diff --git a/config.json b/config.json
index 84df243..0f78f6f 100644
--- a/config.json
+++ b/config.json
@@ -16,7 +16,10 @@
   "agents": {
     "default": {
       "provider": "default",
-      "model": "default"
+      "model": "default",
+      "tool_result_max_chars": 20000,
+      "context_summary_max_chars": 20000,
+      "context_tool_result_trim_chars": 2000
     }
   },
   "gateway": {
diff --git a/src/agent/context_compressor.rs b/src/agent/context_compressor.rs
index e0adb7f..77f6757 100644
--- a/src/agent/context_compressor.rs
+++ b/src/agent/context_compressor.rs
@@ -36,7 +36,7 @@ impl Default for ContextCompressionConfig {
             protect_last_n: 4,
             max_passes: 3,
             summary_max_chars: 20_000,
-            tool_result_trim_chars: 20_000,
+            tool_result_trim_chars: 2_000,
         }
     }
 }
@@ -395,6 +395,12 @@ mod tests {
         assert!(messages[0].content.is_char_boundary(messages[0].content.len()));
     }
 
+    #[test]
+    fn test_default_tool_result_trim_chars() {
+        let config = ContextCompressionConfig::default();
+        assert_eq!(config.tool_result_trim_chars, 2_000);
+    }
+
     #[test]
     fn test_threshold() {
         let compressor = ContextCompressor::new(128_000);
diff --git a/src/config/mod.rs b/src/config/mod.rs
index f5612a7..fec8ca5 100644
--- a/src/config/mod.rs
+++ b/src/config/mod.rs
@@ -189,7 +189,7 @@ fn default_context_summary_max_chars() -> usize {
 }
 
 fn default_context_tool_result_trim_chars() -> usize {
-    20_000
+    2_000
 }
 
 fn default_llm_timeout_secs() -> u64 {
@@ -733,7 +733,7 @@ mod tests {
         assert_eq!(provider_config.llm_timeout_secs, 120);
         assert_eq!(provider_config.tool_result_max_chars, 20_000);
         assert_eq!(provider_config.context_summary_max_chars, 20_000);
-        assert_eq!(provider_config.context_tool_result_trim_chars, 20_000);
+        assert_eq!(provider_config.context_tool_result_trim_chars, 2_000);
     }
 
     #[test]
@@ -958,7 +958,7 @@ mod tests {
         assert_eq!(config.agents["default"].max_tool_iterations, 100);
         assert_eq!(config.agents["default"].tool_result_max_chars, 20_000);
         assert_eq!(config.agents["default"].context_summary_max_chars, 20_000);
-        assert_eq!(config.agents["default"].context_tool_result_trim_chars, 20_000);
+        assert_eq!(config.agents["default"].context_tool_result_trim_chars, 2_000);
     }
 
     #[test]