Use Tcode consistently as the product display name

CONTRIBUTING.md

@@ -1,6 +1,6 @@
-# Contributing to tcode
+# Contributing to Tcode
 
-Thanks for taking the time. tcode is a small project — bug reports, UI polish and
+Thanks for taking the time. Tcode is a small project — bug reports, UI polish and
 new provider work are all welcome.
 
 By participating you agree to the [Code of Conduct](CODE_OF_CONDUCT.md).
@@ -85,7 +85,7 @@ cargo run -p agent --example probe -- claude \
     "What color is this image? Reply with just the color." /tmp/smoke --image /tmp/blue.png
 ```
 
-`TCODE_DATA_DIR` points tcode at a throwaway profile (its own sessions, settings
+`TCODE_DATA_DIR` points Tcode at a throwaway profile (its own sessions, settings
 and installed ACP agents) — useful for demos, screenshots and trying a change
 without touching your real threads.
 

README.md

@@ -88,7 +88,7 @@ speaks ACP.
 > ACP entries that duplicate a native integration are deliberately hidden from
 > the marketplace so each CLI has one clear, highest-fidelity path.
 
-## Use tcode from other devices
+## Use Tcode from other devices
 
 Tcode runs on the machine that holds your projects, starts your agents, and
 keeps your threads. You can open that machine from another desktop, a phone or
@@ -125,7 +125,7 @@ choose it under **Nearby machines**, then connect. In a browser, open the
 printed HTTP link and log in with the password. The browser’s **Settings →
 Other devices** shows codes and QR codes for native clients and controls new
 pairings and device revocation.
-See [Use tcode from other devices](docs/remote.md) for the native-app and
+See [Use Tcode from other devices](docs/remote.md) for the native-app and
 browser steps.
 
 **Security.** LAN connections use plain HTTP and WebSockets. Adding a machine

crates/agent/src/acp.rs

@@ -654,7 +654,7 @@ async fn handshake(
                             )
                             .client_info(
                                 acp::Implementation::new("tcode", env!("CARGO_PKG_VERSION"))
-                                    .title("tcode"),
+                                    .title("Tcode"),
                             ),
                     )
                     .block_task()
@@ -692,12 +692,12 @@ async fn handshake(
     let mcp_servers = mcp_servers(&registrations, &caps);
     if !registrations.is_empty() && mcp_servers.is_empty() {
         log::info!(
-            "acp[{}]: no mcpCapabilities.http; tcode MCP servers are not registered",
+            "acp[{}]: no mcpCapabilities.http; Tcode MCP servers are not registered",
             agent.id
         );
         let _ = events
             .send(AgentEvent::Warning { message: format!(
-                "{} does not support HTTP MCP servers; tcode MCP tools are unavailable in this session",
+                "{} does not support HTTP MCP servers; Tcode MCP tools are unavailable in this session",
                 agent.name
             ) })
             .await;

crates/agent/src/codex.rs

@@ -120,7 +120,7 @@ async fn initialize(
             "id": 1,
             "method": "initialize",
             "params": {
-                "clientInfo": { "name": "tcode", "title": "tcode", "version": env!("CARGO_PKG_VERSION") },
+                "clientInfo": { "name": "tcode", "title": "Tcode", "version": env!("CARGO_PKG_VERSION") },
                 "capabilities": { "experimentalApi": true }
             }
         }),

crates/agent/src/opencode.rs

@@ -379,7 +379,7 @@ impl SessionActor for OpenCodeActor {
             SessionCommand::Rewind { .. } => {
                 self.events
                     .emit(AgentEvent::Warning {
-                        message: "OpenCode rewind is not exposed by tcode's native adapter".into(),
+                        message: "OpenCode rewind is not exposed by Tcode's native adapter".into(),
                     })
                     .await;
                 Ok(())
@@ -478,7 +478,7 @@ impl OpenCodeActor {
         for request_id in pending {
             let _ = self.server.http.post_json(
                 &format!("/permission/{request_id}/reply"),
-                &json!({"reply":"reject","message":"tcode session closed"}),
+                &json!({"reply":"reject","message":"Tcode session closed"}),
