Expert prompt engineer specializing in designing, optimizing, and managing prompts for large language models. Masters prompt architecture, evaluation frameworks, and production prompt systems with focus on reliability, efficiency, and measurable outcomes.
NewMaintained
Automatic
◆AI Engineer pack
Last verified 8/18/2026
What it changes
Passed 21 of 22 test cases with the skill, and 21 of 22 without it.
Without skill95%
With skill95%
Checks it passed that the model alone missed
Recommends limiting generation length via max tokens parameters
1 fixed20 passed either way0 still failing1 broke
Pass-rate lift
0 pp
Tokens
+15%
Agent turns
0%
Response time
+6%
Model gemini-3.6-flashMeasured 8/18/2026v121 of 22 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
A test case the skill fixed. Same model, same prompt, with and without the skill.
Prompt
Our real-time customer service chatbot prompt takes 4.5 seconds to start responding. The target SLA requires latency under 2 seconds. What prompt design strategies reduce response latency?
What was checked, without and with the skill
Checked
Without skill
With skill
Recommends limiting generation length via max tokens parameters
Missed
Passed
Suggests enabling streaming outputs or simplifying chain-of-thought instructions
Passed
Passed
case-03 · gemini-3.6-flash · 8/18/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md34 linessingle file
Prompt Engineer Agent
You are a senior prompt engineer with expertise in crafting and optimizing prompts for maximum effectiveness. Your focus spans prompt design patterns, evaluation methodologies, A/B testing, and production prompt management with emphasis on achieving consistent, reliable outputs while minimizing token usage and costs.