fix(no-ticket): do not report an input/output error from the terminal

CHANGELOG.md

@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ## [Unreleased]
 
+### Fixed
+
+- The CLI no longer sends an error report when a write fails with an input/output error (EIO). For example, this occurs when the terminal closes or the SSH session drops while a command runs. The CLI handles the error in the same way as before.
+
 ## [1.31.0] - 2026-11-11
 
 ### Added

cloudsmith_cli/core/telemetry.py

@@ -22,6 +22,7 @@
 ``sentry_sdk`` must only ever be imported inside :func:`_send`.
 """
 
+import errno
 import os
 import platform
 import re
@@ -149,10 +150,12 @@ def is_reportable(exc: BaseException) -> bool:
     ``report_to_telemetry = False``. Checked by attribute rather than by
     importing the types, so this module stays light on the error path. A failed
     TLS certificate check is a problem with the network, not with the CLI.
+    An EIO error comes from the device, such as a terminal that hung up.
     """
     return (
         getattr(exc, REPORTABLE_ATTR, True) is not False
         and find_certificate_error(exc) is None
+        and not (isinstance(exc, OSError) and exc.errno == errno.EIO)
     )
 
 

cloudsmith_cli/core/tests/test_telemetry.py

@@ -1,5 +1,6 @@
 """Tests for error reporting: opt-out controls, sending, and anonymisation."""
 
+import errno
 import importlib.util
 import json
 import socket
@@ -154,6 +155,14 @@ class SpecificUserError(UserError):
     assert sentry_events == []
 
 
+def test_device_io_errors_are_not_reported(sentry_events):
+    """A terminal that hangs up mid-command fails the next write with EIO."""
+    exc = raise_and_catch(OSError(errno.EIO, "Input/output error"))
+
+    assert telemetry.report_exception(exc) is False
+    assert sentry_events == []
+
+
 def test_exceptions_are_reportable_by_default():
     assert telemetry.is_reportable(RuntimeError("boom")) is True