diff --git a/backend/app/channels/runtime_config_store.py b/backend/app/channels/runtime_config_store.py
new file mode 100644
index 000000000..6305806cc
--- /dev/null
+++ b/backend/app/channels/runtime_config_store.py
@@ -0,0 +1,129 @@
+"""Local persistence for runtime IM channel configuration."""
+
+from __future__ import annotations
+
+import json
+import logging
+import tempfile
+import threading
+from pathlib import Path
+from typing import Any
+
+logger = logging.getLogger(__name__)
+
+
+class ChannelRuntimeConfigStore:
+    """JSON-backed store for channel credentials entered from the UI.
+
+    This intentionally mirrors ``ChannelStore``: local/private deployments get
+    durable runtime configuration without needing a public callback URL or a
+    config.yaml edit.
+    """
+
+    def __init__(self, path: str | Path | None = None) -> None:
+        if path is None:
+            from deerflow.config.paths import get_paths
+
+            path = Path(get_paths().base_dir) / "channels" / "runtime-config.json"
+        self._path = Path(path)
+        self._path.parent.mkdir(parents=True, exist_ok=True)
+        self._data: dict[str, dict[str, Any]] = self._load()
+        self._lock = threading.Lock()
+
+    def _load(self) -> dict[str, dict[str, Any]]:
+        if self._path.exists():
+            try:
+                raw = json.loads(self._path.read_text(encoding="utf-8"))
+            except (json.JSONDecodeError, OSError):
+                logger.warning("Corrupt channel runtime config store at %s, starting fresh", self._path)
+                return {}
+            if isinstance(raw, dict):
+                return {str(name): dict(value) for name, value in raw.items() if isinstance(value, dict)}
+        return {}
+
+    def _save(self) -> None:
+        fd = tempfile.NamedTemporaryFile(
+            mode="w",
+            dir=self._path.parent,
+            suffix=".tmp",
+            delete=False,
+        )
+        try:
+            json.dump(self._data, fd, indent=2, ensure_ascii=False)
+            fd.close()
+            Path(fd.name).replace(self._path)
+            try:
+                self._path.chmod(0o600)
+            except OSError:
+                logger.debug("Unable to chmod channel runtime config store at %s", self._path, exc_info=True)
+        except BaseException:
+            fd.close()
+            Path(fd.name).unlink(missing_ok=True)
+            raise
+
+    def load_all(self) -> dict[str, dict[str, Any]]:
+        with self._lock:
+            return {name: dict(config) for name, config in self._data.items()}
+
+    def get_provider_config(self, provider: str) -> dict[str, Any] | None:
+        with self._lock:
+            config = self._data.get(provider)
+            return dict(config) if isinstance(config, dict) else None
+
+    def set_provider_config(self, provider: str, config: dict[str, Any]) -> None:
+        with self._lock:
+            self._data[provider] = dict(config)
+            self._save()
+
+
+def _provider_enabled(channel_connections_config: Any, provider: str) -> bool:
+    provider_config = getattr(channel_connections_config, provider, None)
+    return bool(getattr(provider_config, "enabled", False))
+
+
+def merge_runtime_channel_configs(
+    channels_config: dict[str, Any],
+    channel_connections_config: Any,
+    *,
+    store: ChannelRuntimeConfigStore | None = None,
+) -> None:
+    """Merge persisted runtime provider config into ``channels_config`` in-place."""
+    if channel_connections_config is None or not getattr(channel_connections_config, "enabled", False):
+        return
+
+    runtime_store = store or ChannelRuntimeConfigStore()
+    for provider, runtime_config in runtime_store.load_all().items():
+        if not _provider_enabled(channel_connections_config, provider):
+            continue
+        existing = channels_config.get(provider)
+        merged = dict(runtime_config)
+        if isinstance(existing, dict):
+            merged.update(existing)
+        channels_config[provider] = merged
+
+
+def apply_runtime_connection_config(
+    channel_connections_config: Any,
+    *,
+    store: ChannelRuntimeConfigStore | None = None,
+) -> Any:
+    """Apply persisted connection metadata that lives outside ``channels``.
+
+    Telegram uses a bot username for deep links; UI-entered values are stored
+    with the runtime channel config so local restarts keep the provider
+    configured.
+    """
+    if channel_connections_config is None or not getattr(channel_connections_config, "enabled", False):
+        return channel_connections_config
+
+    runtime_store = store or ChannelRuntimeConfigStore()
+    telegram_runtime_config = runtime_store.get_provider_config("telegram")
+    bot_username = ""
+    if isinstance(telegram_runtime_config, dict):
+        bot_username = str(telegram_runtime_config.get("bot_username") or "").strip()
+    if not bot_username or not _provider_enabled(channel_connections_config, "telegram"):
+        return channel_connections_config
+
+    config = channel_connections_config.model_copy(deep=True)
+    config.telegram.bot_username = bot_username
+    return config
diff --git a/backend/app/channels/service.py b/backend/app/channels/service.py
index 1261f8096..c742ced5b 100644
--- a/backend/app/channels/service.py
+++ b/backend/app/channels/service.py
@@ -9,6 +9,7 @@ from typing import TYPE_CHECKING, Any
 from app.channels.base import Channel
 from app.channels.manager import DEFAULT_GATEWAY_URL, DEFAULT_LANGGRAPH_URL, ChannelManager
 from app.channels.message_bus import MessageBus
+from app.channels.runtime_config_store import merge_runtime_channel_configs
 from app.channels.store import ChannelStore
 
