diff --git a/aider/coders/base_coder.py b/aider/coders/base_coder.py
index 5658cb913..3d11c2e84 100755
--- a/aider/coders/base_coder.py
+++ b/aider/coders/base_coder.py
@@ -11,6 +11,7 @@ from json.decoder import JSONDecodeError
 from pathlib import Path
 
 import git
+import litellm
 import openai
 from jsonschema import Draft7Validator
 from rich.console import Console, Text
@@ -28,6 +29,8 @@ from aider.utils import is_image_file
 
 from ..dump import dump  # noqa: F401
 
+litellm.suppress_debug_info = True
+
 
 class MissingAPIKeyError(ValueError):
     pass
@@ -597,6 +600,9 @@ class Coder:
             interrupted = True
         except ExhaustedContextWindow:
             exhausted = True
+        except litellm.exceptions.BadRequestError as err:
+            self.io.tool_error(f"BadRequestError: {err}")
+            return
         except openai.BadRequestError as err:
             if "maximum context length" in str(err):
                 exhausted = True
diff --git a/aider/coders/editblock_prompts.py b/aider/coders/editblock_prompts.py
index 05e358a6c..58ee25294 100644
--- a/aider/coders/editblock_prompts.py
+++ b/aider/coders/editblock_prompts.py
@@ -67,6 +67,7 @@ mathweb/flask/app.py
     return str(math.factorial(n))
 >>>>>>> REPLACE
 {fence[1]}
+<<<<<<< HEAD
 """,
         ),
         dict(
diff --git a/aider/coders/udiff_prompts.py b/aider/coders/udiff_prompts.py
index abff70413..ab659c262 100644
--- a/aider/coders/udiff_prompts.py
+++ b/aider/coders/udiff_prompts.py
@@ -115,7 +115,7 @@ You always COMPLETELY IMPLEMENT the needed code!
 
     files_no_full_files = "I am not sharing any *read-write* files yet."
 
-    repo_content_prefix = """Below here are summaries of other files present in this git repository.
+    repo_content_prefix = """Below here are summaries of some files present in this git repository.
 Do not propose changes to these files, they are *read-only*.
 To make a file *read-write*, ask the user to *add it to the chat*.
 """
diff --git a/aider/commands.py b/aider/commands.py
index 40581b0f9..3b6f359d5 100644
--- a/aider/commands.py
+++ b/aider/commands.py
@@ -349,10 +349,12 @@ class Commands:
                 self.io.tool_error(f"Skipping {fname} that matches aiderignore spec.")
                 continue
 
-            if fname.exists() and fname.is_file():
-                all_matched_files.add(str(fname))
-                continue
-                # an existing dir will fall through and get recursed by glob
+            if fname.exists():
+                if fname.is_file():
+                    all_matched_files.add(str(fname))
+                    continue
+                # an existing dir, escape any special chars so they won't be globs
+                word = re.sub(r"([\*\?\[\]])", r"[\1]", word)
 
             matched_files = self.glob_filtered_to_repo(word)
             if matched_files:
diff --git a/aider/sendchat.py b/aider/sendchat.py
index 2cbbfd2d9..6c613d072 100644
--- a/aider/sendchat.py
+++ b/aider/sendchat.py
@@ -25,7 +25,7 @@ litellm.suppress_debug_info = True
         RateLimitError,
         APIConnectionError,
         httpx.ConnectError,
-        litellm.exceptions.BadRequestError,
+        litellm.exceptions.ServiceUnavailableError,
     ),
     max_tries=10,
     on_backoff=lambda details: print(
@@ -50,6 +50,8 @@ def send_with_retries(model_name, messages, functions, stream):
     if not stream and CACHE is not None and key in CACHE:
         return hash_object, CACHE[key]
 
+    # del kwargs['stream']
+
     res = litellm.completion(**kwargs)
 
     if not stream and CACHE is not None:
diff --git a/tests/test_commands.py b/tests/test_commands.py
index 1751a359d..8cc67b6d8 100644
--- a/tests/test_commands.py
+++ b/tests/test_commands.py
@@ -386,6 +386,23 @@ class TestCommands(TestCase):
 
             self.assertIn(str(fname.resolve()), coder.abs_fnames)
 
+    def test_cmd_add_dirname_with_special_chars(self):
+        with ChdirTemporaryDirectory():
+            io = InputOutput(pretty=False, yes=False)
+            from aider.coders import Coder
+
+            coder = Coder.create(self.GPT35, None, io)
+            commands = Commands(io, coder)
+
+            dname = Path("with[brackets]")
+            dname.mkdir()
+            fname = dname / "filename.txt"
+            fname.touch()
+
+            commands.cmd_add(str(dname))
+
+            self.assertIn(str(fname.resolve()), coder.abs_fnames)
+
     def test_cmd_add_abs_filename(self):
         with ChdirTemporaryDirectory():
             io = InputOutput(pretty=False, yes=False)