diff --git a/codi-rs/src/agent/mod.rs b/codi-rs/src/agent/mod.rs
index f28a1ab..84fc0bb 100644
--- a/codi-rs/src/agent/mod.rs
+++ b/codi-rs/src/agent/mod.rs
@@ -326,7 +326,7 @@ impl Agent {
 
         // Notify callback
         if let Some(ref on_tool_result) = self.callbacks.on_tool_result {
-            on_tool_result(&tool_call.id, &result.content, result.is_error.unwrap_or(false));
+            on_tool_result(&tool_call.id, &tool_call.name, &result.content, result.is_error.unwrap_or(false));
         }
 
         result
diff --git a/codi-rs/src/agent/types.rs b/codi-rs/src/agent/types.rs
index 2989ed8..91a2e06 100644
--- a/codi-rs/src/agent/types.rs
+++ b/codi-rs/src/agent/types.rs
@@ -71,8 +71,8 @@ pub struct AgentCallbacks {
     pub on_text: Option<Arc<dyn Fn(&str) + Send + Sync>>,
     /// Called when a tool is about to be executed (tool_id, tool_name, input).
     pub on_tool_call: Option<Arc<dyn Fn(&str, &str, &serde_json::Value) + Send + Sync>>,
-    /// Called when a tool execution completes (tool_id, result, is_error).
-    pub on_tool_result: Option<Arc<dyn Fn(&str, &str, bool) + Send + Sync>>,
+    /// Called when a tool execution completes (tool_id, tool_name, result, is_error).
+    pub on_tool_result: Option<Arc<dyn Fn(&str, &str, &str, bool) + Send + Sync>>,
     /// Called to confirm destructive operations. Returns approval result.
     pub on_confirm: Option<Arc<dyn Fn(ToolConfirmation) -> ConfirmationResult + Send + Sync>>,
     /// Called when context compaction starts/ends.
diff --git a/codi-rs/src/tui/app.rs b/codi-rs/src/tui/app.rs
index 4109a54..a004cb4 100644
--- a/codi-rs/src/tui/app.rs
+++ b/codi-rs/src/tui/app.rs
@@ -356,7 +356,7 @@ impl App {
             })),
             on_tool_result: Some(Arc::new({
                 let tx = event_tx.clone();
-                move |tool_id: &str, result: &str, is_error: bool| {
+                move |tool_id: &str, _name: &str, result: &str, is_error: bool| {
                     let _ = tx.send(AppEvent::ToolResult(tool_id.to_string(), result.to_string(), is_error));
                 }
             })),
diff --git a/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_live_output.snap.new b/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_live_output.snap.new
new file mode 100644
index 0000000..871cdfa
--- /dev/null
+++ b/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_live_output.snap.new
@@ -0,0 +1,25 @@
+---
+source: tests/tui_exec_cell.rs
+assertion_line: 157
+expression: terminal.backend()
+---
+"┌ bash ────────────────────────────────────────────────────────────────────────┐"
+"│ ⠋ Running... (6ms)                                                           │"
+"│ Input: {"cmd":"long_running_command"}                                        │"
+"│ ┌──────────────────────────────────────────────────────────────────────────┐ │"
+"│ │ Starting process...                                                      │ │"
+"│ │ Loading configuration                                                    │ │"
+"│ │ Connecting to database                                                   │ │"
+"│ │ Executing query                                                          │ │"
+"│ │ Processing results                                                       │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ └──────────────────────────────────────────────────────────────────────────┘ │"
+"└──────────────────────────────────────────────────────────────────────────────┘"
diff --git a/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_pending.snap.new b/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_pending.snap.new
new file mode 100644
index 0000000..68ea5e4
--- /dev/null
+++ b/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_pending.snap.new
@@ -0,0 +1,25 @@
+---
+source: tests/tui_exec_cell.rs
+assertion_line: 30
+expression: terminal.backend()
+---
+"┌ read_file ───────────────────────────────────────────────────────────────────┐"
+"│ ○ Running... (9ms)                                                           │"
+"│ Input: {"path":"test.rs"}                                                    │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"│                                                                              │"
+"└──────────────────────────────────────────────────────────────────────────────┘"
diff --git a/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_running.snap.new b/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_running.snap.new
new file mode 100644
index 0000000..d63f2cf
--- /dev/null
+++ b/codi-rs/tests/snapshots/tui_exec_cell__exec_cell_running.snap.new
@@ -0,0 +1,25 @@
+---
+source: tests/tui_exec_cell.rs
+assertion_line: 51
+expression: terminal.backend()
+---
+"┌ bash ────────────────────────────────────────────────────────────────────────┐"
+"│ ⠋ Running... (5ms)                                                           │"
+"│ Input: {"cmd":"echo hello"}                                                  │"
+"│ ┌──────────────────────────────────────────────────────────────────────────┐ │"
+"│ │ Processing...                                                            │ │"
+"│ │ Step 1 complete                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ │                                                                          │ │"
+"│ └──────────────────────────────────────────────────────────────────────────┘ │"
+"└──────────────────────────────────────────────────────────────────────────────┘"