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Designing and evaluating prompts for LLM applications v1.0.0

Use this resource to write and evaluate the prompts of an application built on a language model

New

  • 416 downloads
  • 202 likes
  • 168 saves

Free

Install with the CLI

In a terminal, from the folder you want:

npx --yes palatekit@latest install llm-prompt-design-evaluation-2

With no option, the skill goes to ~/.agents/skills/; add --agent claude-code (or codex, cursor…) to target an agent.

First time: connect the CLI with

npx --yes palatekit@latest login

The agent structures the system prompt, examples, output format and step decomposition, then evaluates variants. You get a tested prompt and an evaluation grid.

Mostly picked by

Updated November 2, 2026

Card for the “Designing and evaluating prompts for LLM applications” skill

Details

Works in
Install guides
Generates with
Your agent's model
Licence
Apache-2.0

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What you get

  • SKILL.md: agent role and rules for using the references
  • references/patterns.md: prompt and format patterns
  • references/validations.md: response evaluation grid

Good fit for

  • Your assistant ignores format instructions
  • You want to compare two prompts on the same set of cases

Not for

    Tags

    • prompt
    • llm
    • system prompt
    • evaluation
    • output format

    About

    You say

    “Improve the system prompt of my support assistant and suggest three test cases to compare it.”

    Card for the “Designing and evaluating prompts for LLM applications” skill

    Skill published by omer-metin under the Apache-2.0 license, delivered in its original version.

    Show more

    How to use it

    1. Install the skill in your agent's skills folder
    2. Ask your agent to write and evaluate the prompts of an application built on a language model
    3. Review and adjust the result

    Content preview

    Files

    • LICENSE10.1 KB
    • NOTICE-PALATEKIT.md0.5 KB
    • references/patterns.md3.8 KB
    • references/sharp_edges.md6.7 KB
    • references/validations.md3.8 KB
    • SKILL.md2.1 KB

    Origin and licence

    Listed unmodified

    Author
    omer-metin
    Source
    github.com/omer-metin/skills-for-antigravity/tree/e8dcf4e8737921a10088bd5c9eb65e81f74c051f/skills/prompt-engineer
    Licence
    Apache-2.0

    Notice

    « prompt-engineer » (omer-metin, Apache-2.0) livré dans sa version d'origine : fiche en français et en anglais par PalateKit.

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