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+
+<b>Pattern 1: Wrap critical operations with try-except blocks to handle potential exceptions, especially for file operations, API calls, and data parsing functions.</b>
+
+Example code before:
+```
+def get_git_repo_url(self, issues_or_pr_url: str) -> str:
+    repo_path = self._get_owner_and_repo_path(issues_or_pr_url)
+    if not repo_path or repo_path not in issues_or_pr_url:
+        get_logger().error(f"Unable to retrieve owner/path from url: {issues_or_pr_url}")
+        return ""
+    return f"{issues_or_pr_url.split(repo_path)[0]}{repo_path}.git"
+```
+
+Example code after:
+```
+def get_git_repo_url(self, issues_or_pr_url: str) -> str:
+    try:
+        repo_path = self._get_owner_and_repo_path(issues_or_pr_url)
+        if not repo_path or repo_path not in issues_or_pr_url:
+            get_logger().error(f"Unable to retrieve owner/path from url: {issues_or_pr_url}")
+            return ""
+        return f"{issues_or_pr_url.split(repo_path)[0]}{repo_path}.git"
+    except Exception as e:
+        get_logger().error(f"Failed to get git repo url from {issues_or_pr_url}, error: {e}")
+        return ""
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1644#discussion_r2013912636
+- https://github.com/qodo-ai/pr-agent/pull/1263#discussion_r1782129216
+- https://github.com/qodo-ai/pr-agent/pull/1391#discussion_r1879870807
+</details>
+
+
+___
+
+<b>Pattern 2: Use proper logging methods instead of print statements, with get_logger().error() for errors, get_logger().warning() for warnings, and get_logger().info() for informational messages.</b>
+
+Example code before:
+```
+if isinstance(response_tuple, tuple) and len(response_tuple) == 3:
+    response_json = json.loads(response_tuple[2])
+else:
+    print("Unexpected response format:", response_tuple)
+    return sub_issues
+```
+
+Example code after:
+```
+if isinstance(response_tuple, tuple) and len(response_tuple) == 3:
+    response_json = json.loads(response_tuple[2])
+else:
+    get_logger().error(f"Unexpected response format", artifact={"response": response_tuple})
+    return sub_issues
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r1958684550
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r1958686068
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r1964110734
+- https://github.com/qodo-ai/pr-agent/pull/1634#discussion_r2007976915
+</details>
+
+
+___
+
+<b>Pattern 3: Move specific imports to where they are actually used rather than at the top of the file, especially for rarely used or heavy dependencies.</b>
+
+Example code before:
+```
+import os
+from azure.identity import ClientSecretCredential
+import litellm
+import openai
+import requests
+```
+
+Example code after:
+```
+import os
+import litellm
+import openai
+import requests
+
+# Later in the code where Azure AD is actually used:
+if get_settings().get("AZURE_AD.CLIENT_ID", None):
+    from azure.identity import ClientSecretCredential
+    # Azure AD specific code...
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1698#discussion_r2046221654
+</details>
+
+
+___
+
+<b>Pattern 4: Add defensive checks for potentially None or invalid values before performing operations on them, especially when working with external data or API responses.</b>
+
+Example code before:
+```
+model_is_from_o_series = re.match(r"^o[1-9](-mini|-preview)?$", model)
+if ('gpt' in get_settings().config.model.lower() or model_is_from_o_series) and get_settings().get('openai.key'):
+    return encoder_estimate
+```
+
+Example code after:
+```
+if model is None:
+    get_logger().warning("Model is None, cannot determine model type accurately")
+    return encoder_estimate
+
+if not isinstance(model, str):
+    get_logger().warning(f"Model is not a string type: {type(model)}")
+    return encoder_estimate
+    
+model_is_from_o_series = re.match(r"^o[1-9](-mini|-preview)?$", model)
+openai_key_exists = get_settings().get('openai.key') is not None
+
+if (('gpt' in model.lower() or model_is_from_o_series) and openai_key_exists):
+    return encoder_estimate
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1644#discussion_r2032621065
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r1958694146
+- https://github.com/qodo-ai/pr-agent/pull/1391#discussion_r1879875496
+</details>
+
+
+___
+
+<b>Pattern 5: Avoid redundant code initialization and reuse existing objects or instances when possible, especially for resource-intensive operations.</b>
+
+Example code before:
+```
+if tickets:
+    provider = GithubProvider()
+    
+    for ticket in tickets:
+        # Extract sub-issues
+        sub_issues_content = []
+        try:
+            sub_issues = provider.fetch_sub_issues(ticket)
+```
+
+Example code after:
+```
+if tickets:
+    for ticket in tickets:
+        # Extract sub-issues
+        sub_issues_content = []
+        try:
+            sub_issues = git_provider.fetch_sub_issues(ticket)
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r1964085987
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r1964088304
+</details>
+
+
+___
+
+<b>Pattern 6: Use descriptive variable names and add explanatory comments for complex logic or non-obvious code to improve maintainability and readability.</b>
+
+Example code before:
+```
+issues = value
+for i, issue in enumerate(issues):
+    try:
+        if not issue or not isinstance(issue, dict):
+            continue
+```
+
+Example code after:
+```
+focus_areas = value
+for i, focus_area in enumerate(focus_areas):
+    try:
+        # Skip empty issues or non-dictionary items to ensure valid data structure
+        if not focus_area or not isinstance(focus_area, dict):
+            continue
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1262#discussion_r1782097201
+- https://github.com/qodo-ai/pr-agent/pull/1262#discussion_r1782097204
+- https://github.com/qodo-ai/pr-agent/pull/1583#discussion_r1971790979
+</details>
+
+
+___