 logger = logging.getLogger(__name__)
@@ -54,8 +55,7 @@ def _resolve_service_url(config: dict[str, Any], config_key: str, env_key: str,
 
 def _merge_channel_connection_runtime_config(channels_config: dict[str, Any], app_config: AppConfig) -> None:
     connection_config = getattr(app_config, "channel_connections", None)
-    if connection_config is None or not getattr(connection_config, "enabled", False):
-        return
+    merge_runtime_channel_configs(channels_config, connection_config)
 
 
 def _make_connection_repo(app_config: AppConfig):
diff --git a/backend/app/gateway/routers/channel_connections.py b/backend/app/gateway/routers/channel_connections.py
index c4f45be5e..2ed9aaa1f 100644
--- a/backend/app/gateway/routers/channel_connections.py
+++ b/backend/app/gateway/routers/channel_connections.py
@@ -10,6 +10,11 @@ from typing import Any
 from fastapi import APIRouter, HTTPException, Request, Response
 from pydantic import BaseModel, Field
 
+from app.channels.runtime_config_store import (
+    ChannelRuntimeConfigStore,
+    apply_runtime_connection_config,
+    merge_runtime_channel_configs,
+)
 from deerflow.config.channel_connections_config import ChannelConnectionsConfig
 from deerflow.persistence.channel_connections import ChannelConnectionRepository
 from deerflow.persistence.engine import get_session_factory
@@ -132,11 +137,22 @@ def _get_app_config():
     return get_app_config()
 
 
+def _get_runtime_config_store(request: Request) -> ChannelRuntimeConfigStore:
+    store = getattr(request.app.state, "channel_runtime_config_store", None)
+    if isinstance(store, ChannelRuntimeConfigStore):
+        return store
+    store = ChannelRuntimeConfigStore()
+    request.app.state.channel_runtime_config_store = store
+    return store
+
+
 def _get_channel_connections_config(request: Request) -> ChannelConnectionsConfig:
     config = getattr(request.app.state, "channel_connections_config", None)
-    if isinstance(config, ChannelConnectionsConfig):
-        return config
-    return _get_app_config().channel_connections
+    if not isinstance(config, ChannelConnectionsConfig):
+        config = _get_app_config().channel_connections
+    config = apply_runtime_connection_config(config, store=_get_runtime_config_store(request))
+    request.app.state.channel_connections_config = config
+    return config
 
