Auto-upgraded during /graphify invocation. Notable SKILL.md changes:
safer AST cache_root (pin to cwd), clearer node ID format docs with
concrete example, new Step 6b Wiki export (opt-in via --wiki),
--update now persists merged extraction back to .graphify_extract.json
so Step 4 sees the full graph.
Co-Authored-By: Claude <noreply@anthropic.com>