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+
+<b>Pattern 1: Always wrap API calls and potentially error-prone operations with try-except blocks to ensure proper error handling and prevent application crashes.</b>
+
+Example code before:
+```
+response = client.messages.count_tokens(
+    model="claude-3-7-sonnet-20250219",
+    system="system",
+    messages=[{
+        "role": "user",
+        "content": patch
+    }],
+)
+return response.input_tokens
+```
+
+Example code after:
+```
+try:
+    response = client.messages.count_tokens(
+        model="claude-3-7-sonnet-20250219",
+        system="system",
+        messages=[{
+            "role": "user",
+            "content": patch
+        }],
+    )
+    return response.input_tokens
+except Exception as api_error:
+    get_logger().error(f"Error in API call: {api_error}")
+    return fallback_value
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1644#discussion_r2068039198
+- https://github.com/qodo-ai/pr-agent/pull/1644#discussion_r2013912636
+- https://github.com/qodo-ai/pr-agent/pull/1263#discussion_r1782129216
+</details>
+
+
+___
+
+<b>Pattern 2: Replace print statements with proper logging using get_logger() to ensure consistent error tracking and monitoring across the application.</b>
+
+Example code before:
+```
+print(f"Failed to fetch sub-issues. Error: {e}")
+```
+
+Example code after:
+```
+get_logger().error(f"Failed to fetch sub-issues", artifact={"error": e})
+```
+
+<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_r1964107962
+- https://github.com/qodo-ai/pr-agent/pull/1634#discussion_r2007976915
+</details>
+
+
+___
+
+<b>Pattern 3: Validate input parameters before processing to prevent runtime errors, especially when working with optional or user-provided data.</b>
+
+Example code before:
+```
+if not (comment_id or (file_path and line_number)):
+    return
+```
+
+Example code after:
+```
+# Return if any required parameter is missing
+if not all([comment_id, file_path, line_number]):
+    get_logger().info("Missing required parameters for conversation history")
+    return
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1687#discussion_r2036939244
+- https://github.com/qodo-ai/pr-agent/pull/1290#discussion_r1798939921
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r1958698147
+</details>
+
+
+___
+
+<b>Pattern 4: Use defensive programming when handling external API responses or data structures to account for unexpected formats or missing fields.</b>
+
+Example code before:
+```
+model = get_settings().config.model.lower()
+if force_accurate and 'claude' in model and get_settings(use_context=False).get('anthropic.key'):
+    return self.calc_claude_tokens(patch)
+```
+
+Example code after:
+```
+# Ensure model is a string and not None before operations
+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
+    
+if force_accurate and 'claude' in model.lower() and get_settings(use_context=False).get('anthropic.key'):
+    return self.calc_claude_tokens(patch)
+```
+
+<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/1391#discussion_r1879875489
+- https://github.com/qodo-ai/pr-agent/pull/1391#discussion_r1879875496
+</details>
+
+
+___
+
+<b>Pattern 5: Optimize code to reduce unnecessary API calls and improve performance, especially when working with external services or databases.</b>
+
+Example code before:
+```
+# Get the original comment to find its location
+comment = self.pr.get_comment(comment_id)
+if not comment:
+    return []
+    
+# Get all comments
+all_comments = list(self.pr.get_comments())
+```
+
+Example code after:
+```
+# Fetch all comments with a single API call
+all_comments = list(self.pr.get_comments())
+
+# Find the target comment by ID
+target_comment = next((c for c in all_comments if c.id == comment_id), None)
+if not target_comment:
+    return []
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1687#discussion_r2051644060
+- https://github.com/qodo-ai/pr-agent/pull/1555#discussion_r1963228113
+- https://github.com/qodo-ai/pr-agent/pull/1687#discussion_r2051640437
+</details>
+
+
+___
+
+<b>Pattern 6: Ensure proper error logging with context by using structured logging with artifacts parameter rather than string concatenation.</b>
+
+Example code before:
+```
+get_logger().error(f"Failed to get log context: {e}")
+```
+
+Example code after:
+```
+get_logger().error("Failed to get log context", artifact={"error": e})
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1634#discussion_r2007976915
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r1964110734
+- https://github.com/qodo-ai/pr-agent/pull/1529#discussion_r2055606721
+</details>
+
+
+___
+
+<b>Pattern 7: Add clear, descriptive comments for complex logic or non-obvious code to improve maintainability and help future developers understand the code's purpose.</b>
+
+Example code before:
+```
+if not isinstance(issue, dict):
+    continue
+```
+
+Example code after:
+```
+# Skip empty issues or non-dictionary items to ensure valid data structure
+if not isinstance(issue, dict):
+    continue
+```
+
+<details><summary>Examples for relevant past discussions:</summary>
+
+- https://github.com/qodo-ai/pr-agent/pull/1262#discussion_r1782097204
+- https://github.com/qodo-ai/pr-agent/pull/1583#discussion_r1971790979
+- https://github.com/qodo-ai/pr-agent/pull/1687#discussion_r2051641090
+</details>
+
+
+___