diff --git a/rslib/src/backend/card.rs b/rslib/src/backend/card.rs
index 8172f3f56..83c2d6eec 100644
--- a/rslib/src/backend/card.rs
+++ b/rslib/src/backend/card.rs
@@ -26,7 +26,7 @@ impl CardsService for Backend {
             let op = if input.skip_undo_entry {
                 None
             } else {
-                Some(UndoableOpKind::UpdateCard)
+                Some(Op::UpdateCard)
             };
             let mut card: Card = input.card.ok_or(AnkiError::NotFound)?.try_into()?;
             col.update_card_with_op(&mut card, op)
diff --git a/rslib/src/backend/notes.rs b/rslib/src/backend/notes.rs
index 5c82ad5a4..bb5331a69 100644
--- a/rslib/src/backend/notes.rs
+++ b/rslib/src/backend/notes.rs
@@ -51,7 +51,7 @@ impl NotesService for Backend {
             let op = if input.skip_undo_entry {
                 None
             } else {
-                Some(UndoableOpKind::UpdateNote)
+                Some(Op::UpdateNote)
             };
             let mut note: Note = input.note.ok_or(AnkiError::NotFound)?.into();
             col.update_note_with_op(&mut note, op)
diff --git a/rslib/src/card/mod.rs b/rslib/src/card/mod.rs
index dec89213a..85b8ffc63 100644
--- a/rslib/src/card/mod.rs
+++ b/rslib/src/card/mod.rs
@@ -3,12 +3,13 @@
 
 pub(crate) mod undo;
 
+use crate::define_newtype;
 use crate::err::{AnkiError, Result};
 use crate::notes::NoteID;
 use crate::{
-    collection::Collection, config::SchedulerVersion, timestamp::TimestampSecs, types::Usn,
+    collection::Collection, config::SchedulerVersion, prelude::*, timestamp::TimestampSecs,
+    types::Usn,
 };
-use crate::{define_newtype, undo::UndoableOpKind};
 
 use crate::{deckconf::DeckConf, decks::DeckID};
 use num_enum::TryFromPrimitive;
@@ -139,11 +140,7 @@ impl Card {
 }
 
 impl Collection {
-    pub(crate) fn update_card_with_op(
-        &mut self,
-        card: &mut Card,
-        op: Option<UndoableOpKind>,
-    ) -> Result<()> {
+    pub(crate) fn update_card_with_op(&mut self, card: &mut Card, op: Option<Op>) -> Result<()> {
         let existing = self.storage.get_card(card.id)?.ok_or(AnkiError::NotFound)?;
         self.transact(op, |col| col.update_card_inner(card, existing, col.usn()?))
     }
@@ -211,7 +208,7 @@ impl Collection {
         self.storage.set_search_table_to_card_ids(cards, false)?;
         let sched = self.scheduler_version();
         let usn = self.usn()?;
-        self.transact(Some(UndoableOpKind::SetDeck), |col| {
+        self.transact(Some(Op::SetDeck), |col| {
             for mut card in col.storage.all_searched_cards()? {
                 if card.deck_id == deck_id {
                     continue;
diff --git a/rslib/src/collection.rs b/rslib/src/collection.rs
index 2e664b087..4f1c15692 100644
--- a/rslib/src/collection.rs
+++ b/rslib/src/collection.rs
@@ -85,7 +85,7 @@ pub struct Collection {
 impl Collection {
     /// Execute the provided closure in a transaction, rolling back if
     /// an error is returned.
-    pub(crate) fn transact<F, R>(&mut self, op: Option<UndoableOpKind>, func: F) -> Result<R>
+    pub(crate) fn transact<F, R>(&mut self, op: Option<Op>, func: F) -> Result<R>
     where
         F: FnOnce(&mut Collection) -> Result<R>,
     {
diff --git a/rslib/src/config/undo.rs b/rslib/src/config/undo.rs
index 1aec6d075..3c11c300a 100644
--- a/rslib/src/config/undo.rs
+++ b/rslib/src/config/undo.rs
@@ -71,7 +71,7 @@ mod test {
     fn undo() -> Result<()> {
         let mut col = open_test_collection();
         // the op kind doesn't matter, we just need undo enabled
-        let op = Some(UndoableOpKind::Bury);
+        let op = Some(Op::Bury);
         // test key
         let key = BoolKey::NormalizeNoteText;
 
