Markdown Table Validator

Scan Markdown files for the structural problems that silently demote a GFM table to a plain paragraph on GitHub / VS Code preview, and optionally auto-escape the single most common cause (an unescaped | inside a cell).

Self-Evolving Skill: This skill improves through use. If the detector misses a real broken-table case, the --fix heuristic guesses wrong, or a path/flag has drifted — fix this file (and the detector SSoT) immediately, don't defer. Only update for real, reproducible issues.

Why tables break (the one rule that matters)