How do I install the Powersync skill?

Run npx skillmds@latest add majiayu000/powersync-2 in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Powersync safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Powersync?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Powersync free to use?

Yes. Installing skills from SkillMD is free. This skill is licensed under Apache-2.

Who published Powersync?

majiayu000 (@majiayu000) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Powersync by majiayu000 — Agent Skill

Name: Powersync
Rating: 4.2 (5 reviews)
Author: majiayu000

Powersync

Build local-first, offline-capable TypeScript apps with PowerSync. Use when implementing real-time sync between SQLite and backend databases (Postgres, MongoDB, MySQL, SQL Server). Covers schema definition, database setup, CRUD operations, React/Vue hooks, watch queries, and Kysely/Drizzle ORM integration.

majiayu000 Updated Sep 22, 2026 567 repo stars

File contents

PowerSync TypeScript Skill

Sync engine for local-first apps with real-time sync between client SQLite and backend databases.

When to Use

Offline-first/local-first applications
Real-time sync between client and server
Instant UI responsiveness with background sync

Installation

Platform	Package
Web	`@powersync/web` + `@journeyapps/wa-sqlite`
React Native	`@powersync/react-native` + `@powersync/op-sqlite`
React hooks	`@powersync/react`
Vue composables	`@powersync/vue`
Node.js	`@powersync/node`
Kysely ORM	`@powersync/kysely-driver`
Drizzle ORM	`@powersync/drizzle-driver`

Core Setup

Schema → docs · example
Database → docs · example
Connector → docs · example

API Quick Reference

Operation	Method
Get one	`db.get(sql, params)` / `db.getOptional(sql, params)`
Get all	`db.getAll(sql, params)`
Execute	`db.execute(sql, params)`
Transaction	`db.writeTransaction(async (tx) => { ... })`
Watch	`db.query({sql, parameters}).watch()`
Diff watch	`db.query({sql, parameters}).differentialWatch()`

Full CRUD: docs

React Hooks

Hook	Purpose
`useQuery`	Query with loading/error states
`useSuspenseQuery`	Query with Suspense
`useStatus`	Connection status
`usePowerSync`	Database instance

Docs: React · Vue

ORM Integration

ORM	Docs	Example
Kysely	docs	source
Drizzle	docs	source
TanStack DB	docs	demo

Documentation

Topic	URL
Overview	https://docs.powersync.com/intro/powersync-overview.md
Web SDK	https://docs.powersync.com/client-sdk-references/javascript-web.md
React Native SDK	https://docs.powersync.com/client-sdk-references/react-native-and-expo.md
Sync Rules	https://docs.powersync.com/usage/sync-rules.md
Watch Queries	https://docs.powersync.com/usage/use-case-examples/watch-queries.md
API Reference	https://powersync-ja.github.io/powersync-js/web-sdk

Local References

references/sync-rules.md - Sync Rules configuration
references/examples.md - All official example projects

GitHub Source

powersync-ja/powersync-js

Package	Description
common	Shared core (schema, sync, types)
web	Web SDK
react-native	React Native SDK
node	Node.js SDK
capacitor	Capacitor SDK
react	React hooks
vue	Vue composables
tanstack-react-query	TanStack Query integration
kysely-driver	Kysely ORM driver
drizzle-driver	Drizzle ORM driver
attachments	File attachments helper
powersync-op-sqlite	OP-SQLite adapter
adapter-sql-js	SQL.js adapter (Expo Go)

