From 39d71ffe02d9b9c1549e2f499cc373310f46e2c7 Mon Sep 17 00:00:00 2001
From: remote-agent <remote-agent@example.com>
Date: Wed, 4 Mar 2026 03:39:05 +0000
Subject: [PATCH] feat: Hello World Example

---
 .trae/specs/hello/checklist.md |  4 ++++
 .trae/specs/hello/spec.md      | 20 ++++++++++++++++++++
 .trae/specs/hello/tasks.md     |  8 ++++++++
 pycchess/hello.py              | 26 ++++++++++++++++++++++++++
 4 files changed, 58 insertions(+)
 create mode 100644 .trae/specs/hello/checklist.md
 create mode 100644 .trae/specs/hello/spec.md
 create mode 100644 .trae/specs/hello/tasks.md
 create mode 100644 pycchess/hello.py

diff --git a/.trae/specs/hello/checklist.md b/.trae/specs/hello/checklist.md
new file mode 100644
index 0000000..809dd3e
--- /dev/null
+++ b/.trae/specs/hello/checklist.md
@@ -0,0 +1,4 @@
+# Checklist
+- [x] Hello function exists and is accessible
+- [x] Hello function returns a friendly greeting message
+- [x] Error handling is implemented for edge cases
diff --git a/.trae/specs/hello/spec.md b/.trae/specs/hello/spec.md
new file mode 100644
index 0000000..cae7f7b
--- /dev/null
+++ b/.trae/specs/hello/spec.md
@@ -0,0 +1,20 @@
+# Hello Feature Spec
+
+## Why
+Provide a simple greeting mechanism to demonstrate basic functionality and establish a foundation for user interaction features.
+
+## What Changes
+- Add a hello greeting endpoint/function
+- Implement basic response handling
+
+## Impact
+- Affected specs: User interaction, greeting system
+- Affected code: New greeting module
+
+## ADDED Requirements
+### Requirement: Hello Greeting
+The system SHALL provide a hello greeting function that returns a friendly greeting message.
+
+#### Scenario: Success case
+- **WHEN** user requests a hello greeting
+- **THEN** system returns a friendly greeting message
diff --git a/.trae/specs/hello/tasks.md b/.trae/specs/hello/tasks.md
new file mode 100644
index 0000000..7c72665
--- /dev/null
+++ b/.trae/specs/hello/tasks.md
@@ -0,0 +1,8 @@
+# Tasks
+- [x] Task 1: Create hello greeting function
+  - [x] SubTask 1.1: Create hello module/file
+  - [x] SubTask 1.2: Implement hello function that returns greeting message
+  - [x] SubTask 1.3: Add basic error handling
+
+# Task Dependencies
+- No dependencies between tasks
diff --git a/pycchess/hello.py b/pycchess/hello.py
new file mode 100644
index 0000000..b85b7d2
--- /dev/null
+++ b/pycchess/hello.py
@@ -0,0 +1,26 @@
+#! /usr/bin/env python
+# -*- coding: utf-8 -*-
+
+def hello(name=None):
+    """
+    Returns a friendly greeting message.
+    
+    Args:
+        name: Optional name to personalize the greeting
+        
+    Returns:
+        A greeting string
+        
+    Raises:
+        ValueError: If name is empty string
+    """
+    if name is None:
+        return "Hello! Welcome to pycchess."
+    
+    if not isinstance(name, str):
+        raise ValueError("Name must be a string")
+    
+    if name.strip() == "":
+        raise ValueError("Name cannot be empty")
+    
+    return "Hello, {}! Welcome to pycchess.".format(name.strip())