6 AI Agent
Use Cases

Everything you need to understand, try, and build each one — with real tools, steps, and prompts.

📧 Email & Calendar Agent

Stop drowning in your inbox. An agent reads, prioritises, drafts replies, and books meetings — you just approve before anything sends.

How to build it — 5 steps
1

Connect Gmail/Outlook to n8n or Zapier

Authenticate your email. Set trigger: "New email received."

2

Add a Claude "classify" step

Send subject + body. Ask: "Is this Urgent / Reply needed / FYI / Junk?"

3

Branch by classification

Urgent → priority list. Reply needed → draft. Junk → archive.

4

Generate draft reply

Pass email + your tone context to Claude. Save as Gmail draft.

5

Add calendar scheduling

Use Calendly or Google Calendar API to check availability and suggest meeting slots.

Best tools to use
🔧
n8n Free
Build the full workflow — no per-task costs
🤖
Claude Freemium
Classify emails, write drafts in your voice
📅
Reclaim.ai Freemium
AI calendar that protects focus time
📮
Superhuman Paid
AI email client with built-in triage
Starter prompt

"Read this email and classify it as [URGENT], [REPLY_NEEDED], [FYI], or [JUNK]. State why in one sentence. Email: {{email_body}}"

📊 Research & Reports Agent

Give it a question. Get back a structured, sourced report — in minutes, not hours. Perfect for market research, competitor analysis, or briefing documents.

How to build it — 5 steps
1

Define your report template

Sections: Executive Summary, Overview, Key Players, Trends, Recommendations.

2

Set up a web search tool

Use Tavily API or Serper API to give the agent real-time search.

3

Write a "research planner" prompt

Ask Claude to decompose your topic into 5 sub-questions before searching.

4

Run parallel searches

One search per sub-question. Pass all results to Claude to synthesise.

5

Assemble and export

Combine sections into a final document. Export as PDF or Word.

Best tools to use
🔬
Claude Deep Research Freemium
Built-in research mode — web search + synthesis
🌐
Perplexity Freemium
AI search engine with cited answers
📎
NotebookLM Free
Research your own uploaded documents
Starter prompt

"I want to research: {{topic}}. Break this into 5 specific sub-questions that together give a complete picture. Return as a numbered list only."

🛍️ Customer Support Agent

Handle 80% of repetitive questions automatically — so you only deal with the 20% that genuinely needs you. Runs 24/7, never loses patience.

How to build it — 6 steps
1

Build your knowledge base

Write your 20 most common Q&As + policies + product info.

2

Set up RAG (retrieval)

Use Botpress or Supabase+pgvector so the agent can search your docs.

3

Write the system prompt

Define brand voice, what the agent can/can't do, and escalation rules.

4

Connect to a chat widget

Embed on your site using Tidio, Crisp, or a custom widget.

5

Test with edge cases

Try angry customers, unusual questions, discount attempts. Refine.

6

Add escalation + logging

Route unresolved chats to Slack. Log all conversations to improve over time.

Best tools to use
💬
Tidio Freemium
Affordable AI chatbot for small businesses
🧩
Voiceflow Freemium
Visual agent builder — connects to Claude
💬
Intercom Fin Paid
Enterprise-grade, resolves tickets automatically
System prompt foundation

"You are a friendly support agent for {{company}}. Acknowledge emotion first, then solve. If unresolved after 2 messages, say: 'Let me connect you with our team.'"

📣 Marketing & Content Agent

Brief it once. Get a full content calendar with posts, captions, and email copy — all tailored to your brand voice. Consistent content without the burnout.

How to build it — 5 steps
1

Create your brand voice document

Tone, banned phrases, 3 example posts, your audience persona. One page.

2

Build a content brief template

Fields: Topic, Goal, Key message, Channel, CTA. Fill once per campaign.

3

Write channel-specific prompts

One prompt per channel with format rules (length, hashtags, tone).

4

Automate with n8n or Zapier

New row in content calendar → generate content → save drafts to Notion.

5

Review before publishing

Automate creation, not publishing — until you fully trust the output.

Best tools to use
🤖
Claude Freemium
Best for brand voice + long-form content
📅
Buffer AI Freemium
Write + schedule social posts in one place
📧
Mailchimp AI Freemium
Email subject lines + body copy generation
Content repurposing prompt

"Take this blog post and create: (1) a LinkedIn post, (2) 3 Instagram captions, (3) an email newsletter section. Match my brand voice. Post: {{content}}"

💻 Coding Agent

Describe what you want built. A coding agent writes it, runs it, finds the bugs, fixes them, and keeps going until it works. No code knowledge required to start.

How to build it — 5 steps
1

Start with Claude Code or Cursor

Install Claude Code via npm or download Cursor IDE. Both are agent-ready.

2

Write a clear specification

Language, inputs, outputs, edge cases, libraries. More detail = better first draft.

3

Run in a sandbox first

Use a virtual environment or Docker so the agent can execute code safely.

4

Review diffs, not just output

Check git diff before merging. Agents can make unexpected changes elsewhere.

5

Add tests as a feedback loop

Give the agent a test suite. Instruct it to keep running until all tests pass.

Best tools to use
Claude Code Freemium
Terminal agent that reads your whole codebase
🌊
Cursor Freemium
AI-native IDE, best project context awareness
🔮
Replit Agent Freemium
Describe an app — Replit builds & deploys it
Feature spec prompt

"Build a {{language}} function that takes {{input}}, returns {{output}}, handles {{edge_cases}}, includes error handling and comments. Write tests alongside it."

🔗 Workflow Automation Agent

Connect your tools. Define the triggers. Let agents move data and fire actions automatically — the highest-leverage use of AI for any professional.

How to build it — 6 steps
1

Map your most repetitive task

Pick something you do 3× a week that always follows the same pattern.

2

Write out the steps in plain English

"When X happens, do A, then B, if C do D, else do E, then notify me."

3

Set up n8n or Make.com

Start with a template. Customise rather than build from scratch.

4

Add an AI decision node

Use Claude to classify, score, or enrich data mid-workflow.

5

Test on 5 real examples

Check every step before enabling automatic triggers.

6

Monitor and improve

Set up error alerts. Review logs weekly. Refine as you go.

Best tools to use
🔧
n8n Free
Open-source, self-hostable, most powerful free option
Zapier Freemium
Easiest to start — 6,000+ app integrations
🔮
Make.com Freemium
Visual builder, more powerful than Zapier
Routing decision prompt

"Classify this enquiry as [HIGH_PRIORITY], [STANDARD], or [SPAM]. High priority = budget over £10k or urgent deadline. Return label + one-line reason. Enquiry: {{text}}"