0891556cb4
The `mode: 'code'` qualification landed on the module header and `isBareIdentifier` but not on the other three sites the same reviews enumerated. `UNPRINTABLE`'s "only declaration of the tools", the open-object comment's "only signal that extra keys are accepted", and the docstring comment's "only description of what a tool does" are each false under `mode: 'both'`, where the native schemas ship alongside the SDK. Widen the note's predicate-path sentence past head and last position: a character added to `XID_Continue` passes `IDENTIFIER`'s trailing quantifier anywhere after the head, the middle of a name included. Record the ƛ test's table provenance. U+A7DC and the U+019B mapping to it both arrive in Unicode 16.0, and the engines floor sits exactly there: Node 22.19.0 reports Unicode 16.0 (ICU 77.1) and produces the mapping.