SDLang / KDL / XDL dual-track decision

Locked the human-config advisory path after comparing classic SDLang, KDL, and Extended SDL (XDL / newsdlang).

Decision

  • SDLang — keep for DevCentr-owned .sdl catalogs and settings (sdlang-d).

  • KDL — prefer for greenfield / cross-language documents (D: kdl-d).

  • XDL — do not adopt (specs stubbed, impl immature, KDL-compat dropped).

Touched

  • This page’s parent: structured-data-formats.adoc

  • DevCentr: sdl.adoc, content-types.sdl

  • agent-rules: RULES.md, general/creator.md