1 files changed, 12 insertions, 1 deletions
diff --git a/src/config/message.rs b/src/config/message.rs
index 514a2fa..3fd5935 100644
--- a/src/config/message.rs
+++ b/src/config/message.rs
@@ -1,6 +1,9 @@
+use crate::utils::count_tokens;
+
+use anyhow::{bail, Result};
 use serde::{Deserialize, Serialize};
 
-use crate::utils::count_tokens;
+pub const MAX_TOKENS: usize = 4096;
 
 #[derive(Debug, Clone, Deserialize, Serialize)]
 pub struct Message {
@@ -25,6 +28,14 @@ pub enum MessageRole {
     User,
 }
 
+pub fn within_max_tokens_limit(messages: &[Message]) -> Result<()> {
+    let tokens = num_tokens_from_messages(messages);
+    if tokens >= MAX_TOKENS {
+        bail!("Exceed max tokens limit")
+    }
+    Ok(())
+}
+
 pub fn num_tokens_from_messages(messages: &[Message]) -> usize {
     let mut num_tokens = 0;
     for message in messages.iter() {