diff --git a/src/git_draft/drafter.py b/src/git_draft/drafter.py
index c240eec..04dd0b7 100644
--- a/src/git_draft/drafter.py
+++ b/src/git_draft/drafter.py
@@ -202,7 +202,6 @@ async def generate_draft(
                         {
                             "prompt_id": prompt_id,
                             "tool": o.tool,
-                            "reason": o.reason,
                             "details": json.dumps(o.details),
                             "started_at": o.start,
                         }
@@ -440,40 +439,32 @@ def __init__(self, progress: Progress) -> None:
         self.operations = list[_Operation]()
         self._progress = progress
 
-    def on_list_files(
-        self, paths: Sequence[PurePosixPath], reason: str | None
-    ) -> None:
+    def on_list_files(self, paths: Sequence[PurePosixPath]) -> None:
         count = len(paths)
         self._progress.report("Listed available files.", count=count)
-        self._record(reason, "list_files", count=count)
+        self._record("list_files", count=count)
 
-    def on_read_file(
-        self, path: PurePosixPath, contents: str | None, reason: str | None
-    ) -> None:
+    def on_read_file(self, path: PurePosixPath, contents: str | None) -> None:
         size = -1 if contents is None else len(contents)
         self._progress.report(f"Read {path}.", length=size)
-        self._record(reason, "read_file", path=str(path), size=size)
+        self._record("read_file", path=str(path), size=size)
 
-    def on_write_file(
-        self, path: PurePosixPath, contents: str, reason: str | None
-    ) -> None:
+    def on_write_file(self, path: PurePosixPath, contents: str) -> None:
         size = len(contents)
         self._progress.report(f"Wrote {path}.", length=size)
-        self._record(reason, "write_file", path=str(path), size=size)
+        self._record("write_file", path=str(path), size=size)
 
-    def on_delete_file(self, path: PurePosixPath, reason: str | None) -> None:
+    def on_delete_file(self, path: PurePosixPath) -> None:
         self._progress.report(f"Deleted {path}.")
-        self._record(reason, "delete_file", path=str(path))
+        self._record("delete_file", path=str(path))
 
     def on_rename_file(
         self,
         src_path: PurePosixPath,
         dst_path: PurePosixPath,
-        reason: str | None,
     ) -> None:
         self._progress.report(f"Renamed {src_path} to {dst_path}.")
         self._record(
-            reason,
             "rename_file",
             src_path=str(src_path),
             dst_path=str(dst_path),
@@ -481,12 +472,10 @@ def on_rename_file(
 
     def on_expose_files(self) -> None:
         self._progress.report("Exposed files.")
-        self._record(None, "expose_files")
+        self._record("expose_files")
 
-    def _record(self, reason: str | None, tool: str, **kwargs) -> None:
-        op = _Operation(
-            tool=tool, details=kwargs, reason=reason, start=datetime.now()
-        )
+    def _record(self, tool: str, **kwargs) -> None:
+        op = _Operation(tool=tool, details=kwargs, start=datetime.now())
         _logger.debug("Recorded operation. [op=%s]", op)
         self.operations.append(op)
 
@@ -497,7 +486,6 @@ class _Operation:
 
     tool: str
     details: JSONObject
-    reason: str | None
     start: datetime
 
 
diff --git a/src/git_draft/queries/add-operation.sql b/src/git_draft/queries/add-operation.sql
index 7d68cc3..76c275b 100644
--- a/src/git_draft/queries/add-operation.sql
+++ b/src/git_draft/queries/add-operation.sql
@@ -1,2 +1,2 @@
-insert into operations (prompt_id, tool, reason, details, started_at)
-  values (:prompt_id, :tool, :reason, :details, :started_at)
+insert into operations (prompt_id, tool, details, started_at)
+  values (:prompt_id, :tool, :details, :started_at)
diff --git a/src/git_draft/queries/create-tables.sql b/src/git_draft/queries/create-tables.sql
index 622746e..2c5e562 100644
--- a/src/git_draft/queries/create-tables.sql
+++ b/src/git_draft/queries/create-tables.sql
@@ -34,7 +34,6 @@ create table if not exists operations (
   id integer primary key,
   prompt_id integer not null,
   tool text not null,
-  reason text,
   details text not null,
   started_at timestamp not null,
   foreign key (prompt_id) references actions (prompt_id) on delete cascade
diff --git a/src/git_draft/store.py b/src/git_draft/store.py
index 26f8785..07030b0 100644
--- a/src/git_draft/store.py
+++ b/src/git_draft/store.py
@@ -19,7 +19,7 @@
 class Store:
     """Lightweight sqlite wrapper"""
 
-    _name = "v3.sqlite3"
+    _name = "v4.sqlite3"
 
     def __init__(self, conn: sqlite3.Connection) -> None:
         self._connection = conn
diff --git a/src/git_draft/toolbox.py b/src/git_draft/toolbox.py
index a0ffbb1..bc95d86 100644
--- a/src/git_draft/toolbox.py
+++ b/src/git_draft/toolbox.py
@@ -36,9 +36,6 @@ class Toolbox:
     # feedback more than once during a bot action, which leads to a better
     # experience when used interactively.
 
