Two failure modes addressed:
1. Soft/indirect bullish signals classified as 'mention' instead of 'bullish'
The prompt now explicitly lists casual English and Chinese expressions that
count as bullish/bearish (not mention):
- EN: 'looks interesting here', 'has room to run', 'wouldn't be short'
- ZH: '感觉还有空间', '可以关注', '这里不错', '有上涨空间'
mention is now reserved for ZERO directional lean (historical refs, neutral
examples). Previously the vague boundary caused the model to use mention
conservatively, losing real signals.
2. Category-level calls lost when no specific ticker named
'memecoin season', 'memes look good', '梗币最近不错' had no ticker to attach
to. Added synthetic tickers: MEME, ALTCOIN, DEFI, AI — the model uses these
when the view is about the category, not a specific coin.
Normalizer allows synthetic tickers through the len>12 guard.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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