diff --git a/askChatGPT b/askChatGPT
old mode 100644
new mode 100755
index bc86ca8..96180da
--- a/askChatGPT
+++ b/askChatGPT
@@ -1,5 +1,4 @@
 #!/usr/bin/env bash
-
 # askChatGPT - A simple Bash client for OpenAI Chat API
 # Requires: curl, jq
 # Env var: OPENAI_API_KEY must be set
@@ -10,6 +9,7 @@ MODEL="gpt-4o-mini"
 PREPEND_TEXT=""
 CONTENT_FILE=""
 LIST_MODELS=0
+declare -a PROMPT_WORDS=()   # <-- important: initialize the array
 
 usage() {
     cat <<EOF
@@ -17,15 +17,10 @@ Usage: $0 [options] [prompt text]
 
 Options:
   -model <name>               Set the OpenAI model (default: $MODEL)
-  --list-models                List available models from OpenAI
-  -prepend <text>              Text to prepend before the main prompt
-  -content-from-file <file>    Read prompt content from file
-  -h, --help                   Show this help message
-
-Examples:
-  $0 "Write a haiku about Bash scripting"
-  $0 -model gpt-4o -prepend "Explain like I'm five:" "What is quantum physics?"
-  $0 -content-from-file notes.txt
+  --list-models               List available models from OpenAI
+  -prepend <text>             Text to prepend before the main prompt
+  -content-from-file <file>   Read prompt content from file
+  -h, --help                  Show this help message
 EOF
 }
 
@@ -33,32 +28,25 @@ EOF
 while [[ $# -gt 0 ]]; do
     case "$1" in
         -model)
-            MODEL="$2"
-            shift 2
-            ;;
+            MODEL="$2"; shift 2 ;;
         --list-models)
-            LIST_MODELS=1
-            shift
-            ;;
+            LIST_MODELS=1; shift ;;
         -prepend)
-            PREPEND_TEXT="$2"
-            shift 2
-            ;;
+            PREPEND_TEXT="$2"; shift 2 ;;
         -content-from-file)
-            CONTENT_FILE="$2"
-            shift 2
-            ;;
+            CONTENT_FILE="$2"; shift 2 ;;
         -h|--help)
-            usage
-            exit 0
-            ;;
+            usage; exit 0 ;;
         *)
-            PROMPT_WORDS+=("$1")
-            shift
-            ;;
+            PROMPT_WORDS+=("$1"); shift ;;
     esac
 done
 
+# Check deps
+for dep in curl jq; do
+  command -v "$dep" >/dev/null 2>&1 || { echo "Error: '$dep' is required."; exit 1; }
+done
+
 # Check API key
 if [[ -z "${OPENAI_API_KEY:-}" ]]; then
     echo "Error: OPENAI_API_KEY is not set."
@@ -74,23 +62,15 @@ if [[ "$LIST_MODELS" -eq 1 ]]; then
 fi
 
 # Build prompt
-PROMPT=""
-if [[ -n "$PREPEND_TEXT" ]]; then
-    PROMPT+="$PREPEND_TEXT "
-fi
-
+PROMPT_MAIN=""
 if [[ -n "$CONTENT_FILE" ]]; then
-    if [[ ! -f "$CONTENT_FILE" ]]; then
-        echo "Error: file '$CONTENT_FILE' not found."
-        exit 1
-    fi
-    PROMPT+="$(<"$CONTENT_FILE")"
-elif [[ ${#PROMPT_WORDS[@]:-0} -gt 0 ]]; then
-    PROMPT+="${PROMPT_WORDS[*]}"
+    [[ -f "$CONTENT_FILE" ]] || { echo "Error: file '$CONTENT_FILE' not found."; exit 1; }
+    PROMPT_MAIN="$(<"$CONTENT_FILE")"
+elif (( ${#PROMPT_WORDS[@]} > 0 )); then
+    PROMPT_MAIN="${PROMPT_WORDS[*]}"
 else
-    # Read from stdin if nothing else provided
     if ! [ -t 0 ]; then
-        PROMPT+="$(cat)"
+        PROMPT_MAIN="$(cat)"
     else
         echo "Error: No prompt provided."
         usage
@@ -98,19 +78,36 @@ else
     fi
 fi
 
+PROMPT_FULL=""
+if [[ -n "$PREPEND_TEXT" ]]; then
+    PROMPT_FULL+="$PREPEND_TEXT"$'\n\n'
+fi
+PROMPT_FULL+="$PROMPT_MAIN"
+
+# JSON-escape content safely
+JSON_CONTENT=$(printf '%s' "$PROMPT_FULL" | jq -Rs .)
+
 # Send request
 RESPONSE=$(curl -s https://api.openai.com/v1/chat/completions \
-    -H "Content-Type: application/json" \
-    -H "Authorization: Bearer $OPENAI_API_KEY" \
-    -d @- <<EOF
+  -H "Content-Type: application/json" \
+  -H "Authorization: Bearer $OPENAI_API_KEY" \
+  -d "$(cat <<EOF
 {
   "model": "$MODEL",
   "messages": [
-    {"role": "user", "content": "$PROMPT"}
+    {"role": "user", "content": $JSON_CONTENT}
   ]
 }
 EOF
-)
+)")
 
-# Extract and print answer
-echo "$RESPONSE" | jq -r '.choices[0].message.content // "Error: No content in response"'
\ No newline at end of file
+# Extract and print answer (or error)
+echo "$RESPONSE" | jq -r '
+  if .choices and .choices[0].message.content then
+    .choices[0].message.content
+  elif .error and .error.message then
+    "API Error: " + .error.message
+  else
+    "Error: No content in response"
+  end
+'