Free AI Prompt Library: Share Prompt Templates in Markdown

# Prompt Title

## Role
You are an expert assistant.

## Task
Describe exactly what you want the model to do.

## Context
Add any background the model needs.

## Constraints
- Keep the answer concise
- Ask for clarification if the request is ambiguous

## Output format
Reply in Markdown with a short summary first, then the details.

## Example
Input:
Summarize the text below in three bullet points.

Output:
- First key point
- Second key point
- Third key point

# System Prompt: {{assistant_name}}

## Identity
You are {{assistant_name}}, a helpful assistant for {{audience}}.

## Goals
- Give accurate, practical answers
- Match the user's level of expertise
- Say so plainly when you are not sure

## Tone and style
- Friendly, direct and concise
- Use short paragraphs and bullet lists
- Avoid jargon unless the user uses it first

## Rules
- Never invent facts, figures or sources
- Ask one clarifying question when a request is ambiguous
- Decline requests that are outside {{scope}}

## Output format
Start with the answer, then add steps or details if they help.

# AGENTS.md

Instructions for AI coding agents working in this repository.

## Project overview
{{one or two sentences about what the project does}}

## Commands
- Install dependencies: `{{install command}}`
- Run the tests: `{{test command}}`
- Run the linter: `{{lint command}}`

## Code style
- Follow the existing patterns in the file you are editing
- Keep functions small and give things clear names
- Add or update tests with every change

## Rules
- Never commit secrets or credentials
- Ask before deleting files or changing the database schema
- Summarize what you changed and why at the end of each task

# Code Review Prompt

## Role
You are a senior {{language}} engineer doing a careful code review.

## Task
Review the code below and report problems in order of severity.

## Focus on
1. Bugs and edge cases
2. Security issues
3. Performance problems
4. Readability and naming

## Rules
- Quote the exact line for every issue
- Explain why it is a problem in one or two sentences
- Suggest a concrete fix as a code block
- Skip style nitpicks unless they hide a bug

## Output format
A Markdown table with the columns Severity, Line, Issue and Fix, followed by a short overall verdict.

## Code
{{paste your code here}}

# Summarize a Document

## Task
Summarize the text below for {{audience}}.

## Requirements
- Start with a one-sentence summary
- Follow with the five most important points as bullets
- Keep names, numbers and dates exactly as written
- Flag anything that looks uncertain or contradictory

## Length
No more than {{word_limit}} words.

## Text
"""
{{paste the text here}}
"""

# Extract Structured Data as JSON

## Task
Read the text below and extract the fields listed in the schema.

## Schema
```json
{
  "name": "string",
  "company": "string or null",
  "date": "YYYY-MM-DD or null",
  "amount": "number or null",
  "summary": "string, at most 30 words"
}
```

## Rules
- Return valid JSON only, with no extra commentary
- Use null when a field is missing from the text
- Do not guess values that are not stated

## Text
{{paste the text here}}

# Few-Shot Classification Prompt

## Task
Classify each customer message as Praise, Complaint, Question or Other.

## Examples
Message: "The new dashboard is so much faster, thank you!"
Label: Praise

Message: "I was charged twice this month."
Label: Complaint

Message: "Can I export my data as a CSV file?"
Label: Question

## Rules
- Reply with the label only
- Pick Other when no label fits

## Message to classify
{{paste the message here}}

# Image Generation Prompt

## Subject
{{main subject, for example a lighthouse on a rocky coast}}

## Style
{{art style, for example watercolor with soft pastel colors}}

## Composition
- Camera angle: {{wide shot, close-up or aerial view}}
- Lighting: {{golden hour, studio light or overcast}}
- Mood: {{calm, dramatic or playful}}

## Details to include
- {{first detail}}
- {{second detail}}

## Avoid
- Text or watermarks in the image
- Distorted hands or faces

## Aspect ratio
{{16:9, 1:1 or 9:16}}