# GTR018.1 — Wrap `<command>` in CDATA (partition fix)

**Contract:** behaviour-preserving.
## Claim
Wrapping a pure-text `<command>` body in CDATA is a parse-level no-op.

## Proof
A CDATA section and equivalently-escaped character data parse to the
**identical** `.text` (XML 1.0 §2.7); Galaxy reads tool XML through its parser,
never raw bytes. The `cdata_wrappable` predicate excludes the one
representable-but-lossy case: `\r` (CDATA cannot carry `&#13;`; PR #112).

## Scope boundary
Mixed-content bodies cannot be CDATA-wrapped at all (XML: a CDATA section
cannot contain elements) — the GTR018.2 advisory reports them.