feat(rain): add date preset picker and reduce time clarification prompts.

Default to last 3 days in UI and backend, only ask when time is truly ambiguous, and treat「做成页面」as HTML report pages without follow-up questions.

Co-authored-by: Cursor <cursoragent@cursor.com>

chat-skills.mjs

@@ -550,8 +550,8 @@ export function buildChatSkillPrompt(promptKey, skillName) {
       );
     case 'rain':
       return (
-        '【Rain · MeInput 输入分析】请描述要分析的时间区间和你的诉求（例如「总结昨天我在做什么」）。' +
-        '未写时间则默认近3天；区间不明确时我会先追问。我的问题是：'
+        '【Rain · MeInput 输入分析】在下方选择时间范围（默认近3天），描述你的诉求（例如「总结输入活动」或「做成页面报告」）。' +
+        '我的问题是：'
       );
     case 'summarize':
       return '请总结以下内容，提炼核心结论、重点信息和可执行建议（条理清晰、中文输出）：';

rain-service.test.mjs

@@ -1,6 +1,6 @@
 import test from 'node:test';
 import assert from 'node:assert/strict';
-import { resolveRainTimeRange, RAIN_DEFAULT_DAYS } from './rain-service/time-range.mjs';
+import { resolveRainTimeRange, RAIN_DEFAULT_DAYS, resolveRainTimeRangeFromPreset } from './rain-service/time-range.mjs';
 import { formatMeinputFullBlock } from './rain-service/meinput-full.mjs';
 import { buildRainGooseHandoffText, stripRainSkillPrefix } from './rain-service/llm-analysis.mjs';
 import {
@@ -22,12 +22,28 @@ test('resolveRainTimeRange defaults to 3 days when no time hint', () => {
   assert.ok(spanMs >= RAIN_DEFAULT_DAYS * 24 * 60 * 60 * 1000 - 60_000);
 });
 
-test('resolveRainTimeRange asks clarification for ambiguous phrases', () => {
-  const result = resolveRainTimeRange('前几天我在做什么', new Date('2026-09-04T12:00:00+08:00'));
+test('resolveRainTimeRange defaults to 3 days for fuzzy phrases like 前几天', () => {
+  const now = new Date('2026-09-04T12:00:00+08:00');
+  const result = resolveRainTimeRange('前几天我在做什么', now);
+  assert.equal(result.needsClarification, false);
+  assert.equal(result.source, 'default_3d');
+});
+
+test('resolveRainTimeRange asks clarification only for strictly ambiguous phrases', () => {
+  const result = resolveRainTimeRange('不太确定那段时间我在做什么', new Date('2026-09-04T12:00:00+08:00'));
   assert.equal(result.needsClarification, true);
   assert.match(result.clarificationQuestion ?? '', /起止时间/);
 });
 
+test('resolveRainTimeRangeFromPreset resolves UI presets', () => {
+  const now = new Date('2026-09-06T12:00:00+08:00');
+  const today = resolveRainTimeRangeFromPreset('today', now);
+  assert.equal(today.label, '今天');
+  assert.ok(today.range?.start);
+  const threeDays = resolveRainTimeRangeFromPreset('3d', now);
+  assert.equal(threeDays.label, '近3天');
+});
+
 test('resolveRainTimeRange parses yesterday explicitly', () => {
   const now = new Date('2026-09-04T12:00:00+08:00');
   const result = resolveRainTimeRange('我昨天输入了什么', now);
@@ -94,6 +110,6 @@ test('filterChatSkills hides page templates by default', () => {
 });
 
 test('stripRainSkillPrefix removes rain prompt header', () => {
-  const text = stripRainSkillPrefix('【Rain · MeInput 输入分析】请描述要分析的时间区间和你的诉求。未写时间则默认近3天；区间不明确时我会先追问。我的问题是：总结输入');
+  const text = stripRainSkillPrefix('【Rain · MeInput 输入分析】在下方选择时间范围（默认近3天），描述你的诉求（例如「总结输入活动」或「做成页面报告」）。我的问题是：总结输入');
   assert.equal(text, '总结输入');
 });

rain-service/index.mjs

@@ -1,10 +1,10 @@
 import { RAIN_SKILL_NAME, isRainModeMessage } from '../chat-skills.mjs';
 import { loadRainMeinputRecords, formatMeinputFullBlock } from './meinput-full.mjs';
 import { runRainLlmAnalysis, buildRainGooseHandoffText, stripRainSkillPrefix } from './llm-analysis.mjs';
-import { resolveRainTimeRange, formatRainTimeRangeLabel } from './time-range.mjs';
+import { resolveRainTimeRange, formatRainTimeRangeLabel, resolveRainTimeRangeFromPreset, RAIN_TIME_PRESET_IDS } from './time-range.mjs';
 
