decode_actor_call fell back to the bare tool name whenever strip_prefix
failed, so a name actor_tools never emits under a given prefix (the bare
granted-entry name, unprefixed) still decoded. A non-empty prefix must now
be carried, or the call is refused.
precondition_roles dropped CanBroadcast's and CanReach's channel role
entirely, and describe_refusal_to_actor's roleless wording spliced "a
precondition with no role" into the "a precondition over role ..." template,
producing a garbled sentence for NoStanding, NoAudience, and an
out-of-range precondition index. precondition_roles now reads the channel
role through a shared audience_role helper, and the actor-facing roleless
case gets its own plain sentence instead of being spliced into the
role-bearing template.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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