diff --git a/rslib/src/decks/mod.rs b/rslib/src/decks/mod.rs
index f0e80a4d7..2a9581fda 100644
--- a/rslib/src/decks/mod.rs
+++ b/rslib/src/decks/mod.rs
@@ -10,16 +10,14 @@ pub use crate::backend_proto::{
     deck_kind::Kind as DeckKind, filtered_search_term::FilteredSearchOrder, Deck as DeckProto,
     DeckCommon, DeckKind as DeckKindProto, FilteredDeck, FilteredSearchTerm, NormalDeck,
 };
-use crate::{
-    backend_proto as pb, markdown::render_markdown, text::sanitize_html_no_images,
-    undo::UndoableOpKind,
-};
+use crate::{backend_proto as pb, markdown::render_markdown, text::sanitize_html_no_images};
 use crate::{
     collection::Collection,
     deckconf::DeckConfID,
     define_newtype,
     err::{AnkiError, Result},
     i18n::TR,
+    prelude::*,
     text::normalize_to_nfc,
     timestamp::TimestampSecs,
     types::Usn,
@@ -283,7 +281,7 @@ impl Collection {
             return Err(AnkiError::invalid_input("deck to add must have id 0"));
         }
 
-        self.transact(Some(UndoableOpKind::AddDeck), |col| {
+        self.transact(Some(Op::AddDeck), |col| {
             let usn = col.usn()?;
             col.prepare_deck_for_update(deck, usn)?;
             deck.set_modified(usn);
@@ -293,14 +291,14 @@ impl Collection {
     }
 
     pub fn update_deck(&mut self, deck: &mut Deck) -> Result<()> {
-        self.transact(Some(UndoableOpKind::UpdateDeck), |col| {
+        self.transact(Some(Op::UpdateDeck), |col| {
             let existing_deck = col.storage.get_deck(deck.id)?.ok_or(AnkiError::NotFound)?;
             col.update_deck_inner(deck, existing_deck, col.usn()?)
         })
     }
 
     pub fn rename_deck(&mut self, did: DeckID, new_human_name: &str) -> Result<()> {
-        self.transact(Some(UndoableOpKind::RenameDeck), |col| {
+        self.transact(Some(Op::RenameDeck), |col| {
             let existing_deck = col.storage.get_deck(did)?.ok_or(AnkiError::NotFound)?;
             let mut deck = existing_deck.clone();
             deck.name = human_deck_name_to_native(new_human_name);
@@ -468,7 +466,7 @@ impl Collection {
 
     pub fn remove_decks_and_child_decks(&mut self, dids: &[DeckID]) -> Result<usize> {
         let mut card_count = 0;
-        self.transact(Some(UndoableOpKind::RemoveDeck), |col| {
+        self.transact(Some(Op::RemoveDeck), |col| {
             let usn = col.usn()?;
             for did in dids {
                 if let Some(deck) = col.storage.get_deck(*did)? {
@@ -627,7 +625,7 @@ impl Collection {
         target: Option<DeckID>,
     ) -> Result<()> {
         let usn = self.usn()?;
-        self.transact(Some(UndoableOpKind::RenameDeck), |col| {
+        self.transact(Some(Op::RenameDeck), |col| {
             let target_deck;
             let mut target_name = None;
             if let Some(target) = target {
diff --git a/rslib/src/lib.rs b/rslib/src/lib.rs
index c3a138ad0..bcbf847f2 100644
--- a/rslib/src/lib.rs
+++ b/rslib/src/lib.rs
@@ -24,6 +24,7 @@ mod markdown;
 pub mod media;
 pub mod notes;
 pub mod notetype;
+pub mod ops;
 mod preferences;
 pub mod prelude;
 pub mod revlog;
diff --git a/rslib/src/notes/mod.rs b/rslib/src/notes/mod.rs
index 18dee8f3f..900ccca52 100644
--- a/rslib/src/notes/mod.rs
+++ b/rslib/src/notes/mod.rs
@@ -306,7 +306,7 @@ impl Collection {
     }
 
     pub fn add_note(&mut self, note: &mut Note, did: DeckID) -> Result<()> {
-        self.transact(Some(UndoableOpKind::AddNote), |col| {
+        self.transact(Some(Op::AddNote), |col| {
             let nt = col
                 .get_notetype(note.notetype_id)?
                 .ok_or_else(|| AnkiError::invalid_input("missing note type"))?;
@@ -335,14 +335,10 @@ impl Collection {
 