             );
         }
         self.server.stop();
@@ -1709,12 +1709,12 @@ fn opencode_config_content(
         Some(inline) => {
             let config: Value = serde_json::from_str(&inline).map_err(|err| {
                 AgentError::Protocol(format!(
-                    "cannot merge tcode MCP servers into OPENCODE_CONFIG_CONTENT: {err}"
+                    "cannot merge Tcode MCP servers into OPENCODE_CONFIG_CONTENT: {err}"
                 ))
             })?;
             if !config.is_object() {
                 return Err(AgentError::Protocol(
-                    "cannot merge tcode MCP servers into non-object OPENCODE_CONFIG_CONTENT".into(),
+                    "cannot merge Tcode MCP servers into non-object OPENCODE_CONFIG_CONTENT".into(),
                 ));
             }
             config

crates/agent/src/pi.rs

@@ -330,7 +330,7 @@ async fn run_actor(
         actor.events
             .emit(AgentEvent::Warning {
                 message: format!(
-                    "pi has no MCP client of its own, so tcode's {} tools are unavailable in this session",
+                    "pi has no MCP client of its own, so Tcode's {} tools are unavailable in this session",
                     unattached.join(", ")
                 ),
             })
@@ -501,7 +501,7 @@ impl SessionActor for PiActor {
             SessionCommand::Rewind { .. } => {
                 self.events
                     .emit(AgentEvent::Warning {
-                        message: "pi rewind is not exposed by tcode's native adapter".into(),
+                        message: "pi rewind is not exposed by Tcode's native adapter".into(),
                     })
                     .await;
                 Ok(())

crates/android/host/app/src/main/AndroidManifest.xml

@@ -12,7 +12,7 @@
         android:enableOnBackInvokedCallback="false"
         android:hasCode="true"
         android:icon="@mipmap/ic_launcher"
-        android:label="tcode"
+        android:label="Tcode"
         android:supportsRtl="true"
         android:theme="@style/Theme.Tcode"
         android:usesCleartextTraffic="true">

crates/app/src/main.rs

@@ -408,10 +408,9 @@ fn main() {
                 });
             }
             #[cfg(target_os = "macos")]
-            cx.set_menus([gpui::Menu::new("tcode").items([gpui::MenuItem::action(
-                tcode_ui::tr!("quit.menu_item"),
-                Quit,
-            )])]);
+            cx.set_menus([gpui::Menu::new(tcode_ui::tr!("app.name")).items([
+                gpui::MenuItem::action(tcode_ui::tr!("quit.menu_item"), Quit),
+            ])]);
             // Process ownership, not the window's current attachment, grants
             // authority to stop the local kernel on application quit.
             let quit_subscription = cx.on_app_quit({
@@ -487,7 +486,7 @@ fn main() {
                 WindowSeam::flush(),
                 ShellOptions {
                     window: window_options,
-                    title: "tcode".into(),
+                    title: tcode_ui::tr!("app.name").into(),
                     fonts: application_fonts,
                     theme_json,
                     activate: true,

crates/computer-use-mcp/src/backend.rs

@@ -258,7 +258,7 @@ pub fn list_roots(filters: &RootFilters) -> Result<Vec<RootInfo>, BackendError>
     if filters.pid == Some(own_pid) {
         return Err(BackendError::new(
             BackendErrorCode::RootNotFound,
-            "the tcode host process cannot observe itself; launch a separate instance to drive it",
+            "the Tcode host process cannot observe itself; launch a separate instance to drive it",
         ));
     }
     #[cfg(target_os = "macos")]

crates/computer-use-mcp/src/tools.rs

@@ -194,7 +194,7 @@ impl ComputerUseTools {
     #[tool(
         description = "Find and rank desktop window roots, returning @rN references; call this before observe_ui when the target is not the frontmost window. \
                        This server exposes desktop windows only, so use the tcode_preview tools for web pages. \
-                       On macOS, grant Accessibility for all tools and Screen Recording for screenshots in tcode Settings → Computer Use; Windows needs no permissions, and other platforms are unsupported."
