Best Prompts to Use with Claude 3.5 AI Agents (2025 Guide)
Why Prompts Matter More Than Ever
Artificial Intelligence has taken a massive leap in 2025, and Claude 3.5 AI Agents by Anthropic are leading the way. But here’s a truth not everyone talks about: Claude is only as powerful as the prompt you give it.
Prompts are no longer just questions they’re commands, collaborations, and launchpads for deep, multi-step workflows.
With Claude 3.5’s new agent capabilities, the right prompt can:
- Save you hours of manual work
- Generate powerful content, code, and business strategy
- Act as a thought partner, not just a chatbot
In this guide, we’ll walk you through the best prompts to use with Claude 3.5, how to structure them, and real-world examples for different industries.
Let’s unlock the full power of prompting.
What Makes a Good Prompt for Claude 3.5 AI Agents?
Claude 3.5 Agents are designed to handle longer, more complex, and contextual tasks.
A strong prompt should:
- Define a role or persona
- Specify the task clearly
- Provide context
- Suggest tone, format, or constraints
- Be open to multi-step reasoning
Basic Prompt Template:
Role: [Who Claude should act as]
Task: [What you want done]
Context: [Background, audience, goal]
Tone/Format: [Optional: style, length, tone]
Top 15 Claude 3.5 Prompts by Use Case
1. Blog Post Writer Prompt
“Act as a blog writer. Write a 1,500-word post on ‘How Remote Work is Reshaping Small Businesses in the U.S.’ Include H2 subheadings, SEO optimization, and a friendly tone.”
🎯 Perfect for marketers, bloggers, freelancers.
2. Business Strategy Prompt
“You are a startup advisor. Create a complete go-to-market plan for a mental health app targeting Gen Z in the U.S. Include channels, budget ranges, and KPIs.”
🎯 Useful for entrepreneurs and business consultants.
3. Research Summarization Prompt
“Summarize this 25-page academic PDF into bullet points. Highlight key arguments, supporting data, and counterpoints. Then write a simplified version for a high school audience.”
🎯 Great for researchers, students, teachers.
4. Email Reply Assistant Prompt
“Act as a polite executive assistant. Draft a response to a client who missed our last deadline, and suggest two options for rescheduling professionally.”
🎯 For busy professionals & teams.
5. Code Optimization Prompt
“Analyze the following Python function. Explain what it does in plain English and suggest two performance improvements.”
(Add your code snippet below)
🎯 For developers, software engineers, tech students.
6. Educational Lesson Planner Prompt
“You are an education specialist. Build a 3-day lesson plan for teaching digital literacy to 8th-grade students. Include objectives, materials, and one group activity per day.”
🎯 Teachers, curriculum planners, trainers.
7. Proposal Writing Prompt
“Write a formal service proposal for a digital marketing agency targeting local restaurants. Emphasize local SEO, content marketing, and conversion optimization.”
🎯 Ideal for agencies, freelancers, consultants.
8. Tone-Changer Prompt
“Rewrite the following paragraph to match a casual, Gen Z-friendly tone without changing the meaning. Avoid emojis and slang.”
🎯 For content editors and brand strategists.
9. Competitive Analysis Prompt
“Compare Product A with Product B across pricing, features, user interface, and support. Present the result in a table followed by a 1-paragraph summary.”
🎯 For product managers and business analysts.
10. Launch Plan Builder Prompt
“Break down a 30-day product launch plan for a SaaS tool. Include writing copy, landing page creation, ad setup, email sequence, and launch day tasks.”
🎯 Startups, solopreneurs, growth teams.
11. Social Media Content Generator Prompt
“Generate a week of LinkedIn posts promoting a personal finance newsletter. Vary the format: 2 tips, 2 questions, 2 stories, 1 infographic prompt.”
🎯 For personal brands & creators.
12. Legal Document Simplifier Prompt
“Summarize this legal contract into plain English, breaking it into sections with bullet points. Highlight key risks and responsibilities.”
🎯 Great for legal advisors, startups, compliance teams.
13. Task Decomposition Prompt
“Act as a productivity coach. Break the goal ‘publish a 30-page eBook in 4 weeks’ into weekly and daily tasks. Include writing, editing, and promotion.”
🎯 Writers, coaches, project managers.
14. Content Repurposing Prompt
“Take this 1,000-word article and break it down into: one Twitter thread, one Instagram caption, and a short LinkedIn carousel outline.”
🎯 Social media managers, content teams.
15. Claude as an Idea Generator Prompt
“Act as an innovation coach. Ask me 3 questions about my business, then suggest 5 product ideas that use AI to improve efficiency or customer experience.”
🎯 Entrepreneurs, SaaS teams, AI product builders.
Related Article: Claude AI Tool Use | How to Use Claude 3.5 AI Agents
How to Get Better Results With Claude 3.5 Agents
✅ Use Specific Roles
Claude responds better when told who to become. Use phrases like:
- “You are a market research analyst.”
- “Act like a UX copywriter.”
✅ Provide Clear Context
Instead of just saying “write a report”, add:
- The audience (e.g., investors, students, general public)
- The format (PDF, email, slides)
- The goal (persuade, inform, summarize)
✅ Use Follow-Up Prompts
Claude agents love collaboration. After its first output, ask:
- “Can you add stats to support these claims?”
- “Now rewrite this for a 10-year-old.”
Bonus: Prompt Packs You Can Build
Want to scale Claude even more? Create your own prompt packs by theme:
| Category | Prompt Pack Ideas |
|---|---|
| Startup Toolkit | Pitch deck creator, competitor analysis, pricing model prompts |
| Writer’s Room | Article drafts, tone editors, outline generators |
| Educator Pack | Lesson plans, quiz builders, content simplifiers |
| Developer Tools | Code explainers, documentation prompts, bug catchers |
Bundle these prompts into Notion docs, PDFs, or Claude’s memory (when supported) to reuse easily.
Final Thoughts: Claude 3.5 + Smart Prompts
Claude 3.5 Agents aren’t just smarter — they’re more collaborative. With the right prompts, you can:
- Brainstorm like a pro
- Write like a top-tier copywriter
- Plan like a strategist
- Learn like a researcher
Don’t just type — prompt with purpose.
🚀 Jam’s Final Tip:
Start small, then build chains. Claude remembers what you say in a session, so prompt → revise → build on it. That’s how you turn AI into your co-pilot.