 
 def _get_channels_config(request: Request) -> dict[str, Any]:
@@ -147,7 +163,14 @@ def _get_channels_config(request: Request) -> dict[str, Any]:
     app_config = _get_app_config()
     extra = app_config.model_extra or {}
     channels_config = extra.get("channels")
-    return dict(channels_config) if isinstance(channels_config, dict) else {}
+    result = dict(channels_config) if isinstance(channels_config, dict) else {}
+    merge_runtime_channel_configs(
+        result,
+        _get_channel_connections_config(request),
+        store=_get_runtime_config_store(request),
+    )
+    request.app.state.channels_config = result
+    return result
 
 
 def _get_repository(request: Request, config: ChannelConnectionsConfig) -> ChannelConnectionRepository:
@@ -436,6 +459,7 @@ async def configure_channel_provider_runtime(
         runtime_config[key] = values[key]
 
     if provider == "telegram":
+        runtime_config["bot_username"] = values["bot_username"]
         provider_config.bot_username = values["bot_username"]
         request.app.state.channel_connections_config = config
 
@@ -447,4 +471,6 @@ async def configure_channel_provider_runtime(
         display_name = _PROVIDER_META[provider]["display_name"]
         raise HTTPException(status_code=400, detail=f"Failed to start {display_name} channel. Check the values and try again.")
 
+    _get_runtime_config_store(request).set_provider_config(provider, runtime_config)
+
     return _provider_response(config, channels_config, provider, _PROVIDER_META[provider])
diff --git a/backend/tests/test_channel_connections_router.py b/backend/tests/test_channel_connections_router.py
index 108af262e..239169d06 100644
--- a/backend/tests/test_channel_connections_router.py
+++ b/backend/tests/test_channel_connections_router.py
@@ -7,6 +7,7 @@ from uuid import UUID
 from _router_auth_helpers import make_authed_test_app
 from fastapi.testclient import TestClient
 
+from app.channels.runtime_config_store import ChannelRuntimeConfigStore
 from app.gateway.auth.models import User
 from app.gateway.routers import channel_connections
 from deerflow.config.channel_connections_config import ChannelConnectionsConfig
@@ -29,11 +30,21 @@ async def _make_repo(tmp_path):
     return ChannelConnectionRepository(get_session_factory())
 
 
-def _make_app(config: ChannelConnectionsConfig, repo, channels_config: dict | None = None):
+def _make_app(
+    config: ChannelConnectionsConfig,
+    repo,
+    channels_config: dict | None = None,
+    *,
+    runtime_config_store: ChannelRuntimeConfigStore | None = None,
+    set_channels_config_state: bool = True,
+):
     app = make_authed_test_app(user_factory=_user)
     app.state.channel_connections_config = config
     app.state.channel_connection_repo = repo
-    app.state.channels_config = channels_config or {}
+    if set_channels_config_state:
+        app.state.channels_config = channels_config or {}
+    if runtime_config_store is not None:
+        app.state.channel_runtime_config_store = runtime_config_store
     app.include_router(channel_connections.router)
     return app
 
@@ -398,6 +409,56 @@ def test_configure_provider_runtime_credentials_enables_connect_without_file_edi
     anyio.run(repo.close)
 
