diataxis-explanation

Write, expand, or audit explanation — understanding-oriented documentation in the Diátaxis sense: discursive discussion that deepens the reader's grasp of a topic, read away from the work itself. Use whenever the user wants an architecture overview, design-rationale or "why did we build it this way" doc, concept guide, background or theory piece, ADR-style context, a "philosophy of X" or "about X" article, or asks to capture the reasoning behind a decision — even if they never say "explanation". Also loaded by the diataxis router when the compass points to cognition + acquisition: the reader wants to *understand*, as *study*. If the content is facts to consult mid-work, that's diataxis-reference; if it directs a task, that's diataxis-how-to. When the type is in doubt or mixed, consult the diataxis skill first.