Developer shares three real-world failures building a Claude-powered RSS digest bot

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A developer built an AI-powered feed monitor using Claude to filter Hacker News items and deliver a daily digest via Telegram, completing the initial build in roughly one afternoon. The tool fetches RSS items, scores them against user-defined interests, removes duplicates, and sends a short list of relevant links. However, running it against live data exposed three silent failures not caught during early testing. One critical bug caused the entire Telegram message to fail whenever a headline contained unbalanced Markdown characters like underscores or brackets, wasting API calls on every such run. The developer resolved this by dropping Markdown formatting entirely in favor of plain text, trading visual styling for reliable delivery.

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