 
+def test_configure_provider_runtime_credentials_survive_local_restart(tmp_path):
+    import anyio
+
+    repo = anyio.run(_make_repo, tmp_path)
+    config = ChannelConnectionsConfig.model_validate(
+        {
+            "enabled": True,
+            "slack": {"enabled": True},
+        }
+    )
+    runtime_config_path = tmp_path / "channels" / "runtime-config.json"
+    first_app = _make_app(
+        config,
+        repo,
+        {},
+        runtime_config_store=ChannelRuntimeConfigStore(runtime_config_path),
+    )
+
+    with TestClient(first_app) as client:
+        configure_response = client.post(
+            "/api/channels/slack/runtime-config",
+            json={"values": {"bot_token": "xoxb-ui", "app_token": "xapp-ui"}},
+        )
+
+    assert configure_response.status_code == 200
+
+    restarted_app = _make_app(
+        config,
+        repo,
+        runtime_config_store=ChannelRuntimeConfigStore(runtime_config_path),
+        set_channels_config_state=False,
+    )
+
+    with TestClient(restarted_app) as client:
+        response = client.get("/api/channels/providers")
+
+    assert response.status_code == 200
+    by_provider = {item["provider"]: item for item in response.json()["providers"]}
+    assert by_provider["slack"]["configured"] is True
+    assert by_provider["slack"]["connectable"] is True
+    assert by_provider["slack"]["connection_status"] == "connected"
+    assert restarted_app.state.channels_config["slack"] == {
+        "enabled": True,
+        "bot_token": "xoxb-ui",
+        "app_token": "xapp-ui",
+    }
+
+    anyio.run(repo.close)
+
+
 def test_disconnect_connection_revokes_current_user_connection(tmp_path):
     import anyio
 
diff --git a/backend/tests/test_channels.py b/backend/tests/test_channels.py
index 8d00de577..07e3aa8be 100644
--- a/backend/tests/test_channels.py
+++ b/backend/tests/test_channels.py
@@ -3287,10 +3287,17 @@ class TestChannelService:
 
         assert service._config == {"telegram": {"enabled": False}}
 
-    def test_from_app_config_does_not_create_runtime_channels_from_channel_connections(self):
+    def test_from_app_config_does_not_create_runtime_channels_from_channel_connections(
+        self,
+        monkeypatch,
+        tmp_path,
+    ):
         from app.channels.service import ChannelService
+        from deerflow.config import paths as paths_module
         from deerflow.config.channel_connections_config import ChannelConnectionsConfig
 
+        monkeypatch.setenv("DEER_FLOW_HOME", str(tmp_path))
+        monkeypatch.setattr(paths_module, "_paths", None)
         app_config = SimpleNamespace(
             model_extra={},
             channel_connections=ChannelConnectionsConfig.model_validate(
@@ -3307,10 +3314,26 @@ class TestChannelService:
 
         assert service._config == {}
 
-    def test_from_app_config_preserves_existing_runtime_channels_with_channel_connections_enabled(self):
+    def test_from_app_config_preserves_existing_runtime_channels_with_channel_connections_enabled(
+        self,
+        monkeypatch,
+        tmp_path,
+    ):
+        from app.channels.runtime_config_store import ChannelRuntimeConfigStore
         from app.channels.service import ChannelService
+        from deerflow.config import paths as paths_module
         from deerflow.config.channel_connections_config import ChannelConnectionsConfig
 
+        monkeypatch.setenv("DEER_FLOW_HOME", str(tmp_path))
+        monkeypatch.setattr(paths_module, "_paths", None)
+        ChannelRuntimeConfigStore().set_provider_config(
+            "slack",
+            {
+                "enabled": True,
+                "bot_token": "xoxb-ui",
+                "app_token": "xapp-ui",
+            },
+        )
         app_config = SimpleNamespace(
             model_extra={
                 "channels": {
@@ -3335,6 +3358,40 @@ class TestChannelService:
         assert service._config["slack"]["app_token"] == "xapp"
         assert service._config["discord"]["bot_token"] == "discord-bot-token"
 
+    def test_from_app_config_loads_persisted_runtime_channel_config(self, monkeypatch, tmp_path):
+        from app.channels.runtime_config_store import ChannelRuntimeConfigStore
+        from app.channels.service import ChannelService
+        from deerflow.config import paths as paths_module
+        from deerflow.config.channel_connections_config import ChannelConnectionsConfig
+
+        monkeypatch.setenv("DEER_FLOW_HOME", str(tmp_path))
+        monkeypatch.setattr(paths_module, "_paths", None)
+        ChannelRuntimeConfigStore().set_provider_config(
+            "slack",
+            {
+                "enabled": True,
+                "bot_token": "xoxb-ui",
+                "app_token": "xapp-ui",
+            },
+        )
+        app_config = SimpleNamespace(
+            model_extra={},
+            channel_connections=ChannelConnectionsConfig.model_validate(
+                {
+                    "enabled": True,
+                    "slack": {"enabled": True},
+                }
+            ),
+        )
+
+        service = ChannelService.from_app_config(app_config)
+
+        assert service._config["slack"] == {
+            "enabled": True,
+            "bot_token": "xoxb-ui",
+            "app_token": "xapp-ui",
+        }
+
     def test_connection_repo_is_forwarded_to_manager(self):
         from app.channels.service import ChannelService
 
