From 0146d1bf8a134623296924b793dda748cf4657db Mon Sep 17 00:00:00 2001
From: agentson <agentson@localhost>
Date: Wed, 25 Feb 2026 01:16:51 +0900
Subject: [PATCH] =?UTF-8?q?fix:=20Gemini=20compressed=20prompt=20=ED=82=A4?=
 =?UTF-8?q?=20=EB=B6=88=EC=9D=BC=EC=B9=98=20=EB=B0=8F=20=ED=95=B4=EC=99=B8?=
 =?UTF-8?q?=20=EC=8A=A4=EC=BA=90=EB=84=88=20GUBN=3D0=20=EC=88=98=EC=A0=95?=
 =?UTF-8?q?=20(#242,=20#243)?=
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Content-Type: text/plain; charset=UTF-8
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- prompt_optimizer: build_compressed_prompt의 JSON 키를 act/conf/reason에서
  action/confidence/rationale로 수정 (parse_response와 일치시킴)
  → Gemini 응답 100% HOLD로 처리되던 버그 수정
- overseas: fetch_overseas_rankings의 GUBN 파라미터를 1(상승)에서 0(전체)으로 변경
  → 변동성 스캐너가 상승/하락 모두 대상으로 NASDAQ 후보 발견 가능
- test: GUBN==0 검증, build_compressed_prompt 키 이름 검증 추가

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 src/brain/prompt_optimizer.py  | 4 ++--
 src/broker/overseas.py         | 2 +-
 tests/test_overseas_broker.py  | 2 +-
 tests/test_token_efficiency.py | 4 ++++
 4 files changed, 8 insertions(+), 4 deletions(-)

diff --git a/src/brain/prompt_optimizer.py b/src/brain/prompt_optimizer.py
index 7dc2c17..fdc0d99 100644
--- a/src/brain/prompt_optimizer.py
+++ b/src/brain/prompt_optimizer.py
@@ -179,8 +179,8 @@ class PromptOptimizer:
             # Minimal instructions
             prompt = (
                 f"{market_name} trader. Analyze:\n{data_str}\n\n"
-                'Return JSON: {"act":"BUY"|"SELL"|"HOLD","conf":<0-100>,"reason":"<text>"}\n'
-                "Rules: act=BUY/SELL/HOLD, conf=0-100, reason=concise. No markdown."
+                'Return JSON: {"action":"BUY"|"SELL"|"HOLD","confidence":<0-100>,"rationale":"<text>"}\n'
+                "Rules: action=BUY/SELL/HOLD, confidence=0-100, rationale=concise. No markdown."
             )
         else:
             # Data only (for cached contexts where instructions are known)
diff --git a/src/broker/overseas.py b/src/broker/overseas.py
index 84b0fdb..13f3903 100644
--- a/src/broker/overseas.py
+++ b/src/broker/overseas.py
@@ -133,7 +133,7 @@ class OverseasBroker:
                 "AUTH": "",
                 "EXCD": ranking_excd,
                 "NDAY": "0",
-                "GUBN": "1",
+                "GUBN": "0",  # 0=전체(상승+하락), 1=상승만 — 변동성 스캐너는 전체 필요
                 "VOL_RANG": "0",
             }
 
diff --git a/tests/test_overseas_broker.py b/tests/test_overseas_broker.py
index 65d6d60..3f346f6 100644
--- a/tests/test_overseas_broker.py
+++ b/tests/test_overseas_broker.py
@@ -124,7 +124,7 @@ class TestFetchOverseasRankings:
         assert "/uapi/overseas-stock/v1/ranking/updown-rate" in url
         assert params["EXCD"] == "NAS"
         assert params["NDAY"] == "0"
-        assert params["GUBN"] == "1"
+        assert params["GUBN"] == "0"  # 0=전체(상승+하락), 변동성 스캐너에 필요
         assert params["VOL_RANG"] == "0"
 
         overseas_broker._broker._auth_headers.assert_called_with("HHDFS76290000")
diff --git a/tests/test_token_efficiency.py b/tests/test_token_efficiency.py
index 96bcbfc..c049d1c 100644
--- a/tests/test_token_efficiency.py
+++ b/tests/test_token_efficiency.py
@@ -124,6 +124,10 @@ class TestPromptOptimizer:
         assert len(prompt) < 300
         assert "005930" in prompt
         assert "75000" in prompt
+        # Keys must match parse_response expectations (#242)
+        assert '"action"' in prompt
+        assert '"confidence"' in prompt
+        assert '"rationale"' in prompt
 
     def test_build_compressed_prompt_no_instructions(self):
         """Test compressed prompt without instructions."""
-- 
2.49.1