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Test email sending locally using Mailpit with .NET Aspire. Captures all outgoing emails without sending them. View rendered HTML, inspect headers, and verify delivery in integration tests.
Entity Framework Core best practices including NoTracking by default, query splitting for navigation collections, migration management, dedicated migration services, and common pitfalls to avoid.
Microsoft.Extensions.Options patterns including IValidateOptions, strongly-typed settings, validation on startup, and the Options pattern for clean configuration management.
Design .NET types for performance. Seal classes, use readonly structs, prefer static pure functions, avoid premature enumeration, and choose the right collection types.
Code organization patterns and TypeScript best practices for Convex. Use when structuring a Convex project, writing helper functions, defining schemas, working with types like QueryCtx/MutationCtx/Act…
Repository pattern: protocol-based data access, DTO-to-domain mapping, and clean layer separation. Use when implementing app features related to repositories.
Load when user says "validate skill", "validate this skill", "review skill execution", "check skill", or "skill validation" at the end of executing a skill. Post-execution review workflow for validati…
Analyze current agent for Trinity platform compatibility. Use when checking if an agent meets Trinity requirements, preparing for deployment, or auditing agent structure.
Database access patterns for performance. Separate read/write models, avoid N+1 queries, use AsNoTracking, apply row limits, and never do application-side joins. Works with EF Core and Dapper.
Analyze code coverage and CRAP (Change Risk Anti-Patterns) scores to identify high-risk code. Use OpenCover format with ReportGenerator for Risk Hotspots showing cyclomatic complexity and untested cod…
Write UI tests for Blazor applications (Server or WebAssembly) using Playwright. Covers navigation, interaction, authentication, selectors, and common Blazor-specific patterns.
Use Verify for snapshot testing in .NET. Approve API surfaces, HTTP responses, rendered emails, and serialized outputs. Detect unintended changes through human-reviewed baseline files.
Database migrations and schema evolution in Convex. Use when adding new fields, changing data structures, backfilling data, renaming fields, or performing zero-downtime schema changes.
Targeted recovery workflow for unresolved planned files after the first build pass. Use when only a subset of planned files is missing or invalid.
Validate workspace-map.md accuracy against actual 04-workspace/ structure (3 levels deep). Load when user says "validate workspace map", "update workspace map", "check workspace map", or from close-se…
ALWAYS use when diagnosing Ably issues — messages not arriving, presence not updating, connection failures, auth errors (40101, 40142, 40160), channel lifecycle problems, push notification issues, Cha…
Write modern, high-performance C# code using records, pattern matching, value objects, async/await, Span<T>/Memory<T>, and best-practice API design patterns. Emphasizes functional-style programming wi…
Organize DI registrations using IServiceCollection extension methods. Group related services into composable Add* methods for clean Program.cs and reusable configuration in tests.
Use Slopwatch to detect LLM reward hacking in .NET code changes. Run after every code modification to catch disabled tests, suppressed warnings, empty catch blocks, and other shortcuts that mask real …
Snapshot test email templates using Verify to catch regressions. Validates rendered HTML output matches approved baseline. Works with MJML templates and any email renderer.
Manage Git branches and pull requests using git-spice (gs). Use when user says "/gs", "create branch", "new branch", "switch branch", "checkout branch", "rebase branch", "update branch from main", "cr…
Debug failed/issue tasks from Beam.ai using Langfuse traces. Load when user says "debug issue tasks", "check failed tasks", "why did task fail", "task errors", "debug agent", or needs to investigate t…
Load when user says "validate docs", "check documentation consistency", "docs vs implementation", or "find documentation mismatches". Systematically compares implementation code against documentation …
Helps debug HYTOPIA SDK games. Use when users need performance monitoring, error handling, client debugging, or troubleshooting. Covers debug panels, ErrorHandler, browser dev tools, and server loggin…