!squash waiter.md docs

Author: tony

docs/test-helpers/waiter.md

@@ -9,6 +9,8 @@ The waiter module provides utilities for waiting on specific content to appear i
 - **Composable Waiting**: Wait for any of multiple conditions or all conditions to be met
 - **Flexible Timeout Handling**: Configure timeout behavior and error handling to suit your needs
 - **Shell Prompt Detection**: Easily wait for shell readiness with built-in prompt detection
+- **Robust Error Handling**: Improved exception handling and result reporting
+- **Clean Code**: Well-formatted, linted code with proper type annotations
 
 ## Basic Concepts
 
@@ -52,12 +54,14 @@ Control how long to wait and what happens when a timeout occurs:
 
 ### Waiting for Shell Readiness
 
-A common use case is waiting for a shell prompt to appear, indicating the command has completed:
+A common use case is waiting for a shell prompt to appear, indicating the command has completed. The example below uses a regular expression to match common shell prompt characters (`$`, `%`, `>`, `#`):
 
 ```{literalinclude} ../../tests/examples/test/waiter/test_wait_until_ready.py
 :language: python
 ```
 
+> Note: This test is skipped in CI environments due to timing issues but works well for local development.
+
 ## Fluent API (Playwright-inspired)
 
 For a more expressive and chainable API, you can use the fluent interface provided by the `PaneContentWaiter` class:
@@ -153,3 +157,25 @@ These methods configure the waiter and return a new waiter with the updated conf
   * `elapsed_time`: The time elapsed during the wait
   * `error`: The error message, if any
   * `matched_pattern_index`: The index of the matched pattern (for wait_for_any_content)
+
+## Implementation Notes
+
+### Error Handling
+
+The waiting functions are designed to be robust and handle timing and error conditions gracefully:
+
+- All wait functions properly calculate elapsed time for performance tracking
+- Functions handle exceptions consistently and provide clear error messages
+- Proper handling of return values ensures consistent behavior whether or not raises=True
+
+### Type Safety
+
+The waiter module is fully type-annotated to ensure compatibility with static type checkers:
+
+- All functions include proper type hints for parameters and return values
+- The ContentMatchType enum ensures that only valid match types are used
+- Combined with runtime checks, this prevents type-related errors during testing
+
+### Example Usage in Documentation
+
+All examples in this documentation are actual test files from the libtmux test suite. The examples are included using `literalinclude` directives, ensuring that the documentation remains synchronized with the actual code.