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AllThingsSmitty

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• 26 skills
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• 5 hours ago last updated

1. ▌
   Dotnet Testing · allthingssmitty bundle

   .NET testing advisor. Always use this skill when writing tests in C#, working with xUnit, NUnit, MSTest, Moq, NSubstitute, FluentAssertions, or WebApplicationFactory. Use when the user asks "how do I mock an interface in C#", "mock interface vs concrete class", "how do I test an ASP.NET Core controller", "WebApplicationFactory integration test", "how do I write FluentAssertions", "how do I parametrize tests in C#", or "how do I verify a method was called". Read this skill before writing any .NET test.
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   Go Concurrency · allthingssmitty bundle

   Always use this skill when working with goroutines, channels, context, sync primitives, or concurrent Go code. Triggers include: "goroutine leak", "channel deadlock", "context cancellation", "how do I use WaitGroup", "fan-out fan-in", "worker pool", "data race", "select statement", "buffered channel", "sync.Mutex", "sync.Once", "context.WithTimeout", "goroutine exits", "channel close", "race condition", "concurrent map write". Read this skill before advising on any Go concurrency question.
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   API Design · allthingssmitty bundle

   Review or design REST and GraphQL APIs for correctness, consistency, and evolvability. Always use this skill when designing a new API, reviewing an existing one, choosing HTTP verbs, designing URL structure, defining error response shapes, thinking through versioning, or writing OpenAPI/Swagger specs. Use when the user says "review this API", "how should I model this resource", "is this endpoint design right", "should I use PUT or PATCH", "is this breaking", or "how should errors look". Use even when the question seems simple.
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   Dotnet Ops · allthingssmitty bundle

   Production .NET operations advisor. Always use this skill when deploying or operating ASP.NET Core applications, configuring Kestrel, IHostedService, BackgroundService, health checks, graceful shutdown, SIGTERM, structured logging, or IOptions validation. Use when the user asks "graceful shutdown in ASP.NET Core", "BackgroundService exception handling", "IOptions eager validation", "health checks in .NET", "structured logging with Serilog", "SIGTERM in .NET", or "run background work in .NET". Read this skill before advising on any .NET production or deployment topic.
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5. ▌
   Go Testing · allthingssmitty bundle

   Go testing advisor. Always use this skill when writing Go tests, working with the testing package, table-driven tests, subtests, benchmarks, testify, or interface mocking. Use when the user asks 'how do I write a table-driven test', 'how do I mock in Go', 'how do I benchmark this', 'how do I test this HTTP handler', 'how do I use t.Run', 'testify assert vs require', or 'how do I test a function that calls an external service'. Read this skill before writing any Go test.
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6. ▌
   Node Async · allthingssmitty bundle

   Node.js async patterns advisor. Always use this skill when working with async/await, Promises, the event loop, streams, backpressure, callbacks, or concurrent operations in Node.js. Use when the user asks about unhandled promise rejections, blocking the event loop, Promise.all vs Promise.allSettled, slow Node.js under load, stream backpressure, or says "my Node app lags under load", "event loop is blocked", "how do I implement backpressure", "unhandled promise rejection", or "concurrent requests". Read this before debugging any Node.js async or concurrency issue.
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   Py Testing · allthingssmitty bundle

   Python testing advisor. Always use this skill when writing Python tests, working with pytest, fixtures, conftest, mocking, patching, or parametrize. Use when the user asks "how do I mock this in Python", "how do I patch a function", "where should I patch", "why isn't my patch working", "how do I parametrize tests", "how do I test async Python code", "how do I use fixtures", or "pytest conftest". Read this skill before writing any Python test or debugging a failing mock or patch.
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   TS Testing · allthingssmitty bundle

   TypeScript testing advisor. Always use this skill when writing tests in TypeScript, setting up Jest or Vitest with TypeScript, creating type-safe mocks, or writing type-level tests. Use when the user asks "how do I mock this in TypeScript", "my mock has the wrong type", "how do I test that a type is correct", "jest.fn doesn't match my interface", "how do I set up Jest with TypeScript", "how do I avoid as any in tests", or "how do I write a type-level test". Read this skill before writing any TypeScript tests or mocks.
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9. ▌
   Arch Review · allthingssmitty bundle

