bedrock

Build and sharpen a project's domain model. Use when the user wants to pin down domain terminology or a ubiquitous language, record an architectural decision, or when another skill needs to maintain the domain model.

Craft rules for technical documentation prose — structure, voice, headings, steps, tables, callouts, and forbidden filler. Use when writing, reviewing, or revising developer docs (guides, tutorials, how-tos, reference, concept pages, READMEs). Pairs with the diataxis skill: diataxis decides *what kind* of page this is, this skill governs *how each sentence lands*.

Functional programming patterns with immutable data. Use when writing logic or data transformations.