AI prompt for writing a personal statement

Written for Claude. Compiled as a writing task — producing original prose: articles, essays, stories, letters, and long-form copy.

<role>
You are a senior writer and editor with a decade of experience in this exact form.
</role>

<audience>
This is for an admissions tutor reading two hundred of these. Pitch the level of detail, vocabulary, and assumed background at that reader specifically, not at a general audience.
</audience>

<context>
What I have actually done: {{experience}}. Why this subject: {{motivation}}. What I want to do afterwards: {{goal}}.
</context>

<task>
Write a personal statement for {{application}}.
</task>

<constraints>
- Open with something specific I did, not with a statement about the field.
- Every claim about my ability must be evidenced by something in my experience.
- Show the thinking behind a choice, not just the outcome.
- Avoid from a young age.
- Avoid i have always been passionate about.
- Avoid in today's world.
- Write in plain, direct prose. Do not restate the prompt, and do not open with a throat-clearing sentence.
- Vary sentence length. Do not begin consecutive sentences with the same word or structure.
- Do not invent facts, statistics, quotations, or attributed opinions.
</constraints>

<output_format>
Respond in plain prose. No markdown, no headings, no bullet points, no bold text. Length: 500 words. Treat this as a requirement, not a suggestion.
</output_format>

<success_criteria>
Before you finish, check the output against every item below and fix anything that fails.

- An admissions tutor could tell this from any other applicant's.
</success_criteria>

<before_you_start>
If anything above is unclear, or you are missing information you need, ask up to three specific clarifying questions before producing any output. Do not invent facts, names, numbers, sources, or quotations to fill a gap — if you do not know something, say so plainly.
</before_you_start>

Now, write a personal statement for {{application}}.

Open this in the prompt builder to add your own context and see what would improve it most.

What makes writing a personal statement hard to prompt for

Personal statements are read in batches of hundreds, so the opening line is doing almost all the work. The trap is writing about the subject rather than about what you actually did with it.

Why this prompt works

Background comes before the instruction

The model reads the situation before it learns what to do with it, which stops the instruction being diluted by everything that follows. The task is then restated as the final line, where models weight it most heavily.

Rules a writing task assumes but nobody writes down

Write in plain, direct prose. Do not restate the prompt, and do not open with a throat-clearing sentence. Vary sentence length. Do not begin consecutive sentences with the same word or structure. These are added automatically because leaving them implicit is the most common reason this kind of output disappoints.

Success criteria the model checks itself against

Stating how the output will be judged gives the model something concrete to verify before it finishes. Prompts without criteria produce work that is plausible but incomplete, because nothing defined when it was done.

Permission to ask instead of guess

This brief leaves room for interpretation, so the prompt tells the model to ask before inventing details. That converts a confidently wrong answer into a question you can actually answer.

What to replace

Check the output before you use it

• Read only the first sentence. Does it describe something you did, or something you feel?
• Every strength claimed should have a specific example attached somewhere.
• Cut anything a different applicant to the same course could have written.

The same prompt for other models

Identical content, packaged the way each model reads most reliably.

## Role

You are a senior writer and editor with a decade of experience in this exact form.

## Audience

This is for an admissions tutor reading two hundred of these. Pitch the level of detail, vocabulary, and assumed background at that reader specifically, not at a general audience.

## Context

What I have actually done: {{experience}}. Why this subject: {{motivation}}. What I want to do afterwards: {{goal}}.

## Task

Write a personal statement for {{application}}.

## Constraints

- Open with something specific I did, not with a statement about the field.
- Every claim about my ability must be evidenced by something in my experience.
- Show the thinking behind a choice, not just the outcome.
- Avoid from a young age.
- Avoid i have always been passionate about.
- Avoid in today's world.
- Write in plain, direct prose. Do not restate the prompt, and do not open with a throat-clearing sentence.
- Vary sentence length. Do not begin consecutive sentences with the same word or structure.
- Do not invent facts, statistics, quotations, or attributed opinions.

## Output format

Respond in plain prose. No markdown, no headings, no bullet points, no bold text. Length: 500 words. Treat this as a requirement, not a suggestion.

## Success criteria

Before you finish, check the output against every item below and fix anything that fails.

- An admissions tutor could tell this from any other applicant's.

## Before you start

If anything above is unclear, or you are missing information you need, ask up to three specific clarifying questions before producing any output. Do not invent facts, names, numbers, sources, or quotations to fill a gap — if you do not know something, say so plainly.

Now, write a personal statement for {{application}}.

**Task**

Write a personal statement for {{application}}.

**Role**

You are a senior writer and editor with a decade of experience in this exact form.

**Audience**

This is for an admissions tutor reading two hundred of these. Pitch the level of detail, vocabulary, and assumed background at that reader specifically, not at a general audience.

**Context**

What I have actually done: {{experience}}. Why this subject: {{motivation}}. What I want to do afterwards: {{goal}}.

**Constraints**

- Open with something specific I did, not with a statement about the field.
- Every claim about my ability must be evidenced by something in my experience.
- Show the thinking behind a choice, not just the outcome.
- Avoid from a young age.
- Avoid i have always been passionate about.
- Avoid in today's world.
- Write in plain, direct prose. Do not restate the prompt, and do not open with a throat-clearing sentence.
- Vary sentence length. Do not begin consecutive sentences with the same word or structure.
- Do not invent facts, statistics, quotations, or attributed opinions.

**Output format**

Respond in plain prose. No markdown, no headings, no bullet points, no bold text. Length: 500 words. Treat this as a requirement, not a suggestion.

**Success criteria**

Before you finish, check the output against every item below and fix anything that fails.

- An admissions tutor could tell this from any other applicant's.

**Before you start**

If anything above is unclear, or you are missing information you need, ask up to three specific clarifying questions before producing any output. Do not invent facts, names, numbers, sources, or quotations to fill a gap — if you do not know something, say so plainly.

Now, write a personal statement for {{application}}.