PromptCommunication

Prompt: the four-part prompt for Claude (Context, Goal, Example, Rules)

A fill-in-the-blanks prompt for any everyday task. Tested October 19, 2026 on Claude Sonnet 5.5 against lazy prompts on 5 tasks: 15/15 vs 11/15 on right facts, nothing made up and ready to use.

Works with: Claude, ChatGPT

The task

Get an answer you can use as-is for an everyday task: slides, a to-do list, a plain-words explanation, a polite reply.

Prompt
Context: [WHO YOU ARE AND WHAT'S GOING ON, IN ONE OR TWO LINES]
Goal: [WHAT YOU WANT AT THE END]
Example: [ONE LINE THAT LOOKS LIKE A GOOD ANSWER]
Rules: [WHAT IT MUST KEEP, WHAT IT MUST NOT ADD, HOW LONG]

[PASTE YOUR NOTES, EMAIL OR LETTER HERE]

How to use it

  1. Context: say who you are and what is going on, in one or two lines.
  2. Goal: say what you want at the end.
  3. Example: write one line that looks like a good answer.
  4. Rules: what it must keep, what it must not add, how long. Then paste your text.

What you get

An answer that keeps every date and fact, adds nothing you didn't give, and needs no edits. In our test the rules did the most work: 'add no places, prices, bookings or activities' turned a 300-word invented slide deck into 3 clean slides.

Example answer we got
Here's the text for your three slides:

**Slide 1 - Friday**
- Train leaves at 9:10 a.m.

**Slide 2 - Saturday**
- Museum at 2 p.m.

**Slide 3 - Sunday**
- Train home at 5:30 p.m.

I used one bullet per slide because you gave me one fact per day, and I didn't want to pad the slides with anything you didn't say. If you want more on screen, send me more details, like what you'll do Saturday morning, and I'll add them.

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