Free AI Prompt Library - ChatGPT, Claude, Gemini

Claude Prompt for Creating E2E Tests

End-to-end (E2E) tests are essential to ensure your application works correctly from the end user's perspective. However, writing them is often time-consuming and repetitive: simulating complete user journeys, handling selectors, async waits, and UI state assertions. Claude excels at this task by generating structured, maintainable E2E tests covering both happy paths and edge cases. By providing context about your application — tech stack, test framework, page structure — Claude produces ready-to-run test suites for Playwright, Cypress, or other tools. It understands best practices like data-testid usage, the Page Object Model pattern, and loading state management. Whether starting from scratch or supplementing existing coverage, Claude transforms a functional description into robust tests in seconds, letting you focus on business logic rather than technical plumbing.

Prompt Claude for Creating an FAQ

Creating an effective FAQ is more complex than it seems. It's not just about listing obvious questions, but anticipating your audience's real concerns, structuring answers to be both complete and concise, and optimizing everything for SEO. Claude excels at this task thanks to its ability to put itself in the shoes of different user profiles and generate questions you wouldn't have thought of. Whether you're creating an FAQ for a SaaS product, an e-commerce site, a professional service, or technical documentation, Claude can analyze your business context and produce a structured, relevant, and immediately usable FAQ. The AI goes beyond simple rewording: it identifies hidden objections, friction points in the customer journey, and technical questions your users may not always ask. The result is an FAQ that serves as a customer support tool, an SEO lever, and a silent sales argument.

Prompt Claude to Create a Prototype

Creating a prototype is a crucial step in developing a product, application, or service. Traditionally, this phase requires a variety of technical skills, time, and often a multidisciplinary team. With Claude, you can significantly accelerate this process by generating functional prototypes from a simple description of your idea. Whether you want to design an interactive user interface, a web application mockup, an API prototype, or even a technical proof of concept, Claude can produce functional code, HTML/CSS wireframes, or complete architectures ready to be tested. The major advantage is Claude's ability to iterate quickly: you describe your vision, get a first prototype, then refine through successive exchanges until you get exactly what you're looking for. This approach democratizes rapid prototyping and allows entrepreneurs, designers, and product managers to validate their hypotheses without fully relying on a development team in the early stages of the project.

Claude Prompt for Automating Tasks

Task automation is one of the most powerful uses of Claude. Whether you are an entrepreneur, developer, or business professional, you waste considerable time every day on repetitive tasks: sorting emails, extracting data, generating reports, reformatting documents, or classifying information. Claude excels in these scenarios thanks to its ability to understand complex instructions, process structured data, and produce consistent results at scale. Unlike a rigid script, Claude adapts to format variations, handles edge cases, and can explain its decisions. By crafting a well-structured automation prompt, you transform Claude into an operational assistant capable of processing dozens of tasks in seconds with consistent quality. This guide provides optimized prompts to effectively delegate your recurring tasks to Claude, from processing raw data to generating formatted deliverables, including conditional decision-making on information flows.

Claude Prompt for Optimizing a Workflow

Workflow optimization is a major productivity lever, but it requires systematic analysis that few professionals have time for. Claude excels in this area thanks to its ability to break down complex processes, identify bottlenecks, and propose concrete and actionable improvements. Whether you manage a production chain, a software development pipeline, a document validation process, or a marketing workflow, Claude can analyze each step, quantify inefficiencies, and suggest optimizations tailored to your context. By providing a detailed description of your current workflow — steps, actors, tools used, timelines, and friction points — you get a structured analysis that goes far beyond a simple audit. Claude suggests reorganizations, possible automations, elimination of redundancies, and monitoring metrics. The result is a directly applicable optimization plan, with clear priorities and estimated gains for each suggested improvement.

Claude Prompt to Create a Chatbot

Creating a high-performance chatbot with Claude is a major opportunity to automate your customer interactions, technical support, or internal processes. Thanks to its advanced natural language understanding capabilities, Claude excels at designing chatbots that can maintain contextual conversations, handle complex scenarios, and adapt to your brand's tone. Whether you want to deploy an assistant on your website, integrate a bot into Slack or WhatsApp, or create a specialized conversational agent for your business domain, a well-structured prompt is key to a truly useful chatbot. The challenge is not just generating responses, but defining coherent behavior: handling edge cases, escalating to a human when necessary, adhering to a precise knowledge scope, and maintaining an appropriate tone. The prompts presented here guide you to design a professional chatbot with Claude, from quick prototype to robust production system, covering personality, business rules, context management, and essential safeguards.

