Kysely

Type-safe TypeScript SQL query builder with zero runtime overhead. Immutable builders, full autocompletion, and compile-time error detection.

Sub-Skill Routing

Need	Load Skill	Trigger Phrases
SELECT, joins, where, expressions, aggregates	`kysely-querying`	selectFrom, innerJoin, eb(), fn.count, where, having
INSERT, UPDATE, DELETE, upserts, transactions	`kysely-writes-transactions`	insertInto, updateTable, deleteFrom, onConflict, transaction, savepoint
Schema DDL, migrations, Migrator setup	`kysely-schema-migrations`	createTable, addColumn, Migrator, FileMigrationProvider, migration
Cross-dialect portability, feature detection	`kysely-dialect-portability`	PostgresDialect, MysqlDialect, supportsReturning, jsonArrayFrom, plugin
CTEs, window functions, raw SQL, streaming	`kysely-advanced-sql`	with(), sql``, DynamicModule, CASE, over(), stream, CTE

Load the specific sub-skill for detailed patterns and examples. This router skill covers the mental model, type system, and non-negotiable rules.