How to send real-time in-app notifications from PostHog backend code.
Frontend development skill for React, Next.js, TypeScript, and Tailwind CSS applications.
Complete toolkit for senior fullstack with modern tools and best practices.
Apply when concurrent actors might write to the same file, branch, key, or state object.
Enforces code organization using features/ (verticals), platform/ (horizontals), and shell/ (thin wiring).
Reviews serde serialization code for derive patterns, enum representations, custom implementations, and common serialization bugs.
Expert skill for binary and text serialization formats, schema design, and optimization
Framework server plugins and the `/_agent-native/` route namespace.
Implements server-state management and API caching in React applications using React Query to eliminate redundant data fetches.
Wires every side effect and native channel as an injectable interface behind a Provider that throws UnimplementedError until the…
Structured debugging runbook for backend services.
Use when multiple workflows duplicate the same operational logic, when deciding what belongs in actions vs shared services, or when…
Design and review application-service boundaries, business logic placement, transaction ownership, orchestration, side effects…
Skill for the Services area of Securacy. 113 symbols across 25 files.
Sesame HR via Apideck's Proxy API + managed Vault auth — Apideck handles auth and proxies HTTP calls to Sesame HR's native API.
Set up lefthook git hooks in a project — commitlint on commit messages, gitleaks secret scanning, and lint/format hooks matched to the…
Reconcile, settle, summarize, snapshot, and close a SagaSmith narrative play session.
Guides through installation, configuration, and first-time setup of the Claude Patent Creator system.
Create or reconfigure a SagaSmith narrative campaign through the native MCP, including profile and Pack selection, membership, actor…
Install Husky pre-commit hooks with lint-staged (Prettier), type checking, and test automation.
Set up Husky pre-commit hooks with lint-staged (Prettier), type checking, and tests in the current repo.