diff --git a/components/canvas/CanvasChatPanel.tsx b/components/canvas/CanvasChatPanel.tsx
index 04b5154fa..a03975983 100644
--- a/components/canvas/CanvasChatPanel.tsx
+++ b/components/canvas/CanvasChatPanel.tsx
@@ -2,7 +2,7 @@
 
 import { useChat } from "@ai-sdk/react";
 import { DefaultChatTransport } from "ai";
-import { useEffect, useRef, useState, useCallback, useMemo, type ClipboardEvent as ReactClipboardEvent } from "react";
+import { useEffect, useRef, useState, useCallback, useMemo, type ClipboardEvent as ReactClipboardEvent, type MouseEvent as ReactMouseEvent } from "react";
 import { useSession } from "next-auth/react";
 import { usePathname, useRouter, useSearchParams } from "next/navigation";
 import { createPortal } from "react-dom";
@@ -1222,6 +1222,86 @@ function extractOpenClawActionsFromMarkdown(content: string) {
   };
 }
 
+function splitOpenClawMarkdownTableCells(line: string) {
+  return String(line || "")
+    .trim()
+    .replace(/^\|/, "")
+    .replace(/\|$/, "")
+    .split(/(?<!\\)\|/)
+    .map((cell) =>
+      cell
+        .replace(/\\\|/g, "|")
+        .replace(/\*\*(.*?)\*\*/g, "$1")
+        .replace(/`([^`]+)`/g, "$1")
+        .replace(/\s+/g, "")
+        .trim()
+    );
+}
+
+function isOpenClawRoutingDiagnosticTable(tableLines: string[]) {
+  if (tableLines.length < 3) return false;
+
+  const headerCells = splitOpenClawMarkdownTableCells(tableLines[0] || "");
+  const hasDiagnosticHeader =
+    headerCells.some((cell) => cell.includes("已尝试")) &&
+    headerCells.some((cell) => cell.includes("结果"));
+  if (!hasDiagnosticHeader) return false;
+
+  const bodyText = tableLines
+    .slice(2)
+    .map((line) => splitOpenClawMarkdownTableCells(line).join(" "))
+    .join(" ");
+
+  return (
+    bodyText.includes("标准品类识别") ||
+    bodyText.includes("市场分析准备") ||
+    bodyText.includes("建议示例")
+  );
+}
+
+function stripOpenClawLowValueDiagnosticTables(content: string) {
+  const normalized = String(content || "").replace(/\r\n/g, "\n");
+  if (!normalized.includes("|")) return normalized.trim();
+
+  const lines = normalized.split("\n");
+  const keptLines: string[] = [];
+  let inCodeFence = false;
+
+  for (let index = 0; index < lines.length; index += 1) {
+    const line = lines[index] || "";
+    if (/^\s*```/.test(line)) {
+      inCodeFence = !inCodeFence;
+      keptLines.push(line);
+      continue;
+    }
+
+    if (
+      !inCodeFence &&
+      index < lines.length - 1 &&
+      isLikelyMarkdownTableRow(line) &&
+      isMarkdownTableSeparatorRow(lines[index + 1] || "")
+    ) {
+      let endIndex = index + 2;
+      while (
+        endIndex < lines.length &&
+        isLikelyMarkdownTableRow(lines[endIndex] || "")
+      ) {
+        endIndex += 1;
+      }
+
+      const tableLines = lines.slice(index, endIndex);
+      if (isOpenClawRoutingDiagnosticTable(tableLines)) {
+        index = endIndex - 1;
+        continue;
+      }
+    }
+
+    keptLines.push(line);
+  }
+
+  return keptLines.join("\n").replace(/\n{3,}/g, "\n\n").trim();
+}
+
 type MarkdownTableBlockRange = {
   start: number;
   end: number;
@@ -11568,6 +11648,35 @@ export function CanvasChatPanel({
         (selectedSkillTag
           ? `请输入「${selectedSkillTag.name}」相关需求`
           : "请输入你的设计需求");
+  const clawdEditablePresetPlaceholder =
+    isClawdMode && activeClawdSkillTag
+      ? activeClawdSkillTag.placeholder?.trim() || ""
+      : "";
+  const handleClawdPresetPlaceholderDoubleClick = useCallback(
+    (event: ReactMouseEvent<HTMLDivElement>) => {
+      if (isSubmitting || !isClawdMode || !clawdEditablePresetPlaceholder) return;
+
+      const editor = event.currentTarget;
+      if (input.trim() || getComposerPlainTextFromElement(editor)) return;
+
+      event.preventDefault();
+      event.stopPropagation();
+      composerUserEditedAtRef.current = Date.now();
+      setInput(clawdEditablePresetPlaceholder);
+      editor.textContent = clawdEditablePresetPlaceholder;
+      editor.focus();
+
+      const selection = window.getSelection();
+      if (!selection) return;
+
+      const range = document.createRange();