 export { RAIN_SKILL_NAME, isRainModeMessage };
-export { resolveRainTimeRange, formatRainTimeRangeLabel, RAIN_DEFAULT_DAYS } from './time-range.mjs';
+export { resolveRainTimeRange, formatRainTimeRangeLabel, RAIN_DEFAULT_DAYS, resolveRainTimeRangeFromPreset, RAIN_TIME_PRESET_IDS } from './time-range.mjs';
 export { formatMeinputFullBlock, loadRainMeinputRecords } from './meinput-full.mjs';
 export { runRainLlmAnalysis, buildRainGooseHandoffText, stripRainSkillPrefix } from './llm-analysis.mjs';
 
@@ -31,7 +31,14 @@ export async function executeRainPipeline(input) {
         : String(input.userMessage?.content ?? ''),
     );
 
-  const timeResolution = resolveRainTimeRange(displayText);
+  const preset = String(input.userMessage?.metadata?.memindRun?.rainTimePreset ?? '').trim();
+  const timeResolution = RAIN_TIME_PRESET_IDS.includes(preset)
+    ? {
+        needsClarification: false,
+        clarificationQuestion: null,
+        ...resolveRainTimeRangeFromPreset(preset),
+      }
+    : resolveRainTimeRange(displayText);
   if (timeResolution.needsClarification) {
     return {
       phase: 'clarify',

rain-service/llm-analysis.mjs

@@ -2,7 +2,7 @@ function stripRainSkillPrefix(text) {
   let next = String(text ?? '').trim();
   next = next.replace(/^【Rain[^】]*】\s*/u, '');
   next = next.replace(/^请使用\s+rain\s+技能[:：]\s*/iu, '');
-  if (/^请描述要分析的时间区间/u.test(next)) {
+  if (/^请描述要分析的时间/u.test(next) || /^在下方选择时间范围/u.test(next)) {
     const marker = '我的问题是：';
     const idx = next.indexOf(marker);
     if (idx >= 0) next = next.slice(idx + marker.length);
@@ -32,6 +32,9 @@ export async function runRainLlmAnalysis(input) {
     '{"needs_clarification":boolean,"clarification_question":string|null,"user_goal":string,"meinput_analysis":string,"suggested_next_steps":string[],"user_reply":string}',
     '- needs_clarification=true 时：clarification_question 必填，user_reply 用自然语言向用户追问；meinput_analysis 可为空。',
     '- needs_clarification=false 时：meinput_analysis 按时间线归纳用户在各 App 的输入活动；user_reply 是可直接展示给用户的中文回复（含区间说明）；suggested_next_steps 供下游 Agent 参考（如生成报告页、继续追问）。',
+    '- 时间区间已在输入中给定，禁止追问「这几天指哪几天」或让用户再次确认区间；若查询范围内实际有记录的时段更短，在 user_reply 中说明实际覆盖时段即可。',
+    '- 用户提到「做成页面」「生成报告」时，默认理解为 MindSpace HTML 可视化报告页；suggested_next_steps 应包含生成 HTML 报告页，禁止追问是要卡片还是页面。',
+    '- needs_clarification 仅用于用户诉求本身完全无法理解（与时间区间、页面形式无关）。',
     '- 不要把内部排序分数、source 字段名暴露给用户。',
   ].join('\n');
 
@@ -99,6 +102,7 @@ export function buildRainGooseHandoffText({
   return [
     '[Rain · MeInput 分析简报]',
     '以下简报由 Rain 分析层基于 MeInput 全量原始输入生成。请据此决定如何回复用户、是否调用工具或 skill；不要重复询问时间区间。',
+    '若用户诉求含「做成页面」或「生成报告」，直接生成 MindSpace HTML 可视化报告页，勿再追问形式。',
     '',
     `时间区间：${timeRangeLabel}`,
     `原始记录条数：${recordCount}`,

rain-service/time-range.mjs

@@ -20,6 +20,15 @@ function addDays(anchor, deltaDays) {
   return new Date(ms);
 }
 
