LAI: Generate or Refine System Prompt

Trust Score 88/100

Generate or iteratively refine a system prompt for a Langium DSL project.

triggers:generate system promptrefine system promptlai gen sysprompt

Generate or Refine a System Prompt

This skill covers the full lifecycle of a system prompt for a Langium DSL — from initial generation to iterative refinement. It can bootstrap a new prompt via lai gen sysprompt or guide targeted refinements based on evaluation results and language changes.

What it does

Generates a new system prompt from a language descriptor if none exists.
Diagnoses evaluation failures and suggests focused prompt edits.
Provides structure and guidelines for prompt sections (Introduction, Grammar Overview, Validation Rules, Scoping, Examples, Common Mistakes, Generation Guidelines).

When to use

You don't have a system prompt yet and need to bootstrap one.
Evaluation runs show low pass rates or recurring failure categories.
Language descriptor or validator rules changed and the prompt needs updating.

Example workflow

lai gen sysprompt to produce language.sysprompt.md
Review evaluation results: lai show latest --verbose
Edit the prompt focusing on the failing categories (grammar, validation, scoping).
Re-run lai evaluate and compare runs.

Triggers

"generate system prompt"
"refine system prompt"
"lai gen sysprompt"

Audit Summary

Documentation-only skill for generating and refining system prompts in Langium DSL projects via the `lai` CLI. No bundled scripts to test. SKILL.md is well-structured with clear step-by-step instructions, common refinement patterns table, and iterative tips. Serves a niche audience of Langium DSL developers but provides genuine utility for that workflow.

Watch Out

Requires `lai` CLI installed and a Langium project with `lai init` completed
No scripts — purely instructional, depends on external `lai` tool

Notes

Clean skill, no security concerns. Documentation-only with no executable scripts. Well-written SKILL.md with good progressive disclosure and practical troubleshooting table.

Information

Repository: langium-ai
Stars: 24

Trust Score

Overall88

Security95

Code Quality82

Architecture78

Usefulness62

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