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    <title>Brett Chereskin — The Lab</title>
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    <description>Build-in-public engineering notes: AI-driven trading systems, backtests, and the technical experiments behind the writing.</description>
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    <lastBuildDate>Thu, 02 Jul 2026 05:27:08 GMT</lastBuildDate>
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      <title><![CDATA[Opus 4.8 Stress-Tested My Crypto Strategy. Then It Made Me Admit I Was Wrong.]]></title>
      <link>https://www.brettchereskin.com/blog/crypto-strategy-macro-gate-stress-test</link>
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      <description><![CDATA[Two months ago I published a backtest claiming my crypto strategy returned +35%. This week I sat down with Opus 4.8 to pressure-test that claim — and the honest answer was more humbling, more robust, and a better story than the one I'd told.]]></description>
      <pubDate>Mon, 29 Jun 2026 00:00:00 GMT</pubDate>
      <category><![CDATA[AI & Engineering]]></category>
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      <title><![CDATA[Rebuilding the Crypto Strategy: Opus 4.6 Shipped It. Opus 4.7 Fixed It.]]></title>
      <link>https://www.brettchereskin.com/blog/crypto-strategy-v2-overhaul</link>
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      <description><![CDATA[A 9-sell AVAX trim cascade exposed what my weekend build was missing. Here's how a real backtest, a regime detector, and one honest critique session turned a shippable-but-flawed strategy into one that actually beats buy-and-hold.]]></description>
      <pubDate>Fri, 17 Apr 2026 00:00:00 GMT</pubDate>
      <category><![CDATA[AI & Engineering]]></category>
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      <title><![CDATA[I Built an AI-Powered Crypto Trading System in One Afternoon]]></title>
      <link>https://www.brettchereskin.com/blog/ai-crypto-trading-system</link>
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      <description><![CDATA[I spent a Saturday afternoon connecting four AI data services into a single system that analyzes social sentiment, reads blockchain data, runs technical analysis, and executes real crypto trades on a paper account. No code. No API wrappers. Just Claude and a handful of MCP servers.]]></description>
      <pubDate>Sun, 12 Apr 2026 00:00:00 GMT</pubDate>
      <category><![CDATA[AI & Engineering]]></category>
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