Claude Prompt for Planning a Product Launch

A product launch is a pivotal moment that can determine the success or failure of an offering in the market. Between defining the positioning, coordinating marketing teams, planning distribution channels, and managing the timeline, there are many variables to orchestrate. Claude excels at this type of complex strategic task because it can simultaneously synthesize multiple dimensions: competitive analysis, audience segmentation, timeline planning, and budget allocation. With a well-structured prompt, you get a complete launch plan covering each phase—from pre-launch to post-launch analysis—with concrete actions and measurable performance indicators. Rather than starting from a blank sheet or generic templates, Claude tailors its strategy to your specific context: product type, market maturity, available resources, and business objectives. The result is an actionable document you can immediately share with your teams to align everyone on a common roadmap.

Prompt for Claude to Create a TV Commercial Script

Creating an effective commercial script is an exercise combining creativity, consumer psychology, and narrative technique. Claude excels at this task thanks to its ability to structure a persuasive message while adapting the tone to your target audience. Whether you are preparing a 30-second radio spot, a video ad for social media, or a script for a TV campaign, Claude can generate scripts that capture attention from the first seconds, communicate your value proposition, and drive action. By providing Claude with key information about your product, target, and objectives, you get a professional script that follows advertising codes while standing out. The AI understands proven narrative mechanics—emotional hook, dramatic tension, product resolution—and applies them naturally. You can quickly iterate on multiple versions, test different creative angles, and refine the message until you get the perfect script for your campaign.

Claude Prompt for Generating JavaScript Code

Claude excels at generating JavaScript code thanks to its deep understanding of modern programming paradigms. Whether you are developing a web application, a Node.js script, or a reusable library, a well-structured prompt yields clean, performant, and maintainable code. The key lies in the precision of your request: by specifying the technical context, performance constraints, desired code style, and edge cases to handle, Claude produces code that directly integrates into your project. This guide provides optimized prompts to get the most out of Claude for JavaScript generation, from simple utility snippets to complete module architectures. You will learn how to formulate your requests to get ES2024+ code, typed when necessary, documented, and accompanied by tests. The tiered approach allows you to adapt the complexity of the prompt to your experience and project requirements, guaranteeing immediately usable results in production.

Claude Prompt to Optimize a Conversion Rate

Conversion rate optimization (CRO) is a major strategic lever for any online business. Every percentage point gained on your conversion rate can mean thousands of euros of additional revenue, without increasing your acquisition budget. Claude excels at analyzing user journeys, identifying friction points, and formulating actionable recommendations. Unlike a purely analytical data-driven approach, Claude can combine behavioral analysis with principles of cognitive psychology, persuasive copywriting, and UX design to produce a comprehensive audit and prioritized A/B test hypotheses. Whether you're looking to improve the conversion rate of a landing page, a sales funnel, an e-commerce product page, or a signup form, Claude structures its analysis around proven frameworks such as WiderFunnel's LIFT model or Cialdini's heuristics. The result: a concrete action plan, prioritized by potential impact and ease of implementation, that your team can execute immediately.

Prompt Claude to Create a Loyalty Program

Creating an effective loyalty program is a major strategic lever for any business looking to strengthen customer retention and increase customer lifetime value (LTV). However, designing a program that is attractive to customers, profitable for the company, and operationally viable requires cross-functional expertise in marketing, finance, and customer experience. Claude excels at this task by combining structured analysis of reward mechanics, a deep understanding of the psychological drivers of loyalty, and the ability to model financial impacts. Using a well-constructed prompt, you get a complete loyalty program including tier structures, point accumulation and redemption mechanics, exclusive benefits per level, and an estimated cost per loyal customer. Whether you're launching a program for an e-commerce store, a network of physical stores, or a subscription service, Claude tailors its recommendations to your sector, margin, and target customer base to produce an actionable and differentiating program.

Prompt Claude for Generating Python Code

Claude, developed by Anthropic, is one of the most powerful AI assistants for generating Python code. With its deep understanding of programming paradigms, best practices, and popular libraries, Claude can produce clean, documented, and functional code in seconds. Whether you are a beginner developer looking to learn by example, or a professional wanting to speed up your workflow, knowing how to formulate an effective prompt makes all the difference between a generic snippet and production-ready code. The challenge is not simply to ask "write Python code", but to provide enough context — objective, constraints, style, error handling — so that Claude generates exactly what you need. A well-structured prompt yields code that follows PEP 8 conventions, includes type hints, handles edge cases, and integrates naturally into your existing project. In this guide, you will find an optimized main prompt as well as variants tailored to each expertise level to get the most out of Claude in your Python projects.