You'll notice
Useful2 Signal2
Memory paths over 1024 bytes and reserved names like skills or hooks are now refused.
What's wrong with this entry?
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What
A memory path longer than 1024 bytes is now rejected, and callers that ask for unsafe segments to be rejected also refuse reserved directory names such as skills, commands, agents and hooks. The refusal message was rewritten and no longer echoes the raw path unescaped.
Evidence
and are not reserved names (skills, commands, agents, hooks, and similar
Strings lifted out of the shipped bundle, so the claim above can be checked against them.