Delimit: named allows collide with category blocks before the whitelist ever runs

delimitdev · reddit · 2026-09-12

The author of Delimit flags an edge case in tool permission policies: a policy can grant a named action while blocking its category (e.g., credentials, deploy). In the documented executor path, prohibited-category checks run before any action-spec whitelist, so an allowlisted action also classed under deploy gets vetoed by the category block—the named grant can't override it and delegated work stalls.

He suggests testing name-versus-category conflicts explicitly, and separately mapping which other routes never reach the same checks.

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