refactor(goose2): remove attachment preamble (#9052)

ui/goose2/src/features/chat/hooks/__tests__/useChat.attachments.test.ts

@@ -50,7 +50,7 @@ describe("useChat attachments", () => {
     mockAcpSetModel.mockResolvedValue(undefined);
   });
 
-  it("stores non-image attachments in metadata and prepends path references to the prompt", async () => {
+  it("stores non-image attachments in metadata and appends absolute paths to the prompt", async () => {
     const { result } = renderHook(() => useChat("session-1"));
     const attachments = [
       {
@@ -93,7 +93,7 @@ describe("useChat attachments", () => {
     ]);
     expect(mockAcpSendMessage).toHaveBeenCalledWith(
       "session-1",
-      "Attached items:\n- [file] /tmp/report.pdf\n- [directory] /tmp/screenshots\nPlease review these",
+      "Please review these /tmp/report.pdf /tmp/screenshots",
       {
         systemPrompt: undefined,
         personaId: undefined,
@@ -101,6 +101,12 @@ describe("useChat attachments", () => {
         images: undefined,
       },
     );
+
+    // The bubble's displayed text must remain the raw user input — appended
+    // paths are wire-only so they don't clutter the rendered message.
+    expect(message.content).toEqual([
+      { type: "text", text: "Please review these" },
+    ]);
   });
 
   it("keeps image attachments in ACP images while preserving path metadata", async () => {
@@ -142,19 +148,15 @@ describe("useChat attachments", () => {
         },
       },
     ]);
-    expect(mockAcpSendMessage).toHaveBeenCalledWith(
+    expect(mockAcpSendMessage).toHaveBeenCalledWith("session-1", " ", {
-      "session-1",
+      systemPrompt: undefined,
-      "Attached items:\n- [image] diagram.png (image attached)\n ",
+      personaId: undefined,
-      {
+      personaName: undefined,
-        systemPrompt: undefined,
+      images: [["abc123", "image/png"]],
-        personaId: undefined,
+    });
-        personaName: undefined,
-        images: [["abc123", "image/png"]],
-      },
-    );
   });
 
-  it("includes image attachments in the prompt summary for mixed sends", async () => {
+  it("includes file/directory paths in the prompt for mixed sends; images flow through ACP image content blocks only", async () => {
     const { result } = renderHook(() => useChat("session-1"));
     const attachments = [
       {
@@ -191,7 +193,7 @@ describe("useChat attachments", () => {
 
     expect(mockAcpSendMessage).toHaveBeenCalledWith(
       "session-1",
-      "Attached items:\n- [file] /tmp/mobile-confirmation.html\n- [directory] /tmp/neighborhood block\n- [image] Screenshot 2026-04-09 at 1.25.32 PM.png (image attached)\ncan you see the attachments i attached?",
+      "can you see the attachments i attached? /tmp/mobile-confirmation.html /tmp/neighborhood block",
       {
         systemPrompt: undefined,
         personaId: undefined,
@@ -231,7 +233,7 @@ describe("useChat attachments", () => {
     ]);
     expect(mockAcpSendMessage).toHaveBeenCalledWith(
       "session-1",
-      "Attached items:\n- [file] report.pdf\nPlease review this",
+      "Please review this",
       {
         systemPrompt: undefined,
         personaId: undefined,

ui/goose2/src/features/chat/hooks/useChat.ts

@@ -21,8 +21,8 @@ import {
 import { findLastIndex } from "@/shared/lib/arrays";
 import { perfLog } from "@/shared/lib/perfLog";
 import {
+  appendAttachmentPaths,
   buildAcpImages,
-  buildAttachmentPromptPreamble,
   buildMessageAttachments,
 } from "../lib/attachments";
 import { sanitizeReplayMessages } from "../lib/replaySanitizer";
@@ -229,12 +229,9 @@ export function useChat(
         await options?.ensurePrepared?.(effectivePersonaInfo?.id);
 
         store.setChatState(sessionId, "streaming");
-        // When images are present with no text, pass a single space so the ACP
+        const promptWithPaths = appendAttachmentPaths(text.trim(), attachments);
-        // driver doesn't send an empty text content block that goose rejects.
+        const acpPrompt =
-        const attachmentPromptPreamble =
+          promptWithPaths || (images?.length ? " " : promptWithPaths);
-          buildAttachmentPromptPreamble(attachments);
-        const promptBody = text.trim() || (images?.length ? " " : text);
-        const acpPrompt = `${attachmentPromptPreamble}${promptBody}`;
         const tAcp = performance.now();
         perfLog(
           `[perf:send] ${sid} → acpSendMessage (setup took ${(tAcp - tSendStart).toFixed(1)}ms)`,

ui/goose2/src/features/chat/lib/attachments.ts

@@ -3,28 +3,20 @@ import type {
   MessageAttachment,
 } from "@/shared/types/messages";
 
-function formatAttachmentReference(attachment: ChatAttachmentDraft): string {
+export function appendAttachmentPaths(
-  const location =
+  text: string,
-    attachment.kind === "image"
-      ? `${attachment.name} (image attached)`
-      : (attachment.path ?? attachment.name);
-  return `- [${attachment.kind}] ${location}`;
-}
-
-export function buildAttachmentPromptPreamble(
   attachments: ChatAttachmentDraft[] | undefined,
 ): string {
-  const referencedAttachments = attachments ?? [];
+  const paths = (attachments ?? [])
+    .filter((attachment) => attachment.kind !== "image" && attachment.path)
+    .map((attachment) => attachment.path as string);
 
-  if (referencedAttachments.length === 0) {
+  if (paths.length === 0) {
-    return "";
+    return text;
   }
 
-  return [
+  const joined = paths.join(" ");
-    "Attached items:",
+  return text ? `${text} ${joined}` : joined;
-    ...referencedAttachments.map(formatAttachmentReference),
-    "",
-  ].join("\n");
 }
 
 export function buildMessageAttachments(

ui/goose2/tests/e2e/fixtures/tauri-mock.ts

@@ -47,6 +47,7 @@ export function buildInitScript(options?: {
           defaultModel: "claude-sonnet-4-20250514",
           configured: true,
           providerType: "Preferred",
+          category: "model",
           configKeys: [],
           setupSteps: [],
           supportsRefresh: true,
@@ -72,6 +73,7 @@ export function buildInitScript(options?: {
           defaultModel: "gpt-4.1",
           configured: true,
           providerType: "Preferred",
+          category: "model",
           configKeys: [],
           setupSteps: [],
           supportsRefresh: true,
@@ -203,6 +205,8 @@ export function buildInitScript(options?: {
           }
           case "_goose/providers/list":
             return jsonRpcResult(message.id, { entries: PROVIDER_INVENTORY });
+          case "_goose/providers/setup/catalog/list":
+            return jsonRpcResult(message.id, { providers: [] });
           case "_goose/providers/inventory/refresh":
             return jsonRpcResult(message.id, { started: [], skipped: [] });
           case "_goose/defaults/read":