EPRAG v1.0.0 This is the first archival release of the reproducibility repository accompanying the manuscript: EPRAG: An Epistemic Policy Framework for Action Selection in Multi-Source Enterprise Retrieval-Augmented Generation The repository contains the code, configurations, prompts, public evaluation artifacts, aggregate results, and documentation required to inspect and reproduce the main analyses reported in the study. Included materials Reference implementation of the EPRAG decision-policy pipeline Public BIRD-derived evaluation artifacts and predictions Taxonomy-blind public audit materials and trusted annotations Structured GPT-5 judge evaluation outputs Counterfactual-answerability candidate and threshold sensitivity results Baseline and ablation outputs Non-sensitive helpdesk schema, synthetic workbook template, label-derivation documentation, and aggregate results Manuscript-aligned configuration files File manifest and SHA-256 checksums Evaluation subsets Public BIRD-derived benchmark: n = 720 Taxonomy-blind public audit: n = 200 Structured GPT-5 judge: BIRD-derived subset: n = 240 Helpdesk subset: n = 100 Answerability sensitivity subset: n = 96 Privacy and availability The private university helpdesk records are not included because they contain operational and potentially sensitive information. Only non-sensitive schemas, synthetic templates, label-derivation rules, prediction-level metadata where permissible, and aggregate results are provided. This release does not contain the manuscript, LaTeX sources, reviewer correspondence, cover letters, or journal-submission files. Version Version: 1.0.0 This release represents the frozen archival version associated with the manuscript.