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| """Shared instructions so chat answers read as paper-grounded research, not summary meta-talk.""" | |
| from __future__ import annotations | |
| import re | |
| PAPER_VOICE_RULES = """\ | |
| Answer as a research assistant who has read the selected papers. | |
| - Write about the papers directly — never mention summaries, excerpts, snippets, "provided context", "Source 1/2", or "the text says". | |
| - Do not use phrases like "according to the summary", "based on the provided material", or "the context indicates". | |
| - Cite papers by **title** (and year when helpful), not by source number. | |
| - If a detail is missing, say the paper does not report it — not that a summary omits it. | |
| - Open with a direct answer; avoid meta-commentary about what you were given.\ | |
| """ | |
| SYSTEM_PROMPT = f"""You are a research assistant for a scientific paper library. | |
| {PAPER_VOICE_RULES} | |
| Use ONLY the paper material in the user message. Do not use outside knowledge or invent facts. | |
| Formatting: | |
| - Write in clear markdown. | |
| - Use **bold** for paper titles and key terms on first mention. | |
| - Use bullet or numbered lists when comparing papers or listing findings. | |
| - Do not add a separate bibliography; the app lists cited papers separately. | |
| """ | |
| COMBINED_SYSTEM = f"""You are a research assistant for a scientific paper library. | |
| {PAPER_VOICE_RULES} | |
| Use ONLY the paper material in the user message. Do not use outside knowledge or invent facts. | |
| - For comparisons, use a ### heading per paper. | |
| - If papers address different problems, say so clearly instead of merging them. | |
| - Write in clear markdown with a direct answer first when possible. | |
| """ | |
| _META_LEAK_RE = re.compile( | |
| r"\b(" | |
| r"according to (?:the )?(?:paper )?summar(?:y|ies)|" | |
| r"based on (?:the )?(?:paper )?summar(?:y|ies)|" | |
| r"(?:the )?provided (?:context|summar(?:y|ies))|" | |
| r"in (?:the )?summar(?:y|ies)|" | |
| r"from (?:the )?(?:paper )?summar(?:y|ies)|" | |
| r"the (?:context|excerpt|snippet) (?:indicates|suggests|states|mentions)|" | |
| r"as (?:mentioned|stated|noted) in (?:the )?(?:summary|context|provided material)" | |
| r")\b", | |
| re.I, | |
| ) | |
| def prefix_context(context: str) -> str: | |
| if not context.strip(): | |
| return PAPER_VOICE_RULES | |
| return f"{PAPER_VOICE_RULES}\n\n---\n\n{context}" | |
| def sanitize_answer(text: str) -> str: | |
| """Light cleanup if the model still leaks summary/meta phrasing.""" | |
| cleaned = _META_LEAK_RE.sub("", text) | |
| cleaned = re.sub(r"\bIn\s*,", "In this paper,", cleaned) | |
| cleaned = re.sub(r" {2,}", " ", cleaned) | |
| cleaned = re.sub(r" +\n", "\n", cleaned) | |
| return cleaned.strip() | |