diff --git a/b2/_internal/arg_parser.py b/b2/_internal/arg_parser.py
index 89cb046a..52a27245 100644
--- a/b2/_internal/arg_parser.py
+++ b/b2/_internal/arg_parser.py
@@ -97,13 +97,10 @@ def __init__(
         :param for_docs: is this parser used for generating docs
         :param custom_deprecated: is this command deprecated?
         """
-        self._raw_description = None
-        self._description = None
+        self._raw_description: str | None = None
+        self._description: str | None = None
         self._for_docs = for_docs
         self.deprecated = custom_deprecated
-        self._short_description = self._make_short_description(
-            kwargs.get('usage', ''), kwargs.get('description', '')
-        )
         kwargs.setdefault('formatter_class', B2RawTextHelpFormatter)
         super().__init__(*args, **kwargs)
 
@@ -139,17 +136,13 @@ def _encode_description(self, value: str):
                 # TODO-REMOVE-BY: When rst2ansi is updated or replaced
                 return textwrap.dedent(value)
 
-    def _make_short_description(self, usage: str, raw_description: str) -> str:
-        if usage:
-            return usage
-
-        if not raw_description:
+    def _get_short_description(self) -> str:
+        if not self._raw_description:
             return ''
-
-        for line in raw_description.splitlines():
-            if line.strip():
-                return self._encode_description(line.strip())
-
+        for line in str(self._raw_description).splitlines():
+            cleaned_line = line.strip()
+            if cleaned_line:
+                return self._encode_description(cleaned_line)
         return ''
 
     def error(self, message):
@@ -217,11 +210,15 @@ def _hide_duplicated_action_choices(self, action):
         action.choices = original_choices
 
     def format_usage(self, use_short_description: bool = False, col_length: int = 16):
-        if not use_short_description or not self._short_description:
+        if not use_short_description:
+            return super().format_usage()
+
+        short_description = self._get_short_description()
+        if not short_description:
             return super().format_usage()
 
         formatter = self._get_formatter()
-        formatter.add_text(f'{self.prog:{col_length + 2}} {self._short_description}')
+        formatter.add_text(f'{self.prog:{col_length + 2}} {short_description}')
         return formatter.format_help()
 
 
diff --git a/changelog.d/+arg_parse_help_eager.fixed.md b/changelog.d/+arg_parse_help_eager.fixed.md
new file mode 100644
index 00000000..77c23b68
--- /dev/null
+++ b/changelog.d/+arg_parse_help_eager.fixed.md
@@ -0,0 +1 @@
+Avoid eager calculation of command help during parser construction.
\ No newline at end of file
diff --git a/changelog.d/+autocomplete-integration-flaky.infrastructure.md b/changelog.d/+autocomplete-integration-flaky.infrastructure.md
new file mode 100644
index 00000000..0441bcb5
--- /dev/null
+++ b/changelog.d/+autocomplete-integration-flaky.infrastructure.md
@@ -0,0 +1 @@
+Fix flaky autocomplete integration test.
\ No newline at end of file
diff --git a/test/integration/test_autocomplete.py b/test/integration/test_autocomplete.py
index a48cfd93..8a9dcddb 100644
--- a/test/integration/test_autocomplete.py
+++ b/test/integration/test_autocomplete.py
@@ -14,6 +14,7 @@
 import pytest
 
 from test.helpers import patched_spawn, skip_on_windows
+from test.integration.conftest import GENERAL_BUCKET_NAME_PREFIX
 
 TIMEOUT = 120  # CI can be slow at times when parallelization is extreme
 
@@ -100,7 +101,11 @@ def test_autocomplete_b2__download_file__b2uri(
         pytest.skip('Not supported on Docker')
     shell.send(f'{cli_version} file download \t\t')
     shell.expect_exact('b2://', timeout=TIMEOUT)
-    shell.send('b2://\t\t')
+
+    prefix_len = len(GENERAL_BUCKET_NAME_PREFIX) + 4
+    prefix = bucket_name[:prefix_len]
+    shell.send(f'b2://{prefix}\t\t')
     shell.expect_exact(bucket_name, timeout=TIMEOUT)
+
     shell.send(f'{bucket_name}/\t\t')
     shell.expect_exact(file_name, timeout=TIMEOUT)