Four holes. Two empty literals agree with each other, so a module that
registers nothing passed every rule. A del could retire a node the
scanner goes on advertising - the mirror image of the update() case
already covered. An alias made the mutation invisible: _registry =
NODE_CLASS_MAPPINGS then _registry.update(...) never says the mapping
name at all. And the permanent-id check grepped the whole file for
AUSBOSS_NODES_*, so a key renamed in the literal kept passing as long as
the old id survived in a docstring or a search alias.
The contract is now that a mapping is assigned once to a non-empty dict
literal and its name is never used again. That is what makes the rest
enforceable: the alias is refused where it is made, the last point
anything static can still see it, rather than chased through code no
checker can follow. Permanent ids are measured against the keys parsed
out of the literal.
bad_empty, bad_delete and bad_alias join the fixtures; each one was
dropped into nodes/ and confirmed to exit 1 on its own line.
ausboss
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