diff --git a/apps/web/src/workspace.tsx b/apps/web/src/workspace.tsx
index 447145ad..a1e9733b 100644
--- a/apps/web/src/workspace.tsx
+++ b/apps/web/src/workspace.tsx
@@ -34,7 +34,7 @@ import type {
 export type Pane = "chat";
 
 const CHAT_PANE = {
-	initial: 304,
+	initial: 364,
 	max: 400,
 	min: 304,
 	storageKey: "chopin:pane:chat",
diff --git a/e2e/conversation-plan-layout.e2e.ts b/e2e/conversation-plan-layout.e2e.ts
index 19f342d0..3e27a689 100644
--- a/e2e/conversation-plan-layout.e2e.ts
+++ b/e2e/conversation-plan-layout.e2e.ts
@@ -11,15 +11,16 @@ function chatPane(page: Page) {
 	return page.getByRole("complementary", { includeHidden: true, name: "Chat" });
 }
 
-test("desktop Chat sits before the document at its initial 304px width", async ({ join, page }) => {
+test("desktop Chat retains its width and stays beside the document as the window grows", async ({ join, page }) => {
 	await page.setViewportSize({ width: 1280, height: 800 });
 	await join("ana");
 	let chat = chatPane(page);
 	let document = page.locator("main");
+	let initialWidth = (await box(chat)).width;
 
 	for (let width of [1280, 1440]) {
 		await page.setViewportSize({ width, height: 800 });
-		await expect.poll(async () => (await box(chat)).width).toBeCloseTo(304, 0);
+		await expect.poll(async () => (await box(chat)).width).toBeCloseTo(initialWidth, 0);
 		let [chatBox, documentBox, frameBox] = await Promise.all([
 			box(chat),
 			box(document),
@@ -47,11 +48,11 @@ test("the Chat edge grows right, keeps its left-side reopen control, and remembe
 
 	await page.mouse.move(dragX, dragY);
 	await page.mouse.down();
-	await page.mouse.move(dragX + 40, dragY, {
+	await page.mouse.move(dragX + 20, dragY, {
 		steps: 4,
 	});
 	await page.mouse.up();
-	await expect.poll(async () => (await box(chat)).width).toBeGreaterThan(initial.width + 30);
+	await expect.poll(async () => (await box(chat)).width).toBeGreaterThan(initial.width + 10);
 	expect((await box(chat)).x).toBeCloseTo(initial.x, 0);
 	let pointerWidth = (await box(chat)).width;
 
diff --git a/scripts/design-contract/exceptions/dynamic-web.json b/scripts/design-contract/exceptions/dynamic-web.json
index 07142142..f153291b 100644
--- a/scripts/design-contract/exceptions/dynamic-web.json
+++ b/scripts/design-contract/exceptions/dynamic-web.json
@@ -214,7 +214,7 @@
 				1
 			]
 		],
-		"sourceHash": "5f41df3a09f1671ac41a3b0b70cd4416efecbcc76e7ed4a45d16b49b7e29c49d"
+		"sourceHash": "7b07be5a575fd36ebaac2f95b3f08258126e1efb2a2b3c48790502e63d382f7f"
 	},
 	{
 		"file": "apps/web/src/workspace.tsx",
@@ -249,7 +249,7 @@
 				2
 			]
 		],
-		"sourceHash": "5f41df3a09f1671ac41a3b0b70cd4416efecbcc76e7ed4a45d16b49b7e29c49d"
+		"sourceHash": "7b07be5a575fd36ebaac2f95b3f08258126e1efb2a2b3c48790502e63d382f7f"
 	},
 	{
 		"file": "apps/web/src/navigation-dialog.tsx",