novotnyllc

Routes .NET/C# requests to the correct domain skill and loads coding standards as baseline for all code paths. Determines whether the task needs API, UI, testing, devops, tooling, or debugging guidance based on prompt analysis and project signals, then invokes skills in the right order. Always invoked after [skill:using-dotnet] detects .NET intent. Do not use for deep API, UI, testing, devops, tooling, or debugging implementation guidance.

Builds ASP.NET Core APIs, EF Core data access, gRPC, SignalR, and backend services with middleware, security (OAuth, JWT, OWASP), resilience, messaging, OpenAPI, .NET Aspire, Semantic Kernel, HybridCache, YARP reverse proxy, output caching, Office documents (Excel, Word, PowerPoint), PDF, and architecture patterns. Spans 32 topic areas. Do not use for UI rendering patterns or CI/CD pipeline authoring.

Baseline C# skill loaded for every .NET code path. Guides language patterns (records, pattern matching, primary constructors, C# 8-15), coding standards, async/await, DI, LINQ, serialization, domain modeling, concurrency, Roslyn analyzers, globalization, native interop (P/Invoke, LibraryImport, ComWrappers), WASM interop (JSImport/JSExport), and type design. Spans 25 topics. Do not use for ASP.NET endpoint architecture, UI framework patterns, or CI/CD guidance.

Debugs Windows and Linux/macOS applications (native, .NET/CLR, mixed-mode) with WinDbg MCP (crash dumps, !analyze, !syncblk, !dlk, !runaway, !dumpheap, !gcroot, BSOD), dotnet-dump, lldb with SOS, createdump, and container diagnostics (Docker, Kubernetes). Hang/deadlock diagnosis, high CPU triage, memory leak investigation, kernel debugging, and dotnet-monitor for production. Spans 17 topic areas. Do not use for routine .NET SDK profiling, benchmark design, or CI test debugging.

Configures .NET CI/CD pipelines (GitHub Actions with setup-dotnet, NuGet cache, reusable workflows; Azure DevOps with DotNetCoreCLI, templates, multi-stage), containerization (multi-stage Dockerfiles, Compose, rootless), packaging (NuGet authoring, source generators, MSIX signing), release management (NBGV, SemVer, changelogs, GitHub Releases), and observability (OpenTelemetry, health checks, structured logging, PII). Spans 18 topic areas. Do not use for application-layer API or UI implementation patterns.

Defines .NET test strategy and implementation patterns across xUnit v3 (Facts, Theories, fixtures, IAsyncLifetime), integration testing (WebApplicationFactory, Testcontainers), Aspire testing (DistributedApplicationTestingBuilder), snapshot testing (Verify, scrubbing), Playwright E2E browser automation, BenchmarkDotNet microbenchmarks, code coverage (Coverlet), mutation testing (Stryker.NET), UI testing (page objects, selectors), and AOT WASM test compilation. Spans 13 topic areas. Do not use for production API architecture or CI workflow authoring.

Manages .NET SDK installation (dotnet-install, workloads), project setup (.slnx, Directory.Build.props, CPM), MSBuild authoring, build optimization, performance (Span, ArrayPool, stackalloc), profiling (dotnet-counters, dotnet-trace), Native AOT/trimming, GC tuning, CLI apps (System.CommandLine, Spectre.Console, Terminal.Gui), ILSpy decompilation, VS Code debug config (launch.json, coreclr, remote), C# LSP (csharp-ls, OmniSharp), and version detection/upgrade. Spans 34 topic areas. Do not use for UI implementation or API security design.

Builds .NET UI apps across Blazor (Server, WASM, Hybrid, Auto), MAUI (XAML, MVVM, Shell, Native AOT), Uno Platform (MVUX, Extensions, Toolkit), WPF (.NET 8+, Fluent theme), WinUI 3 (Windows App SDK, MSIX, Mica/Acrylic, adaptive layout), and WinForms (high-DPI, dark mode) with JS interop, accessibility (SemanticProperties, ARIA), localization (.resx, RTL), platform bindings (Java.Interop, ObjCRuntime), and framework selection. Spans 20 topic areas. Do not use for backend API design or CI/CD pipelines.