+      range.selectNodeContents(editor);
+      range.collapse(false);
+      selection.removeAllRanges();
+      selection.addRange(range);
+    },
+    [clawdEditablePresetPlaceholder, input, isClawdMode, isSubmitting]
+  );
   const detailProductCount = DETAIL_PRODUCT_SLOT_INDEXES.filter((index) => Boolean(detailSlots[index]?.url)).length;
   const detailModelReady = DETAIL_MODEL_SLOT_INDEX >= 0 ? Boolean(detailSlots[DETAIL_MODEL_SLOT_INDEX]?.url) : false;
   const detailBundleCount = DETAIL_BUNDLE_SLOT_INDEXES.filter((index) => Boolean(detailSlots[index]?.url)).length;
@@ -12805,7 +12914,11 @@ export function CanvasChatPanel({
                                 const openClawActionsResult = isClawAssistantMessage
                                   ? extractOpenClawActionsFromMarkdown(textWithoutImages)
                                   : { markdown: textWithoutImages, blocks: [] };
-                                const textWithoutActions = openClawActionsResult.markdown;
+                                const textWithoutActions = isClawAssistantMessage
+                                  ? stripOpenClawLowValueDiagnosticTables(
+                                      openClawActionsResult.markdown
+                                    )
+                                  : openClawActionsResult.markdown;
                                 const openClawActionBlocks = openClawActionsResult.blocks;
                                 const analysisSection = extractCanvasImageAnalysisSection(textWithoutActions);
                                 const plainText = normalizeCanvasAgentText(textWithoutActions);
@@ -14457,6 +14570,7 @@ export function CanvasChatPanel({
                     : "text-[#1f2328] empty:before:text-[#a8abb2] dark:text-zinc-100 dark:empty:before:text-zinc-500"
                 )}
                 data-placeholder={composerPlaceholder}
+                onDoubleClick={handleClawdPresetPlaceholderDoubleClick}
                 onInput={(e) => {
                   // 从 contenteditable 中提取纯文本（排除附件标签文本）
                   const target = e.target as HTMLDivElement;
diff --git a/components/elements/response.tsx b/components/elements/response.tsx
index a753ee2f7..c5f55bf87 100644
--- a/components/elements/response.tsx
+++ b/components/elements/response.tsx
@@ -571,10 +571,10 @@ function DownloadableMarkdownTable({
         <table
           ref={tableRef}
           className={cn(
-            "w-max min-w-full table-auto border-collapse text-sm",
-            "[&_td]:min-w-[12rem] [&_td]:align-top [&_td]:whitespace-nowrap",
-            "[&_td:first-child]:min-w-[22rem] [&_th:first-child]:min-w-[22rem]",
-            "[&_th]:min-w-[12rem] [&_th]:whitespace-nowrap",
+            "min-w-full table-auto border-collapse text-sm",
+            "[&_td]:min-w-[10rem] [&_td]:max-w-[24rem] [&_td]:align-top [&_td]:whitespace-normal [&_td]:break-words [&_td]:[overflow-wrap:anywhere] [&_td]:[word-break:break-word]",
+            "[&_td:first-child]:min-w-[12rem] [&_td:first-child]:max-w-[18rem] [&_th:first-child]:min-w-[12rem] [&_th:first-child]:max-w-[18rem]",
+            "[&_th]:min-w-[10rem] [&_th]:max-w-[22rem] [&_th]:whitespace-normal [&_th]:break-words [&_th]:[overflow-wrap:anywhere] [&_th]:[word-break:break-word]",
             className
           )}
           {...props}
@@ -593,7 +593,10 @@ function MarkdownTableCell({
 }: MarkdownTableCellProps) {
   return (
     <td
-      className={cn("min-w-[12rem] align-top !whitespace-nowrap", className)}
+      className={cn(
+        "min-w-[10rem] max-w-[24rem] align-top !whitespace-normal break-words [overflow-wrap:anywhere] [word-break:break-word]",
+        className
+      )}
       {...props}
     />
   );
@@ -606,7 +609,10 @@ function MarkdownTableHeaderCell({
 }: MarkdownTableHeaderCellProps) {
   return (
     <th
-      className={cn("min-w-[12rem] !whitespace-nowrap", className)}
+      className={cn(
+        "min-w-[10rem] max-w-[22rem] !whitespace-normal break-words [overflow-wrap:anywhere] [word-break:break-word]",
+        className
+      )}
       {...props}
     />
   );