Dev Tools · 1h ago
AI Bank Statement Converter Uses Balance Checks to Catch LLM Errors
A developer built StatementDecoder, an AI-first tool that converts bank statements to structured JSON. The LLM often made subtle errors in transactions, undermining trust. The fix was adding independent validation using balance reconciliation to catch mistakes before export.
Meridian48 take
A clever architectural lesson: don't trust LLMs to self-validate; use domain-specific invariants to catch hallucinations.
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I built an AI-first bank statement converter. The one rule that stopped it lying to me. →
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llm-validationbank-statement-parser