check-§BRAND_NAME_LOWER§-input-readiness
Assess whether an input document is ready for a specific §BRAND_NAME_TITLE§ MAS entry point. Use when a user asks whether a goal, functional spec, detailed spec, technical spec, PRD, story bundle, architecture plan, or other source document is solid enough to run through §BRAND_BINARY_NAME§ with `--entry-point general-objective`, `functional-spec`, `detailed-spec`, or `technical-spec`; when deciding which entry point fits a document; or before `§BRAND_BINARY_NAME§ init --spec`.