Compare cost estimates across projects, versions, and scenarios. Identify variances, benchmark against standards, and generate comparison reports.
SkillScore100Maintained
Automatic
◆Project Management pack
Last verified 8/22/2026
What it changes
Passed 23 of 23 test cases with the skill, and 9 of 23 without it.
Without skill39%
With skill100%
Checks it passed that the model alone missed
Lists VERSION as a ComparisonType enum value.
Lists BENCHMARK as a ComparisonType enum value.
Calls version_comparison on CWICRComparisonTool.
and 23 more in the full report
14 fixed9 passed either way0 still failing0 broke
Pass-rate lift
+61 pp
Tokens
+161%
Agent turns
0%
Response time
-48%
Model gemini-3.6-flashMeasured 8/22/2026v123 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
Which pandas Excel writer engine is hardcoded inside `CWICRComparisonTool.export_comparison` when saving the Excel report?
What was checked, without and with the skill
Checked
Without skill
With skill
Specifies openpyxl as the pandas ExcelWriter engine.
Missed
Passed
case-18 · 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.md481 linessingle file
CWICR Comparison Tool
Business Case
Problem Statement
Project stakeholders need to compare:
Alternative design options
Estimate versions over time
Projects against benchmarks
Actual vs estimated costs
Solution
Structured comparison of CWICR-based estimates with variance analysis, benchmarking, and visual reporting.
Business Value
Decision support - Compare alternatives objectively
Version control - Track estimate evolution
Benchmarking - Compare against standards
Audit - Document estimate changes
Technical Implementation
import pandas as pd
import numpy as np
from typing import Dict, Any, List, Optional, Tuple
from dataclasses import dataclass, field
from datetime import datetime
from enum import Enum
class ComparisonType(Enum):
"""Types of comparisons."""
VERSION = "version" # Same project, different versions
ALTERNATIVE = "alternative" # Same project, design alternatives
BENCHMARK = "benchmark" # Project vs standard/benchmark
ACTUAL = "actual" # Estimate vs actual costs
PROJECT = "project" # Different projects