codetether-agent 4.0.0

A2A-native AI coding agent for the CodeTether ecosystem
Documentation 
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--- src/cognition/thinker.rs
+++ src/cognition/thinker.rs
@@ -581,11 +581,21 @@
             self.top_p.map(|v| v as f64),
         );
 
-        let mut index_pos = 0usize;
+        let mut match_len = 0;
+        for (c, t) in self.cached_tokens.iter().zip(tokens.iter()) {
+            if c == t {
+                match_len += 1;
+            } else {
+                break;
+            }
+        }
+        if match_len == tokens.len() && match_len > 0 {
+            match_len -= 1;
+        }
+        let mut index_pos = match_len;
         let mut generated: Vec<u32> = Vec::with_capacity(self.max_tokens);
         let mut finish_reason = "length".to_string();
 
         for _ in 0..self.max_tokens {
-            let ctxt: &[u32] = if index_pos == 0 {
-                tokens.as_slice()
+            let ctxt: &[u32] = if index_pos == match_len && match_len < tokens.len() {
+                &tokens[match_len..]
             } else {
                 &tokens[tokens.len() - 1..]
@@ -624,6 +634,7 @@
             }
         }
 
+        self.cached_tokens = tokens.clone();
         let duration = started_at.elapsed();
         let tokens_per_sec = if duration.as_secs_f64() > 0.0 {
             (generated.len() as f64) / duration.as_secs_f64()