/validate

Validate project structure and consistency. Checks plan.md/task.md sync, orphan documents, missing files, and frontmatter validity. Use --deep for content validation (page count, structure compliance).

# Project Validation Command

## Context

- File sizes: !`wc -l plan.md task.md 2>/dev/null || echo "Files not found"`
- Document count: !`ls -1 docs/*.md 2>/dev/null | wc -l || echo "0"`
- Docs directory exists: !`ls -d docs 2>/dev/null && echo "yes" || echo "no"`

## Arguments

- `$ARGUMENTS`: Contains "--deep" if deep validation requested

## Task

Validate the learning resource project structure and report issues.

### Step 1: Check Core Files Exist

Required files:
- `plan.md` - Project structure and plan
- `task.md` - Task checklist
- `persona.md` - Writer/reader persona (optional but...