---name: powersync-2description: Build local-first, offline-capable TypeScript apps with PowerSync. Use when implementing real-time sync between SQLite and backend databases (Postgres, MongoDB, MySQL, SQL Server). Covers schema definition, database setup, CRUD operations, React/Vue hooks, watch queries, and Kysely/Drizzle ORM integration.license: Apache-2.0---# PowerSync TypeScript SkillSync engine for local-first apps with real-time sync between client SQLite and backend databases.## When to Use- Offline-first/local-first applications- Real-time sync between client and server- Instant UI responsiveness with background sync## Installation| Platform | Package || --------------- | -------------------------------------------------- || Web | `@powersync/web` + `@journeyapps/wa-sqlite` || React Native | `@powersync/react-native` + `@powersync/op-sqlite` || React hooks | `@powersync/react` || Vue composables | `@powersync/vue` || Node.js | `@powersync/node` || Kysely ORM | `@powersync/kysely-driver` || Drizzle ORM | `@powersync/drizzle-driver` |## Core Setup1. **Schema** → [docs](https://docs.powersync.com/installation/client-side-setup/define-your-schema.md) · [example](https://github.com/powersync-ja/powersync-js/blob/main/demos/react-supabase-todolist/src/library/powersync/AppSchema.ts)1. **Database** → [docs](https://docs.powersync.com/installation/client-side-setup/instantiate-powersync-database.md) · [example](https://github.com/powersync-ja/powersync-js/blob/main/demos/react-supabase-todolist/src/library/powersync/system.ts)1. **Connector** → [docs](https://docs.powersync.com/installation/client-side-setup/integrating-with-your-backend.md) · [example](https://github.com/powersync-ja/powersync-js/blob/main/demos/react-supabase-todolist/src/library/powersync/SupabaseConnector.ts)## API Quick Reference| Operation | Method || ----------- | ----------------------------------------------------- || Get one | `db.get(sql, params)` / `db.getOptional(sql, params)` || Get all | `db.getAll(sql, params)` || Execute | `db.execute(sql, params)` || Transaction | `db.writeTransaction(async (tx) => { ... })` || Watch | `db.query({sql, parameters}).watch()` || Diff watch | `db.query({sql, parameters}).differentialWatch()` |> Full CRUD: [docs](https://docs.powersync.com/client-sdk-references/javascript-web.md#using-powersync-crud-functions)## React Hooks| Hook | Purpose || ------------------ | ------------------------------- || `useQuery` | Query with loading/error states || `useSuspenseQuery` | Query with Suspense || `useStatus` | Connection status || `usePowerSync` | Database instance |> Docs: [React](https://docs.powersync.com/client-sdk-references/javascript-web/javascript-spa-frameworks.md#react-hooks) · [Vue](https://docs.powersync.com/client-sdk-references/javascript-web/javascript-spa-frameworks.md#vue-composables)## ORM Integration| ORM | Docs | Example || ----------- | ----------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------- || Kysely | [docs](https://docs.powersync.com/client-sdk-references/javascript-web/javascript-orm/kysely.md) | [source](https://github.com/powersync-ja/powersync-js/tree/main/packages/kysely-driver) || Drizzle | [docs](https://docs.powersync.com/client-sdk-references/javascript-web/javascript-orm/drizzle.md) | [source](https://github.com/powersync-ja/powersync-js/tree/main/packages/drizzle-driver) || TanStack DB | [docs](https://docs.powersync.com/client-sdk-references/javascript-web/javascript-orm/tanstack-db.md) | [demo](https://github.com/powersync-ja/powersync-js/tree/main/demos/react-supabase-todolist-tanstackdb) |## Documentation| Topic | URL || ---------------- | --------------------------------------------------------------------------- || Overview | <https://docs.powersync.com/intro/powersync-overview.md> || Web SDK | <https://docs.powersync.com/client-sdk-references/javascript-web.md> || React Native SDK | <https://docs.powersync.com/client-sdk-references/react-native-and-expo.md> || Sync Rules | <https://docs.powersync.com/usage/sync-rules.md> || Watch Queries | <https://docs.powersync.com/usage/use-case-examples/watch-queries.md> || API Reference | <https://powersync-ja.github.io/powersync-js/web-sdk> |## Local References- `references/sync-rules.md` - Sync Rules configuration- `references/examples.md` - All official example projects## GitHub Source[powersync-ja/powersync-js](https://github.com/powersync-ja/powersync-js)| Package | Description || ------------------------------------------------------------------------------------------------------------ | --------------------------------- || [common](https://github.com/powersync-ja/powersync-js/tree/main/packages/common) | Shared core (schema, sync, types) || [web](https://github.com/powersync-ja/powersync-js/tree/main/packages/web) | Web SDK || [react-native](https://github.com/powersync-ja/powersync-js/tree/main/packages/react-native) | React Native SDK || [node](https://github.com/powersync-ja/powersync-js/tree/main/packages/node) | Node.js SDK || [capacitor](https://github.com/powersync-ja/powersync-js/tree/main/packages/capacitor) | Capacitor SDK || [react](https://github.com/powersync-ja/powersync-js/tree/main/packages/react) | React hooks || [vue](https://github.com/powersync-ja/powersync-js/tree/main/packages/vue) | Vue composables || [tanstack-react-query](https://github.com/powersync-ja/powersync-js/tree/main/packages/tanstack-react-query) | TanStack Query integration || [kysely-driver](https://github.com/powersync-ja/powersync-js/tree/main/packages/kysely-driver) | Kysely ORM driver || [drizzle-driver](https://github.com/powersync-ja/powersync-js/tree/main/packages/drizzle-driver) | Drizzle ORM driver || [attachments](https://github.com/powersync-ja/powersync-js/tree/main/packages/attachments) | File attachments helper || [powersync-op-sqlite](https://github.com/powersync-ja/powersync-js/tree/main/packages/powersync-op-sqlite) | OP-SQLite adapter || [adapter-sql-js](https://github.com/powersync-ja/powersync-js/tree/main/packages/adapter-sql-js) | SQL.js adapter (Expo Go) |

Frequently asked questions