Both recorders are (self, **fields), not explicit parameter lists, so a
new column needs no signature change on them — COLUMNS plus an emitter
that passes it is enough. The port Protocol stays explicit because that
is where the emitter's contract and the freeze test anchor.
Everything up to and including the full slow suite runs on the branch
without asking. Merging to main, pushing a tag, and uploading to the
registry cannot be taken back, and a registry version number cannot be
reused, so those wait for an explicit yes.
Also settles three things an executor would have tripped on: the
_AttemptUsage field is typed as the enum with .value applied only at
the recorder boundary, __all__ is not in strict alphabetical order, and
the port signature test freezes two params rather than the full list.
Each task carries its own failing-then-passing evidence and a command
whose output decides whether it is done. Two traps are called out where
an executor would otherwise walk into them: the enum has to live in
types.py or import-linter rejects the layering, and the 24 in
test_telemetry.py line 1787 counts OCR placeholder characters, not
telemetry columns.
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