diff --git a/frontend/src/core/threads/hooks.ts b/frontend/src/core/threads/hooks.ts
index 2ac1a1814..b8f6ceee5 100644
--- a/frontend/src/core/threads/hooks.ts
+++ b/frontend/src/core/threads/hooks.ts
@@ -1,5 +1,4 @@
 import type { AIMessage, Message, Run } from "@langchain/langgraph-sdk";
-import type { ThreadsClient } from "@langchain/langgraph-sdk/client";
 import { useStream } from "@langchain/langgraph-sdk/react";
 import {
   type QueryClient,
@@ -24,6 +23,11 @@ import type { UploadedFileInfo } from "../uploads";
 import { promptInputFilePartToFile, uploadFiles } from "../uploads";
 
 import { fetchThreadTokenUsage } from "./api";
+import {
+  buildThreadsSearchQueryOptions,
+  DEFAULT_THREAD_SEARCH_PARAMS,
+  type ThreadSearchParams,
+} from "./thread-search-query";
 import { threadTokenUsageQueryKey } from "./token-usage";
 import type {
   AgentThread,
@@ -1034,69 +1038,11 @@ export function useThreadHistory(
 }
 
 export function useThreads(
-  params: Parameters<ThreadsClient["search"]>[0] = {
-    limit: 50,
-    sortBy: "updated_at",
-    sortOrder: "desc",
-    select: ["thread_id", "updated_at", "values", "metadata"],
-  },
+  params: ThreadSearchParams = DEFAULT_THREAD_SEARCH_PARAMS,
 ) {
   const apiClient = getAPIClient();
   return useQuery<AgentThread[]>({
-    queryKey: ["threads", "search", params],
-    queryFn: async () => {
-      const maxResults = params.limit;
-      const initialOffset = params.offset ?? 0;
-      const DEFAULT_PAGE_SIZE = 50;
-
-      // Preserve prior semantics: if a non-positive limit is explicitly provided,
-      // delegate to a single search call with the original parameters.
-      if (maxResults !== undefined && maxResults <= 0) {
-        const response =
-          await apiClient.threads.search<AgentThreadState>(params);
-        return response as AgentThread[];
-      }
-
-      const pageSize =
-        typeof maxResults === "number" && maxResults > 0
-          ? Math.min(DEFAULT_PAGE_SIZE, maxResults)
-          : DEFAULT_PAGE_SIZE;
-
-      const threads: AgentThread[] = [];
-      let offset = initialOffset;
-
-      while (true) {
-        if (typeof maxResults === "number" && threads.length >= maxResults) {
-          break;
-        }
-
-        const currentLimit =
-          typeof maxResults === "number"
-            ? Math.min(pageSize, maxResults - threads.length)
-            : pageSize;
-
-        if (typeof maxResults === "number" && currentLimit <= 0) {
-          break;
-        }
-
-        const response = (await apiClient.threads.search<AgentThreadState>({
-          ...params,
-          limit: currentLimit,
-          offset,
-        })) as AgentThread[];
-
-        threads.push(...response);
-
-        if (response.length < currentLimit) {
-          break;
-        }
-
-        offset += response.length;
-      }
-
-      return threads;
-    },
-    refetchOnWindowFocus: false,
+    ...buildThreadsSearchQueryOptions(apiClient, params),
   });
 }
 
