diff --git a/aider/coders/__init__.py b/aider/coders/__init__.py
index 2633961b1..55d46f4c1 100644
--- a/aider/coders/__init__.py
+++ b/aider/coders/__init__.py
@@ -1,23 +1,17 @@
 from .base_coder import Coder
 from .editblock_coder import EditBlockCoder
 from .editblock_fenced_coder import EditBlockFencedCoder
-from .editblock_func_coder import EditBlockFunctionCoder
 from .help_coder import HelpCoder
-from .single_wholefile_func_coder import SingleWholeFileFunctionCoder
 from .udiff_coder import UnifiedDiffCoder
 from .wholefile_coder import WholeFileCoder
-from .wholefile_func_coder import WholeFileFunctionCoder
 from .ask_coder import AskCoder
 
 __all__ = [
+    HelpCoder,
+    AskCoder,
     Coder,
     EditBlockCoder,
     EditBlockFencedCoder,
     WholeFileCoder,
-    WholeFileFunctionCoder,
-    EditBlockFunctionCoder,
-    SingleWholeFileFunctionCoder,
     UnifiedDiffCoder,
-    HelpCoder,
-    AskCoder,
 ]
diff --git a/aider/coders/ask_prompts.py b/aider/coders/ask_prompts.py
index 7978e925d..98565af0b 100644
--- a/aider/coders/ask_prompts.py
+++ b/aider/coders/ask_prompts.py
@@ -22,8 +22,9 @@ Other messages in the chat may contain outdated versions of the files' contents.
     files_no_full_files_with_repo_map = ""
     files_no_full_files_with_repo_map_reply = ""
 
-    repo_content_prefix = """Here are summaries of some files present in my git repository.
-If you need to see more of the contents of these files, ask me to *add them to the chat*.
+    repo_content_prefix = """I am working with you on code in a git repository.
+Here are summaries of some files present in my git repo.
+If you need to see the full contents of any files to answer my questions, ask me to *add them to the chat*.
 """
 
     system_reminder = ""
diff --git a/aider/commands.py b/aider/commands.py
index 52bffd20b..f0d42e4bc 100644
--- a/aider/commands.py
+++ b/aider/commands.py
@@ -2,6 +2,7 @@ import os
 import re
 import subprocess
 import sys
+from collections import OrderedDict
 from pathlib import Path
 
 import git
@@ -50,22 +51,45 @@ class Commands:
         from aider import coders
 
         ef = args.strip()
-        valid_formats = [
-            (coder.edit_format, coder.__doc__.strip().split('\n')[0] if coder.__doc__ else "No description")
-            for coder in coders.__all__ if getattr(coder, 'edit_format', None)
-        ]
+        valid_formats = OrderedDict(
+            sorted(
+                (
+                    coder.edit_format,
+                    coder.__doc__.strip().split("\n")[0] if coder.__doc__ else "No description",
+                )
+                for coder in coders.__all__
+                if getattr(coder, "edit_format", None)
+            )
+        )
 
-        if ef not in [format[0] for format in valid_formats]:
+        show_formats = OrderedDict(
+            [
+                ("help", "Get help about using aider (usage, config, troubleshoot)."),
+                ("ask", "Ask questions about your code without making any changes."),
+                ("code", "Ask for changes to your code (using the best edit format)."),
+            ]
+        )
+
+        if ef not in valid_formats and ef not in show_formats:
             if ef:
-                self.io.tool_error(f"Chat mode \"{ef}\" must be one of:\n")
+                self.io.tool_error(f'Chat mode "{ef}" should be one of these:\n')
             else:
-                self.io.tool_output(f"Chat mode must be one of:\n")
+                self.io.tool_output("Chat mode should be one of these:\n")
+
+            max_format_length = max(len(format) for format in valid_formats.keys())
+            for format, description in show_formats.items():
+                self.io.tool_output(f"- {format:<{max_format_length}} : {description}")
+
+            self.io.tool_output("\nOr a valid edit format:\n")
+            for format, description in valid_formats.items():
+                if format not in show_formats:
+                    self.io.tool_output(f"- {format:<{max_format_length}} : {description}")
 
-            max_format_length = max(len(format) for format, _ in valid_formats)
-            for format, description in valid_formats:
-                self.io.tool_output(f"- {format:<{max_format_length}} {description}")
             return
 
+        if ef == "code":
+            ef = self.coder.main_model.edit_format
+
         raise SwitchCoder(edit_format=ef)
 
     def completions_model(self):
@@ -124,13 +148,13 @@ class Commands:
             if not attr.startswith("cmd_"):
                 continue
             cmd = attr[4:]
-            cmd = cmd.replace('_', '-')
+            cmd = cmd.replace("_", "-")
             commands.append("/" + cmd)
 
         return commands
 
     def do_run(self, cmd_name, args):
-        cmd_name = cmd_name.replace('-', '_')
+        cmd_name = cmd_name.replace("-", "_")
         cmd_method_name = f"cmd_{cmd_name}"
         cmd_method = getattr(self, cmd_method_name, None)
         if cmd_method: