When you try to set a setting via /config key=value that can only be changed through the interactive panel (like language, notifications, or agent view), the error message now names the exact panel location — for example: "/config (Language row)", "/config (Agents view row)", "/config (Default teammate model row)".
Evidence
Key-to-location map (search for "/config (Language row)") — Cqp map at line ~570945
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeAdded /config key=value syntax to set any setting from the prompt (e.g. /config thinking=false) — works in interactive, -p, and Remote…