+                       On macOS, grant Accessibility for all tools and Screen Recording for screenshots in Tcode Settings → Computer Use; Windows needs no permissions, and other platforms are unsupported."
     )]
     async fn find_roots(&self, Parameters(params): Parameters<RootFilters>) -> CallToolResult {
         let permissions = permissions();
@@ -231,7 +231,7 @@ impl ComputerUseTools {
                        Use find_roots → observe_ui, query that cached state with search_ui/expand_ui/inspect_ui, then use act_ui/wait_for and observe again; those cached queries do not touch the live UI. \
                        Every @e ref belongs to its producing state_id; observations are immutable and kept in a bounded LRU (default 8), so an evicted or stale state or a ref from another state requires a fresh observe_ui. \
                        This server exposes desktop windows only, so use the tcode_preview tools for web pages. \
-                       On macOS, grant Accessibility for all tools and Screen Recording for screenshots in tcode Settings → Computer Use; Windows needs no permissions, and other platforms are unsupported."
+                       On macOS, grant Accessibility for all tools and Screen Recording for screenshots in Tcode Settings → Computer Use; Windows needs no permissions, and other platforms are unsupported."
     )]
     async fn observe_ui(&self, Parameters(params): Parameters<ObserveUiParams>) -> CallToolResult {
         let permissions = permissions();
@@ -749,12 +749,12 @@ fn permission_gate(
 ) -> Option<CallToolResult> {
     if needs_accessibility && !permissions.accessibility {
         return Some(tool_error(
-            "Accessibility permission is missing; grant it in tcode Settings → Computer Use.",
+            "Accessibility permission is missing; grant it in Tcode Settings → Computer Use.",
         ));
     }
     if needs_screen_recording && !permissions.screen_recording {
         return Some(tool_error(
-            "Screen Recording permission is missing; grant it in tcode Settings → Computer Use.",
+            "Screen Recording permission is missing; grant it in Tcode Settings → Computer Use.",
         ));
     }
     None

crates/ios/host/Sources/Info.plist

@@ -30,9 +30,9 @@
     <key>NSBonjourServices</key>
     <array><string>_tcode._tcp</string></array>
     <key>NSLocalNetworkUsageDescription</key>
-    <string>查找同一网络中的 tcode 执行端以进行配对。</string>
+    <string>查找同一网络中的 Tcode 执行端以进行配对。</string>
     <key>NSCameraUsageDescription</key>
-    <string>Scan a QR code to pair with a tcode host.</string>
+    <string>Scan a QR code to pair with a Tcode host.</string>
     <key>UIApplicationSceneManifest</key>
     <dict>
         <key>UIApplicationSupportsMultipleScenes</key>

crates/orchestrate-mcp/src/tools.rs

@@ -134,7 +134,7 @@ impl OrchestrateTools {
     }
 
     #[tool(
-        description = "Dispatch concrete execution work to an enabled execution-model profile in a new child tcode thread. Use collaborate for peer decision discussions. Dispatch a brief to the thread and return its thread id. profile is the provider-profile id from the fleet table, required when the entry names one. access is one of read_only (review/investigation: read-only actions run without prompts; anything that mutates pauses for user approval), workspace_write (edits auto-approved inside the workspace), or full (default; no approval prompts). worktree optionally isolates the child in tcode/<thread-id> and overrides the Orchestrate setting; the response identifies the path and branch or explains fallback. Completed children are auto-archived after their result is delivered unless archive_on_complete: false; failed children stay visible for retries. fast overrides the profile's fast-mode setting for this child; use it only on the user's explicit instruction."
