hoangvantuan/prompt-generator-v2

Prompt Generator V2 — KERNEL Framework

Generate prompts that work on the first try. The KERNEL framework ensures every prompt has a clear goal, verifiable success criteria, and explicit constraints.

KERNEL at a Glance

Each letter is a checkpoint. Chi tiết + ví dụ before/after → kernel-framework.

| Principle | Check | Action if failing | |---|---|---| | Keep simple | Describe in one sentence? | Split into prompt chain | | Easy to verify | Stranger could verify? | Add measurable criteria | | Reproducible | Works in 30 days? | Remove temporal refs, add versions | | Narrow scope | One deliverable? | Extract goals into separate prompts | | Explicit constraints | 2-3 "do NOT" rules? | Add negative constraints | | Logical structure | Context→Task→Constraints→Format? | Restructure |

Workflow

Step 0: Determine Mode

| User input | Mode | Action | |---|---|---| | Vague request ("help me write a prompt for X") | Create | Go to Step 1 | | Existing prompt provided | Improve | Run KERNEL checklist against the prompt, diagnose which principles fail, fix targeted. Skip to Step 2 |

Step 1: Understand Intent

Extract or ask (max 3 questions — skip if the request already answers them):

1. What's the single goal? — If multiple goals detected, suggest splitting into a prompt chain
2. What does success look like? — Specific, verifiable criteria (numbers, formats, concrete deliverables)
3. What should it NOT do? — Constraints and exclusions

If the user provides a vague request, propose a draft immediately and iterate — action beats interrogation.

Step 2: Apply KERNEL

Transform intent into a structured prompt. Run each principle as a mental checklist using the table above. For detailed explanations, consult kernel-framework.

Step 3: Generate the Prompt

Use this structure. Include only relevant sections — omit what doesn't apply:

## Context
[Background information the AI needs. Keep minimal — only what's necessary to understand the task. Include domain, audience, and relevant technical context.]

## Task
[One clear, specific goal. Start with an action verb. This is the single sentence that passes the K-test.]

## Constraints
- [What to do — specific, measurable behaviors]
- Do NOT [negative constraint 1]
- Do NOT [negative constraint 2]
- [Additional bounds: length, format, libraries, scope limits]

## Output Format
[Exact structure of the expected output. Include: format (markdown, JSON, code), length bounds, sections/headers if applicable, delimiters.]

## Verification
[How to check success — specific criteria that make the E-principle concrete. Think: "I'll know this worked when..."]

Optional sections (include when they add value):

• Examples — When output quality depends on seeing patterns (2-3 examples: basic + edge case)
• Input — When the prompt processes structured data (describe format, required fields)
• Chain — When the task was split, show how prompts connect

Step 4: Verify with KERNEL Checklist

Before delivering, run this self-review:

• [ ] K: Can I describe this prompt's goal in one sentence?
• [ ] E: At least 2 measurable success criteria?
• [ ] R: No temporal references, no version-ambiguous terms?
• [ ] N: Exactly one deliverable per prompt?
• [ ] E: At least 2 explicit "do NOT" constraints?
• [ ] L: Follows Context → Task → Constraints → Format structure?
• [ ] No vague virtue words ("good", "helpful", "detailed") without concrete definition
• [ ] No contradictions (e.g., "be concise" + "cover everything")
• [ ] All implicit assumptions made explicit

Step 5: Deliver and Iterate

Present the prompt in a clean code block. If the original request was complex and got split:

• Show each prompt in the chain, numbered
• Explain how outputs feed into subsequent prompts
• Suggest which prompts can run in parallel vs sequential

Always offer: "Want me to adjust the constraints, add examples, or split this differently?"

Prompt Chaining

When a task is too complex for one prompt (fails N-principle), decompose into a chain. Each link:

• Has a single clear goal (passes all KERNEL checks independently)
• Produces output that feeds cleanly into the next prompt
• Can be verified independently before moving to the next step

Pattern: Task → subtask analysis → ordered chain with data flow

Example: "Build a REST API" →

1. Design data models (output: schema)
2. Generate endpoint specifications (input: schema → output: OpenAPI spec)
3. Implement endpoints (input: OpenAPI spec → output: code)
4. Write tests (input: code + spec → output: test suite)

Failure Modes

Các lỗi phổ biến cần nhận diện và tránh khi generate prompt:

| Failure mode | Dấu hiệu | Sửa | |---|---|---| | Prompt quá chung | Không constraint, output có thể là bất kỳ thứ gì | Thêm scope, format, length bounds | | Over-engineering | Prompt dài hơn output mong đợi, quá nhiều rules | Cắt constraints không ảnh hưởng output quality | | Constraint mâu thuẫn | "Be concise" + "Cover everything thoroughly" | Chọn 1, bỏ kia, hoặc chia scope | | Vague virtue stacking | "Good", "helpful", "engaging", "detailed" liên tiếp | Thay bằng criteria cụ thể, đo được | | Temporal drift | "Current", "latest", "recent" không pin version | Pin version/date cụ thể | | Missing audience | Prompt không nói cho ai → tone/depth không phù hợp | Thêm audience + expertise level | | Format ambiguity | Không nói rõ output format → AI tự chọn | Thêm Output Format section tường minh |