+/** @param {Date} anchor */
+function startOfDay(anchor) {
+  const p = new Date(anchor.getTime() + TZ_OFFSET_MIN * 60_000);
+  const ms =
+    Date.UTC(p.getUTCFullYear(), p.getUTCMonth(), p.getUTCDate(), 0, 0, 0, 0) -
+    TZ_OFFSET_MIN * 60_000;
+  return new Date(ms);
+}
+
 /** @param {Date} anchor */
 function endOfDay(anchor) {
   const p = new Date(anchor.getTime() + TZ_OFFSET_MIN * 60_000);
@@ -29,13 +38,55 @@ function endOfDay(anchor) {
   return new Date(ms);
 }
 
-const AMBIGUOUS_TIME_PATTERNS = [
-  /前几天/u,
-  /那段(?:时间|日子)/u,
-  /上次(?:那)?(?:段|个)/u,
-  /大概.{0,6}(?:昨天|前天|上周|几)/u,
-  /左右/u,
+/** @param {Date} now */
+function buildDefault3dRange(now) {
+  return {
+    start: addDays(now, -RAIN_DEFAULT_DAYS).toISOString(),
+    end: endOfDay(now).toISOString(),
+  };
+}
+
+export const RAIN_TIME_PRESET_IDS = ['today', 'yesterday', '3d', '7d'];
+
+/**
+ * @param {string} presetId
+ * @param {Date} [now]
+ */
+export function resolveRainTimeRangeFromPreset(presetId, now = new Date()) {
+  const id = String(presetId ?? '3d').trim();
+  if (id === 'today') {
+    return {
+      range: { start: startOfDay(now).toISOString(), end: endOfDay(now).toISOString() },
+      source: 'ui_preset',
+      label: '今天',
+    };
+  }
+  if (id === 'yesterday') {
+    const day = addDays(now, -1);
+    return {
+      range: { start: startOfDay(day).toISOString(), end: endOfDay(day).toISOString() },
+      source: 'ui_preset',
+      label: '昨天',
+    };
+  }
+  if (id === '7d') {
+    return {
+      range: { start: addDays(now, -7).toISOString(), end: endOfDay(now).toISOString() },
+      source: 'ui_preset',
+      label: '近7天',
+    };
+  }
+  return {
+    range: buildDefault3dRange(now),
+    source: 'ui_preset',
+    label: `近${RAIN_DEFAULT_DAYS}天`,
+  };
+}
+
+/** Only truly unknowable time phrases trigger clarification; others fall back to default 3d. */
+const STRICT_AMBIGUOUS_TIME_PATTERNS = [
   /不太确定.{0,8}时间/u,
+  /说不清.{0,6}(?:哪|什么).{0,4}(?:天|时间)/u,
 ];
 
 const EXPLICIT_TIME_HINT =
@@ -48,7 +99,7 @@ const EXPLICIT_TIME_HINT =
 export function resolveRainTimeRange(query, now = new Date()) {
   const text = String(query ?? '').trim();
 
-  for (const pattern of AMBIGUOUS_TIME_PATTERNS) {
+  for (const pattern of STRICT_AMBIGUOUS_TIME_PATTERNS) {
     if (pattern.test(text)) {
       return {
         needsClarification: true,
@@ -62,11 +113,9 @@ export function resolveRainTimeRange(query, now = new Date()) {
   }
 
   if (!EXPLICIT_TIME_HINT.test(text)) {
-    const end = endOfDay(now);
-    const start = addDays(now, -RAIN_DEFAULT_DAYS);
     return {
       needsClarification: false,
-      range: { start: start.toISOString(), end: end.toISOString() },
+      range: buildDefault3dRange(now),
       source: 'default_3d',
       label: `近${RAIN_DEFAULT_DAYS}天`,
     };
@@ -77,12 +126,10 @@ export function resolveRainTimeRange(query, now = new Date()) {
     scope.rule_hits?.includes('time:default_week') ||
     scope.rule_hits?.includes('time:recent_fuzzy');
 
