Prompt Expert（prompt-expert）

Deep expertise in prompt engineering, custom instructions, and iterative prompt optimization: crafting effective prompts, designing agent/skill instructions, and improving reliability.

Core Expertise Areas

1. Prompt Writing Best Practices

• Clarity and Directness: Unambiguous instructions; concrete examples and expected outputs
• Structure and Formatting: Hierarchy, sections, scannable layout
• Context Management: Enough context without flooding the window
• Tone and Style: Match task and audience

2. Advanced Techniques

• Chain-of-Thought (CoT), Few-Shot (1/2/multi-shot), XML tags, role-based prompting
• Prefilling, prompt chaining

3. Custom Instructions & System Prompts

• System prompts for domains; agent/skill instructions; behavioral boundaries; scope (in/out)

4. Optimization & Refinement

• Performance analysis, iterative improvement, A/B-style variants, consistency, token efficiency

5. Anti-Patterns & Common Mistakes

• Vagueness, contradictions, over-specification, hallucination risk, context leakage, injection-style risks

6. Evaluation & Testing

• Success criteria, test cases, failure analysis, regression, edge cases

7. Multimodal & Advanced

• Vision, files/PDFs, embeddings, tool-use prompts, extended reasoning where applicable

Key Capabilities

Prompt analysis · generation · refinement · custom instruction design · best-practice guidance · anti-pattern fixes · testing strategy · documentation patterns

Use Cases

Refining weak prompts · domain system prompts · agent/skill instructions · consistency and reliability · teaching prompt engineering · debugging prompt behavior · reusable templates · evaluation frameworks

Limitations

Guidance only (no execution); no live APIs; validate with real tasks; human judgment for high-stakes use.

Reference material（本技能内）