Replication Package for "Augmentation with Dilution: A Large-Scale Empirical Study of Human Contributor Ecosystems After AI Coding Agent Adoption"

Replication package for the paper “Augmentation with Dilution: A Large-Scale Empirical Study of Human Contributor Ecosystems After AI Coding Agent Adoption”. It contains the SQL queries, Python and R scripts, the GitHub API pull request records, the agent-trace scan databases, the matched samples and the outputs needed to reproduce the estimates, tables and figures of Sections 4 and 5, together with the analysis plan and its commit history. See README.md for the mapping from each result to its script.