     #[cfg(test)]
     pub(crate) fn update_note(&mut self, note: &mut Note) -> Result<()> {
-        self.update_note_with_op(note, Some(UndoableOpKind::UpdateNote))
+        self.update_note_with_op(note, Some(Op::UpdateNote))
     }
 
-    pub(crate) fn update_note_with_op(
-        &mut self,
-        note: &mut Note,
-        op: Option<UndoableOpKind>,
-    ) -> Result<()> {
+    pub(crate) fn update_note_with_op(&mut self, note: &mut Note, op: Option<Op>) -> Result<()> {
         let mut existing_note = self.storage.get_note(note.id)?.ok_or(AnkiError::NotFound)?;
         if !note_differs_from_db(&mut existing_note, note) {
             // nothing to do
@@ -398,7 +394,7 @@ impl Collection {
     /// Remove provided notes, and any cards that use them.
     pub(crate) fn remove_notes(&mut self, nids: &[NoteID]) -> Result<()> {
         let usn = self.usn()?;
-        self.transact(Some(UndoableOpKind::RemoveNote), |col| {
+        self.transact(Some(Op::RemoveNote), |col| {
             for nid in nids {
                 let nid = *nid;
                 if let Some(_existing_note) = col.storage.get_note(nid)? {
diff --git a/rslib/src/notes/undo.rs b/rslib/src/notes/undo.rs
index 02bec7443..c7e42340f 100644
--- a/rslib/src/notes/undo.rs
+++ b/rslib/src/notes/undo.rs
@@ -96,7 +96,7 @@ impl Collection {
                     op.changes.last()
                 {
                     note.id == before_change.id
-                        && op.kind == UndoableOpKind::UpdateNote
+                        && op.kind == Op::UpdateNote
                         && op.timestamp.elapsed_secs() < 60
                 } else {
                     false
diff --git a/rslib/src/ops.rs b/rslib/src/ops.rs
new file mode 100644
index 000000000..47330406c
--- /dev/null
+++ b/rslib/src/ops.rs
@@ -0,0 +1,57 @@
+// Copyright: Ankitects Pty Ltd and contributors
+// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
+
+use crate::prelude::*;
+
+#[derive(Debug, Clone, Copy, PartialEq)]
+pub enum Op {
+    AddDeck,
+    AddNote,
+    AnswerCard,
+    Bury,
+    RemoveDeck,
+    RemoveNote,
+    RenameDeck,
+    ScheduleAsNew,
+    SetDueDate,
+    Suspend,
+    UnburyUnsuspend,
+    UpdateCard,
+    UpdateDeck,
+    UpdateNote,
+    UpdatePreferences,
+    UpdateTag,
+    SetDeck,
+}
+
+impl Op {
+    pub(crate) fn needs_study_queue_reset(self) -> bool {
+        self != Op::AnswerCard
+    }
+}
+
+impl Collection {
+    pub fn describe_op_kind(&self, op: Op) -> String {
+        let key = match op {
+            Op::AddDeck => TR::UndoAddDeck,
+            Op::AddNote => TR::UndoAddNote,
+            Op::AnswerCard => TR::UndoAnswerCard,
+            Op::Bury => TR::StudyingBury,
+            Op::RemoveDeck => TR::DecksDeleteDeck,
+            Op::RemoveNote => TR::StudyingDeleteNote,
+            Op::RenameDeck => TR::ActionsRenameDeck,
+            Op::ScheduleAsNew => TR::UndoForgetCard,
+            Op::SetDueDate => TR::ActionsSetDueDate,
+            Op::Suspend => TR::StudyingSuspend,
+            Op::UnburyUnsuspend => TR::UndoUnburyUnsuspend,
+            Op::UpdateCard => TR::UndoUpdateCard,
+            Op::UpdateDeck => TR::UndoUpdateDeck,
+            Op::UpdateNote => TR::UndoUpdateNote,
+            Op::UpdatePreferences => TR::PreferencesPreferences,
+            Op::UpdateTag => TR::UndoUpdateTag,
+            Op::SetDeck => TR::BrowsingChangeDeck,
+        };
+
+        self.i18n.tr(key).to_string()
+    }
+}
diff --git a/rslib/src/preferences.rs b/rslib/src/preferences.rs
index e1b4eb80f..ada05b45b 100644
--- a/rslib/src/preferences.rs
+++ b/rslib/src/preferences.rs
@@ -10,6 +10,7 @@ use crate::{
     collection::Collection,
     config::BoolKey,
     err::Result,
+    prelude::*,
     scheduler::timing::local_minutes_west_for_stamp,
 };
 
