Express Rules for Cursor

1 rule for Express

Express Rules for Cursor: Middleware, Routing and Validation

Cursor rules for Express: Middleware, Routing and Validation. Structure, data, errors, security, performance, and tests. Express 5.3.0, Nov 2026.

# Express Rules for Cursor: Middleware, Routing and Validation

## Install

Install the native export at `.cursor/rules/express-rules.mdc`.
Copy that export, not this catalog file. Catalog fields such as `tools` and `author` are for presets.dev.
Install one skill file per name. Cursor, GitHub Copilot, Codex, Antigravity CLI, and Devin can all read `.agents/skills`, so a second copy with the same name collides.

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# Express Rules for Cursor: Middleware, Routing and Validation

File-scoped Cursor rule for Express. It attaches when a matching file is in context.

## Updated for Express 5.3.0, Nov 2026
Do not upgrade dependencies or the framework version unless the task asks.

## Project shape

Middleware is an ordered list. Security headers, body parsing, and auth run bef...