diff --git a/src/v2/legacy-client.ts b/src/v2/legacy-client.ts
index 2f7a11bc..d9d36adb 100644
--- a/src/v2/legacy-client.ts
+++ b/src/v2/legacy-client.ts
@@ -239,8 +239,22 @@ export function toLegacyEvent(raw: any): { type: string; properties: any } {
   const envelope = raw?.payload ?? raw;
   const source = envelope?.type === "sync" && envelope.syncEvent ? envelope.syncEvent : envelope;
   const rawType = typeof source?.type === "string" ? source.type.replace(/\.1$/, "") : source?.type;
-  const type = rawType === "session.compaction.ended" ? "session.compacted" : rawType;
   const data = source?.data ?? {};
+  // OpenCode v2 no longer emits the deprecated `session.idle` (nor an idle
+  // `session.status`). A finished session execution is the equivalent signal,
+  // so translate it back for the V1 idle handler (auto-capture and
+  // user-profile learning).
+  const isIdleStatus = rawType === "session.status" && data?.status?.type === "idle";
+  const isExecutionEnd =
+    rawType === "session.execution.succeeded" ||
+    rawType === "session.execution.failed" ||
+    rawType === "session.execution.interrupted";
+  const type =
+    rawType === "session.compaction.ended"
+      ? "session.compacted"
+      : isIdleStatus || isExecutionEnd
+        ? "session.idle"
+        : rawType;
   if (source && typeof source === "object" && "properties" in source) {
     return { type, properties: source.properties };
   }
diff --git a/tests/v2-legacy-client.test.ts b/tests/v2-legacy-client.test.ts
index d2870cff..de3d0f49 100644
--- a/tests/v2-legacy-client.test.ts
+++ b/tests/v2-legacy-client.test.ts
@@ -121,6 +121,45 @@ describe("OpenCode v2 legacy client bridge", () => {
     });
   });
 
+  it("maps V2 idle session.status events back to session.idle", () => {
+    expect(
+      toLegacyEvent({
+        type: "session.status",
+        data: { sessionID: "ses-1", status: { type: "idle" } },
+      })
+    ).toEqual({
+      type: "session.idle",
+      properties: { sessionID: "ses-1", status: { type: "idle" } },
+    });
+    // Non-idle statuses and unrelated event types pass through untouched.
+    expect(
+      toLegacyEvent({
+        type: "session.status",
+        data: { sessionID: "ses-1", status: { type: "busy" } },
+      }).type
+    ).toBe("session.status");
+    expect(toLegacyEvent({ type: "message.updated", data: { sessionID: "ses-1" } }).type).toBe(
+      "message.updated"
+    );
+  });
+
+  it("maps finished V2 session executions to session.idle", () => {
+    for (const type of [
+      "session.execution.succeeded",
+      "session.execution.failed",
+      "session.execution.interrupted",
+    ]) {
+      expect(toLegacyEvent({ type, data: { sessionID: "ses-1" } })).toEqual({
+        type: "session.idle",
+        properties: { sessionID: "ses-1" },
+      });
+    }
+    // Execution lifecycle start is not a turn end and must not trigger capture.
+    expect(
+      toLegacyEvent({ type: "session.execution.started", data: { sessionID: "ses-1" } }).type
+    ).toBe("session.execution.started");
+  });
+
   it("filters the global event stream by direct or session location", async () => {
     const ctx = createContext();
     expect(