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What is this strategy?

Fix at the Point of Error is a prompting strategy that focuses on making targeted adjustments to your prompts when they don’t perform as expected. Rather than rewriting entire prompts, this approach identifies specific issues and addresses them with precise modifications.

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Why It’s Important

Fixing at the point of error helps create more effective prompts with less effort. This approach:
  • Saves time by avoiding complete rewrites
  • Helps identify specific issues in complex prompts
  • Creates a clearer understanding of what works and what doesn’t
  • Enables incremental improvements through testing
  • Builds your prompt engineering skills through focused problem-solving
The more complicated your prompt, the harder it is to identify the point of error, so test as you’re building.

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Watch How to Apply It

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Step by Step

1

Identify the Specific Issue

Pinpoint exactly what’s not working in your current prompt:
  • Is it giving too much or too little information?
  • Is it off-topic or missing key elements?
  • Is it structured in a confusing way?
  • Is it lacking necessary context or details?
Think of prompt refinement like adjusting a recipe. You wouldn’t throw out the whole dish if it just needs a bit more salt.
2

Make Targeted Adjustments

Modify only the specific elements that need fixing:
  • Add structure if the response is too vague or unorganized
  • Specify content and depth if detail level is wrong
  • Include examples if the AI isn’t understanding your intent
  • Add engagement elements if the content is dry or uninspiring
Avoid changing too many elements at once, or you won’t know which change fixed the issue
3

Test Your Adjusted Prompt

Evaluate how well your changes addressed the problem:
  • Compare the new output to the previous one
  • Check if the specific issue has been resolved
  • Look for any new issues that might have been introduced
  • Consider if further refinements are needed
Testing frequently during development helps catch issues before they become complex problems
4

Refine and Iterate

Continue making focused improvements:
  • Address any remaining or new issues one at a time
  • Keep a record of what changes worked and what didn’t
  • Consider using Playlab’s “Fix at the Point of Error” tool
  • Seek feedback from others to identify issues you might miss

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Example: Evolution of a Prompt

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Initial Prompt

Initial Prompt

Create a history lesson plan about World War II for high school students.
This prompt is too vague and doesn’t provide enough specifics for the AI to generate a useful lesson plan.

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Adding Structure

Adding Structure

Create a history lesson plan about World War II for high school students. Include:
  1. Lesson objectives
  2. Key topics to cover
  3. A timeline of major events
  4. Suggested activities
We’ve added structure to the prompt, addressing the vagueness. However, it still lacks specificity about the content and doesn’t guide the AI on the depth of information needed.

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Specify Content and Depth

Specify Content and Depth

Create a history lesson plan about the causes and major events of World War II for 11th grade students. Include:
  1. 3-4 specific lesson objectives
  2. 5 key topics to cover, focusing on the European theater
  3. A timeline of 7-10 major events from 1939-1945
  4. 2-3 suggested activities, including one analytical writing task
We’ve specified the focus (causes and major events), grade level, and added more details to each section. However, it doesn’t address the need for engaging content or historical perspectives.

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Add Engagement and Perspectives

Add Engagement and Perspectives

Create an engaging history lesson plan about the causes and major events of World War II for 11th grade students. Include:
  1. 3-4 specific lesson objectives that promote critical thinking
  2. 5 key topics to cover, focusing on the European theater
  3. A timeline of 7-10 major events from 1939-1945
  4. 2-3 suggested activities, including one analytical writing task and one group discussion
  5. 2-3 primary source excerpts to analyze
  6. Discussion questions that encourage students to consider multiple historical perspectives
We’ve added elements to make the lesson more engaging and included primary sources and multiple perspectives. The prompt now guides the AI to create a more comprehensive and interactive lesson plan.

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Ensure Accessibility and Assessment

Ensure Accessibility and Assessment

Create an engaging and accessible history lesson plan about the causes and major events of World War II for 11th grade students, including accommodations for diverse learners. Include:
  1. 3-4 specific lesson objectives that promote critical thinking
  2. 5 key topics to cover, focusing on the European theater
  3. A timeline of 7-10 major events from 1939-1945
  4. 2-3 suggested activities, including one analytical writing task and one group discussion
  5. 2-3 primary source excerpts to analyze, with suggestions for scaffolding for struggling readers
  6. Discussion questions that encourage students to consider multiple historical perspectives
  7. One formative assessment idea to check for understanding
  8. A brief suggestion for differentiating the lesson for advanced and struggling learners
In this final refinement, we’ve addressed accessibility and assessment, ensuring the lesson plan is inclusive and includes a way to check student understanding. The prompt now guides the AI to create a comprehensive, engaging, and adaptable lesson plan.

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Best Practices for Fixing at the Point of Error

Test Frequently

• Test your prompts during development• Identify issues early before they compound• Compare outputs after each change• Document what works and what doesn’t• Create a testing workflow that suits your needs

Make Targeted Adjustments

• Change one element at a time• Be specific about what you’re trying to fix• Use clear, precise language in your adjustments• Keep track of each change you make• Understand the purpose behind each modification

Seek Diverse Feedback

• Get input from others with different perspectives• Test your prompt with various use cases• Consider how different users might interpret results• Look for blind spots in your thinking• Be open to unexpected feedback

Be Patient and Persistent

• Recognize that perfecting prompts takes time• Celebrate incremental improvements• Learn from unsuccessful attempts• Develop your intuition through practice• Remember that prompt engineering is both art and science

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Frequently Asked Questions

Identifying the problematic part of a prompt often requires systematic testing. Try removing or modifying different sections of your prompt one at a time to see which changes affect the output. You can also try asking the AI directly to explain which parts of your prompt might be causing confusion. The Playlab “Fix at the Point of Error” tool can help you be metacognitive about your prompt by analyzing potential sources of confusion.
This is a normal part of the prompt engineering process! If your changes make things worse, simply revert to the previous version and try a different approach. Keep a record of what you’ve tried and the results, so you can learn from each attempt. Remember that prompt engineering often involves some trial and error, even for experienced practitioners.
As a general rule, make the smallest change that could reasonably fix the issue you’ve identified. If you change too many elements at once, you won’t know which specific modification solved the problem. Think of it like debugging code—isolate variables and test one change at a time whenever possible.

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Need Support?

If you need help with applying the Fix at the Point of Error strategy in Playlab:

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Last updated: March 23, 2025