-  if (isDefaultFallback && /最近|近期|这几天/u.test(text) && !/最近\s*\d+\s*天/u.test(text)) {
-    const end = endOfDay(now);
-    const start = addDays(now, -RAIN_DEFAULT_DAYS);
+  if (isDefaultFallback && /最近|近期|这几天|前几天|那段(?:时间|日子)/u.test(text) && !/最近\s*\d+\s*天/u.test(text)) {
     return {
       needsClarification: false,
-      range: { start: start.toISOString(), end: end.toISOString() },
+      range: buildDefault3dRange(now),
       source: 'default_3d',
       label: `近${RAIN_DEFAULT_DAYS}天`,
     };

src/components/ChatPanel.tsx

@@ -33,6 +33,7 @@ import {
 import { AvatarPicker } from './AvatarPicker';
 import { ChatSkillPicker } from './ChatSkillPicker';
 import { ChatSkillIcon } from './ChatSkillIcons';
+import { RainTimeRangeBar } from './RainTimeRangeBar';
 import { PageTemplateShopModal } from './PageTemplateShopModal';
 import { ChatLoadingSpinner } from './ChatLoadingSpinner';
 import { ChatSharePreviewModal } from './ChatSharePreviewModal';
@@ -42,6 +43,11 @@ import { PageSaveDialog } from './PageSaveDialog';
 import { VoiceInputButton } from './VoiceInputButton';
 import type { CapabilityMap, ChatFileAttachment, ChatState, Message, PortalUser, Session, ToolConfirmation } from '../types';
 import type { MindSpaceSaveCategory } from '../types';
+import {
+  DEFAULT_RAIN_TIME_PRESET,
+  RAIN_SKILL_ID,
+  type RainTimePresetId,
+} from '../utils/rainTimeRange';
 
 const CHAT_PLACEHOLDER_PROMPTS = [
   '帮我写一篇温柔一点的小短文',
@@ -202,6 +208,7 @@ export function ChatPanel({
       pgRequired?: boolean;
       imageGenerationMode?: ImageGenerationMode;
       selectedChatSkill?: string;
+      rainTimePreset?: RainTimePresetId;
       fileAttachments?: ChatFileAttachment[];
     },
   ) => void | Promise<void>;
@@ -241,6 +248,8 @@ export function ChatPanel({
   const [deepReasoningTipVisible, setDeepReasoningTipVisible] = useState(false);
   const [chatControlOnboardingStep, setChatControlOnboardingStep] = useState<0 | 1 | null>(null);
   const [templateShopOpen, setTemplateShopOpen] = useState(false);
+  const [activeRainSkill, setActiveRainSkill] = useState(false);
+  const [rainTimePreset, setRainTimePreset] = useState<RainTimePresetId>(DEFAULT_RAIN_TIME_PRESET);
   const [activeTemplatePrefill, setActiveTemplatePrefill] = useState<{
     skillId: string;
     label: string;
@@ -840,8 +849,12 @@ export function ChatPanel({
         pgRequired: false,
         imageGenerationMode: 'auto',
         selectedChatSkill,
+        ...(selectedChatSkill === RAIN_SKILL_ID ? { rainTimePreset } : {}),
         fileAttachments: fileAttachmentsToSend,
       });
+      if (selectedChatSkill === RAIN_SKILL_ID) {
+        setActiveRainSkill(false);
+      }
       uploadedImages.forEach(revokePendingImage);
       setPendingImages([]);
       setPendingFiles([]);
@@ -868,6 +881,7 @@ export function ChatPanel({
   }, [
     activeTemplatePrefill,
     forceDeepReasoning,
+    rainTimePreset,
     input,
     onSubmit,
     onUploadFile,
@@ -1255,6 +1269,13 @@ export function ChatPanel({
             </button>
           </div>
         )}
+        {activeRainSkill && !taskInputStatusText && (
+          <RainTimeRangeBar
+            value={rainTimePreset}
+            disabled={voiceDisabled}
+            onChange={setRainTimePreset}
+          />
+        )}
         <div className={`chat-input-row${showHomeWelcome ? ' chat-input-row-home' : ''}`}>
           <div className={`chat-input-shell${showHomeWelcome ? ' chat-input-shell-home' : ''}`}>
             {canUpload && (
@@ -1343,6 +1364,12 @@ export function ChatPanel({
                 }
                 pendingSkillRef.current = skillId ?? null;
                 setActiveTemplatePrefill(null);
+                if (skillId === RAIN_SKILL_ID) {
+                  setActiveRainSkill(true);
+                  setRainTimePreset(DEFAULT_RAIN_TIME_PRESET);
+                } else {
+                  setActiveRainSkill(false);
+                }
                 setInput((current) => mergeChatSkillPromptWithInput(prompt, current));
               }}
             />

src/components/ChatView.tsx

@@ -588,6 +588,7 @@ export function ChatView({
                 pgRequired: options?.pgRequired,
                 imageGenerationMode: options?.imageGenerationMode,
                 selectedChatSkill: options?.selectedChatSkill,
+                rainTimePreset: options?.rainTimePreset,
                 fileAttachments: options?.fileAttachments,
               },
               imageUrls,

