Notice: bmad-validate-prd is deprecated and will be removed in a future release. It now forwards to bmad-prd with validate intent. To silence this notice and access the full new customization surface (prd_template, validation_checklist, doc_standards, external_sources, external_handoffs, output_dir, output_folder_name), migrate _bmad/custom/bmad-validate-prd.toml to _bmad/custom/bmad-prd.toml and invoke bmad-prd directly next time. Customization fields that were in this version still remain in the new version and will be respected if present in _bmad/custom/bmad-prd.toml, but the new version also supports additional fields that you can take advantage of by migrating.