Langium-AI (LAI)

Trust Score 88/100

CLI to generate language descriptors, synthesize system prompts, and run evaluations to iteratively refine AI tooling for Langium projects.

triggers:lai initlai gen descriptorlai gen syspromptlai evaluatelanguage descriptorlangium

GitHub SKILL.md

What it does

A command-line toolkit that inspects a Langium project, generates a structured language descriptor, synthesizes system prompts from that descriptor, and runs evaluation suites to measure and improve prompt quality. It supports an iterative loop: generate descriptor → create sys prompt → evaluate → analyze → refine.

When to use it

Use LAI when you are building or maintaining a Langium-based DSL and need to automate descriptor creation, prompt engineering, and evaluation of LLM-driven tooling tied to your language. Ideal for bootstrapping integrations, generating system prompts, and running repeatable evals against models.

What's included

Scripts: CLI commands (init, gen descriptor, validate, gen sysprompt, evaluate, history, show, compare, stats, export) described in the skill.
References: No external references detected in the repo metadata, but the skill includes evaluation examples and configuration patterns.
Instructions: Step-by-step workflow for initializing a project, generating and refining descriptors, creating system prompts, writing .eval.ts evaluation files, running evaluations, and analyzing results.

Compatible agents

Best suited for agents and tooling that can run CLI workflows and TypeScript-based evaluation code (e.g., developer-focused agents, Copilot/Codex-style integrations, CLAUDE/LLM-based evaluation runners).

Audit Summary

LAI is a CLI for bootstrapping AI tooling in Langium projects — generating language descriptors, synthesizing system prompts, and running evaluations in a refinement loop. No bundled scripts were present to execute. The SKILL.md is a comprehensive usage guide with clear command examples, workflow overview, and progressive detail. Clean from a security perspective with no executable code or network calls.

Watch Out

Requires a Langium project to be useful
Niche audience — Langium DSL developers only

Notes

Pure documentation skill with no scripts. Well-structured CLI reference for a specialized Langium/AI workflow tool. References sub-skills (lai-gen-descriptor, lai-gen-sysprompt, lai-gen-mcp, lai-gen-evals) which are separate skills.

Information

Repository: langium-ai
Stars: 24

Trust Score

Overall88

Security98

Code Quality78

Architecture76

Usefulness45

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LAI: Generate or Refine System Prompt

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