Master Convex AI Apps: Best Practices & Production Patterns

Master Convex AI Apps: Best Practices & Production Patterns

This AI agent skill package provides developers with the tools and guidelines needed to improve the performance and reliability of Convex applications. It enforces best practices and production patterns through the @convex-dev/eslint-plugin, significantly assisting in code reviews and the development of robust applications.

What this skill does

• Enforces validators on every function, ensuring arguments and returns are explicitly checked.
• Utilises indexes for database reads, ensuring efficient data retrieval via the `withIndex` method.
• Encourages idempotent mutations, aiding safe retries by checking if the desired state is already achieved.
• Supports patch operations without pre-reading, thus reducing unnecessary data accesses.
• Facilitates concurrent writes using `Promise.all` to enhance performance.
• Schedules internal tasks securely, avoiding unauthorized public client interactions.
• Promotes the use of thin wrappers for separating authentication and business logic.
• Advises on handling client-readable errors using `ConvexError`.

Who it is for

This skill is intended for developers and teams working with AI coding assistants such as Claude Code, Cursor, and Codex, who seek to implement Convex applications with reliable patterns and practices. It is particularly useful for those involved in backend development, application optimisation, and codebase maintenance.

Use cases

• Supporting developers in conducting thorough code reviews of Convex applications.
• Assisting teams in setting up or improving ESLint configurations to enforce consistent best practices.
• Reducing write conflicts and optimising query performance in existing codebases.

Technical details

• Tools used: @convex-dev/eslint-plugin, Convex schemas and functions.
• Applicable for AI coding agents: Claude Code, Cursor, Codex.
• Focus areas include using validators, indexes, idempotent operations, and error handling patterns.

Source & Licence

This package is built on open-source work published by waynesutton (waynesutton/builder-skills) and distributed under Apache-2.0. The original licence text and copyright notice are included in your download.

Personal and commercial use, modification and redistribution are permitted under the Apache License 2.0, which also includes an express patent grant. Attribution and any NOTICE file must be retained.

Your purchase covers curation, licence verification, packaging, documentation and instant delivery. It does not grant exclusive rights to the underlying open-source code, which remains available under its original licence.

Delivery & Support

• Delivery: instant — a secure download link is emailed to you as soon as payment is confirmed.
• Format: ZIP archive containing the skill files, documentation and the original licence.
• Support: support@mcpcart.com — we aim to reply within 2 business days.
• Updates: updates are included only where stated on this page.

Refunds

This is a digital product delivered immediately after purchase. By completing your order you request immediate delivery and acknowledge that, once the download has been accessed, the statutory right to cancel no longer applies to the extent permitted by law. Refund requests are handled in accordance with our published Refund Policy.

Claude, Codex, Gemini and Cursor are trademarks of their respective owners. MCP Cart is an independent marketplace and is not affiliated with, endorsed by, or sponsored by any of them. Compatibility references describe interoperability only.