Postgres performance optimization and best practices. Use when writing or reviewing SQL queries, designing schemas, configuring connection pooling, fixing N+1 queries, creating indexes, implementing row-level security, diagnosing slow queries with EXPLAIN ANALYZE, or optimizing database performance. Postgres only …
Applies code-review feedback to the user's own pull request or merge request — triages every reviewer comment in a fresh subagent, drafts a fix or reply per item, and after the user approves the plan, edits, replies, resolves, commits, and pushes. Use when working through review feedback — "address the PR comments"…
Authors a human-voice code review of someone else's pull request or merge request and posts it as a draft (pending) review for the user's approval — "review this PR", "do a code review on PR #N", "review this MR", "leave review comments". Also reviews the user's own branch when the request says "review my branch"…
Pytest conventions for Python test suites — fixtures and scopes, parametrization, mocking with pytest-mock, built-in fixtures (tmppath, monkeypatch, capsys, caplog), markers, exception testing, and async tests. Use when writing, reviewing, or refactoring Python tests, conftest.py fixtures, or pytest configuration in…
Performance optimization for React applications — rendering, re-renders, data-fetching waterfalls, bundle size, and the JavaScript hot paths inside components. Use when the user mentions slow or janky renders, unnecessary re-renders, memoization (React.memo / useMemo / useCallback), lazy loading, code splitting…
Enforces Feature-Sliced Design (FSD) architecture in React/TypeScript projects by scaffolding compliant folder structures, validating layer boundaries and import directions, detecting and fixing layer violations, and teaching FSD conventions during code generation and review. Use when asked to 'create a page', 'add an…
This skill should be used when the user asks to "write Swift code", "create a Swift type", "set up a Swift package", "review Swift code", "refactor Swift", "use async/await in Swift", "fix Swift style", "set up SwiftLint", "configure SwiftFormat", or when generating any Swift source code regardless of target platform.…
Provides Terraform module, testing, CI/CD, security and AWS stack-layout guidance layered with Provectus conventions (exact version pinning, required tags, ephemeral secrets). Use when working with Terraform - creating modules, writing tests (native test framework, Terratest), setting up CI/CD pipelines, reviewing…
Modern TypeScript conventions for library-agnostic code — strict mode, naming, type annotations, the type system (generics, utility types, conditional and mapped types), discriminated unions, error handling, async patterns, immutability, and project structure. Use when the user asks to "write TypeScript code", "create…
Insurance underwriting domain knowledge for building automated submission-processing systems. Use when designing or implementing underwriting pipelines, document-extraction agents, compliance workflows, HITL review systems, or decision-package assembly for insurance carriers or MGAs. Covers the submission-to-bind…
Verifies a web UI in a running browser by measuring the live DOM with bundled scripts — visibility, clickability, alignment, overflow, and the state a click leaves behind — instead of reading screenshots. Use when a change to a web UI needs verifying in the running app, when a UI bug is reported (something on screen…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: