code-quality

code-quality is a cursor rule for Cursor from GoranErhartic/cursor-development-rules. It costs 36 tokens per session (345 once invoked), scanned A, original, MIT.

Code-quality rules for Node.js 22 Lambda functions written in TypeScript. They cover project structure, strict type checking, linting, and creating small deployment bundles with esbuild.

In plain words
What is it for?
Organizing Lambda projects, configuring TypeScript and ESLint, bundling each function, limiting dependencies, and checking bundle sizes in continuous integration.
Why use it?
They reduce common build and maintenance problems, such as oversized deployments, unused code, duplicated logic, and accidentally packaging infrastructure code.

Cursor rule for Cursor

Written for Cursor: installed under .cursor/.

Good fit Organizing Lambda projects, configuring TypeScript and ESLint, bundling each function, limiting dependencies, and checking bundle sizes in continuous integration.

Compare 6 cursor rules from other repositories ↓
Install with agentmods
npx agentmods add rules/goranerhartic/cursor-development-rules/code-quality
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.

Clone the repo
git clone --depth 1 https://github.com/GoranErhartic/cursor-development-rules

Made for: Cursor.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for code-quality

README.md
[![agentmods](https://agentmods.dev/badge/rules/goranerhartic/cursor-development-rules/code-quality/github.svg)](https://agentmods.dev/rules/goranerhartic/cursor-development-rules/code-quality)
Your own site
<a href="https://agentmods.dev/rules/goranerhartic/cursor-development-rules/code-quality"><img src="https://agentmods.dev/badge/rules/goranerhartic/cursor-development-rules/code-quality/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for code-quality

Your own site · 80×15
<a href="https://agentmods.dev/rules/goranerhartic/cursor-development-rules/code-quality"><img src="https://agentmods.dev/badge/rules/goranerhartic/cursor-development-rules/code-quality.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 36 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 345 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00036 $0.00345
Opus 5.5 $0.00014 $0.00138
Sonnet 5.5 $0.00007 $0.00069
Haiku 4.5 $0.00004 $0.00034

Measured 1mo ago against content hash c50ac58f05b5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

code-quality 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 1mo 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/languages/aws-lambda/code-quality.mdc · 35 lines

What it actually says

Lambda Code Quality

Structure

  • functions/ — one folder per Lambda (handler.ts, schema.ts); services/ — business logic; repositories/ — data access; shared/ — clients, errors, middleware, logger, types; test/ — setup, factories
  • cdk/ — bin, lib/stacks, lib/constructs

TypeScript

  • Target ES2022; module: "NodeNext", moduleResolution: "NodeNext"; strict, noUncheckedIndexedAccess, paths for @/*
  • Lambda-specific tsconfig: include only src (or functions) for build; exclude cdk from function bundle

Bundling (esbuild)

  • Use Node 22 target; externalize AWS SDK v3 and optional dependencies to reduce bundle size; single entry per function
  • Minimize dependencies in function package; tree-shake; check bundle size in CI

ESLint

  • Use flat config (eslint.config.mjs); TypeScript and Lambda best practices; no unused vars; consistent imports

Conventions

  • Small bundles; strict TypeScript; single responsibility per function; shared code in shared/; no secrets in code

Anti-Patterns

  • Large transitive dependencies; bundling cdk; non-strict TS; duplicated logic across functions

See also: lambda-handlers.mdc, cdk-infrastructure-lambda.mdc, languages/nodejs/code-quality.mdc

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. 1mo ago First seen · 35 lines · 36 tokens per session scan A c50ac58f05b5

Subscribe to this mod's changes

code-quality is a cursor rule published in the GitHub repository GoranErhartic/cursor-development-rules (19 stars, last pushed 7mo ago), licensed MIT. It adds 36 tokens to every session and 345 once invoked, about $0.0001 per session on Opus 5.5. 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 2026-08-30.