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Pinia

Pinia state management best practices for type-safe Vue stores, getters, and actions.

Pinia agent skill overview

This MCP Server Hub listing collects the source repository, setup notes, feature summary, and README details for Pinia. Use it to decide whether this agent skill fits your AI assistant workflow before installing it locally or connecting it to a compatible client.


name: pinia description: Pinia official Vue state management library, type-safe and extensible. Use when defining stores, working with state/getters/actions, or implementing store patterns in Vue apps. metadata: author: Anthony Fu version: "2026.1.28" source: Generated from https://github.com/vuejs/pinia, scripts located at https://github.com/antfu/skills

Pinia

Pinia is the official state management library for Vue, designed to be intuitive and type-safe. It supports both Options API and Composition API styles, with first-class TypeScript support and devtools integration.

The skill is based on Pinia v3.0.4, generated at 2026-01-28.

Core References

Topic Description Reference
Stores Defining stores, state, getters, actions, storeToRefs, subscriptions core-stores

Features

Extensibility

Topic Description Reference
Plugins Extend stores with custom properties, state, and behavior features-plugins

Composability

Topic Description Reference
Composables Using Vue composables within stores (VueUse, etc.) features-composables
Composing Stores Store-to-store communication, avoiding circular dependencies features-composing-stores

Best Practices

Topic Description Reference
Testing Unit testing with @pinia/testing, mocking, stubbing best-practices-testing
Outside Components Using stores in navigation guards, plugins, middlewares best-practices-outside-component

Advanced

Topic Description Reference
SSR Server-side rendering, state hydration advanced-ssr
Nuxt Nuxt integration, auto-imports, SSR best practices advanced-nuxt
HMR Hot module replacement for development advanced-hmr

Key Recommendations

  • Prefer Setup Stores for complex logic, composables, and watchers
  • Use storeToRefs() when destructuring state/getters to preserve reactivity
  • Actions can be destructured directly - they're bound to the store
  • Call stores inside functions not at module scope, especially for SSR
  • Add HMR support to each store for better development experience
  • Use @pinia/testing for component tests with mocked stores