Convert between construction measurement units. Handle metric/imperial conversion, area/volume calculations, and unit normalization for CWICR data.
SkillScore86Maintained
Automatic
◆Data Engineer pack
Last verified 8/22/2026
What it changes
Passed 19 of 22 test cases with the skill, and 10 of 22 without it.
Without skill45%
With skill86%
Checks it passed that the model alone missed
The sanitized unit string output is sqft
The conversion factor for ls to ea is 1.0
The rebar weight result yields 336.0 kilograms
and 10 more in the full report
9 fixed10 passed either way3 still failing0 broke
Pass-rate lift
+41 pp
Tokens
+413%
Agent turns
0%
Response time
-30%
Model gemini-3.6-flashMeasured 8/22/2026v119 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 9 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 9
Prompt
A steel girder delivery manifest lists a mass of 10 st (US short tons). Standard metric ton conversions use 1000 kg, but what is the exact kilogram weight when converting 10 st using the short ton unit definition?
What was checked, without and with the skill
Checked
Without skill
With skill
The conversion uses 907.185 kilograms per short ton
Missed
Passed
The calculated kilogram mass for 10 short tons is 9071.85
Missed
Passed
case-06 · gemini-3.6-flash · 8/22/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md433 linessingle file
CWICR Unit Converter
Business Case
Problem Statement
Construction data comes in various unit systems:
Metric vs Imperial measurements
Different unit conventions by trade
BIM quantities need normalization
Regional standards differ
Solution
Comprehensive unit conversion for construction quantities, normalizing data for CWICR integration and analysis.
Business Value
Accuracy - Eliminate unit conversion errors
Consistency - Standardize across projects
Integration - BIM to cost data alignment
Global - Support international projects
Technical Implementation
import pandas as pd
import numpy as np
from typing import Dict, Any, List, Optional, Tuple, Union
from dataclasses import dataclass
from enum import Enum
class UnitCategory(Enum):
"""Categories of measurement units."""
LENGTH = "length"
AREA = "area"
VOLUME = "volume"
WEIGHT = "weight"
TIME = "time"
QUANTITY = "quantity"