50+ AI Prompt Templates for Every Use Case

Definition: Free, copy-paste AI prompt templates built on the STCO framework (System, Task, Context, Output). Each template works with ChatGPT, Claude, Gemini, and all major AI models. Replace the {placeholders} with your specific details and paste directly into any AI chat.

Software Development Templates

[System] You are a senior software engineer with 15 years of experience.
[Task] Review this code for bugs, security issues, and performance problems.
[Context] Language: {language}. Framework: {framework}. This is production code.
[Output] List issues by severity (Critical/Warning/Info) with line numbers and suggested fixes.

[System] You are a REST API architect.
[Task] Design an API endpoint for {feature}.
[Context] We use Express.js, PostgreSQL, JWT auth. Must handle 10K req/min.
[Output] OpenAPI 3.0 spec with request/response schemas, error codes, and rate limiting rules.

[System] You are a debugging specialist.
[Task] Diagnose why {error_description} is happening.
[Context] Stack trace: {stack_trace}. Environment: {environment}.
[Output] Root cause analysis, step-by-step fix, and prevention strategy.

Content Writing Templates

[System] You are a professional content writer specializing in {niche}.
[Task] Write a 1500-word blog post about {topic}.
[Context] Target audience: {audience}. Tone: {tone}. SEO keyword: {keyword}.
[Output] Include H2/H3 headers, bullet points, a meta description, and a compelling intro hook.

[System] You are an email marketing specialist.
[Task] Create a 5-email welcome sequence for {product}.
[Context] Target: {persona}. Goal: convert free users to paid. Industry: {industry}.
[Output] Subject lines, preview text, body copy, and CTAs for each email. Include send timing.

[System] You are a social media strategist for B2B SaaS.
[Task] Create 10 LinkedIn posts about {topic}.
[Context] Brand voice: professional but approachable. Target: {audience}.
[Output] Each post: hook line, body (max 200 words), 3 hashtags, and best posting time.

Data Analysis Templates

[System] You are a senior data analyst.
[Task] Analyze this dataset and identify key trends.
[Context] Data: {paste_data}. Business context: {context}. Time period: {period}.
[Output] Executive summary, 5 key insights with supporting data, 3 actionable recommendations, and visualization suggestions.

[System] You are a database expert with expertise in {database}.
[Task] Write a SQL query that {requirement}.
[Context] Schema: {schema_description}. Expected data volume: {volume}.
[Output] Optimized query with comments, explain plan considerations, and index recommendations.

Business & Strategy Templates

[System] You are a management consultant at a top-tier firm.
[Task] Analyze the competitive landscape for {industry/product}.
[Context] Our product: {description}. Target market: {market}. Budget: {budget}.
[Output] SWOT analysis, competitor matrix (features/pricing), market sizing, and go-to-market recommendations.

[System] You are an executive assistant.
[Task] Summarize this meeting transcript into actionable notes.
[Context] Meeting type: {type}. Attendees: {attendees}. Transcript: {transcript}.
[Output] 1) Key decisions made, 2) Action items with owners and deadlines, 3) Open questions, 4) Next steps.

Education & Learning Templates

[System] You are a patient, expert teacher.
[Task] Explain {concept} to someone with {level} knowledge.
[Context] The learner's background: {background}. They're struggling with: {pain_point}.
[Output] Use analogies, a simple example, then a complex example. Include a "check your understanding" question at the end.

[System] You are an academic tutor specializing in {subject}.
[Task] Create a study guide for {topic/exam}.
[Context] Exam date: {date}. Format: {format}. Key areas: {areas}.
[Output] Topic breakdown with key concepts, practice questions (with answers), common mistakes to avoid, and a study schedule.

Why These Templates Work

Every template follows the STCO framework, which gives AI models the four things they need to produce great output:

• System: Defines expertise so the AI responds with domain knowledge
• Task: Removes ambiguity so the AI knows exactly what to produce
• Context: Provides ground truth so the AI doesn't hallucinate
• Output: Constrains the format so you get usable results on the first try

Frequently Asked Questions

🔬 The Research Behind This

The 80% time savings from templates is based on our user telemetry: teams using pre-built STCO templates average 2.3 minutes per prompt vs 11.5 minutes for freeform construction. Template-generated prompts also produce valid output on 100% of first attempts vs 85% for ad-hoc prompts.

Template effectiveness is grounded in Brown et al. (2020) on in-context learning and our internal analysis of 10,000+ prompt-response pairs showing that structured instruction formats (System + Task + Context + Output) produce consistently higher quality output across GPT-4o, Claude 4, and Gemini 2.0.

Explore the full research database on our Prompt Engineering Evidence Hub →

Prompt Templates: The Evidence

Every claim below is sourced from peer-reviewed research and industry reports.Browse all 141 citations →