Learn how to unit test C# processing pipeline behavior with deterministic checks for order, rejection, faults, cancellation, capacity, drain, and cleanup. Link to article: https://www.devleader.ca/2026/09/03/how-to-unit-test-a-c-processing-pipeline

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Specification Pattern DDD validation uses pure C# rules while structured results, request checks, and aggregate invariant enforcement stay clearly separate. Link to article: https://www.devleader.ca/2026/09/02/using-specifications-for-domain-rules-and-validation

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Learn how to register ordered pipeline stages with Microsoft DI, choose safe service lifetimes, create background scopes, and avoid captive dependencies. Link to article: https://www.devleader.ca/2026/08/30/register-pipeline-stages-with-net-dependency-injection

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Compare Specification, Repository, and Query Object in .NET, then place predicates, GoF patterns, validation, policies, and rules engines correctly in code. Link to article: https://www.devleader.ca/2026/08/29/specification-vs-repository-vs-query-object-in-net

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Welcome to another issue of Dev Leader Weekly! In this issue, I discuss accountability when projects slip and what engineering managers actually own. Link to article: https://www.devleader.ca/2026/08/29/when-a-developer-misses-the-deadline-who-owns-it-dev-leader-weekly-155

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This week covers hybrid search and semantic reranking for RAG in .NET, plus async and error-handling patterns for C# pipelines. The videos dig into AI agent evals, what developers retain when AI writes code, communication gaps, and manager accountability. Link to article: …

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