Command argument parsing gains a 'compound' type for schema fields typed unknown or any, plus a new skip list
Claude Code has an internal helper that turns text arguments typed at the command line into properly typed values, such as arrays, objects, booleans, and numbers, based on a schema. That helper now adds a 'compound' type: when a schema field is typed as "unknown" or "any", the value is treated as either an array or an object depending on what was actually passed. The helper also now skips coercion entirely for a new set of excluded keys.
This makes command arguments with loosely-typed schema fields behave more sensibly instead of being coerced incorrectly or left as a plain string, while the exclusion list keeps coercion from being applied where it shouldn't be.
The finding does not say which keys are in the new exclusion set or what problem prompted it.