Replication Package for "Building AI-Intensive Software with AI: Early Results and a Cautionary Tale on Measuring Development Cost"

Supporting replication package for the paper "Building AI-Intensive Software with AI: Early Results and a Cautionary Tale on Measuring Development Cost", accepted at the CBSoft 2026 (ISE track). This package contains the underlying empirical records, development logs, counterfactual reference models, prompt catalogs, and provider billing artifacts used to trace and evaluate the cost analysis reported in the paper. Contents: data/workflow-document.md: Full development log and three-layer economic data. data/development-log.csv: Per-activity structured metrics (tokens, AI cost, human hours, counterfactual estimates). data/salary-references.md: Regional hourly rate assumptions, conversion methodologies, and profile assignments. data/*-billing-*.png: Anonymized provider billing records from OpenAI and Abacus AI. prompts/prompt-catalogue.md: Versioned application prompts (PROMPT-001 to PROMPT-010) used in the system.