fix(webui): prioritize skill names in autocomplete

webui/src/components/thread/ThreadComposer.tsx

@@ -286,6 +286,7 @@ interface SlashPaletteCommand {
   title: string;
   description: string;
   icon: string;
+  kind?: "skill";
   argHint?: string;
   detail: string;
   badge?: string;
@@ -1009,6 +1010,7 @@ export function ThreadComposer({
             description,
             detail: description,
             icon: "brain",
+            kind: "skill" as const,
             recent: recentSlashCommands.includes(command),
           };
         })
@@ -2582,6 +2584,7 @@ function SlashCommandPalette({
         {commands.map((command, index) => {
           const Icon = COMMAND_ICONS[command.icon] ?? CircleHelp;
           const selected = index === selectedIndex;
+          const isSkill = command.kind === "skill";
           const commandKey = slashCommandI18nKey(command.command);
           const title = t(`thread.composer.slash.commands.${commandKey}.title`, {
             defaultValue: command.title,
@@ -2617,23 +2620,34 @@ function SlashCommandPalette({
                 <Icon className="h-4 w-4" />
               </span>
               <span className="flex min-w-0 flex-1 flex-col gap-0.5 sm:flex-row sm:items-baseline sm:gap-2">
-                <span className="min-w-0 truncate text-[13.5px] font-semibold tracking-normal text-foreground">
+                <span
+                  className={cn(
+                    "text-[13.5px] font-semibold tracking-normal text-foreground",
+                    isSkill
+                      ? "max-w-full shrink-0 break-all sm:max-w-[55%]"
+                      : "min-w-0 truncate",
+                  )}
+                >
                   {title}
                 </span>
                 <span className="min-w-0 truncate text-[13px] text-muted-foreground">
                   {command.detail || description}
                 </span>
               </span>
+              {!isSkill || command.badge || command.recent ? (
                 <span className="ml-2 flex max-w-[42%] shrink-0 items-center gap-1.5 sm:max-w-none">
                   {command.badge || command.recent ? (
                     <span className="hidden rounded-full bg-foreground/[0.055] px-2 py-1 text-[11px] font-medium text-muted-foreground sm:inline-flex">
                       {command.badge ?? t("thread.composer.slash.badges.recent")}
                     </span>
                   ) : null}
+                  {!isSkill ? (
                     <span className="font-mono text-[12px] text-muted-foreground/60">
                       {command.argHint ? `${command.command} ${command.argHint}` : command.command}
                     </span>
+                  ) : null}
                 </span>
+              ) : null}
             </button>
           );
         })}

webui/src/tests/thread-composer.test.tsx

@@ -1146,14 +1146,15 @@ describe("ThreadComposer", () => {
     });
   });
 
-  it("opens skills only from a $ reference anywhere", () => {
+  it("opens skills only from a $ reference and prioritizes the skill name", () => {
+    const skillName = "arxiv-intelligence-filter";
     render(
         <ThreadComposer
           onSend={vi.fn()}
           placeholder="Type your message..."
           skills={[{
-            name: "github",
-            description: "Work with pull requests and issues",
+            name: skillName,
+            description: "Fetch and summarize the latest AI research papers every day",
             source: "builtin",
             available: true,
           }]}
@@ -1165,15 +1166,18 @@ describe("ThreadComposer", () => {
     fireEvent.change(input, { target: { value: "/git", selectionStart: 4 } });
     expect(screen.queryByRole("listbox", { name: "Slash commands" })).not.toBeInTheDocument();
 
-    fireEvent.change(input, { target: { value: "please use $git", selectionStart: 15 } });
+    fireEvent.change(input, { target: { value: "please use $arxiv", selectionStart: 17 } });
 
     const palette = screen.getByRole("listbox", { name: "Slash commands" });
-    expect(within(palette).getByRole("option", { name: /github/i })).toHaveTextContent("$github");
+    const option = within(palette).getByRole("option", { name: new RegExp(skillName, "i") });
+    const name = within(option).getByText(skillName);
+    expect(name).not.toHaveClass("truncate");
+    expect(within(option).queryByText(`$${skillName}`)).not.toBeInTheDocument();
     expect(within(palette).queryByText("/model")).not.toBeInTheDocument();
 
     fireEvent.keyDown(input, { key: "Tab" });
 
-    expect(input).toHaveValue("please use $github ");
+    expect(input).toHaveValue(`please use $${skillName} `);
   });
 
   it("shows right-side source badges so users can distinguish CLI apps from MCP servers", () => {