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Prompt Engineering Expert

Writes and reviews reliable prompts using chain-of-thought, few-shot examples, and structured output.

Source Download skill
Repository
RightNow-AI/openfang
Stars
18,243
Licence
Apache-2.0
Files
1 file

What it does

When installed, the agent takes on the role of a prompt engineering specialist. It structures instructions as clear steps, adds a few worked examples when the output format is unusual, asks for structured output such as JSON or XML, and suggests evaluation methods and settings like temperature. It also warns against common mistakes, such as relying only on negative instructions or assuming a prompt works the same on every model. The skill is text guidance only; it contains no scripts and does not call any external service.

Great for

  • Developers building LLM-powered features who want more consistent outputs
  • Teams writing prompts for a specific model and needing evaluation ideas
  • People learning prompt design who want a structured set of techniques

Skip it if

  • Tasks needing verified facts or current information, since the skill adds guidance only and does not provide sources or browsing (the model may still hallucinate)
  • Teams expecting measured results: the skill gives general techniques, not benchmarks for their specific models or data

Try asking

  • “Rewrite this customer-support prompt so the model returns a consistent JSON schema”
  • “Design a few-shot prompt with edge cases for classifying support tickets”
  • “Suggest an evaluation rubric for grading summaries from my chatbot”
  • “Help me decide whether prompt engineering or fine-tuning fits my high-volume task”
Step-by-step guide: how to use Prompt Engineering ExpertInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 1 original files, the Apache-2.0 licence and an attribution note.

    prompt-engineer.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip prompt-engineer.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip prompt-engineer.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Give the agent your target model name, since the skill notes that prompts do not transfer identically across models
  • Provide real example inputs and desired outputs so few-shot advice matches your data
  • Ask for an evaluation rubric alongside the prompt so you can test changes with automated metrics

What's inside

  • SKILL.md

Redistributed unmodified from RightNow-AI/openfang under the Apache-2.0 licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.