Reproduce or continue reproducing DFT results from existing papers. Use when Codex needs to turn a paper figure, table, or claim into a traceable workflow: audit environment constraints, verify or choose a DFT engine, freeze a paper-specific case, prepare or run jobs, validate outputs against the paper, export reusable artifacts, or generate local inspection plots. Applies to the current LSMO Stage 1 workflow and to adapted reproductions for other compounds, engines, clusters, or observables.