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Solo developer details a self-built Bybit futures bot with LLM veto and safety checks

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A developer has built bybit-ws, a personal Bybit futures trading system that scans and scores candidates, sizes positions, and learns from closed trades. The write-up focuses less on the entry signal and more on the surrounding safeguards, such as handling LLM timeouts and zero-balance readings that cause the bot to halt trading. The architecture uses Python, asyncio, SQLite in WAL mode, a systemd unit, and an agent layer reachable through Telegram. Key design choices are that the exchange is not treated as the database, positions are reconciled across three sources, and the LLM acts only as a veto rather than choosing trades. The author notes that the system still has known broken parts and deliberately omits performance figures.

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