ferix: Skill for Claude Code

Convex Schema Validator

Define and validate database schemas in Convex with proper typing, index configuration, optional fields, unions, and strategies for schema migrations.

Documentation Sources

Before implementing, do not assume; fetch the latest documentation:

• Primary: https://docs.convex.dev/database/schemas
• Indexes: https://docs.convex.dev/database/indexes
• Data Types: https://docs.convex.dev/database/types
• For broader context: https://docs.convex.dev/llms.txt

Instructions

Basic Schema Definition

// convex/schema.ts
import { defineSchema, defineTable } from "convex/server";
import { v } from "convex/values";

export default defineSchema({
  users: defineTable({
    name: v.string(),
    email: v.string(),
    avatarUrl: v.optional(v.string()),
    createdAt: v.number(),
  }),
  
  tasks: defineTable({
    title: v.string(),
    description: v.optional(v.string()),
    completed: v.boolean(),
    userId: v.id("users"),
    priority: v.union(
      v.literal("low"),
      v.literal("medium"),
      v.literal("high")
    ),
  }),
});

Validator Types

Validator	TypeScript Type	Example
v.string()	string	"hello"
v.number()	number	42, 3.14
v.boolean()	boolean	true, false
v.null()	null	null
v.int64()	bigint	9007199254740993n
v.bytes()	ArrayBuffer	Binary data
v.id("table")	Id<"table">	Document reference
v.array(v)	T[]	[1, 2, 3]
v.object({})	{ ... }	{ name: "..." }
v.optional(v)	T | undefined	Optional field
v.union(...)	T1 | T2	Multiple types
v.literal(x)	"x"	Exact value
v.any()	any	Any value
v.record(k, v)	Record<K, V>	Dynamic keys

Index Configuration

export default defineSchema({
  messages: defineTable({
    channelId: v.id("channels"),
    authorId: v.id("users"),
    content: v.string(),
    sentAt: v.number(),
  })
    // Single field index
    .index("by_channel", ["channelId"])
    // Compound index
    .index("by_channel_and_author", ["channelId", "authorId"])
    // Index for sorting
    .index("by_channel_and_time", ["channelId", "sentAt"]),
    
  // Full-text search index
  articles: defineTable({
    title: v.string(),
    body: v.string(),
    category: v.string(),
  })
    .searchIndex("search_content", {
      searchField: "body",
      filterFields: ["category"],
    }),
});