Calculate CO2 emissions and carbon footprint from BIM model data. Analyze embodied carbon by material, element, and building system.
SkillScore87Maintained
Automatic
◆Real Estate & Property pack
Last verified 8/22/2026
What it changes
Passed 20 of 23 test cases with the skill, and 6 of 23 without it.
Without skill26%
With skill87%
Checks it passed that the model alone missed
The lookup key for concrete is concrete_m3.
The total emissions in metric tons equal 500.
The total emissions in metric tons equal 200.
and 16 more in the full report
14 fixed6 passed either way3 still failing0 broke
Pass-rate lift
+61 pp
Tokens
+28%
Agent turns
0%
Response time
-51%
Model gemini-3.6-flashMeasured 8/22/2026v220 of 23 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 14
Prompt
In the project summary output dictionary, to how many decimal places are total kg CO2e, metric tons CO2e, and intensity per square meter rounded?
What was checked, without and with the skill
Checked
Without skill
With skill
The summary numeric values are rounded to 2 decimal places.
Missed
Passed
case-16 · 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.md177 linessingle file
CO2 Carbon Footprint Tracker
Technical Implementation
import pandas as pd
from datetime import date
from typing import Dict, Any, List
from dataclasses import dataclass, field
from enum import Enum
class EmissionScope(Enum):
SCOPE_1 = "scope_1" # Direct emissions
SCOPE_2 = "scope_2" # Indirect from energy
SCOPE_3 = "scope_3" # Value chain emissions
class MaterialCategory(Enum):
CONCRETE = "concrete"
STEEL = "steel"
ALUMINUM = "aluminum"
TIMBER = "timber"
GLASS = "glass"
INSULATION = "insulation"
OTHER = "other"
@dataclass
class EmissionFactor:
material: str
category: MaterialCategory
factor: float # kg CO2e per unit
unit: str
source: str
@dataclass
class EmissionEntry:
entry_id: str