gehtsoft-usa

Guide for working with the Gehtsoft.EF .NET ORM library — defining entities, querying data, managing schemas, and writing tests. Use this skill whenever the project references Gehtsoft.EF packages, or the user works with classes annotated with [Entity], [AutoId], [EntityProperty], [ForeignKey], or mentions SqlDbConnection, EntityQuery, CreateEntityController, GenericEntityAccessor, SelectEntitiesQuery, or any Gehtsoft.EF API. Also trigger when the user asks about data access code in a project that already uses Gehtsoft.EF, even if they don't name the library explicitly.

Migrate .NET test projects from xUnit v2 to xUnit v3 (xunit.v3 packages). Use this skill whenever the user asks to migrate, upgrade, or convert tests to xUnit v3 / xunit.v3, mentions the xUnit v2-to-v3 migration, or asks to modernize the xUnit test stack — even if they only say "upgrade xunit" or "move to the new xunit". Also use it to assess how much work an xUnit v3 migration would be for a solution.

Analyze .NET unit test code coverage from dotnet-coverage XML files. Use this skill whenever the user mentions code coverage, test coverage, coverage gaps, coverage reports, dotnet-coverage, .coverage files, or wants to improve test coverage for .NET/C# projects. Also trigger when the user has coverage.xml files, wants to collect coverage for a .NET solution, or asks what a specific test covers. Even if the user just says 'coverage' in the context of a .NET project, use this skill.

Measurement-driven optimization loop for a specific function, algorithm, or pipeline. Given a target piece of code, generates a correctness test and a benchmark, presents both for user review listing exactly what is checked and how, and after approval iterates — one change at a time, keeping only improvements above the observed noise floor that reproduce on a second benchmark invocation and preserve correctness against an immutable oracle, logging every experiment including discards. Supports two modes — interactive co-drive, or autonomous long-running (8–12h default) with an upfront session charter, silent loop, web-search-driven hypothesis generation, and hard-blocker-only escalation. Trigger when the user asks to optimize, speed up, reduce memory of, or benchmark a specific piece of code, requests an overnight or long unattended optimization run, or invokes /claude-optimizer-skill.

Compile a C# LambdaExpression into an equivalent JavaScript expression with Gehtsoft.ExpressionToJs, so one validation rule runs on both the server (compiled delegate) and the browser (emitted JS). Use when code references the Gehtsoft.ExpressionToJs namespace, ExpressionCompiler, ExpressionToJsStubAccessor, the Functions helpers (YearsSince, IsCreditCardNumberCorrect, ToBool, ...), DateTimeMode, or the IJsMethodRegistry/IJsConstantRegistry/IJsMemberRegistry/IJsParameterRegistry extension interfaces; or when emitting or hosting jsv_* helpers / stub.js.

Guide for working with the Gehtsoft.EF .NET ORM library — defining entities, querying data, managing schemas, and writing tests. Use this skill whenever the project references Gehtsoft.EF packages, or the user works with classes annotated with [Entity], [AutoId], [EntityProperty], [ForeignKey], or mentions SqlDbConnection, EntityQuery, CreateEntityController, GenericEntityAccessor, SelectEntitiesQuery, or any Gehtsoft.EF API. Also trigger when the user asks about data access code in a project that already uses Gehtsoft.EF, even if they don't name the library explicitly.