From bb0280274e9b539a195bb78d44cb768d03dfb6e3 Mon Sep 17 00:00:00 2001
From: gahusb <bgg8988@gmail.com>
Date: Sat, 6 Jun 2026 12:56:21 +0900
Subject: [PATCH] =?UTF-8?q?feat(insta-lab):=20card=5Fwriter=20=ED=94=84?=
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Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 insta-lab/app/card_writer.py             | 7 +++++++
 insta-lab/app/test_card_writer_prompt.py | 9 +++++++++
 2 files changed, 16 insertions(+)
 create mode 100644 insta-lab/app/test_card_writer_prompt.py

diff --git a/insta-lab/app/card_writer.py b/insta-lab/app/card_writer.py
index a763e5f..b8e3e7c 100644
--- a/insta-lab/app/card_writer.py
+++ b/insta-lab/app/card_writer.py
@@ -35,6 +35,13 @@ DEFAULT_PROMPT = """너는 인스타그램 카드 뉴스 카피라이터다.
   "suggested_caption": "<인스타 캡션 본문>",
   "hashtags": ["#태그1", "#태그2", ...]
 }}
+
+[글자수 제약 — 카드 디자인 박스에 맞게 반드시 준수]
+- cover_copy.headline: 22자 이내
+- body_copies[].headline: 26자 이내
+- body_copies[].body: 120자 이내 (2~4문장)
+- cta_copy.headline: 22자 이내
+초과하면 잘리므로 간결하고 임팩트 있게 작성한다.
 """
 
 
diff --git a/insta-lab/app/test_card_writer_prompt.py b/insta-lab/app/test_card_writer_prompt.py
new file mode 100644
index 0000000..0ed70b6
--- /dev/null
+++ b/insta-lab/app/test_card_writer_prompt.py
@@ -0,0 +1,9 @@
+from app import card_writer
+
+
+def test_default_prompt_has_length_guidance():
+    p = card_writer.DEFAULT_PROMPT
+    # 글자수 가이드가 프롬프트에 포함됐는지
+    assert "22자" in p and "120자" in p
+    # 포맷 placeholder는 유지
+    assert "{category}" in p and "{keyword}" in p and "{articles}" in p