Capture errors in ollama responses

Author: radare

src/repl/llm.go

@@ -585,11 +585,15 @@ func (p *OllamaProvider) SendMessage(ctx context.Context, messages []Message, st
 		Message struct {
 			Content string `json:"content""`
 		} `json:"message""`
+		Error string `json:"error,omitempty""`
 	}
 
 	if err := json.Unmarshal(respBody, &response); err != nil {
 		return "", err
 	}
+	if response.Error != "" {
+		return "", fmt.Errorf(response.Error)
+	}
 
 	// Return raw content - newline conversion happens in the REPL
 	return response.Message.Content, nil

src/repl/tools.go

@@ -173,7 +173,7 @@ func mapToArray(m map[string]interface{}) []string {
 // extractJSONBlock locates the first balanced JSON object in text (or fenced JSON)
 // and returns it plus any remaining tail text.
 func extractJSONBlock(text string) (string, string) {
-	if !strings.Contains(text, "\"plan\"") {
+	if !strings.Contains(text, "\"plan\":") {
 		return "", text
 	}
 	// Attempt fenced JSON block: ```json ... ```