diff --git a/codex-rs/Cargo.lock b/codex-rs/Cargo.lock
index 4961486e65..81a8fc931b 100644
--- a/codex-rs/Cargo.lock
+++ b/codex-rs/Cargo.lock
@@ -1460,6 +1460,7 @@ dependencies = [
  "lazy_static",
  "libc",
  "mcp-types",
+ "once_cell",
  "opentelemetry-appender-tracing",
  "pathdiff",
  "pretty_assertions",
diff --git a/codex-rs/tui/Cargo.toml b/codex-rs/tui/Cargo.toml
index c56aba0fcf..d69c4e626f 100644
--- a/codex-rs/tui/Cargo.toml
+++ b/codex-rs/tui/Cargo.toml
@@ -71,6 +71,7 @@ strum_macros = { workspace = true }
 supports-color = { workspace = true }
 tempfile = { workspace = true }
 textwrap = { workspace = true }
+once_cell = "1"
 tree-sitter-highlight = { workspace = true }
 tree-sitter-bash = { workspace = true }
 tokio = { workspace = true, features = [
diff --git a/codex-rs/tui/src/bottom_pane/chat_composer.rs b/codex-rs/tui/src/bottom_pane/chat_composer.rs
index 8691b5b127..4c6564dd7f 100644
--- a/codex-rs/tui/src/bottom_pane/chat_composer.rs
+++ b/codex-rs/tui/src/bottom_pane/chat_composer.rs
@@ -36,7 +36,7 @@ use crate::bottom_pane::prompt_args::prompt_argument_names;
 use crate::bottom_pane::prompt_args::prompt_command_with_arg_placeholders;
 use crate::bottom_pane::prompt_args::prompt_has_numeric_placeholders;
 use crate::slash_command::SlashCommand;
-use crate::slash_command::built_in_slash_commands;
+use crate::slash_command::resolve_slash_command;
 use crate::style::user_message_style;
 use codex_protocol::custom_prompts::CustomPrompt;
 use codex_protocol::custom_prompts::PROMPTS_CMD_PREFIX;
@@ -932,9 +932,7 @@ impl ChatComposer {
                 let first_line = self.textarea.text().lines().next().unwrap_or("");
                 if let Some((name, rest)) = parse_slash_name(first_line)
                     && rest.is_empty()
-                    && let Some((_n, cmd)) = built_in_slash_commands()
-                        .into_iter()
-                        .find(|(n, _)| *n == name)
+                    && let Some(cmd) = resolve_slash_command(name)
                 {
                     self.textarea.set_text("");
                     return (InputResult::Command(cmd), true);
@@ -1003,9 +1001,7 @@ impl ChatComposer {
                 if let Some((name, _rest)) = parse_slash_name(&text) {
                     let treat_as_plain_text = input_starts_with_space || name.contains('/');
                     if !treat_as_plain_text {
-                        let is_builtin = built_in_slash_commands()
-                            .into_iter()
-                            .any(|(command_name, _)| command_name == name);
+                        let is_builtin = resolve_slash_command(name).is_some();
                         let prompt_prefix = format!("{PROMPTS_CMD_PREFIX}:");
                         let is_known_prompt = name
                             .strip_prefix(&prompt_prefix)
diff --git a/codex-rs/tui/src/bottom_pane/command_popup.rs b/codex-rs/tui/src/bottom_pane/command_popup.rs
index d7501cebbc..d780e33f7d 100644
--- a/codex-rs/tui/src/bottom_pane/command_popup.rs
+++ b/codex-rs/tui/src/bottom_pane/command_popup.rs
@@ -34,7 +34,12 @@ impl CommandPopup {
     pub(crate) fn new(mut prompts: Vec<CustomPrompt>) -> Self {
         let builtins = built_in_slash_commands();
         // Exclude prompts that collide with builtin command names and sort by name.
-        let exclude: HashSet<String> = builtins.iter().map(|(n, _)| (*n).to_string()).collect();
+        let mut exclude: HashSet<String> = builtins.iter().map(|(n, _)| (*n).to_string()).collect();
+        for (_, cmd) in &builtins {
+            for alias in cmd.aliases() {
+                exclude.insert((*alias).to_string());
+            }
+        }
         prompts.retain(|p| !exclude.contains(&p.name));
         prompts.sort_by(|a, b| a.name.cmp(&b.name));
         Self {
@@ -46,11 +51,16 @@ impl CommandPopup {
     }
 
     pub(crate) fn set_prompts(&mut self, mut prompts: Vec<CustomPrompt>) {
-        let exclude: HashSet<String> = self
+        let mut exclude: HashSet<String> = self
             .builtins
             .iter()
             .map(|(n, _)| (*n).to_string())
             .collect();
+        for (_, cmd) in &self.builtins {
+            for alias in cmd.aliases() {
+                exclude.insert((*alias).to_string());
+            }
+        }
         prompts.retain(|p| !exclude.contains(&p.name));
         prompts.sort_by(|a, b| a.name.cmp(&b.name));
         self.prompts = prompts;
@@ -121,6 +131,18 @@ impl CommandPopup {
         for (_, cmd) in self.builtins.iter() {
             if let Some((indices, score)) = fuzzy_match(cmd.command(), filter) {
                 out.push((CommandItem::Builtin(*cmd), Some(indices), score));
+                continue;
+            }
+            let mut best_alias_score: Option<i32> = None;
+            for alias in cmd.aliases() {
+                if let Some((_indices, score)) = fuzzy_match(alias, filter)
+                    && best_alias_score.is_none_or(|best| score < best)
+                {
+                    best_alias_score = Some(score);
+                }
+            }
+            if let Some(score) = best_alias_score {
+                out.push((CommandItem::Builtin(*cmd), None, score));
             }
         }
         // Support both search styles:
diff --git a/codex-rs/tui/src/slash_command.rs b/codex-rs/tui/src/slash_command.rs
index 969d279b07..485a8a47d7 100644
--- a/codex-rs/tui/src/slash_command.rs
+++ b/codex-rs/tui/src/slash_command.rs
@@ -24,6 +24,7 @@ pub enum SlashCommand {
     Status,
     Mcp,
     Logout,
+    #[strum(serialize = "exit")]
     Quit,
     Exit,
     Feedback,
@@ -83,6 +84,22 @@ impl SlashCommand {
         }
     }
 
+    /// Additional slash names that map to this command.
+    pub fn aliases(self) -> &'static [&'static str] {
+        match self {
+            SlashCommand::Quit => &["exit", "e"],
+            _ => &[],
+        }
+    }
+
+    /// Return true if `name` matches this command's canonical name or an alias.
+    pub fn matches_name(self, name: &str) -> bool {
+        if self.command() == name {
+            return true;
+        }
+        self.aliases().contains(&name)
+    }
+
     fn is_visible(self) -> bool {
         match self {
             SlashCommand::Rollout | SlashCommand::TestApproval => cfg!(debug_assertions),
@@ -98,3 +115,9 @@ pub fn built_in_slash_commands() -> Vec<(&'static str, SlashCommand)> {
         .map(|c| (c.command(), c))
         .collect()
 }
+
+/// Resolve a slash command name (including aliases) to the corresponding command.
+pub fn resolve_slash_command(name: &str) -> Option<SlashCommand> {
+    use std::str::FromStr;
+    SlashCommand::from_str(name).ok()
+}