Powersync

Skill guillempuche/ai-standards/skills/powersync

Open-source AI coding skills for Claude Code, Cursor, Copilot, and AI agents

Install

npx -y skills add guillempuche/ai-standards --skill powersync

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

0 stars0 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.

What its author says it does

Copied from the file, not written here

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.

The file declares its own license as Apache-2.0. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.

SKILL.md

7.9 KB, as published. Nobody here has run it

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)

Gives 0 of the 12 instructions most databases sql skills give

Counted across 589 of the 662 authors here whose files we hold, read 2026-08-06

use parameterized queriesin 36 of 589, across 32 files
use timestamptz for timestampsin 30 of 589, across 12 files
create indexes concurrentlyin 29 of 589, across 23 files
index foreign keysin 28 of 589, across 17 files
use numeric type for moneyin 25 of 589, across 8 files
select only required columnsin 24 of 589, across 19 files
use cursor pagination instead of OFFSETin 23 of 589, across 15 files
add indexes manually on foreign key columnsin 22 of 589, across 11 files
read individual rule files for detailed explanationsin 18 of 589, across 4 files
configure connection poolingin 18 of 589, across 16 files
put equality columns before range columns in indexesin 17 of 589, across 9 files
normalize to third normal formin 17 of 589, across 8 files

Said here and by no other author read

instantiate the database
integrate the backend connector
use db methods for operations
use writeTransaction for mutations
use watch for live queries
use React hooks for queries

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once.