Pre-commit Fix

Diagnose and fix pre-commit hook failures for this repo.

Common Failures

rumdl MD041 / MD065 — YAML frontmatter not recognised

Symptom: MD041 First line in file should be a level 1 heading or MD065 Missing blank line after horizontal rule [fixed] on .claude/agents/*.md or .claude/skills/*/SKILL.md.

Cause: rumdl treats a lone --- as a Markdown horizontal rule, not as the start of YAML frontmatter. It inserts a blank line after --- (breaking the frontmatter) and then fails MD041 because the H1 is no longer the first line.

Fix: Every agent/skill Markdown file must use a proper opening and closing --- delimiter: