diff --git a/src/codex32/_cli_input.py b/src/codex32/_cli_input.py
index cf5d25d..53ba5b9 100644
--- a/src/codex32/_cli_input.py
+++ b/src/codex32/_cli_input.py
@@ -410,36 +410,24 @@ def _correction_plan(
     byte_length: int | Literal["?"] | None,
     count: int,
     target: int | None,
-) -> tuple[tuple[int, ...], frozenset[int], frozenset[int], bool]:
+) -> tuple[int, ...]:
     if target is not None:
-        return (
-            (target,),
-            frozenset((target,)),
-            frozenset(),
-            True,
-        )
+        return (target,)
     normalized_hrp = hrp.value if isinstance(hrp, Profile) else hrp.lower()
     if normalized_hrp == Profile.CL.value:
-        return (74,), frozenset((74,)), frozenset(), True
+        return (74,)
     if isinstance(byte_length, int):
-        return (
-            ((length := _text_length(byte_length)),),
-            frozenset((length,)),
-            frozenset(),
-            True,
-        )
+        return (_text_length(byte_length),)
     if byte_length == "?":
-        return TEXT_LENGTHS, frozenset(TEXT_LENGTHS), frozenset(), True
+        return TEXT_LENGTHS
     if normalized_hrp == Profile.MS.value:
         nearest = min(_PRIMARY_MS, key=lambda length: abs(count - length))
         targets = (nearest, *(length for length in TEXT_LENGTHS if length != nearest))
-        return targets, frozenset(targets), frozenset(), True
+        return targets
     rules = _optional_profile_rules(normalized_hrp)
     if rules is not None and hasattr(rules, "text_length"):
-        targets = (rules.text_length,)
-        return targets, frozenset(targets), frozenset(), True
-    targets = tuple(sorted({count + delta for delta in (*range(-4, 5), -8, 8)}))
-    return targets, frozenset(targets), frozenset(), True
+        return (rules.text_length,)
+    return tuple(sorted({count + delta for delta in (*range(-4, 5), -8, 8)}))
 
 
 def _correction_candidates(
@@ -459,7 +447,7 @@ def _correction_candidates(
     optional_only: bool = False,
 ) -> tuple[tuple[CorrectionCandidate, ...], bool, float]:
     count = len(value.replace(" ", ""))
-    targets, primary, reduced, _timed = _correction_plan(profile, byte_length, count, target)
+    targets = _correction_plan(profile, byte_length, count, target)
     deadline = monotonic() + 10 if deadline is None else deadline
     contexts = tuple(CorrectionContext(profile, length, immutable, excluded) for length in targets)
     from codex32.indel import _search_many
@@ -467,8 +455,7 @@ def _correction_candidates(
     candidates, complete = _search_many(
         contexts,
         value,
-        primary=primary,
-        reduced=reduced,
+        primary=frozenset(targets),
         deadline=deadline,
         competitors=True,
         allowed=allowed,
diff --git a/src/codex32/cli.py b/src/codex32/cli.py
index 6e81e43..9ceae95 100644
--- a/src/codex32/cli.py
+++ b/src/codex32/cli.py
@@ -102,7 +102,7 @@ def _secret(artifacts: list[Artifact]) -> Secret:
     if not all(isinstance(artifact, Share) for artifact in artifacts):
         raise _UsageError("Recovery accepts ordinary shares or one complete secret.")
     try:
-        return recover_secret([artifact for artifact in artifacts if isinstance(artifact, Share)])
+        return recover_secret(cast(list[Share], artifacts))
     except CodexError as error:
         raise _UsageError(str(error)) from error
 
diff --git a/src/codex32/indel.py b/src/codex32/indel.py
index 26c0071..98a6369 100644
--- a/src/codex32/indel.py
+++ b/src/codex32/indel.py
@@ -552,7 +552,6 @@ def _search_many(
     damaged_text: str,
     *,
     primary: frozenset[int],
-    reduced: frozenset[int] = frozenset(),
     deadline: float | None = None,
     max_character_depth: int = 4,
     competitors: bool = False,
diff --git a/tests/test_cli.py b/tests/test_cli.py
index 889b175..82f3cfe 100644
--- a/tests/test_cli.py
+++ b/tests/test_cli.py
@@ -1835,14 +1835,13 @@ def test_correction_options_control_lengths_deadline_and_search_envelope(
     assert observed == damaged
     assert tuple(context.expected_length for context in contexts) == lengths
     assert (search.call_args.kwargs["deadline"] is not None) is bounded
-    assert search.call_args.kwargs["reduced"] == frozenset()
 
 
 def test_automatic_target_selection_covers_midpoints_and_supported_lengths() -> None:
     from codex32._cli_input import _correction_plan
 
     for observed in range(40, 136):
-        targets = _correction_plan(Profile.MS, None, observed, None)[0]
+        targets = _correction_plan(Profile.MS, None, observed, None)
         expected = 48 if observed <= 61 else 74 if observed <= 100 else 127
 
         assert targets[0] == expected
diff --git a/tests/test_correction_indel.py b/tests/test_correction_indel.py
index 646e8b5..2c860cf 100644
--- a/tests/test_correction_indel.py
+++ b/tests/test_correction_indel.py
@@ -158,7 +158,7 @@ def test_automatic_secondary_search_recovers_two_group_indels(
     damaged = _group_damage(source, inserted, omitted)
     contexts = tuple(
         CorrectionContext(Profile.MS, target, "ms1")
-        for target in _correction_plan(Profile.MS, None, len(damaged), None)[0]
+        for target in _correction_plan(Profile.MS, None, len(damaged), None)
     )
 
     candidates, complete = _search_many(
@@ -507,7 +507,6 @@ def search(state, _frontier, results, _deadline):  # type: ignore[no-untyped-def
                 contexts,
                 damaged,
                 primary=frozenset((48, 74, 127)),
-                reduced=frozenset((54, 61, 67)),
             )
         return calls
 
diff --git a/tools/correction_benchmark.py b/tools/correction_benchmark.py
index 922632d..c8d4842 100644
--- a/tools/correction_benchmark.py
+++ b/tools/correction_benchmark.py
@@ -108,7 +108,6 @@ def benchmark_cross_length(observed_length: int, *, unknown: bool = False) -> di
         contexts,
         damaged,
         primary=frozenset((48, 74, 127)),
-        reduced=frozenset() if unknown else frozenset((54, 61, 67)),
     )
     seconds = perf_counter() - started
     if not complete or candidates: