fix: check context length exceeded phrases on lowercased response (#771)

crates/goose/src/providers/databricks.rs

@@ -163,15 +163,17 @@ impl DatabricksProvider {
             }
             StatusCode::BAD_REQUEST => {
                 // Databricks provides a generic 'error' but also includes 'external_model_message' which is provider specific
-                // we try our best to extract the error message from the payload
-                let payload_str = serde_json::to_string(&payload).unwrap_or_default();
-                if payload_str.contains("too long")
-                    || payload_str.contains("context length")
-                    || payload_str.contains("context_length_exceeded")
-                    || payload_str.contains("reduce the length")
-                    || payload_str.contains("token count")
-                    || payload_str.contains("exceeds")
-                {
+                // We try to extract the error message from the payload and check for phrases that indicate context length exceeded
+                let payload_str = serde_json::to_string(&payload).unwrap_or_default().to_lowercase();
+                let check_phrases = [
+                    "too long",
+                    "context length",
+                    "context_length_exceeded",
+                    "reduce the length",
+                    "token count",
+                    "exceeds",
+                ];
+                if check_phrases.iter().any(|c| payload_str.contains(c)) {
                     return Err(ProviderError::ContextLengthExceeded(payload_str));
                 }