@@ -23,10 +24,9 @@ impl Collection {
     }
 
     pub fn set_preferences(&mut self, prefs: Preferences) -> Result<()> {
-        self.transact(
-            Some(crate::undo::UndoableOpKind::UpdatePreferences),
-            |col| col.set_preferences_inner(prefs),
-        )
+        self.transact(Some(Op::UpdatePreferences), |col| {
+            col.set_preferences_inner(prefs)
+        })
     }
 
     fn set_preferences_inner(
diff --git a/rslib/src/prelude.rs b/rslib/src/prelude.rs
index 2e0d589ac..8b201112a 100644
--- a/rslib/src/prelude.rs
+++ b/rslib/src/prelude.rs
@@ -11,9 +11,9 @@ pub use crate::{
     i18n::{tr_args, tr_strs, I18n, TR},
     notes::{Note, NoteID},
     notetype::{NoteType, NoteTypeID},
+    ops::Op,
     revlog::RevlogID,
     timestamp::{TimestampMillis, TimestampSecs},
     types::Usn,
-    undo::UndoableOpKind,
 };
 pub use slog::{debug, Logger};
diff --git a/rslib/src/scheduler/answering/mod.rs b/rslib/src/scheduler/answering/mod.rs
index 87b649250..ea9b4f3cd 100644
--- a/rslib/src/scheduler/answering/mod.rs
+++ b/rslib/src/scheduler/answering/mod.rs
@@ -241,9 +241,7 @@ impl Collection {
 
     /// Answer card, writing its new state to the database.
     pub fn answer_card(&mut self, answer: &CardAnswer) -> Result<()> {
-        self.transact(Some(UndoableOpKind::AnswerCard), |col| {
-            col.answer_card_inner(answer)
-        })
+        self.transact(Some(Op::AnswerCard), |col| col.answer_card_inner(answer))
     }
 
     fn answer_card_inner(&mut self, answer: &CardAnswer) -> Result<()> {
diff --git a/rslib/src/scheduler/bury_and_suspend.rs b/rslib/src/scheduler/bury_and_suspend.rs
index 43f766bf3..69784344c 100644
--- a/rslib/src/scheduler/bury_and_suspend.rs
+++ b/rslib/src/scheduler/bury_and_suspend.rs
@@ -69,7 +69,7 @@ impl Collection {
     }
 
