convex-best-practices

Standardize Convex application architecture with typed validators, indexed queries, and idempotent mutations.

1|Updated Oct 10, 2025
One-click install
npx skills add https://github.com/cgRGM/rivercitymd --skill convex-best-practices-cgrgm
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: convex-best-practices
Source: https://github.com/cgRGM/rivercitymd/tree/main/.cursor/skills/convex-best-practices
Command: npx skills add https://github.com/cgRGM/rivercitymd --skill convex-best-practices-cgrgm

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It helps you build Convex applications that are reliable, maintainable, and ready for production by avoiding common mistakes in data modeling, function design, querying, and error handling.

Core Features & Use Cases

  • Function Organization: Structure queries, mutations, and internal functions by domain so the backend stays easy to navigate and extend.
  • Validation and Typing: Define validators for inputs and outputs, and use TypeScript types to keep client and server logic aligned.
  • Efficient Queries: Prefer indexed queries over broad filtering to improve performance and reduce unnecessary database work.
  • Error and Conflict Handling: Use user-facing errors, idempotent mutations, and retry-safe patterns to make operations resilient.
  • Use Case: Apply these practices when building a dashboard, booking workflow, or any real-time app that depends on consistent backend behavior.

Quick Start

Use this skill to review your Convex functions and rewrite them with clear domain organization, explicit validators, indexed queries, and safer mutation patterns.

Frequently Asked Questions about convex-best-practices

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I handle errors in Convex mutations so users see proper messages?

Handle Convex errors by throwing ConvexError for user-facing messages in your mutations. This pattern separates client-facing validation failures from internal server logic faults, ensuring reliable error handling across your backend workflows.

What's the best way to structure Convex queries for production apps?

Structure Convex queries by organizing functions into domain-specific modules and prefer indexed queries over broad filtering. This reduces unnecessary database work and keeps your real-time backend architecture maintainable as it scales.

How do I make Convex mutations idempotent to prevent duplicate data on retries?

Make Convex mutations idempotent by implementing retry-safe data update patterns within your function logic. This prevents duplicate records and reduces conflicts when network issues cause clients to retry dashboard or booking operations.

Do I need explicit return validators for Convex queries and mutations?

Yes, you need explicit return validators for Convex queries and mutations. End-to-end TypeScript typing with defined input and output validators keeps client and server logic aligned, reducing runtime data structure errors.

How does TypeScript validation work with Convex backend functions?

TypeScript validation in Convex works by defining validators for function inputs and outputs, ensuring end-to-end type safety. This alignment between client and server logic prevents untyped data from breaking your real-time application workflows.

Why should I use indexed queries instead of filtering in Convex?

Use indexed queries instead of broad filtering in Convex to improve performance and reduce unnecessary database work. Indexed queries efficiently locate specific records, which is critical for maintaining fast response times in real-time portals and dashboards.