fix: add full Gemini toolset support for UI rendering and permissions (#273)

Co-authored-by: Letta <noreply@letta.com>

src/cli/components/ApprovalDialogRich.tsx

@@ -252,14 +252,16 @@ const DynamicPreview: React.FC<DynamicPreviewProps> = ({
     );
   }
 
-  // File edit previews: write/edit/multi_edit/replace/write_file
+  // File edit previews: write/edit/multi_edit/replace/write_file/write_file_gemini
   if (
     (t === "write" ||
       t === "edit" ||
       t === "multiedit" ||
       t === "replace" ||
       t === "write_file" ||
-      t === "writefile") &&
+      t === "writefile" ||
+      t === "write_file_gemini" ||
+      t === "writefilegemini") &&
     parsedArgs
   ) {
     try {
@@ -269,7 +271,11 @@ const DynamicPreview: React.FC<DynamicPreviewProps> = ({
       if (precomputedDiff) {
         return (
           <Box flexDirection="column" paddingLeft={2}>
-            {t === "write" || t === "write_file" || t === "writefile" ? (
+            {t === "write" ||
+            t === "write_file" ||
+            t === "writefile" ||
+            t === "write_file_gemini" ||
+            t === "writefilegemini" ? (
               <AdvancedDiffRenderer
                 precomputed={precomputedDiff}
                 kind="write"
@@ -307,7 +313,13 @@ const DynamicPreview: React.FC<DynamicPreviewProps> = ({
       }
 
       // Fallback to non-precomputed rendering
-      if (t === "write" || t === "write_file" || t === "writefile") {
+      if (
+        t === "write" ||
+        t === "write_file" ||
+        t === "writefile" ||
+        t === "write_file_gemini" ||
+        t === "writefilegemini"
+      ) {
         return (
           <Box flexDirection="column" paddingLeft={2}>
             <AdvancedDiffRenderer
@@ -362,7 +374,9 @@ const DynamicPreview: React.FC<DynamicPreviewProps> = ({
     t === "edit" ||
     t === "multiedit" ||
     t === "replace" ||
-    t === "write_file"
+    t === "write_file" ||
+    t === "write_file_gemini" ||
+    t === "writefilegemini"
   ) {
     return (
       <Box flexDirection="column" paddingLeft={2}>
@@ -531,7 +545,13 @@ export const ApprovalDialog = memo(function ApprovalDialog({
     if (!parsedArgs || !approvalRequest) return null;
 
     const toolName = approvalRequest.toolName.toLowerCase();
-    if (toolName === "write") {
+    if (
+      toolName === "write" ||
+      toolName === "write_file" ||
+      toolName === "writefile" ||
+      toolName === "write_file_gemini" ||
+      toolName === "writefilegemini"
+    ) {
       const result = computeAdvancedDiff({
         kind: "write",
         filePath: parsedArgs.file_path as string,
@@ -673,14 +693,20 @@ function getHeaderLabel(toolName: string): string {
   if (t === "updateplan") return "Plan update";
   // Gemini toolset (snake_case)
   if (t === "run_shell_command") return "Shell command";
+  if (t === "read_file_gemini") return "Read File";
   if (t === "list_directory") return "List Directory";
+  if (t === "glob_gemini") return "Find Files";
   if (t === "search_file_content") return "Search in Files";
+  if (t === "write_file_gemini") return "Write File";
   if (t === "write_todos") return "Update Todos";
   if (t === "read_many_files") return "Read Multiple Files";
   // Gemini toolset (PascalCase → lowercased)
   if (t === "runshellcommand") return "Shell command";
+  if (t === "readfilegemini") return "Read File";
   if (t === "listdirectory") return "List Directory";
+  if (t === "globgemini") return "Find Files";
   if (t === "searchfilecontent") return "Search in Files";
+  if (t === "writefilegemini") return "Write File";
   if (t === "writetodos") return "Update Todos";
   if (t === "readmanyfiles") return "Read Multiple Files";
   // Shared/additional tools

src/cli/components/ToolCallMessageRich.tsx

@@ -135,6 +135,7 @@ export const ToolCallMessage = memo(({ line }: { line: ToolCallLine }) => {
         const parsedArgs = JSON.parse(line.argsText);
         if (parsedArgs.todos && Array.isArray(parsedArgs.todos)) {
           // Convert todos to safe format for TodoRenderer
+          // Note: Anthropic/Codex use "content", Gemini uses "description"
           const safeTodos = parsedArgs.todos.map((t: unknown, i: number) => {
             const rec = isRecord(t) ? t : {};
             const status: "pending" | "in_progress" | "completed" =
@@ -144,8 +145,13 @@ export const ToolCallMessage = memo(({ line }: { line: ToolCallLine }) => {
                   ? "in_progress"
                   : "pending";
             const id = typeof rec.id === "string" ? rec.id : String(i);
+            // Handle both "content" (Anthropic/Codex) and "description" (Gemini) fields
             const content =
-              typeof rec.content === "string" ? rec.content : JSON.stringify(t);
+              typeof rec.content === "string"
+                ? rec.content
+                : typeof rec.description === "string"
+                  ? rec.description
+                  : JSON.stringify(t);
             const priority: "high" | "medium" | "low" | undefined =
               rec.priority === "high"
                 ? "high"