Hook schema gains a required sources field, and Config tool wording changes

What

A schema is the definition Claude Code uses to check the shape of a piece of data. Two schema changes appear together.

• sources field: the schema that adds an optional shell value to a base definition now also adds sources. Unlike shell, sources is required. The member titles connect it to hooks, which are your own commands that run at set points, and to plugin hooks.
• Config tool wording: the Config tool lets Claude read and change settings. Its description of settings worked out while running now says they 'reflect what the next message will use'. Before, it said they reflected what 'will actually be sent to the API'.

Why

The Config tool description is text Claude itself reads, so it now describes these values as what the next message will use. The new required sources field means the data this schema covers must now say where it came from.