005-code-style

A set of coding rules for TypeScript projects, covering code structure, functions, imports, comments, and package management. It also includes conventions for React server actions.

In plain words
What is it for?
Use it to guide TypeScript and React changes, especially file organisation, function parameters, server-only code, and pnpm package work.
Why use it?
It gives contributors consistent decisions to follow, reducing style differences and avoiding duplicate packages or misplaced code.

Cursor rule for Cursor

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add rules/passionmuse16/food-tracker/005-code-style
Clone the repo
git clone --depth 1 https://github.com/passionmuse16/food-tracker

Made for: Cursor.

Per session 302 This file is loaded in full into every session.
When invoked 302 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00302 $0.00302
Opus 5 $0.00151 $0.00151
Sonnet 5 $0.00060 $0.00060
Haiku 4.5 $0.00030 $0.00030

Measured 2d ago against content hash e7736689111b, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

005-code-style scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.cursor/rules/005-code-style.mdc · 36 lines

What it actually says

Code Style and Structure

General Principles

  • Write concise, technical TypeScript code with accurate examples.
  • Use functional and declarative programming patterns; avoid classes.
  • Prefer iteration and modularization over code duplication.
  • Use descriptive variable names with auxiliary verbs (e.g., isLoading, hasError).
  • Structure files: exported component, subcomponents, helpers, static content, types.
  • Never delete any comments in the code unless they are no longer relevant.

Function Guidelines

  • When a function has more than 1 parameter, always pass them as a named object.
  • Use the "function" keyword for pure functions.
  • Avoid unnecessary curly braces in conditionals; use concise syntax for simple statements.

Import Guidelines

  • Add import "server-only" at the top of the file (ignore this rule for page.tsx files) if it's only intended to be used on the server.
  • When creating React server actions always use import { useServerAction } from "zsa-react"

Package Management

  • Before adding any new packages, always check if we already have them in package.json to avoid duplicates.
  • Use pnpm for all package management operations.

Type Definitions

  • When you have to add a global type, add it to custom-env.d.ts instead of cloudflare-env.d.ts, because otherwise it will be overridden by pnpm run cf-typegen.
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 36 lines · 302 tokens per session scan A e7736689111b

Subscribe to this mod's changes

005-code-style is a cursor rule published in the GitHub repository passionmuse16/food-tracker (2 stars, last pushed 10mo ago), licensed MIT. It adds 302 tokens to every session, about $0.0015 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.