# GTR013 — Reorder `<tool>` children (codemod)

**Contract:** behaviour-preserving.
## Claim
Reordering `<tool>`'s child elements into IUC order is a no-op.

## Proof
1. `<tool>` is **`xs:all`** in every vendored XSD — order-free by schema.
2. Galaxy's child access is **tag-keyed** (`root.find("command")`,
   `findall(…)`) across `tool_util/parser/xml.py` — never positional.