Enhance tool docstrings for LLM discoverability

- Add cross-references between related tools
- Explain use cases and when to use alternatives
- All 25 MCP tools now have descriptive docstrings

tests/test_server.py

@@ -2,7 +2,7 @@
 
 import pytest
 
-from mctelnet.server import _connections, mcp
+from mctelnet.server import _connections, _servers, _strip_ansi, mcp
 
 
 def test_mcp_server_exists():
@@ -10,15 +10,16 @@ def test_mcp_server_exists():
     assert mcp.name == "mctelnet"
 
 
-def test_tools_registered():
-    """Verify all expected tools are registered."""
-    # Access tools through the tool manager's internal storage
+def test_client_tools_registered():
+    """Verify all expected client tools are registered."""
     tool_manager = mcp._tool_manager
     tool_names = set(tool_manager._tools.keys())
 
     expected_tools = {
         "connect",
         "send",
+        "send_key",
+        "list_keys",
         "read",
         "expect",
         "expect_send",
@@ -26,6 +27,29 @@ def test_tools_registered():
         "list_connections",
         "disconnect",
         "disconnect_all",
+        "connection_info",
+        "get_transcript",
+    }
+
+    assert expected_tools.issubset(tool_names), f"Missing tools: {expected_tools - tool_names}"
+
+
+def test_server_tools_registered():
+    """Verify all expected server tools are registered."""
+    tool_manager = mcp._tool_manager
+    tool_names = set(tool_manager._tools.keys())
+
+    expected_tools = {
+        "start_server",
+        "stop_server",
+        "list_servers",
+        "server_info",
+        "list_clients",
+        "read_client",
+        "send_client",
+        "broadcast",
+        "disconnect_client",
+        "get_server_transcript",
     }
 
     assert expected_tools.issubset(tool_names), f"Missing tools: {expected_tools - tool_names}"
@@ -33,6 +57,50 @@ def test_tools_registered():
 
 def test_connection_storage_initially_empty():
     """Verify no connections exist at startup."""
-    # Clear any lingering connections
     _connections.clear()
     assert len(_connections) == 0
+
+
+def test_server_storage_initially_empty():
+    """Verify no servers exist at startup."""
+    _servers.clear()
+    assert len(_servers) == 0
+
+
+class TestAnsiStripping:
+    """Tests for ANSI escape sequence stripping."""
+
+    def test_strip_simple_color(self):
+        """Strip basic color codes."""
+        text = "\x1b[32mgreen\x1b[0m text"
+        assert _strip_ansi(text) == "green text"
+
+    def test_strip_complex_sgr(self):
+        """Strip multi-parameter SGR sequences."""
+        text = "\x1b[1;31;40mBold red on black\x1b[0m"
+        assert _strip_ansi(text) == "Bold red on black"
+
+    def test_strip_cursor_movement(self):
+        """Strip cursor movement sequences."""
+        text = "\x1b[2J\x1b[H\x1b[5;10HHello"
+        assert _strip_ansi(text) == "Hello"
+
+    def test_strip_osc_title(self):
+        """Strip OSC window title sequences (BEL terminated)."""
+        text = "\x1b]0;Window Title\x07Some text"
+        assert _strip_ansi(text) == "Some text"
+
+    def test_strip_osc_st_terminated(self):
+        """Strip OSC sequences terminated with ST."""
+        text = "\x1b]0;Title\x1b\\Some text"
+        assert _strip_ansi(text) == "Some text"
+
+    def test_preserve_plain_text(self):
+        """Plain text passes through unchanged."""
+        text = "Hello, World! 123"
+        assert _strip_ansi(text) == text
+
+    def test_mixed_content(self):
+        """Handle mixed plain text and ANSI codes."""
+        text = "Start \x1b[1mBold\x1b[0m middle \x1b[4mUnderline\x1b[0m end"
+        assert _strip_ansi(text) == "Start Bold middle Underline end"