dotnet Claude Kit

Expert in designing HTTP APIs with ASP.NET Core Minimal APIs — REST conventions, endpoint and contract design, API versioning strategies, OpenAPI specifications, and authorization policies. Use when designing new endpoints or request/response shapes, adding or evolving API versions, reviewing API surface quality, or producing OpenAPI documentation.

Autonomous .NET build fixer — parses dotnet build errors, categorizes them, applies known fix patterns, and rebuilds iteratively until green. Use when the build is broken, after a large refactor or dependency update, or whenever compiler errors need systematic resolution without hand-holding.

Multi-dimensional .NET code review covering correctness, maintainability, performance, security, and project conventions, powered by Roslyn MCP analysis. Use for PR reviews, pre-merge quality gates, reviewing recent changes, or any "review this code" request.

Deployment and infrastructure expert for .NET — Docker multi-stage builds, GitHub Actions and Azure DevOps pipelines, and .NET Aspire orchestration. Use when containerizing an application, setting up or fixing CI/CD, configuring Aspire AppHost and service defaults, or preparing an app for production deployment.

Primary decision-maker for .NET project structure, architecture selection, and module boundaries — guides the architecture-advisor questionnaire and recommends VSA, Clean Architecture, DDD, or Modular Monolith. Use when starting a new project, choosing or changing architecture, restructuring a solution, or resolving module boundary and dependency questions.

Error handling strategy for .NET 10 applications. Covers the Result pattern, ProblemDetails (RFC 9457), global exception handling, FluentValidation, and structured error responses. Load this skill when implementing error handling, validation, or designing API error contracts, or when the user mentions "error handling", "Result pattern", "ProblemDetails", "exception", "validation", "FluentValidation", "error response", "global exception handler", or "RFC 9457".

Multi-dimensional health assessment for .NET projects with letter grades (A-F) using Roslyn MCP tools. Evaluates 8 dimensions: build health, code quality, architecture, test coverage, dead code, API surface, security posture, and documentation. Produces a structured report card with actionable recommendations. Load this skill when: "health check", "how healthy is this", "project health", "code quality report", "grade this project", "assess codebase", "quality audit", "technical assessment", "codebase review", "report card".

IHttpClientFactory and typed HTTP clients for .NET 10 applications. Covers named/typed/keyed clients, DelegatingHandlers, resilience with Microsoft.Extensions.Http.Resilience, and testing patterns. Load this skill when configuring HTTP clients, adding retry/circuit breaker policies, or when the user mentions "HttpClient", "IHttpClientFactory", "AddHttpClient", "typed client", "named client", "DelegatingHandler", "resilience", "retry", "circuit breaker", "hedging", "Polly", "AddStandardResilienceHandler", "socket exhaustion", or "Refit".

Unified learning-and-memory system: confidence-scored instincts (observe-hypothesize-confirm, stored in .claude/instincts.md), user corrections captured as permanent rules in MEMORY.md, and organic discoveries logged to .claude/learning-log.md. Includes status, export, and import modes. Load this skill when you notice a recurring pattern, a user corrects your output, or you discover something non-obvious. Triggers: "show instincts", "what have you learned", "list instincts", "export instincts", "share instincts", "import instincts", "load instincts from", "learn this", "I think they always", "notice a pattern", "instinct", "hypothesis", "confidence", "learn from mistakes", "remember this", "don't do that again", "log this", "document this finding", "gotcha", "what did we learn", "learnings", "discoveries", or at session start (to load existing knowledge).

Observability overview and glue for .NET 10: how the pieces fit together, plus the cross-cutting parts owned here — ASP.NET health check endpoints (/health), correlation IDs, and log-level strategy. For deep Serilog setup load `serilog`; for traces and metrics load `opentelemetry`. Load this skill when setting up observability from scratch, wiring health check endpoints or correlation IDs, or when the user says "logging", "observability", "monitoring setup", "liveness", "readiness", or "ILogger".

3 hooks across 2 events