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lovable-boilerplate: Instructions file for Claude Code

CLAUDE.md

lovable-boilerplate CLAUDE.md is an instructions file for Claude Code from chihebnabil/lovable-boilerplate. It costs 1,347 tokens per session, scanned A, original, MIT.

Repository instructions for a React and TypeScript web application built with Vite and common UI libraries. They describe its commands, package setup, architecture, and code organization.

In plain words
What is it for?
Use them when developing features, installing dependencies, running checks, or navigating the repository structure.
Why use it?
They give a coding agent the project-specific rules needed to run, build, lint, and modify the application consistently.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions Cursor.

This is chihebnabil/lovable-boilerplate's own configuration. It tells Claude Code how to work on lovable-boilerplate itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything lovable-boilerplate configures →

not rated 65repo 1mo ago A scan 1,347 tokens original MIT
View source ↗ chihebnabil/lovable-boilerplate nextlovable.com
Reuse

Borrowing it

Nothing to install: this file belongs to chihebnabil/lovable-boilerplate. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/chihebnabil/lovable-boilerplate/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/chihebnabil/lovable-boilerplate

Made for: Claude Code.

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README.md
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<a href="https://agentmods.dev/instructions/chihebnabil/lovable-boilerplate/claude-md"><img src="https://agentmods.dev/badge/instructions/chihebnabil/lovable-boilerplate/claude-md.svg" alt="Measured on agentmods" height="20"></a>
Per session 1,347 This file is loaded in full into every session.
When invoked 1,347 The same file — it is already loaded in full.
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 $0.01347 $0.01347
Opus 5 $0.00674 $0.00674
Sonnet 5 $0.00269 $0.00269
Haiku 4.5 $0.00135 $0.00135

Measured 8d ago against content hash b8519280aac9, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

lovable-boilerplate CLAUDE.md 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 8d 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.

CLAUDE.md · 121 lines

How it starts

The opening of the file, as written. The whole thing — 121 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Development Commands

Core Development

  • npm run dev - Start development server on port 8080
  • npm run build - Create production build
  • npm run build:dev - Create development build
  • npm run lint - Run ESLint linter
  • npm run preview - Preview production build locally

Package Management

  • npm install - Install dependencies (or use bun install for faster installs)

Architecture & Structure

Framework Stack

  • React 18.3.1 with TypeScript for UI
  • Vite 5.4.1 as build tool with SWC for fast compilation
  • shadcn/ui component library built on Radix UI primitives
  • Tailwind CSS 3.4.11 for styling with custom design system
  • React Router DOM v6 for client-side routing
  • TanStack Query for server state management
  • React Hook Form + Zod for form handling and validation

Key Architecture Patterns

Component Organization & Structure
  • src/components/ui/ - Pre-built shadcn/ui components (40+ available, READ-ONLY)
  • src/components/common/ - Reusable components (20-100 lines each)
  • src/components/forms/ - Form-specific components
  • src/components/features/ - Feature-specific components
  • src/pages/ - Route-level page components
  • src/hooks/ - Custom React hooks including use-mobile.tsx and use-toast.ts
  • src/lib/utils.ts - Utility functions with Tailwind class merging via cn() function
  • src/lib/types.ts - Shared TypeScript types and interfaces
  • src/lib/constants.ts - Application constants
  • src/lib/validations/ - Zod validation schemas
Critical Architecture Rules
  • Component Size Limit: Never exceed 300 lines per component
  • Composition Over Complexity: Build complex UI from smaller, focused components
  • Single Responsibility: Each component should have one clear purpose
  • Extract Reusable Logic: Use custom hooks instead of duplicating code
  • Service Layer Pattern: No inline API calls in components - use service layer in src/lib/

Read the full file on GitHub · 121 lines

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. 8d ago First seen · 121 lines · 1,347 tokens per session scan A b8519280aac9

Subscribe to this mod's changes

lovable-boilerplate CLAUDE.md is an instructions file published in the GitHub repository chihebnabil/lovable-boilerplate (65 stars, last pushed 1mo ago), licensed MIT. It adds 1,347 tokens to every session, about $0.0067 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 2026-08-30.

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