+        description = "Dispatch concrete execution work to an enabled execution-model profile in a new child Tcode thread. Use collaborate for peer decision discussions. Dispatch a brief to the thread and return its thread id. profile is the provider-profile id from the fleet table, required when the entry names one. access is one of read_only (review/investigation: read-only actions run without prompts; anything that mutates pauses for user approval), workspace_write (edits auto-approved inside the workspace), or full (default; no approval prompts). worktree optionally isolates the child in tcode/<thread-id> and overrides the Orchestrate setting; the response identifies the path and branch or explains fallback. Completed children are auto-archived after their result is delivered unless archive_on_complete: false; failed children stay visible for retries. fast overrides the profile's fast-mode setting for this child; use it only on the user's explicit instruction."
     )]
     async fn dispatch(&self, Parameters(p): Parameters<DispatchParams>) -> CallToolResult {
         run_op(
@@ -349,7 +349,7 @@ impl ServerHandler for OrchestrateTools {
         ServerInfo::new(ServerCapabilities::builder().enable_tools().build())
             .with_protocol_version(ProtocolVersion::LATEST)
             .with_server_info(Implementation::from_build_env())
-            .with_instructions("Prefer tcode Orchestrate for cross-provider peer collaboration and execution dispatch. Use collaborate for decision discussions, dispatch for implementation, and send to continue either thread.")
+            .with_instructions("Prefer Tcode Orchestrate for cross-provider peer collaboration and execution dispatch. Use collaborate for decision discussions, dispatch for implementation, and send to continue either thread.")
     }
 }
 

crates/preview-mcp/src/tools.rs

@@ -198,15 +198,15 @@ impl PreviewTools {
     }
 
     #[tool(
-        description = "Open the tcode preview browser, optionally at a URL, and return its status. \
+        description = "Open the Tcode preview browser, optionally at a URL, and return its status. \
                        For browser work, call preview_status first and call preview_open if no automation-capable preview is attached before concluding the browser is unavailable. \
                        Do not fall back to Chrome, Playwright, or another browser merely because the preview is initially closed or a first call fails; fall back only when preview_open explicitly reports unsupported or unavailable."
     )]
     async fn preview_open(&self, Parameters(params): Parameters<OpenParams>) -> CallToolResult {
         self.run(PreviewOp::Open { url: params.url }).await
     }
 
-    #[tool(description = "Navigate the tcode preview browser to a URL and return its status.")]
+    #[tool(description = "Navigate the Tcode preview browser to a URL and return its status.")]
     async fn preview_navigate(
         &self,
         Parameters(params): Parameters<NavigateParams>,
@@ -363,7 +363,7 @@ impl ServerHandler for PreviewTools {
             .with_protocol_version(ProtocolVersion::LATEST)
             .with_server_info(Implementation::from_build_env())
             .with_instructions(
-                "Drive the tcode embedded preview browser: open/navigate URLs, inspect and \
+                "Drive the Tcode embedded preview browser: open/navigate URLs, inspect and \
                  automate the page, resize its canvas, press keys, scroll, wait for page \
                  conditions, and capture screenshots. For browser work, call preview_status first \
                  and preview_open when no automation-capable preview is attached; use another \

crates/remote/src/client_host.rs

@@ -346,7 +346,7 @@ fn resolve_device_name(
             clean_name(host_name).and_then(|name| clean_name(Some(strip_local_suffix(name))))
         })
         .or_else(|| clean_name(etc_hostname))
-        .unwrap_or_else(|| "tcode".into())
+        .unwrap_or_else(|| "Tcode".into())
 }
 
 fn clean_name(name: Option<String>) -> Option<String> {

crates/remote/src/server.rs

@@ -441,7 +441,7 @@ pub fn set_password(
         .ok()
         .and_then(|bytes| serde_json::from_slice::<serde_json::Value>(&bytes).ok())