   Review distributed systems architecture for correctness, resilience, and operability. Always use this skill when designing or reviewing service architectures, splitting a monolith, thinking through service boundaries, failure modes, data ownership, consistency tradeoffs, message queues, or event-driven designs. Use when the user says "review this architecture", "is this design sound", "what could go wrong", "how should these services communicate", "will this scale", "what are the failure modes", or "we're moving to microservices". Read this before recommending any architectural change.
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10. ▌
    Dotnet Async · allthingssmitty bundle

    C# async/await patterns advisor. Always use this skill when working with async/await in C#, Task, ValueTask, CancellationToken, ConfigureAwait, or deadlocks. Use when the user asks "why is my async code deadlocking", ".Result causing deadlock", "ConfigureAwait(false)", "async void vs async Task", "when to use ValueTask", "how do I cancel an async operation", "thread CancellationToken through async chain", or "can I call async from sync in C#". Read this skill before advising on any C# async or Task question.
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    Dotnet Types · allthingssmitty bundle

    C# and .NET type system advisor. Always use this skill when working with C# nullable reference types, records, pattern matching, switch expressions, generics, value types, or sealed classes. Use when the user asks "how do I handle nulls in C#", "record vs class", "how do I use pattern matching", "CS8600 nullable warning", "how do I enable nullable reference types", "sealed class hierarchy", "switch expression in C#", "struct vs class", or "how do I constrain a generic in C#". Read this skill before answering any C# type system question.
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    Perf · allthingssmitty bundle

    Identify and fix performance bottlenecks in applications and services. Always use this skill when investigating slow requests, high latency, memory pressure, CPU usage, cache misses, N+1 queries, or when profiling or benchmarking. Use when the user says "this is slow", "help me optimize this", "why is this taking so long", "response times are too high", "high CPU/memory", "I want to add caching", "how do I detect N+1 queries", or any request to find and fix a bottleneck. Do not recommend optimizations without reading this skill first.
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    Debug · allthingssmitty bundle

    Systematic debugging assistant. Always use this skill when investigating a bug, error, crash, unexpected behavior, or failing test — even for seemingly simple issues. Use when the user says "it's broken", "this doesn't work", "I'm getting a weird error", "why is this failing", "help me figure out why X happens", "I'm getting a TypeError/NullPointerException/500 error", or any time the root cause is unknown. Do not attempt to fix code without first reading this skill — frame the problem, form a hypothesis, and narrow scope before touching anything.
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14. ▌
    Go Ops · allthingssmitty bundle

    Production Go operations advisor. Always use this skill when deploying or operating Go applications, handling graceful shutdown, signal handling, health checks, structured logging, profiling with pprof, or managing configuration. Use when the user asks 'how do I handle SIGTERM in Go', 'graceful shutdown in Go', 'how do I add health checks', 'how do I profile a Go service', 'structured logging in Go', 'slog vs zerolog vs zap', 'how do I read config from env vars', or 'Go kubernetes'. Read this skill before advising on any Go production or deployment topic.
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    Py Ops · allthingssmitty bundle

    Production Python operations advisor. Always use this skill when deploying or operating Python web apps, choosing between WSGI and ASGI, configuring gunicorn or uvicorn, handling graceful shutdown, SIGTERM, config validation, or health checks. Use when the user asks "gunicorn vs uvicorn", "how many workers should I use", "how do I handle SIGTERM in Python", "graceful shutdown in Django or FastAPI", "validate env vars at startup", "my Python app leaks memory", or "WSGI vs ASGI". Read this before advising on any Python production or deployment question.
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    Pr Prep · allthingssmitty bundle

    Pre-pull-request review and readiness check. Always use this skill before opening a PR, reviewing a diff, writing a PR description, or checking if changes are ready to merge. Use when the user says "help me prep this PR", "is this ready to merge?", "review my changes before I submit", "check my diff", "write a PR description", "what's the blast radius of this change", or any time changes are being packaged for review. Do not skip this skill when any PR-related task is requested.
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    Go Types · allthingssmitty bundle

    Go type system advisor. Always use this skill when designing Go interfaces, working with structs and embedding, using generics, performing type assertions or type switches, defining custom error types, choosing between named types and aliases, or thinking about zero values. Use when the user says "how do I type this in Go", "when should I use an interface", "should I embed or compose", "how do I write a generic function", "how do I assert a type", "how do I wrap an error", "named type vs type alias", or "is my interface too big". Read this skill before answering any Go type system question.
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18. ▌
    Incident · allthingssmitty bundle

