fix(consult): a stored smalltalk reply is not a prior answer; summary counts as one (acceptance fix for BUG-1071)

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0199rbQDTsUbCVw84wc8BTFe

frontend/src/app/api/consult/route.ts

@@ -995,8 +995,8 @@ export async function POST(request: Request) {
     // A session that already holds an answer gets the follow-up shape
     // (BUG-1071): a direct answer, no skeleton. That is read from the stored
     // history, never from the wording of the question.
-    const followUpTurn = hasPriorAssistantAnswer(history);
-    const natalInstruction = `${natalToolInstruction}${natalUserTurnShape({ entrypoint: consultEntrypoint, history })}`;
+    const followUpTurn = hasPriorAssistantAnswer(history, { summaryText: historyWindow.summaryText });
+    const natalInstruction = `${natalToolInstruction}${natalUserTurnShape({ entrypoint: consultEntrypoint, history, summaryText: historyWindow.summaryText })}`;
     const adoptedRangeNote = consultationMode === "verified_chart"
       && prepared.serverChart?.truth.birthTimeStatus === "accepted"
       && prepared.serverChart.toolInput.candidate_range
@@ -1518,7 +1518,7 @@ export async function POST(request: Request) {
     const workflowReceipt = consultationWorkflowReceipt(workflowContext);
     // The grounded fallback writes from the injected workflow; same first-turn
     // / follow-up split as the agentic path (BUG-1071), one statement of it.
-    const legacyNatalInstruction = hasPriorAssistantAnswer(history)
+    const legacyNatalInstruction = hasPriorAssistantAnswer(history, { summaryText: historyWindow.summaryText })
       ? followUpAnswerShapeInstruction()
       : "先用不超过 400 字口语直接回答下面的问题，不要加标题；形状为：先给反差（表面 A，底下 B，都是盘上的结构，命名成一个格局）、再说清谁在推谁在修、然后「别去应 X 的象，去扮演 Y 的象」；开场不写行动。然后按三个二级标题写：## 盘里支持这个判断的地方（原始结构、六步宫位、Yoga 表作为依据，只写开场没说过的，表格与正文二选一）、## 时间怎么看、## 这周可以做的一件事（最多三条行动，只在这里出现一次）。全文不超过 900 字。骨架不可省略；不写「先回答你的问题」这个标题，文末技法审计表由产品界面折叠展示，不写进正文。星盘事实只使用系统里已经注入的计算结果，不要复述内部字段、JSON 或再跑一遍咨询流程。";
 

frontend/src/lib/consultation-session-history.ts

@@ -15,6 +15,8 @@ export const SESSION_CONTEXT_SUMMARY_HEADING = "【会话摘要（服务端维
 export type ConsultationHistoryMessage = Readonly<{
   role: "user" | "assistant";
   text: string;
+  /** A stored smalltalk reply (BUG-976/977 fast path); it is not a natal answer. */
+  responseKind?: "smalltalk";
 }>;
 
 export type SessionContextSummaryV1 = Readonly<{
@@ -37,6 +39,7 @@ type StoredTurn = Readonly<{
   role: "user" | "assistant";
   text: string;
   requestId: string | null;
+  responseKind?: "smalltalk";
 }>;
 
 function clamp(value: number, min: number, max: number): number {
@@ -107,7 +110,7 @@ export function storedConsultationTurns(
   const rows: StoredTurn[] = [];
   messages.forEach((message, index) => {
     if (!message || typeof message !== "object") return;
-    const stored = message as { role?: unknown; text?: unknown; requestId?: unknown };
+    const stored = message as { role?: unknown; text?: unknown; requestId?: unknown; responseKind?: unknown };
     if (options.excludeRequestId && stored.requestId === options.excludeRequestId) return;
     if (stored.role !== "user" && stored.role !== "assistant") return;
     if (typeof stored.text !== "string" || !stored.text) return;
@@ -116,6 +119,7 @@ export function storedConsultationTurns(
       role: stored.role,
       text: stored.text,
       requestId: typeof stored.requestId === "string" ? stored.requestId : null,
+      ...(stored.responseKind === "smalltalk" ? { responseKind: "smalltalk" as const } : {}),
     });
   });
   return rows;
@@ -156,6 +160,7 @@ export function consultationHistoryWindow(
   const clipped = selected.map((turn) => ({
     role: turn.role,
     text: clipConsultationHistoryText(turn.text),
+    ...(turn.responseKind ? { responseKind: turn.responseKind } : {}),
   }));
   const budget = historyBudgetChars(options.contextWindow);
   let droppedCount = 0;

frontend/src/lib/consultation-thinking-plan.ts

@@ -383,11 +383,21 @@ export function followUpAnswerShapeInstruction(): string {
   ].join("");
 }
 
-/** The stored history already holds an assistant answer: this turn is a follow-up (D6, no intent regex). */
+/**
+ * The session already holds a natal answer, so this turn is a follow-up (D6,
+ * no intent regex). A stored smalltalk reply (「你好」 fast path) is an
+ * assistant message but not an answer, so it does not count; a session
+ * context summary only exists after earlier consultation turns were
+ * summarized away, so it counts even when the tail no longer holds them.
+ */
 export function hasPriorAssistantAnswer(
-  history: ReadonlyArray<Readonly<{ role: "user" | "assistant"; text: string }>>,
+  history: ReadonlyArray<Readonly<{ role: "user" | "assistant"; text: string; responseKind?: "smalltalk" }>>,
+  options: Readonly<{ summaryText?: string | null }> = {},
 ): boolean {
-  return history.some((message) => message.role === "assistant" && message.text.trim().length > 0);
+  if (options.summaryText?.trim()) return true;
+  return history.some((message) => (
+    message.role === "assistant" && message.responseKind !== "smalltalk" && message.text.trim().length > 0
+  ));
 }
 
 /**
@@ -397,10 +407,11 @@ export function hasPriorAssistantAnswer(
  */
 export function natalUserTurnShape(input: {
   entrypoint?: string;
-  history: ReadonlyArray<Readonly<{ role: "user" | "assistant"; text: string }>>;
+  history: ReadonlyArray<Readonly<{ role: "user" | "assistant"; text: string; responseKind?: "smalltalk" }>>;
+  summaryText?: string | null;
 }): string {
   if (input.entrypoint === "daily_starlanguage") return dailyAnswerShapeInstruction();
-  return hasPriorAssistantAnswer(input.history)
+  return hasPriorAssistantAnswer(input.history, { summaryText: input.summaryText })
     ? followUpAnswerShapeInstruction()
     : natalAnswerShapeInstruction();
 }

frontend/src/mastra/product-voice.ts

@@ -66,6 +66,6 @@ Raman yogas and house steps remain governed_support_only_candidate_ready: write
 Never:
 - Skip a card fact the question needs in order to keep the answer short — and never write a card fact the question does not need in order to look thorough.
 - Put the Technique Audit Table or 统一参数 heading back into the spoken body.
-- State what the user or the person asked about wants, needs, or feels; state where the chart puts them.
+- State what the user or the person asked about wants, needs, or feels. Say where the chart puts them instead.
 
 The first natal career/wealth/marriage/family answer of a session uses the opener-plus-skeleton above; a follow-up turn follows the shape instruction carried in the user turn (a direct answer of about 200 characters, no headings) unless the user changes domain or asks for the full reading.`;