diff --git a/plugins/platforms/telegram/adapter.py b/plugins/platforms/telegram/adapter.py
index ea6258b9f2dc..32be4d2bb306 100644
--- a/plugins/platforms/telegram/adapter.py
+++ b/plugins/platforms/telegram/adapter.py
@@ -2161,7 +2161,9 @@ def _record_polling_progress(self, generation: int) -> None:
             return
         self._polling_progress_event.set()
         self._polling_network_error_count = 0
-        if generation == self._polling_conflict_recovery_generation:
+        # Bare/test adapters may not have run ``__init__``; treat missing as
+        # "no conflict recovery in flight" (same defensive shape as teardown).
+        if generation == getattr(self, "_polling_conflict_recovery_generation", None):
             self._polling_conflict_recovery_generation = None
         else:
             self._polling_conflict_count = 0
diff --git a/tests/tools/test_discord_tool.py b/tests/tools/test_discord_tool.py
index 8de83382abe2..15c7e9ce1166 100644
--- a/tests/tools/test_discord_tool.py
+++ b/tests/tools/test_discord_tool.py
@@ -249,6 +249,15 @@ def test_search_members_limit_capped(self, mock_req, monkeypatch):
         call_params = mock_req.call_args[1]["params"]
         assert call_params["limit"] == "100"  # Capped at 100
 
+    @patch("tools.discord_tool._discord_request")
+    def test_search_members_limit_floored(self, mock_req, monkeypatch):
+        monkeypatch.setenv("DISCORD_BOT_TOKEN", "test-token")
+        mock_req.return_value = []
+        discord_core(action="search_members", guild_id="111", query="x", limit=-5)
+        assert mock_req.call_args[1]["params"]["limit"] == "1"
+        discord_core(action="search_members", guild_id="111", query="x", limit=0)
+        assert mock_req.call_args[1]["params"]["limit"] == "1"
+
 
 # ---------------------------------------------------------------------------
 # Action: fetch_messages
@@ -274,6 +283,17 @@ def test_fetch_messages(self, mock_req, monkeypatch):
         assert result["messages"][0]["content"] == "Hello world"
         assert result["messages"][0]["author"]["username"] == "user1"
 
+    @patch("tools.discord_tool._discord_request")
+    def test_fetch_messages_limit_clamped(self, mock_req, monkeypatch):
+        monkeypatch.setenv("DISCORD_BOT_TOKEN", "test-token")
+        mock_req.return_value = []
+        discord_core(action="fetch_messages", channel_id="11", limit=500)
+        assert mock_req.call_args[1]["params"]["limit"] == "100"
+        discord_core(action="fetch_messages", channel_id="11", limit=-3)
+        assert mock_req.call_args[1]["params"]["limit"] == "1"
+        discord_core(action="fetch_messages", channel_id="11", limit=0)
+        assert mock_req.call_args[1]["params"]["limit"] == "1"
+
 
 # ---------------------------------------------------------------------------
 # Action: create_thread
diff --git a/tools/discord_tool.py b/tools/discord_tool.py
index db979a21d87d..df5c9d236c1f 100644
--- a/tools/discord_tool.py
+++ b/tools/discord_tool.py
@@ -491,7 +491,10 @@ def _search_members(token: str, guild_id: str, query: str, limit: int = 20, **_k
         limit = int(limit)
     except (TypeError, ValueError):
         limit = 20
-    params = {"query": query, "limit": str(min(limit, 100))}
+    # Discord members/search requires limit in [1, 100]. Upper-only min()
+    # still forwards 0/negatives which the API rejects with 400.
+    limit = max(1, min(limit, 100))
+    params = {"query": query, "limit": str(limit)}
     members = _discord_request("GET", f"/guilds/{guild_id}/members/search", token, params=params)
     result = []
     for m in members:
@@ -517,7 +520,9 @@ def _fetch_messages(
         limit = int(limit)
     except (TypeError, ValueError):
         limit = 50
-    params: Dict[str, str] = {"limit": str(min(limit, 100))}
+    # Discord channel message list requires limit in [1, 100].
+    limit = max(1, min(limit, 100))
+    params: Dict[str, str] = {"limit": str(limit)}
     if before:
         params["before"] = before
     if after: