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The world of Optical Character Recognition (OCR) has seen significant advancements, but challenges persist when dealing with complex, multi-page, or lengthy documents. Traditional OCR often struggles with maintaining
This article guides developers through building Command Line Interface (CLI) tools with Dart. It covers the fundamental anatomy of CLI commands, Dart's core mechanisms for processing terminal input, and essential `dart:io` concepts like `stdout`, `stderr`, exit codes, file operations, and running external processes. The piece also introduces the `args` package for streamlined argument parsing, empowering developers to create robust, automatable, and publishable developer tools.
This guide details building a reliable personal financial assistant using the Model Context Protocol (MCP) and a "Narrator" architectural pattern. By separating deterministic data computation in Python from LLM narration, the system ensures factual accuracy, reduces hallucinations, and provides auditable, data-backed financial insights. It covers MCP client wrappers, budget enforcement, simple request parsing, and precise metric calculation.
