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Unit testing patterns with xUnit, Moq, and FluentAssertions including AAA pattern, naming conventions, mocking, and edge case coverage. Use when writing or reviewing unit tests.

FastAPI patterns for API design. Use when creating endpoints, handling dependencies, error handling, or working with OpenAPI schemas.

Creates comprehensive GitHub project documentation including README, CONTRIBUTING, CODE_OF_CONDUCT, CHANGELOG, architecture docs, and API documentation. Analyzes codebase to generate accurate, well-styled documentation with modern GitHub aesthetics. Use when setting up a new project, improving existing documentation, or generating missing docs.

Manage multilingual content for JSON messages and MDX files. Use when adding new UI strings, translating blog posts, creating multilingual pages, or updating content across locales (pt-BR, es, ja, fr).

Automates updating mistralai_dart when Mistral AI OpenAPI spec changes. Fetches latest spec, compares against current, generates changelogs and prioritized implementation plans. Use for: (1) Checking for API updates, (2) Generating implementation plans for spec changes, (3) Creating new models/endpoints from spec, (4) Syncing local spec with upstream. Triggers: "update api", "sync openapi", "new endpoints", "api changes", "check for updates", "update spec", "api version", "fetch spec", "compare spec", "what changed in the api", "implementation plan".

Table-driven tests, mocking strategies, and comprehensive testing patterns. Use when writing tests.

Use when receiving code review feedback (especially if unclear or technically questionable), when completing tasks or major features requiring review before proceeding, or before making any completion/success claims. Covers three practices - receiving feedback with technical rigor over performative agreement, requesting reviews via code-reviewer subagent, and verification gates requiring evidence before any status claims. Essential for subagent-driven development, pull requests, and preventing false completion claims.

Creates feature specifications capturing requirements and acceptance criteria. Use when writing specs, documenting features, or defining requirements.

Create detailed implementation plans with bite-sized tasks for engineers with zero codebase context. Use this when design is complete and you need detailed implementation tasks for engineers with zero codebase context

Best practices AutoHotkey v2. Use when writing AHK v2 scripts - covers global variable declarations, SetTimer usage, event handlers, and GUI positioning.

Complete CRUD for SDLC documentation (stories, tasks, context retrieval). Use when creating/managing stories, creating/managing tasks, updating task state, or retrieving full context for any user story via index (<3min restoration).

Create and add UI elements with Tailwind CSS v3 using best practices. Automatically fetches up-to-date Tailwind documentation via Context7 MCP. Use when building new UI components, forms, layouts, or modifying existing interface elements.

"""Best practices and patterns for writing idiomatic Rust code.

Utility scripts directory configuration (/scripts) for MetaSaver monorepos including setup automation, environment management, and cross-platform support. Includes 4 critical standards (setup scripts, cross-platform support, error handling, documentation). Use when creating or auditing /scripts directory with Node.js and shell utility scripts.

Gates expensive external research (perplexity deep_research) while allowing quick lookups. Enforces knowledge priority - local documentation and project patterns first, external research only when necessary. Permissive mode allows context7, local-rag, and quick perplexity searches. (project)

Use when writing background jobs or async operations - enforces thin job wrappers (3-5 lines) that delegate to models using _later/_now naming pattern

Use when implementing any feature or bugfix, before writing implementation code - write the test first, watch it fail, write minimal code to pass; ensures tests actually verify behavior by requiring failure first

Create professional diagrams using Mermaid or DOT/Graphviz. Mermaid for flowcharts, sequences, classes, ER, Gantt, architecture with semantic coloring and WCAG AA accessibility. DOT/Graphviz for pure network graphs, semantic webs, and maximum layout control.

Suggest wikilinks for current note using Flywheel MCP. Triggers on "suggest links", "link suggestions", "what should I link", "wikilink suggestions".

Works with PostgreSQL including queries, migrations, indexes, and performance tuning. Use when designing database schemas, writing SQL queries, optimizing performance, or managing PostgreSQL databases.