src/components/RainTimeRangeBar.tsx

@@ -0,0 +1,37 @@
+import {
+  DEFAULT_RAIN_TIME_PRESET,
+  RAIN_TIME_PRESET_OPTIONS,
+  type RainTimePresetId,
+} from '../utils/rainTimeRange';
+
+export function RainTimeRangeBar({
+  value,
+  disabled,
+  onChange,
+}: {
+  value?: RainTimePresetId;
+  disabled?: boolean;
+  onChange: (preset: RainTimePresetId) => void;
+}) {
+  const active = value ?? DEFAULT_RAIN_TIME_PRESET;
+
+  return (
+    <div className="rain-time-range-bar" role="group" aria-label="Rain 分析时间范围">
+      <span className="rain-time-range-bar-label">时间范围</span>
+      <div className="rain-time-range-bar-options">
+        {RAIN_TIME_PRESET_OPTIONS.map((option) => (
+          <button
+            key={option.id}
+            type="button"
+            className={`rain-time-range-option${active === option.id ? ' is-active' : ''}`}
+            disabled={disabled}
+            aria-pressed={active === option.id}
+            onClick={() => onChange(option.id)}
+          >
+            {option.label}
+          </button>
+        ))}
+      </div>
+    </div>
+  );
+}

src/hooks/useTKMindChat.ts

@@ -100,6 +100,7 @@ type ChatSubmitOptions = {
   pgRequired?: boolean;
   imageGenerationMode?: ImageGenerationMode;
   selectedChatSkill?: string;
+  rainTimePreset?: import('../utils/rainTimeRange').RainTimePresetId;
   fileAttachments?: ChatFileAttachment[];
   goalRunId?: string;
 };
@@ -1874,6 +1875,7 @@ export function useTKMindChat(
           ...(options?.pgRequired ? { pgRequired: true } : {}),
           imageGenerationMode: options?.imageGenerationMode ?? 'auto',
           ...(options?.selectedChatSkill ? { selectedChatSkill: options.selectedChatSkill } : {}),
+          ...(options?.rainTimePreset ? { rainTimePreset: options.rainTimePreset } : {}),
         },
       };
 

src/index.css

@@ -3162,6 +3162,59 @@ body,
   flex: 0 0 auto;
 }
 
+.rain-time-range-bar {
+  display: flex;
+  align-items: center;
+  gap: 10px;
+  margin: 0 0 8px;
+  padding: 8px 10px;
+  border: 1px solid var(--color-border-input);
+  border-radius: var(--radius-lg);
+  background: var(--color-bg-elevated);
+}
+
+.rain-time-range-bar-label {
+  flex: 0 0 auto;
+  font-size: 12px;
+  font-weight: 600;
+  color: var(--color-text-secondary);
+  white-space: nowrap;
+}
+
+.rain-time-range-bar-options {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 6px;
+}
+
+.rain-time-range-option {
+  min-height: 28px;
+  padding: 4px 10px;
+  border: 1px solid var(--color-border-input);
+  border-radius: 999px;
+  background: transparent;
+  color: var(--color-text-secondary);
+  font: inherit;
+  font-size: 12px;
+  cursor: pointer;
+}
+
+.rain-time-range-option:hover:not(:disabled) {
+  color: var(--color-text-primary);
+  border-color: var(--color-border-strong, var(--color-border-input));
+}
+
+.rain-time-range-option.is-active {
+  color: var(--color-text-primary);
+  border-color: rgba(121, 146, 255, 0.55);
+  background: rgba(121, 146, 255, 0.12);
+}
+
+.rain-time-range-option:disabled {
+  opacity: 0.55;
+  cursor: not-allowed;
+}
+
 .chat-deep-reasoning-toggle {
   position: relative;
   display: inline-flex;

src/utils/rainTimeRange.ts

@@ -0,0 +1,12 @@
+export type RainTimePresetId = 'today' | 'yesterday' | '3d' | '7d';
+
+export const RAIN_SKILL_ID = 'rain';
+
+export const RAIN_TIME_PRESET_OPTIONS: ReadonlyArray<{ id: RainTimePresetId; label: string }> = [
+  { id: 'today', label: '今天' },
+  { id: 'yesterday', label: '昨天' },
+  { id: '3d', label: '近3天' },
+  { id: '7d', label: '近7天' },
+];
+
+export const DEFAULT_RAIN_TIME_PRESET: RainTimePresetId = '3d';