Observability in software development should prioritize error tracking over traditional logs, metrics, and traces, as exceptions provide the clearest indication of failures in the code. By focusing on capturing detailed context around errors, developers can gain invaluable insights that are often lost in the noise of standard observability practices. The author argues that the current approach to observability tends to downplay the importance of errors, which should be treated as first-class signals when diagnosing issues.

The blog post introduces Sentry's new feature, the MCP cursor, designed to enhance debugging by providing developers with smarter and more efficient ways to track and manage errors in their applications. It emphasizes the importance of context and historical data in improving error resolution and overall application performance. The MCP cursor aims to streamline the debugging process, making it easier for developers to identify and fix issues quickly.