diff --git a/frontend/src/core/threads/thread-search-query.ts b/frontend/src/core/threads/thread-search-query.ts
new file mode 100644
index 000000000..758df283f
--- /dev/null
+++ b/frontend/src/core/threads/thread-search-query.ts
@@ -0,0 +1,84 @@
+import type { ThreadsClient } from "@langchain/langgraph-sdk/client";
+
+import type { AgentThread, AgentThreadState } from "./types";
+
+type ThreadsSearchClient = {
+  threads: {
+    search: ThreadsClient["search"];
+  };
+};
+
+export type ThreadSearchParams = NonNullable<Parameters<ThreadsClient["search"]>[0]>;
+
+export const DEFAULT_THREAD_SEARCH_PARAMS: ThreadSearchParams = {
+  limit: 50,
+  sortBy: "updated_at",
+  sortOrder: "desc",
+  select: ["thread_id", "updated_at", "values", "metadata"],
+};
+
+export const THREAD_SEARCH_REFETCH_INTERVAL_MS = 5000;
+
+export function buildThreadsSearchQueryOptions(
+  apiClient: ThreadsSearchClient,
+  params: ThreadSearchParams = DEFAULT_THREAD_SEARCH_PARAMS,
+) {
+  return {
+    queryKey: ["threads", "search", params],
+    queryFn: async () => {
+      const maxResults = params.limit;
+      const initialOffset = params.offset ?? 0;
+      const DEFAULT_PAGE_SIZE = 50;
+
+      // Preserve prior semantics: if a non-positive limit is explicitly provided,
+      // delegate to a single search call with the original parameters.
+      if (maxResults !== undefined && maxResults <= 0) {
+        const response =
+          await apiClient.threads.search<AgentThreadState>(params);
+        return response as AgentThread[];
+      }
+
+      const pageSize =
+        typeof maxResults === "number" && maxResults > 0
+          ? Math.min(DEFAULT_PAGE_SIZE, maxResults)
+          : DEFAULT_PAGE_SIZE;
+
+      const threads: AgentThread[] = [];
+      let offset = initialOffset;
+
+      while (true) {
+        if (typeof maxResults === "number" && threads.length >= maxResults) {
+          break;
+        }
+
+        const currentLimit =
+          typeof maxResults === "number"
+            ? Math.min(pageSize, maxResults - threads.length)
+            : pageSize;
+
+        if (typeof maxResults === "number" && currentLimit <= 0) {
+          break;
+        }
+
+        const response = (await apiClient.threads.search<AgentThreadState>({
+          ...params,
+          limit: currentLimit,
+          offset,
+        })) as AgentThread[];
+
+        threads.push(...response);
+
+        if (response.length < currentLimit) {
+          break;
+        }
+
+        offset += response.length;
+      }
+
+      return threads;
+    },
+    refetchInterval: THREAD_SEARCH_REFETCH_INTERVAL_MS,
+    refetchIntervalInBackground: false,
+    refetchOnWindowFocus: false,
+  };
+}
diff --git a/frontend/tests/unit/core/threads/thread-search-query.test.ts b/frontend/tests/unit/core/threads/thread-search-query.test.ts
new file mode 100644
index 000000000..34a008035
--- /dev/null
+++ b/frontend/tests/unit/core/threads/thread-search-query.test.ts
@@ -0,0 +1,19 @@
+import { expect, test, vi } from "vitest";
+
+import {
+  buildThreadsSearchQueryOptions,
+  DEFAULT_THREAD_SEARCH_PARAMS,
+  THREAD_SEARCH_REFETCH_INTERVAL_MS,
+} from "@/core/threads/thread-search-query";
+
+test("thread search query refreshes so IM-created sessions appear in the sidebar", () => {
+  const search = vi.fn();
+  const options = buildThreadsSearchQueryOptions(
+    { threads: { search } },
+    DEFAULT_THREAD_SEARCH_PARAMS,
+  );
+
+  expect(options.refetchInterval).toBe(THREAD_SEARCH_REFETCH_INTERVAL_MS);
+  expect(options.refetchIntervalInBackground).toBe(false);
+  expect(options.refetchOnWindowFocus).toBe(false);
+});