     pub fn unbury_or_unsuspend_cards(&mut self, cids: &[CardID]) -> Result<()> {
-        self.transact(Some(UndoableOpKind::UnburyUnsuspend), |col| {
+        self.transact(Some(Op::UnburyUnsuspend), |col| {
             col.storage.set_search_table_to_card_ids(cids, false)?;
             col.unsuspend_or_unbury_searched_cards()
         })
@@ -126,8 +126,8 @@ impl Collection {
         mode: BuryOrSuspendMode,
     ) -> Result<()> {
         let op = match mode {
-            BuryOrSuspendMode::Suspend => UndoableOpKind::Suspend,
-            BuryOrSuspendMode::BurySched | BuryOrSuspendMode::BuryUser => UndoableOpKind::Bury,
+            BuryOrSuspendMode::Suspend => Op::Suspend,
+            BuryOrSuspendMode::BurySched | BuryOrSuspendMode::BuryUser => Op::Bury,
         };
         self.transact(Some(op), |col| {
             col.storage.set_search_table_to_card_ids(cids, false)?;
diff --git a/rslib/src/scheduler/new.rs b/rslib/src/scheduler/new.rs
index 06691a421..c7cd1583d 100644
--- a/rslib/src/scheduler/new.rs
+++ b/rslib/src/scheduler/new.rs
@@ -7,9 +7,9 @@ use crate::{
     decks::DeckID,
     err::Result,
     notes::NoteID,
+    prelude::*,
     search::SortMode,
     types::Usn,
-    undo::UndoableOpKind,
 };
 use rand::seq::SliceRandom;
 use std::collections::{HashMap, HashSet};
@@ -106,7 +106,7 @@ impl Collection {
     pub fn reschedule_cards_as_new(&mut self, cids: &[CardID], log: bool) -> Result<()> {
         let usn = self.usn()?;
         let mut position = self.get_next_card_position();
-        self.transact(Some(UndoableOpKind::ScheduleAsNew), |col| {
+        self.transact(Some(Op::ScheduleAsNew), |col| {
             col.storage.set_search_table_to_card_ids(cids, true)?;
             let cards = col.storage.all_searched_cards_in_search_order()?;
             for mut card in cards {
diff --git a/rslib/src/scheduler/reviews.rs b/rslib/src/scheduler/reviews.rs
index cec735a4e..ecfa8fe1b 100644
--- a/rslib/src/scheduler/reviews.rs
+++ b/rslib/src/scheduler/reviews.rs
@@ -7,8 +7,7 @@ use crate::{
     config::StringKey,
     deckconf::INITIAL_EASE_FACTOR_THOUSANDS,
     err::Result,
-    prelude::AnkiError,
-    undo::UndoableOpKind,
+    prelude::*,
 };
 use lazy_static::lazy_static;
 use rand::distributions::{Distribution, Uniform};
@@ -100,7 +99,7 @@ impl Collection {
         let today = self.timing_today()?.days_elapsed;
         let mut rng = rand::thread_rng();
         let distribution = Uniform::from(spec.min..=spec.max);
-        self.transact(Some(UndoableOpKind::SetDueDate), |col| {
+        self.transact(Some(Op::SetDueDate), |col| {
             col.storage.set_search_table_to_card_ids(cids, false)?;
             for mut card in col.storage.all_searched_cards()? {
                 let original = card.clone();
diff --git a/rslib/src/tags/mod.rs b/rslib/src/tags/mod.rs
index 39985dd72..de437b5a9 100644
--- a/rslib/src/tags/mod.rs
+++ b/rslib/src/tags/mod.rs
@@ -341,7 +341,7 @@ impl Collection {
         tags: &[Regex],
         mut repl: R,
     ) -> Result<usize> {
-        self.transact(Some(UndoableOpKind::UpdateTag), |col| {
+        self.transact(Some(Op::UpdateTag), |col| {
             col.transform_notes(nids, |note, _nt| {
                 let mut changed = false;
                 for re in tags {
@@ -392,7 +392,7 @@ impl Collection {
         )
         .map_err(|_| AnkiError::invalid_input("invalid regex"))?;
 
-        self.transact(Some(UndoableOpKind::UpdateTag), |col| {
+        self.transact(Some(Op::UpdateTag), |col| {
             col.transform_notes(nids, |note, _nt| {
                 let mut need_to_add = true;
                 let mut match_count = 0;
diff --git a/rslib/src/undo/mod.rs b/rslib/src/undo/mod.rs
index 55a8d2449..917b10cad 100644
--- a/rslib/src/undo/mod.rs
+++ b/rslib/src/undo/mod.rs
@@ -2,10 +2,9 @@
 // License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
 
 mod changes;
-mod ops;
 
+pub use crate::ops::Op;
 pub(crate) use changes::UndoableChange;
-pub use ops::UndoableOpKind;
 
 use crate::backend_proto as pb;
 use crate::prelude::*;
@@ -15,7 +14,7 @@ const UNDO_LIMIT: usize = 30;
 