-    # TODO: Remove all reason arguments. They are not currently used, and there
-    # is no obvious use-case at the moment.
-
     def __init__(self, visitors: Sequence[ToolVisitor] | None = None) -> None:
         self._visitors = visitors or []
 
@@ -46,48 +43,34 @@ def _dispatch(self, effect: Callable[[ToolVisitor], None]) -> None:
         for visitor in self._visitors:
             effect(visitor)
 
-    def list_files(self, reason: str | None = None) -> Sequence[PurePosixPath]:
+    def list_files(self) -> Sequence[PurePosixPath]:
         paths = self._list()
-        self._dispatch(lambda v: v.on_list_files(paths, reason))
+        self._dispatch(lambda v: v.on_list_files(paths))
         return paths
 
-    def read_file(
-        self,
-        path: PurePosixPath,
-        reason: str | None = None,
-    ) -> str | None:
+    def read_file(self, path: PurePosixPath) -> str | None:
         try:
             contents = self._read(path)
         except FileNotFoundError:
             contents = None
-        self._dispatch(lambda v: v.on_read_file(path, contents, reason))
+        self._dispatch(lambda v: v.on_read_file(path, contents))
         return contents
 
-    def write_file(
-        self,
-        path: PurePosixPath,
-        contents: str,
-        reason: str | None = None,
-    ) -> None:
-        self._dispatch(lambda v: v.on_write_file(path, contents, reason))
+    def write_file(self, path: PurePosixPath, contents: str) -> None:
+        self._dispatch(lambda v: v.on_write_file(path, contents))
         return self._write(path, contents)
 
-    def delete_file(
-        self,
-        path: PurePosixPath,
-        reason: str | None = None,
-    ) -> None:
-        self._dispatch(lambda v: v.on_delete_file(path, reason))
+    def delete_file(self, path: PurePosixPath) -> None:
+        self._dispatch(lambda v: v.on_delete_file(path))
         self._delete(path)
 
     def rename_file(
         self,
         src_path: PurePosixPath,
         dst_path: PurePosixPath,
-        reason: str | None = None,
     ) -> None:
         """Rename a single file"""
-        self._dispatch(lambda v: v.on_rename_file(src_path, dst_path, reason))
+        self._dispatch(lambda v: v.on_rename_file(src_path, dst_path))
         self._rename(src_path, dst_path)
 
     def expose_files(
@@ -134,26 +117,25 @@ class ToolVisitor(Protocol):
     """Tool usage hook"""
 
     def on_list_files(
-        self, paths: Sequence[PurePosixPath], reason: str | None
+        self, paths: Sequence[PurePosixPath]
     ) -> None: ...  # pragma: no cover
 
     def on_read_file(
-        self, path: PurePosixPath, contents: str | None, reason: str | None
+        self, path: PurePosixPath, contents: str | None
     ) -> None: ...  # pragma: no cover
 
     def on_write_file(
-        self, path: PurePosixPath, contents: str, reason: str | None
+        self, path: PurePosixPath, contents: str
     ) -> None: ...  # pragma: no cover
 
     def on_delete_file(
-        self, path: PurePosixPath, reason: str | None
+        self, path: PurePosixPath
     ) -> None: ...  # pragma: no cover
 
     def on_rename_file(
         self,
         src_path: PurePosixPath,
         dst_path: PurePosixPath,
-        reason: str | None,
     ) -> None: ...  # pragma: no cover
 
     def on_expose_files(self) -> None: ...  # pragma: no cover
@@ -266,24 +248,6 @@ def _write(self, path: PurePosixPath, contents: str) -> None:
             temp.close()
             self._write_from_disk(path, Path(temp.name))
 
-    @override
-    @contextlib.contextmanager
-    def _expose(self) -> Iterator[Path]:
-        tree_sha = self.tree_sha()
-        commit_sha = self._repo.git(
-            "commit-tree", "-m", "draft! worktree", tree_sha
-        ).stdout
-        with tempfile.TemporaryDirectory() as path_str:
-            try:
-                self._repo.git(
-                    "worktree", "add", "--detach", path_str, commit_sha
-                )
-                path = Path(path_str)
-                yield path
-                self._sync_updates(worktree_path=path)
-            finally:
-                self._repo.git("worktree", "remove", "-f", path_str)
-
     def _write_from_disk(
         self, path: PurePosixPath, contents_path: Path
     ) -> None:
@@ -300,6 +264,23 @@ def _write_from_disk(
     def _delete(self, path: PurePosixPath) -> None:
         self._tree_updates.append(_DeleteBlob(path))
 
+    @override
+    @contextlib.contextmanager
+    def _expose(self) -> Iterator[Path]:
+        commit_sha = self._repo.git(
+            "commit-tree", "-m", "draft! worktree", self.tree_sha()
+        ).stdout
+        with tempfile.TemporaryDirectory() as path_str:
+            try:
+                self._repo.git(
+                    "worktree", "add", "--detach", path_str, commit_sha
+                )
+                path = Path(path_str)
+                yield path
+                self._sync_updates(worktree_path=path)
+            finally:
+                self._repo.git("worktree", "remove", "-f", path_str)
+
 
 class _TreeUpdate:
     """Generic tree update"""