PromptEval
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Five tracks, one path. Every node is a lesson with a real technique, a judge, and a reference answer.

0
Beginner · 0/24 mastered
Negative constraints
Product Description Without Exaggeration
Today’s lesson · ~3 min
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01

Fundamentals: clarity and format

Precise instructions, output format, constraints, and persona — the base of every reliable prompt.
0/4
Clear, specific instructions
API Integration Guide Without Ambiguity
Structured output format
Launch in a single message
Negative constraints
Support reply under pressure
Role prompting (persona)
Technical data pipeline documentation with data engineer persona
4 lessons in this track on BasicUnlock→
02

Context and examples

Few-shot, delimiters, and persona to guide the model through context.
0/6
Few-shot (examples)
Support Ticket Classifier with Fixed Pattern
Delimiters / XML tags
Structure risk analysis with XML tags
Few-shot (examples)
Suspicious Transaction Classifier for Fintech
Role prompting (persona)
Medical consultation for patient with anxiety
Delimiters / XML tags
A contract summary in XML
Delimiters / XML tags
A product sheet in XML
6 lessons in this track on BasicUnlock→
03

Reasoning

Chain-of-thought and decomposition for tasks that require thinking in steps.
0/6
Chain-of-thought
Step-by-step reasoning in an allocation problem
Decomposition (least-to-most)
Database migration planning in stages
Zero-shot CoT ("think step by step")
Step-by-step stock reconciliation
Decomposition (least-to-most)
Feature launch plan in stages
Chain-of-thought
A load decision with the reasoning shown
Zero-shot CoT ("think step by step")
Incident severity
6 lessons in this track on BasicUnlock→
04

Communication for the right audience

Calibrate vocabulary and tone for whoever will read it.
0/4
Audience adaptation
Onboarding for non-technical users
Audience adaptation
Concept explanation for specific audience
Audience adaptation
A contract clause for a non-expert
Audience adaptation
Explaining a lab result to the patient
4 lessons in this track on BasicUnlock→
05

Guardrails and safety

Refuse, acknowledge, and redirect responsibly.
0/4
Safe refusal (guardrails)
Refuse without pushing away
Safe refusal (guardrails)
Empathetic refusal of out-of-scope compliance request
Safe refusal (guardrails)
Refusing an investment recommendation
Safe refusal (guardrails)
Refusing a coworker's confidential data
4 lessons in this track on BasicUnlock→
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