Trellis Service Level Indicators for .NET: Complete NuGet Guide

EF Core vs SQL Project: Catch Database Schema Drift in CI (No Database Required)

Build a Real .NET Service with AI — a Guided Lab (Read It, Run It, Review It)

Can an AI Build a Whole C# Service From a Spec? (A 57-Criteria Benchmark)

Testing a C# Service Properly: The Pyramid, Failure Paths, and Proving Invariants

The Transactional Outbox and Idempotent Inbox in C# (Exactly-Once, For Real)

Authorization in C#: RBAC, Resource Ownership, and the Matrix to Draw First

Cursor Pagination and Conditional GET in C#: Bounded Reads That Scale

Concurrency and Idempotency in a C# API: If-Match, ETags, Idempotency-Key

Modeling a Domain in C#: Value Objects, Aggregates, and a State Machine

How to Read a Spec Like a Senior Engineer (Ubiquitous Language in C#)

Value Objects in C#: Validate on Construction, Equality & Immutability

Run Your Whole .NET Microservices System with One Command (Aspire Orchestration)

Idempotent Consumers and Read Models in .NET (Inbox, Dedup, Eventual Consistency)

The Outbox Pattern in .NET: Reliable Events After Commit (Eventual Consistency)

Resource Authorization Across Service Hops in .NET (Authorize via a Related Owner)

Deny Overrides Allow: Defending a Distributed Auth Contract (.NET Microservices)

Multi-Tenancy Done Right in .NET: Tenant Isolation, ABAC, and Hiding Existence

Rotate JWT Signing Keys with Zero Downtime (JWKS and Overlap in .NET)

Minting Internal JWTs at the API Gateway (.NET Microservices with YARP)

Trust Boundaries in Microservices: Where Should Your .NET Services Re-Authenticate?

Mutation Testing in C# with Stryker.NET: Why 100% Coverage Lies (and Testing AI's Tests)

Write and Test a Custom Roslyn Analyzer in C#: Enforce Your Own Architecture Rules

Consumer-Driven Contract Testing in C# with PactNet: Stop Breaking Your Consumers

Testing Data for Real in C#: USE_REAL_SERVICES, Testcontainers (Postgres) and the Outbox

Testing Observability in C#: Assert Spans, the SLI Metric and SLOs (OpenTelemetry)

Testing Authorization in C#: RBAC, ABAC, and 403 vs 404 (Hide Existence)

Testing HTTP in C#: Problem Details (RFC 9457), Status Codes, ETags and Snapshot Tests

Integration Testing ASP.NET Core with WebApplicationFactory: POST then GET, In-Memory

Kill Flaky Tests in C#: Freeze Time, Seam Identity, Build Clean Data

Testing DDD Aggregates in C#: Invariants as Failures and Asserting Domain Events

Property-Based Testing in C# with CsCheck: Prove Your Value Objects Are Total

Testing Railway-Oriented Pipelines in C#: Short-Circuit vs Accumulate

Unit-Testing C# Value Objects: Asserting Result Without Exceptions

Test-Driven Development in C#: Red, Green, Refactor (on a Real Value Object)

The Testing Pyramid Explained for C# Developers: Unit, Integration and Manual (with a Real Run)

Service Level Indicators in C#: One Latency Metric That Drives Your SLOs (Trellis)

OpenTelemetry in C#: Trace Every Request End to End with Handler and Value-Object Spans (Trellis)

The Transactional Outbox in C#: Never Lose an Event (Atomic State and Events with EF Core, Trellis)

EF Core Value Objects in C# Without OwnsOne: Trellis Conventions, Owned Types and ETag Concurrency

403 vs 404 in C#: Hide Existence So a Forbidden Never Leaks That a Resource Exists (Trellis)

RBAC vs ABAC in C#: Permissions, Attributes and Multi-Tenant Isolation on One Actor (Trellis)

Authentication vs Authorization in C#: Who You Are vs What You May Do (Trellis)

Mediator Pipeline Behaviors in C#: The Canonical Order That Guards Every Handler (Trellis)

CQRS in C# Without the Ceremony: Commands, Queries and the Mediator (Trellis)

Clean Architecture in C#: Domain at the Center, Dependencies Pointing Inward (Trellis)

Field-Level Validation Errors in C# (RFC 6901): Point Clients at the Exact Bad Field

The Principle of Least Astonishment in C#: Build HTTP APIs That Don't Surprise Your Clients

Rate Limiting in C#: The Right Way to Return 429 Too Many Requests with Retry-After

C# API Versioning Without Breaking Clients: Asp.Versioning by Namespace, Trellis Guardrails

Cursor Pagination in C# (RFC 8288): Stable Paging That Never Skips or Repeats a Row

Idempotency-Key in C#: Make POST Retry-Safe and Never Create a Duplicate

The Prefer Header in C# (RFC 7240): Let Clients Choose 204 or the Full Body on Writes

Conditional GET in C# (RFC 9110): Save Bandwidth with ETags, If-None-Match & Cache-Control

ETags & If-Match in C# (RFC 9110): Stop Lost Updates with Optimistic Concurrency

HTTP Status Codes That Mean Something in C#: A Semantic Error Catalog

Problem Details in C# (RFC 9457): One Standard Error Shape for Your API

YAGNI in C#: Stop Building for an Imagined Future (Speculative Generality)

The Anti-Corruption Layer Pattern in C#: Keep External Models Out of Your Domain

State Machines in C# That Return Result: Make Illegal Transitions Impossible