Start and operate Codex Director. Use when the user mentions @codex-director, invokes $codex-director:codex-director, or asks to coordinate project work with Director threads.

Runs the Codex Director Browser ChatGPT Pro oracle lane for external second-opinion review through the signed-in browser. Use when a Director brief explicitly invokes $codex-director:director-browser-oracle for delegated oracle review, Pro-only comparison, external critique, or Browser-mediated plan/result validation.

Runs the Codex Director build lane for bounded implementation packets. Use when a Director worker brief explicitly invokes $codex-director:director-build for code, docs, configuration, tests, commits, or other implementation work that one worker can plan, edit, verify, and report.

Runs the Codex Director deep planning lane for durable implementation or architecture plans. Use when a Director worker brief explicitly invokes $codex-director:director-deep-plan for a plan document, migration strategy, architecture decision, decomposition, or reviewed implementation blueprint without code changes.

Runs the Codex Director dynamic workflow bridge for complex task-level packetization and durable orchestration artifacts. Use when a Director brief explicitly invokes $codex-director:director-dynamic-workflow for approvals, packets, multi-repo or multi-worker work, risky writes, integration tracking, or resumable .workflow state.

Runs the Codex Director investigate/research lane for read-only diagnosis and evidence gathering. Use when a Director worker brief explicitly invokes $codex-director:director-investigate for repo or docs reconnaissance, failure diagnosis, external fact checks, regression research, or current-state evidence.

Runs the Codex Director optimization lane for performance, cost, memory, bundle size, throughput, or latency work. Use when a Director worker brief explicitly invokes $codex-director:director-optimize for measurement-led improvement, bottleneck diagnosis, optimization patches, or performance verification.

Runs the Codex Director worker orchestration lane for multi-item or ambiguous bounded assignments. Use when a Director worker brief explicitly invokes $codex-director:director-orchestrate, or when a worker must coordinate subwork, helper/subagent lanes, sequencing, packet handoffs, or evidence reconciliation inside its assigned scope.

Use for Codex multi_agent_v2 subagent orchestration: delegation decisions, spawn_agent prompts, custom agent_type roles, reasoning_effort choices, safe parallelism, wait/list/send/followup/close handling, commit discipline, receipts, and root-thread coordination.

Build with RepoPrompt MCP tools context builder plan → implement

Deep planning workflow using RepoPrompt MCP tools: map seams, draft, critique, polish — produces a ready-to-execute plan document

Deep investigation with RepoPrompt MCP tools: tools gather evidence, follow-up reasoning synthesizes selected context

Iterative performance optimization loop using RepoPrompt MCP tools: instrument with debug-only metrics, establish a baseline, then plan → delegate one optimize+harden cycle → re-measure → ask oracle for next plan, looping until the oracle is satisfied or the target metric is met

Export a ChatGPT-ready Question / Plan / Review prompt using RepoPrompt MCP tools

Plan, decompose, and delegate complex tasks across multiple agents using RepoPrompt MCP tools

Refactoring assistant using RepoPrompt MCP tools to analyze and improve code organization

Browser automation setup and routing for Chrome and Microsoft Edge stable, beta, dev, and canary. Use when the user mentions @browser-control, @chrome-* or @edge-*, or asks for Chrome Dev, Chrome Canary, Edge Dev, or Edge Canary.

Babysit a GitHub pull request after creation by continuously polling review comments, CI checks/workflow runs, and mergeability state until the PR is merged/closed or user help is required. Diagnose failures, retry likely flaky failures up to 3 times, auto-fix/push branch-related issues when appropriate, and keep watching open PRs so fresh review feedback is surfaced promptly. Use when the user asks Codex to monitor a PR, watch CI, handle review comments, or keep an eye on failures and feedback on an open PR.