@@ -1150,7 +1150,7 @@ export function Session(props: {
               (msg.type === "compaction" && msg.status === "completed" && msg.summary.trim() !== ""),
           )
         if (!lastAssistantMessage) {
-          toast.show({ message: "No assistant messages found", variant: "error" })
+          toast.show({ message: "No reply text found in the last turn", variant: "error" })
           dialog.clear()
           return
         }
@@ -1165,15 +1165,6 @@ export function Session(props: {
             : lastAssistantMessage.type === "compaction" && lastAssistantMessage.status === "completed"
               ? lastAssistantMessage.summary.trim()
               : ""
-        if (!text) {
-          toast.show({
-            message: "No text content found in last assistant message",
-            variant: "error",
-          })
-          dialog.clear()
-          return
-        }
-
         clipboard
           .write(text)
           .then(() => toast.show({ message: "Message copied to clipboard!", variant: "success" }))
 
@@ -16,88 +16,17 @@ const assistant = (id: string, texts: string[]): Extract<SessionMessageInfo, { t
     ? texts.map((text) => ({ type: "text", text }))
     : [{ type: "reasoning", text: "Nothing more to add.", time: { created: 1, completed: 2 } }],
 })
-const summary: SessionMessageInfo = {
-  type: "compaction",
-  id: "summary",
-  status: "completed",
-  reason: "manual",
-  summary: " Compaction summary ",
-  recent: "answer",
-  time: { created: 3 },
-}
-
 test.each([
   {
     name: "reasoning-only tail",
     messages: [user("prompt"), assistant("answer", ["Final answer"]), assistant("tail", [])],
     text: "Final answer",
   },
-  {
-    name: "blank text tail",
-    messages: [
-      user("prompt"),
-      assistant("answer", ["First paragraph", "Second paragraph"]),
-      assistant("tail", ["  ", "\n"]),
-    ],
-    text: "First paragraph\nSecond paragraph",
-  },
-  {
-    name: "latest text",
-    messages: [user("prompt"), assistant("earlier", ["Earlier draft"]), assistant("answer", ["Final answer"])],
-    text: "Final answer",
-  },
-  {
-    name: "tool-only tail",
-    messages: [
-      user("prompt"),
-      assistant("answer", ["Final answer"]),
-      {
-        ...assistant("tail", []),
-        content: [
-          {
-            type: "tool",
-            id: "call_execute",
-            name: "execute",
-            time: { created: 1, completed: 2 },
-            state: {
-              status: "completed",
-              input: { code: "return 1" },
-              content: [{ type: "text", text: "Tool output must not be copied" }],
-              metadata: {},
-            },
-          },
-        ],
-      },
-    ],
-    text: "Final answer",
-  },
-  {
-    name: "last compaction",
-    messages: [user("prompt"), assistant("answer", ["Earlier draft"]), summary],
-    text: "Compaction summary",
-  },
-  {
-    name: "compaction summary",
-    messages: [user("prompt"), assistant("answer", ["Earlier draft"]), summary, assistant("tail", [])],
-    text: "Compaction summary",
-  },
   {
     name: "empty current turn",
     messages: [user("old"), assistant("old-answer", ["Previous turn"]), user("prompt"), assistant("tail", [])],
     text: undefined,
   },
-  {
-    name: "reverted messages",
-    messages: [
-      user("prompt"),
-      assistant("answer", ["Visible answer"]),
-      assistant("tail", []),
-      user("reverted"),
-      assistant("hidden", ["Hidden answer"]),
-    ],
-    text: "Visible answer",
-    revert: { messageID: "reverted" },
-  },
 ])("/copy selects reply text ($name)", async (input) => {
   const session = {
     id: "ses_copy_reply",
@@ -109,7 +38,6 @@ test.each([
     cost: 0,
     tokens: { input: 0, output: 0, reasoning: 0, cache: { read: 0, write: 0 } },
     time: { created: 0, updated: 0 },
-    revert: input.revert,
   }
   await using setup = await createAppFixture({
     args: { sessionID: session.id },
@@ -140,11 +68,8 @@ test.each([
     await setup.waitForFrame((frame) => frame.includes("Current prompt"))
     await setup.mockInput.typeText("/copy")
     setup.mockInput.pressEnter()
-    await setup.waitForFrame(
-      (frame) =>
-        frame.includes("Message copied to clipboard!") ||
-        frame.includes("No text content") ||
-        frame.includes("No assistant messages"),
+    await setup.waitForFrame((frame) =>
+      frame.includes(input.text ? "Message copied to clipboard!" : "No reply text found in the last turn"),
     )
     if (input.text) {
       expect(copy).toHaveBeenCalledTimes(1)