         .and_then(|value| value["host_name"].as_str().map(str::to_owned))
-        .unwrap_or_else(|| "tcode".into());
+        .unwrap_or_else(|| "Tcode".into());
     AuthStore::open(data_dir, &name)?.set_password(password, revoke_tokens)
 }
 

crates/services/src/export.rs

@@ -134,7 +134,7 @@ pub(crate) fn read_tcode_export(path: &Path) -> Result<TcodeThreadExport, ReadEx
         .map_err(|error| ReadExportError::Invalid(error.to_string()))?;
     if header.version != EXPORT_VERSION {
         return Err(ReadExportError::Invalid(format!(
-            "unsupported tcode export version {}",
+            "unsupported Tcode export version {}",
             header.version
         )));
     }
@@ -161,7 +161,7 @@ fn parse_event_log(bytes: &[u8]) -> Result<Vec<StoredEvent>, String> {
 pub fn render_markdown(meta: &SessionMeta, timeline: &Timeline) -> String {
     let model = meta.model.as_deref().unwrap_or("provider default");
     let mut output = format!(
-        "# {}\n\n- Format: tcode Markdown export v1\n- Session ID: `{}`\n- Provider/model: {} / {}\n- Workspace: `{}`\n- Created: {} (Unix seconds)\n- Updated: {} (Unix seconds)\n- Attachments: referenced by recorded local path; file bytes are not embedded.\n- Privacy: no automatic redaction; recorded messages and tool summaries may contain sensitive data. Provider secrets and settings are not included.\n\n",
+        "# {}\n\n- Format: Tcode Markdown export v1\n- Session ID: `{}`\n- Provider/model: {} / {}\n- Workspace: `{}`\n- Created: {} (Unix seconds)\n- Updated: {} (Unix seconds)\n- Attachments: referenced by recorded local path; file bytes are not embedded.\n- Privacy: no automatic redaction; recorded messages and tool summaries may contain sensitive data. Provider secrets and settings are not included.\n\n",
         meta.title,
         meta.id,
         meta.provider.display_name(),
@@ -419,7 +419,7 @@ mod tests {
             String::from_utf8(rendered).unwrap(),
             concat!(
                 "# Export fixture\n\n",
-                "- Format: tcode Markdown export v1\n",
+                "- Format: Tcode Markdown export v1\n",
                 "- Session ID: `session-export-1`\n",
                 "- Provider/model: Claude Code / opus\n",
                 "- Workspace: `/work/project`\n",

crates/ui/examples/phone.rs

@@ -43,7 +43,7 @@ fn main() {
                         window_background: WindowBackgroundAppearance::Opaque,
                         ..Default::default()
                     },
-                    title: "tcode phone".into(),
+                    title: "Tcode phone".into(),
                     theme_json: Cow::Owned(tcode_ui::flattened_theme_json()),
                     activate: true,
                     setup: ShellSetup {

crates/ui/src/material.rs

@@ -211,7 +211,7 @@ pub fn brand_wordmark(cx: &App) -> impl IntoElement {
                 .text_size(px(14.))
                 .font_bold()
                 .text_color(cx.theme().sidebar_foreground)
-                .child("tcode"),
+                .child(crate::tr!("app.name")),
         )
         .child(
             div()

crates/ui/src/provider_status.rs

@@ -238,7 +238,7 @@ mod tests {
         assert_eq!(s.headline, "Disabled");
         assert_eq!(
             s.detail,
-            "This provider is installed but disabled for new sessions in tcode."
+            "This provider is installed but disabled for new sessions in Tcode."
         );
 
         let missing = ProviderSnapshot {

crates/ui/src/run.rs

@@ -63,7 +63,7 @@ impl Default for ShellOptions {
     fn default() -> Self {
         Self {
             window: WindowOptions::default(),
-            title: "tcode".into(),
+            title: crate::tr!("app.name").into(),
             fonts: vec![Cow::Borrowed(crate::assets::DM_SANS)],
             theme_json: Cow::Borrowed(THEME_JSON),
             activate: false,

crates/ui/src/sidebar.rs

@@ -1171,7 +1171,7 @@ impl SessionsSidebar {
                 .text_sm()
                 .font_bold()
                 .text_color(cx.theme().sidebar_foreground)
-                .child("tcode"),
+                .child(crate::tr!("app.name")),
         )
         .child(
             div()