ASCII Diagrams Skill

Reference standards for authoring ASCII / monospace box diagrams inside fenced (```) code blocks of Markdown (.md) skill source and literal (----) / fenced blocks of AsciiDoc (.adoc) documentation. Covers the box-drawing character conventions, the right-border column-alignment rule, and the deterministic check / fix validator that detects and repairs misaligned boxes. ASCII box diagrams are the diff-able counterpart to the visual SVGs in ref-svg-diagrams: they live in source that must stay reviewable in a unified diff, where a rendered image cannot.

Enforcement

Execution mode: Read standards/box-conventions.md before authoring or editing an ASCII box diagram, hand-author the diagram inside a code/literal block, then run the validator's check mode (Workflow Step 3) to confirm alignment.

Prohibited actions: