diff --git a/apps/macos/Sources/Clawdis/SessionActions.swift b/apps/macos/Sources/Clawdis/SessionActions.swift
index 177f53134..fb427cc56 100644
--- a/apps/macos/Sources/Clawdis/SessionActions.swift
+++ b/apps/macos/Sources/Clawdis/SessionActions.swift
@@ -5,8 +5,7 @@ enum SessionActions {
     static func patchSession(
         key: String,
         thinking: String?? = nil,
-        verbose: String?? = nil,
-        syncing: SessionSyncingValue?? = nil) async throws
+        verbose: String?? = nil) async throws
     {
         var params: [String: AnyHashable] = ["key": AnyHashable(key)]
 
@@ -16,20 +15,6 @@ enum SessionActions {
         if let verbose {
             params["verboseLevel"] = verbose.map(AnyHashable.init) ?? AnyHashable(NSNull())
         }
-        if let syncing {
-            let payload: AnyHashable = {
-                switch syncing {
-                case .none:
-                    AnyHashable(NSNull())
-                case let .some(value):
-                    switch value {
-                    case let .bool(v): AnyHashable(v)
-                    case let .string(v): AnyHashable(v)
-                    }
-                }
-            }()
-            params["syncing"] = payload
-        }
 
         _ = try await ControlChannel.shared.request(method: "sessions.patch", params: params)
     }
diff --git a/apps/macos/Sources/Clawdis/SessionData.swift b/apps/macos/Sources/Clawdis/SessionData.swift
index bb0390169..ebfbaac7f 100644
--- a/apps/macos/Sources/Clawdis/SessionData.swift
+++ b/apps/macos/Sources/Clawdis/SessionData.swift
@@ -1,65 +1,6 @@
 import Foundation
 import SwiftUI
 
-enum SessionSyncingValue: Codable, Equatable {
-    case bool(Bool)
-    case string(String)
-
-    init(from decoder: Decoder) throws {
-        let container = try decoder.singleValueContainer()
-        if let value = try? container.decode(Bool.self) {
-            self = .bool(value)
-            return
-        }
-        if let value = try? container.decode(String.self) {
-            self = .string(value)
-            return
-        }
-        throw DecodingError.typeMismatch(
-            SessionSyncingValue.self,
-            DecodingError.Context(
-                codingPath: decoder.codingPath,
-                debugDescription: "Expected Bool or String"))
-    }
-
-    func encode(to encoder: Encoder) throws {
-        var container = encoder.singleValueContainer()
-        switch self {
-        case let .bool(value):
-            try container.encode(value)
-        case let .string(value):
-            try container.encode(value)
-        }
-    }
-
-    var isOn: Bool {
-        switch self {
-        case let .bool(value):
-            value
-        case let .string(value):
-            value.lowercased() == "on"
-        }
-    }
-
-    var isOff: Bool {
-        switch self {
-        case let .bool(value):
-            !value
-        case let .string(value):
-            value.lowercased() == "off"
-        }
-    }
-
-    var label: String {
-        switch self {
-        case let .bool(value):
-            value ? "on" : "off"
-        case let .string(value):
-            value
-        }
-    }
-}
-
 struct GatewaySessionDefaultsRecord: Codable {
     let model: String?
     let contextTokens: Int?
@@ -73,7 +14,6 @@ struct GatewaySessionEntryRecord: Codable {
     let abortedLastRun: Bool?
     let thinkingLevel: String?
     let verboseLevel: String?
-    let syncing: SessionSyncingValue?
     let inputTokens: Int?
     let outputTokens: Int?
     let totalTokens: Int?
@@ -129,7 +69,6 @@ struct SessionRow: Identifiable {
     let sessionId: String?
     let thinkingLevel: String?
     let verboseLevel: String?
-    let syncing: SessionSyncingValue?
     let systemSent: Bool
     let abortedLastRun: Bool
     let tokens: SessionTokenStats
@@ -141,13 +80,6 @@ struct SessionRow: Identifiable {
         var flags: [String] = []
         if let thinkingLevel { flags.append("think \(thinkingLevel)") }
         if let verboseLevel { flags.append("verbose \(verboseLevel)") }
-        if let syncing {
-            if syncing.isOn {
-                flags.append("syncing")
-            } else if !syncing.label.isEmpty {
-                flags.append("sync \(syncing.label)")
-            }
-        }
         if self.systemSent { flags.append("system sent") }
         if self.abortedLastRun { flags.append("aborted") }
         return flags
@@ -199,7 +131,6 @@ extension SessionRow {
                 sessionId: "sess-direct-1234",
                 thinkingLevel: "low",
                 verboseLevel: "info",
-                syncing: .bool(true),
                 systemSent: false,
                 abortedLastRun: false,
                 tokens: SessionTokenStats(input: 320, output: 680, total: 1000, contextTokens: 200_000),
@@ -212,7 +143,6 @@ extension SessionRow {
                 sessionId: "sess-group-4321",
                 thinkingLevel: "medium",
                 verboseLevel: nil,
-                syncing: nil,
                 systemSent: true,
                 abortedLastRun: true,
                 tokens: SessionTokenStats(input: 5000, output: 1200, total: 6200, contextTokens: 200_000),
@@ -225,7 +155,6 @@ extension SessionRow {
                 sessionId: nil,
                 thinkingLevel: nil,
                 verboseLevel: nil,
-                syncing: nil,
                 systemSent: false,
                 abortedLastRun: false,
                 tokens: SessionTokenStats(input: 150, output: 220, total: 370, contextTokens: 200_000),
@@ -344,7 +273,6 @@ enum SessionLoader {
                 sessionId: entry.sessionId,
                 thinkingLevel: entry.thinkingLevel,
                 verboseLevel: entry.verboseLevel,
-                syncing: entry.syncing,
                 systemSent: entry.systemSent ?? false,
                 abortedLastRun: entry.abortedLastRun ?? false,
                 tokens: SessionTokenStats(
diff --git a/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatSessions.swift b/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatSessions.swift
index 43dfdfaa6..475528275 100644
--- a/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatSessions.swift
+++ b/apps/shared/ClawdisKit/Sources/ClawdisChatUI/ChatSessions.swift
@@ -5,38 +5,6 @@ public struct ClawdisChatSessionsDefaults: Codable, Sendable {
     public let contextTokens: Int?
 }
 
-public enum ClawdisChatSessionSyncing: Codable, Hashable, Sendable {
-    case bool(Bool)
-    case string(String)
-
-    public init(from decoder: Decoder) throws {
-        let container = try decoder.singleValueContainer()
-        if let b = try? container.decode(Bool.self) {
-            self = .bool(b)
-            return
-        }
-        if let s = try? container.decode(String.self) {
-            self = .string(s)
-            return
-        }
-        throw DecodingError.typeMismatch(
-            ClawdisChatSessionSyncing.self,
-            DecodingError.Context(
-                codingPath: decoder.codingPath,
-                debugDescription: "Expected Bool or String"))
-    }
-
-    public func encode(to encoder: Encoder) throws {
-        var container = encoder.singleValueContainer()
-        switch self {
-        case let .bool(b):
-            try container.encode(b)
-        case let .string(s):
-            try container.encode(s)
-        }
-    }
-}
-
 public struct ClawdisChatSessionEntry: Codable, Identifiable, Sendable, Hashable {
     public var id: String { self.key }
 
@@ -56,7 +24,6 @@ public struct ClawdisChatSessionEntry: Codable, Identifiable, Sendable, Hashable
 
     public let model: String?
     public let contextTokens: Int?
-    public let syncing: ClawdisChatSessionSyncing?
 }
 
 public struct ClawdisChatSessionsListResponse: Codable, Sendable {
diff --git a/src/commands/status.test.ts b/src/commands/status.test.ts
index 7faa799e7..ba5855b35 100644
--- a/src/commands/status.test.ts
+++ b/src/commands/status.test.ts
@@ -12,7 +12,6 @@ const mocks = vi.hoisted(() => ({
       model: "pi:opus",
       sessionId: "abc123",
       systemSent: true,
-      syncing: true,
     },
   }),
   resolveStorePath: vi.fn().mockReturnValue("/tmp/sessions.json"),
@@ -56,7 +55,6 @@ describe("statusCommand", () => {
     expect(payload.sessions.recent[0].percentUsed).toBe(50);
     expect(payload.sessions.recent[0].remainingTokens).toBe(5000);
     expect(payload.sessions.recent[0].flags).toContain("verbose:on");
-    expect(payload.sessions.recent[0].flags).toContain("syncing");
   });
 
   it("prints formatted lines otherwise", async () => {
diff --git a/src/commands/status.ts b/src/commands/status.ts
index a54eb2fa6..54de3d097 100644
--- a/src/commands/status.ts
+++ b/src/commands/status.ts
@@ -29,7 +29,6 @@ export type SessionStatus = {
   verboseLevel?: string;
   systemSent?: boolean;
   abortedLastRun?: boolean;
-  syncing?: boolean | string;
   inputTokens?: number;
   outputTokens?: number;
   totalTokens: number | null;
@@ -101,7 +100,6 @@ export async function getStatusSummary(): Promise<StatusSummary> {
         verboseLevel: entry?.verboseLevel,
         systemSent: entry?.systemSent,
         abortedLastRun: entry?.abortedLastRun,
-        syncing: entry?.syncing,
         inputTokens: entry?.inputTokens,
         outputTokens: entry?.outputTokens,
         totalTokens: total ?? null,
@@ -178,10 +176,6 @@ const buildFlags = (entry: SessionEntry): string[] => {
     flags.push(`verbose:${verbose}`);
   if (entry?.systemSent) flags.push("system");
   if (entry?.abortedLastRun) flags.push("aborted");
-  const syncing = entry?.syncing as unknown;
-  if (syncing === true || syncing === "on") flags.push("syncing");
-  else if (typeof syncing === "string" && syncing)
-    flags.push(`sync:${syncing}`);
   const sessionId = entry?.sessionId as unknown;
   if (typeof sessionId === "string" && sessionId.length > 0)
     flags.push(`id:${sessionId}`);
diff --git a/src/config/sessions.ts b/src/config/sessions.ts
index f5d64601b..54afc10d5 100644
--- a/src/config/sessions.ts
+++ b/src/config/sessions.ts
@@ -25,8 +25,6 @@ export type SessionEntry = {
   contextTokens?: number;
   lastChannel?: "whatsapp" | "telegram" | "webchat";
   lastTo?: string;
-  // Optional flag to mirror Mac app UI and future sync states.
-  syncing?: boolean | string;
   skillsSnapshot?: SessionSkillSnapshot;
 };
 
@@ -134,7 +132,6 @@ export async function updateLastRoute(params: {
     totalTokens: existing?.totalTokens,
     model: existing?.model,
     contextTokens: existing?.contextTokens,
-    syncing: existing?.syncing,
     skillsSnapshot: existing?.skillsSnapshot,
     lastChannel: channel,
     lastTo: to?.trim() ? to.trim() : undefined,
diff --git a/src/cron/isolated-agent.ts b/src/cron/isolated-agent.ts
index cf4762c6a..ec7f90236 100644
--- a/src/cron/isolated-agent.ts
+++ b/src/cron/isolated-agent.ts
@@ -133,7 +133,6 @@ function resolveCronSession(params: {
     contextTokens: entry?.contextTokens,
     lastChannel: entry?.lastChannel,
     lastTo: entry?.lastTo,
-    syncing: entry?.syncing,
   };
   return { storePath, store, sessionEntry, systemSent, isNewSession: !fresh };
 }
diff --git a/src/gateway/protocol/schema.ts b/src/gateway/protocol/schema.ts
index 72b4fa803..6445b4fc5 100644
--- a/src/gateway/protocol/schema.ts
+++ b/src/gateway/protocol/schema.ts
@@ -298,9 +298,6 @@ export const SessionsPatchParamsSchema = Type.Object(
         Type.Null(),
       ]),
     ),
-    syncing: Type.Optional(
-      Type.Union([Type.Boolean(), NonEmptyString, Type.Null()]),
-    ),
   },
   { additionalProperties: false },
 );
diff --git a/src/gateway/server.test.ts b/src/gateway/server.test.ts
index e54f3557e..3b732d656 100644
--- a/src/gateway/server.test.ts
+++ b/src/gateway/server.test.ts
@@ -3506,20 +3506,6 @@ describe("gateway server", () => {
     expect(main2?.thinkingLevel).toBe("medium");
     expect(main2?.verboseLevel).toBeUndefined();
 
-    const syncPatched = await rpcReq<{ ok: true; key: string }>(
-      ws,
-      "sessions.patch",
-      { key: "main", syncing: true },
-    );
-    expect(syncPatched.ok).toBe(true);
-
-    const list3 = await rpcReq<{
-      sessions: Array<{ key: string; syncing?: boolean | string }>;
-    }>(ws, "sessions.list", {});
-    expect(list3.ok).toBe(true);
-    const main3 = list3.payload?.sessions.find((s) => s.key === "main");
-    expect(main3?.syncing).toBe(true);
-
     const compacted = await rpcReq<{ ok: true; compacted: boolean }>(
       ws,
       "sessions.compact",
diff --git a/src/gateway/server.ts b/src/gateway/server.ts
index c23624a3d..6b4a1f7e6 100644
--- a/src/gateway/server.ts
+++ b/src/gateway/server.ts
@@ -364,7 +364,6 @@ type GatewaySessionRow = {
   totalTokens?: number;
   model?: string;
   contextTokens?: number;
-  syncing?: boolean | string;
 };
 
 type SessionsListResult = {
@@ -843,7 +842,6 @@ function listSessionsFromStore(params: {
         totalTokens: total,
         model: entry?.model,
         contextTokens: entry?.contextTokens,
-        syncing: entry?.syncing,
       } satisfies GatewaySessionRow;
     })
     .sort((a, b) => (b.updatedAt ?? 0) - (a.updatedAt ?? 0));
@@ -2014,15 +2012,6 @@ export async function startGatewayServer(
             }
           }
 
-          if ("syncing" in p) {
-            const raw = p.syncing;
-            if (raw === null) {
-              delete next.syncing;
-            } else if (raw !== undefined) {
-              next.syncing = raw as boolean | string;
-            }
-          }
-
           store[key] = next;
           await saveSessionStore(storePath, store);
           const payload: SessionsPatchResult = {
@@ -2066,7 +2055,6 @@ export async function startGatewayServer(
             abortedLastRun: false,
             thinkingLevel: entry?.thinkingLevel,
             verboseLevel: entry?.verboseLevel,
-            syncing: entry?.syncing,
             model: entry?.model,
             contextTokens: entry?.contextTokens,
             lastChannel: entry?.lastChannel,
@@ -4321,15 +4309,6 @@ export async function startGatewayServer(
                 }
               }
 
-              if ("syncing" in p) {
-                const raw = p.syncing;
-                if (raw === null) {
-                  delete next.syncing;
-                } else if (raw !== undefined) {
-                  next.syncing = raw as boolean | string;
-                }
-              }
-
               store[key] = next;
               await saveSessionStore(storePath, store);
               const result: SessionsPatchResult = {
@@ -4374,7 +4353,6 @@ export async function startGatewayServer(
                 abortedLastRun: false,
                 thinkingLevel: entry?.thinkingLevel,
                 verboseLevel: entry?.verboseLevel,
-                syncing: entry?.syncing,
                 model: entry?.model,
                 contextTokens: entry?.contextTokens,
                 lastChannel: entry?.lastChannel,
diff --git a/ui/src/ui/types.ts b/ui/src/ui/types.ts
index 52adfe050..5e45bef62 100644
--- a/ui/src/ui/types.ts
+++ b/ui/src/ui/types.ts
@@ -111,7 +111,6 @@ export type GatewaySessionRow = {
   totalTokens?: number;
   model?: string;
   contextTokens?: number;
-  syncing?: boolean | string;
 };
 
 export type SessionsListResult = {
@@ -131,7 +130,6 @@ export type SessionsPatchResult = {
     updatedAt?: number;
     thinkingLevel?: string;
     verboseLevel?: string;
-    syncing?: boolean | string;
   };
 };
 
@@ -248,4 +246,3 @@ export type SkillStatusReport = {
 export type StatusSummary = Record<string, unknown>;
 
 export type HealthSnapshot = Record<string, unknown>;
-