 #[derive(Debug)]
 pub(crate) struct UndoableOp {
-    pub kind: UndoableOpKind,
+    pub kind: Op,
     pub timestamp: TimestampSecs,
     pub changes: Vec<UndoableChange>,
 }
@@ -51,7 +50,7 @@ impl UndoManager {
         }
     }
 
-    fn begin_step(&mut self, op: Option<UndoableOpKind>) {
+    fn begin_step(&mut self, op: Option<Op>) {
         println!("begin: {:?}", op);
         if op.is_none() {
             self.undo_steps.clear();
@@ -88,11 +87,11 @@ impl UndoManager {
             .unwrap_or(true)
     }
 
-    fn can_undo(&self) -> Option<UndoableOpKind> {
+    fn can_undo(&self) -> Option<Op> {
         self.undo_steps.front().map(|s| s.kind)
     }
 
-    fn can_redo(&self) -> Option<UndoableOpKind> {
+    fn can_redo(&self) -> Option<Op> {
         self.redo_steps.last().map(|s| s.kind)
     }
 
@@ -102,11 +101,11 @@ impl UndoManager {
 }
 
 impl Collection {
-    pub fn can_undo(&self) -> Option<UndoableOpKind> {
+    pub fn can_undo(&self) -> Option<Op> {
         self.state.undo.can_undo()
     }
 
-    pub fn can_redo(&self) -> Option<UndoableOpKind> {
+    pub fn can_redo(&self) -> Option<Op> {
         self.state.undo.can_redo()
     }
 
@@ -156,7 +155,7 @@ impl Collection {
     }
 
     /// If op is None, clears the undo/redo queues.
-    pub(crate) fn begin_undoable_operation(&mut self, op: Option<UndoableOpKind>) {
+    pub(crate) fn begin_undoable_operation(&mut self, op: Option<Op>) {
         self.state.undo.begin_step(op);
     }
 
@@ -219,7 +218,7 @@ mod test {
 
         // record a few undo steps
         for i in 3..=4 {
-            col.transact(Some(UndoableOpKind::UpdateCard), |col| {
+            col.transact(Some(Op::UpdateCard), |col| {
                 col.get_and_update_card(cid, |card| {
                     card.interval = i;
                     Ok(())
@@ -231,41 +230,41 @@ mod test {
         }
 
         assert_eq!(col.storage.get_card(cid).unwrap().unwrap().interval, 4);
-        assert_eq!(col.can_undo(), Some(UndoableOpKind::UpdateCard));
+        assert_eq!(col.can_undo(), Some(Op::UpdateCard));
         assert_eq!(col.can_redo(), None);
 
         // undo a step
         col.undo().unwrap();
         assert_eq!(col.storage.get_card(cid).unwrap().unwrap().interval, 3);
-        assert_eq!(col.can_undo(), Some(UndoableOpKind::UpdateCard));
-        assert_eq!(col.can_redo(), Some(UndoableOpKind::UpdateCard));
+        assert_eq!(col.can_undo(), Some(Op::UpdateCard));
+        assert_eq!(col.can_redo(), Some(Op::UpdateCard));
 
         // and again
         col.undo().unwrap();
         assert_eq!(col.storage.get_card(cid).unwrap().unwrap().interval, 2);
         assert_eq!(col.can_undo(), None);
-        assert_eq!(col.can_redo(), Some(UndoableOpKind::UpdateCard));
+        assert_eq!(col.can_redo(), Some(Op::UpdateCard));
 
         // redo a step
         col.redo().unwrap();
         assert_eq!(col.storage.get_card(cid).unwrap().unwrap().interval, 3);
-        assert_eq!(col.can_undo(), Some(UndoableOpKind::UpdateCard));
-        assert_eq!(col.can_redo(), Some(UndoableOpKind::UpdateCard));
+        assert_eq!(col.can_undo(), Some(Op::UpdateCard));
+        assert_eq!(col.can_redo(), Some(Op::UpdateCard));
 
