Unclear It is not stated which rule syntax the new pattern entries correspond to or which existing rules would now match differently.
What
Permission rules are the allow and deny entries that decide whether Claude may use a tool or skill without asking you. The way these rules are grouped and matched has changed.
- The helper that groups allow and deny rules by tool now returns two separate lists,
patternsandwithContent, instead of a single list calledothers. Pattern rules keep their rule names. - The matcher for skills and tools now checks each
patternsentry using both the rule and its rule name. - It checks
withContentrules only whenaliasSources().length > 0, which means only when the skill or tool has alias sources, that is, other names it can be known by.
Before, the matcher simply tested every entry in others.
Why
This may change which permission rules match, especially for skills that are reached through an alias. If a rule starts or stops applying unexpectedly, this change may be the reason.
Something disagreesSomething we can check disagrees with this entry, or the writer said they could not settle it.
The writer flagged doubt
It is not stated which rule syntax the new pattern entries correspond to or which existing rules would now match differently.