    Guide incident response for production outages, degradations, and failures. Always use this skill when a production system is down or degraded, an alert fired, users are impacted, or when the user says "we have an incident", "production is down", "the site is down", "errors are spiking", "PagerDuty fired", "help me triage this", "what's the blast radius", or when walking through a post-mortem. Also use when designing runbooks or on-call procedures. Use immediately — do not attempt to triage without reading this skill first.
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19. ▌
    Node Ops · allthingssmitty bundle

    Production Node.js operations advisor. Always use this skill when deploying or operating Node.js applications, handling graceful shutdown, SIGTERM, clustering, memory leaks, health checks, readiness probes, uncaught exceptions, or process management. Use when the user asks "how do I handle SIGTERM in Node.js", "graceful shutdown in Express", "how do I add health checks or readiness probes", "my Node app crashes and restarts", "uncaught exception handler", "should I use cluster mode", or "Node.js kubernetes". Read this before advising on any Node.js production or deployment topic.
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20. ▌
    Py Async · allthingssmitty bundle

    Python async patterns advisor. Always use this skill when working with asyncio, async/await, the Python event loop, aiohttp, FastAPI, or Celery. Use when the user asks about blocking calls in async context, asyncio.gather, run_in_executor, bridging sync and async, or says "blocking in my async function", "requests.get in async endpoint", "my FastAPI endpoint is slow", "how do I run tasks concurrently in Python", "asyncio.run vs get_event_loop", or "celery and asyncio". Read this before advising on any Python async or concurrency question.
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21. ▌
    Py Types · allthingssmitty bundle

    Python type system advisor. Always use this skill when working with Python type hints, mypy, Protocol, TypedDict, dataclasses, or generics. Use when the user asks "how do I type this in Python", "mypy is complaining", "should I use TypedDict or dataclass", "how do I type a dict", "what's Optional", "how do I make a generic class", "Protocol vs ABC vs TypedDict", "how do I annotate a function that returns X or Y", or "how do I avoid Any". Read this skill before answering any Python type annotation question.
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22. ▌
    Refactor · allthingssmitty bundle

    Guide safe, disciplined code refactoring. Always use this skill when asked to refactor, restructure, reorganize, clean up, or improve the design of existing code. Use when the user says "this code is messy", "help me clean this up", "this function does too much", "extract this", "break this apart", "this is hard to read", "the codebase is tangled", or any time code structure needs to change without changing behavior. Read this skill before making any structural code changes.
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23. ▌
    Security · allthingssmitty bundle

    Security review for code, APIs, and system designs. Always use this skill when reviewing code for vulnerabilities, auditing authentication or authorization, evaluating input handling, checking for secrets or hardcoded credentials, reviewing dependencies, or threat modeling. Use when the user says "is this secure", "review this for security issues", "could this be exploited", "check for vulnerabilities", "threat model this", "review for SQL injection", "is this JWT implementation safe", or "is my auth correct". Also use proactively when implementing auth, handling untrusted input, or storing sensitive data.
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    Test Gen · allthingssmitty bundle

    Generate high-quality tests for existing or new code. Always use this skill when asked to write tests, add test coverage, or generate any kind of test — unit, integration, or end-to-end. Use when the user says "write tests for this", "add coverage", "test this function/class/module/endpoint", "generate unit tests", or when a PR or feature is missing test coverage. Read this skill before writing a single test case.
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    TS Types · allthingssmitty bundle

    TypeScript type system advisor. Always use this skill when designing TypeScript types, working with generics, narrowing union types, building discriminated unions, using utility types, or avoiding any. Use when the user says "how do I type this", "why is TypeScript complaining", "object is possibly null", "how do I narrow this", "how do I make this generic", "what's the right type for X", "how do I model this as a union type", or "how do I constrain a generic". Read this skill before answering any TypeScript type question.
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    DB Review · allthingssmitty bundle

    Review database schemas, queries, and migrations for correctness, performance, and safety. Always use this skill when designing a schema, writing or optimizing a query, planning a migration, choosing indexes, or when the user asks about query performance, index strategy, ALTER TABLE safety, migration locking, composite indexes, or says "review this schema", "is this query efficient", "is this migration safe", "will this lock the table", "what index should I add", or "help me design this table". Read this skill before recommending any schema change or index.
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