         // and another
         col.redo().unwrap();
         assert_eq!(col.storage.get_card(cid).unwrap().unwrap().interval, 4);
-        assert_eq!(col.can_undo(), Some(UndoableOpKind::UpdateCard));
+        assert_eq!(col.can_undo(), Some(Op::UpdateCard));
         assert_eq!(col.can_redo(), None);
 
         // and undo the redo
         col.undo().unwrap();
         assert_eq!(col.storage.get_card(cid).unwrap().unwrap().interval, 3);
-        assert_eq!(col.can_undo(), Some(UndoableOpKind::UpdateCard));
-        assert_eq!(col.can_redo(), Some(UndoableOpKind::UpdateCard));
+        assert_eq!(col.can_undo(), Some(Op::UpdateCard));
+        assert_eq!(col.can_redo(), Some(Op::UpdateCard));
 
         // if any action is performed, it should clear the redo queue
-        col.transact(Some(UndoableOpKind::UpdateCard), |col| {
+        col.transact(Some(Op::UpdateCard), |col| {
             col.get_and_update_card(cid, |card| {
                 card.interval = 5;
                 Ok(())
@@ -275,7 +274,7 @@ mod test {
         })
         .unwrap();
         assert_eq!(col.storage.get_card(cid).unwrap().unwrap().interval, 5);
-        assert_eq!(col.can_undo(), Some(UndoableOpKind::UpdateCard));
+        assert_eq!(col.can_undo(), Some(Op::UpdateCard));
         assert_eq!(col.can_redo(), None);
 
         // and any action that doesn't support undoing will clear both queues
diff --git a/rslib/src/undo/ops.rs b/rslib/src/undo/ops.rs
deleted file mode 100644
index e505b2fa5..000000000
--- a/rslib/src/undo/ops.rs
+++ /dev/null
@@ -1,57 +0,0 @@
-// Copyright: Ankitects Pty Ltd and contributors
-// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
-
-use crate::prelude::*;
-
-#[derive(Debug, Clone, Copy, PartialEq)]
-pub enum UndoableOpKind {
-    AddDeck,
-    AddNote,
-    AnswerCard,
-    Bury,
-    RemoveDeck,
-    RemoveNote,
-    RenameDeck,
-    ScheduleAsNew,
-    SetDueDate,
-    Suspend,
-    UnburyUnsuspend,
-    UpdateCard,
-    UpdateDeck,
-    UpdateNote,
-    UpdatePreferences,
-    UpdateTag,
-    SetDeck,
-}
-
-impl UndoableOpKind {
-    pub(crate) fn needs_study_queue_reset(self) -> bool {
-        self != UndoableOpKind::AnswerCard
-    }
-}
-
-impl Collection {
-    pub fn describe_op_kind(&self, op: UndoableOpKind) -> String {
-        let key = match op {
-            UndoableOpKind::AddDeck => TR::UndoAddDeck,
-            UndoableOpKind::AddNote => TR::UndoAddNote,
-            UndoableOpKind::AnswerCard => TR::UndoAnswerCard,
-            UndoableOpKind::Bury => TR::StudyingBury,
-            UndoableOpKind::RemoveDeck => TR::DecksDeleteDeck,
-            UndoableOpKind::RemoveNote => TR::StudyingDeleteNote,
-            UndoableOpKind::RenameDeck => TR::ActionsRenameDeck,
-            UndoableOpKind::ScheduleAsNew => TR::UndoForgetCard,
-            UndoableOpKind::SetDueDate => TR::ActionsSetDueDate,
-            UndoableOpKind::Suspend => TR::StudyingSuspend,
-            UndoableOpKind::UnburyUnsuspend => TR::UndoUnburyUnsuspend,
-            UndoableOpKind::UpdateCard => TR::UndoUpdateCard,
-            UndoableOpKind::UpdateDeck => TR::UndoUpdateDeck,
-            UndoableOpKind::UpdateNote => TR::UndoUpdateNote,
-            UndoableOpKind::UpdatePreferences => TR::PreferencesPreferences,
-            UndoableOpKind::UpdateTag => TR::UndoUpdateTag,
-            UndoableOpKind::SetDeck => TR::BrowsingChangeDeck,
-        };
-
-        self.i18n.tr(key).to_string()
-    }
-}