions
Limited cost analysis capability
Solution
Resource-based costing separates physical resource consumption (norms) from prices, enabling accurate, adjustable, and transparent cost estimation.
Technical Implementation
import pandas as pd
from typing import Dict, Any, List, Optional
from dataclasses import dataclass, field
from enum import Enum
class ResourceType(Enum):
LABOR = "labor"
MATERIAL = "material"
EQUIPMENT = "equipment"
SUBCONTRACTOR = "subcontractor"
@dataclass
class Resource:
code: str
name: str
resource_type: ResourceType
unit: str
unit_price: float
currency: str = "USD"