---
title: "AI Quick Tips 261: Prompt template with best practices baked in"
description: Master prompt engineering with our template for Google’s Gemini 3 model, designed to enhance output precision and consistency through structured and detailed input guidelines.
image: https://thoughtsbrewing.com/hubfs/AI%20Quick%20Tips-1.jpg
---
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# AI Quick Tips 261: Prompt template with best practices baked in
December 13, 2025
 [Damien Griffin](https://thoughtsbrewing.com/blog/author/damien)
This prompt template is technically for Google’s [Gemini](https://thoughtsbrewing.com/blog/tag/gemini) 3 model but I think that it is relevant for many other models.
There are a lot of really important [prompt engineering](https://thoughtsbrewing.com/blog/tag/prompt-engineering) elements in here that can help people get consistently better output. This isn’t something that you have to use every time but I think that the more important your output, the more structured your input will need to be.
#### I also made a video in case you would rather watch:
## Enough build-up, here is the template -
> \
>
> You are Gemini 3, a specialized assistant for \[Insert Domain, e.g., Data Science\].
>
> You are precise, analytical, and persistent.
>
> \
>
> \
>
> 1. \*\*Plan\*\*: Analyze the task and create a step-by-step plan.
> 2. \*\*Execute\*\*: Carry out the plan.
> 3. \*\*Validate\*\*: Review your output against the user's task.
> 4. \*\*Format\*\*: Present the final answer in the requested structure.
>
> \
>
> \
>
> \- Verbosity: \[Specify Low/Medium/High\]
>
> \- Tone: \[Specify Formal/Casual/Technical\]
>
> \
>
> \
>
> Structure your response as follows:
>
> 1. \*\*Executive Summary\*\*: \[Short overview\]
> 2. \*\*Detailed Response\*\*: \[The main content\]
>
> \
### I will point out a few of the important elements -
- XML tags are used to separate and clearly identify the different sections
- I.e. \ and \
- These are called delimiters
- Numbered lists are used to show/confirm the order of steps
- [Markdown](https://thoughtsbrewing.com/blog/ai-quick-tips-246-basic-markdown-can-add-some-structure-to-your-prompts-part-i) is used to “bold” text since plain text can’t be bolded
- Bulleted lists are used where order of steps aren’t important
- Square brackets are used to indicate that something use-case specific should be replaced or entered each time the prompt is used
### Using this level of structure in your prompts allows you to -
- Be precise and direct
- Use consistent structure
- Control output verbosity
- Really important with Gemini 3 specifically
- Prioritize critical instructions
- Identify a structure for long contexts
- Etc.
## You’ve Got Tips. Now Build the Habits.
The free **ChatGPT Kickstarter Email Course** helps you turn “good advice” into real results—one short lesson at a time.
[Kickstart My AI Skills →](https://thoughtsbrewing.com/en-us/chatgpt-kickstarter-email-course)
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[AI Quick Tips](https://thoughtsbrewing.com/blog/tag/ai-quick-tips), [AI](https://thoughtsbrewing.com/blog/tag/ai), [Prompt Engineering](https://thoughtsbrewing.com/blog/tag/prompt-engineering), [Intermediate](https://thoughtsbrewing.com/blog/tag/intermediate), [Google](https://thoughtsbrewing.com/blog/tag/google), [Gemini](https://thoughtsbrewing.com/blog/tag/gemini)
## Comments
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"text" : "This prompt template is technically for Google’s Gemini 3 model but I think that it is relevant for many other models. There are a lot of really important prompt engineering elements in here that can help people get consistently better output. This isn’t something that you have to use every time but I think that the more important your output, the more structured your input will need to be. I also made a video in case you would rather watch: Enough build-up, here is the template - You are Gemini 3, a specialized assistant for [Insert Domain, e.g., Data Science]. You are precise, analytical, and persistent. **Plan**: Analyze the task and create a step-by-step plan. **Execute**: Carry out the plan. **Validate**: Review your output against the user's task. **Format**: Present the final answer in the requested structure. - Verbosity: [Specify Low/Medium/High] - Tone: [Specify Formal/Casual/Technical] Structure your response as follows: **Executive Summary**: [Short overview] **Detailed Response**: [The main content] I will point out a few of the important elements - XML tags are used to separate and clearly identify the different sections I.e. and These are called delimiters Numbered lists are used to show/confirm the order of steps Markdown is used to “bold” text since plain text can’t be bolded Bulleted lists are used where order of steps aren’t important Square brackets are used to indicate that something use-case specific should be replaced or entered each time the prompt is used Using this level of structure in your prompts allows you to - Be precise and direct Use consistent structure Control output verbosity Really important with Gemini 3 specifically Prioritize critical instructions Identify a structure for long contexts Etc. You’ve Got Tips. Now Build the Habits. The free ChatGPT Kickstarter Email Course helps you turn “good advice” into real results—one short lesson at a time. Kickstart My AI Skills →",
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