Updated 3d ago
by eclipse-langium
langium-ai
AI toolbox for grounding LLMs on Langium DSLs with evaluation, constraints, and agent skills
31 GitHub stars (31)
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- 7 skills (7 skills found in its SKILL.md files)
- 4 forks (4 forks)
- 3d ago last update (Last updated 3d ago)
Install
Skills CLI
npx skills add eclipse-langium/langium-ai
Asks which skills and agents to install. Just one: npx skills add eclipse-langium/langium-ai --skill lai-gen-descriptor — add -g for every project.
Claude Code
git clone https://github.com/eclipse-langium/langium-aicp -r "langium-ai/skills/lai-gen-descriptor" ~/.claude/skills/
Copies the lai-gen-descriptor skill into ~/.claude/skills/ for every project (use .claude/skills/ for one project). Repeat for the other skills listed below.
Plugin
/plugin marketplace add eclipse-langium/langium-ai
Run inside Claude Code if the repository ships a plugin marketplace, then pick plugins from /plugin.
Skills can run code on your machine — read the SKILL.md first.
What it does
In the author's own words, from each skill's SKILL.md.
-
lai-gen-descriptor
Generate or refine a language descriptor for a Langium DSL project. Bootstraps a new descriptor via `lai gen descriptor` if none exists, then guides refinement of paths, services, examples, documentation, and structure.
skills/lai-gen-descriptor/ on GitHub (opens in a new tab)SKILL.md -
lai-gen-evals
Expand and refine the evaluation suite for a Langium DSL project. Generates comprehensive eval files that cover syntactic correctness, semantic validity, user intent matching, edge cases, and language understanding.
skills/lai-gen-evals/ on GitHub (opens in a new tab)SKILL.md -
lai-gen-language-skill
Skill for generating a skill for understanding a specific Langium-based DSL. Used in cooperation with the lai & langium skills for understanding.
skills/lai-gen-language-skill/ on GitHub (opens in a new tab)SKILL.md -
lai-gen-mcp
Generate a Model Context Protocol (MCP) server that exposes a Langium DSL's parser and validator as an MCP tool, allowing any MCP-compatible client to validate DSL code and receive diagnostics.
skills/lai-gen-mcp/ on GitHub (opens in a new tab)SKILL.md -
lai-gen-sysprompt
Generate or refine a system prompt for a Langium DSL project. Bootstraps a new system prompt via `lai gen sysprompt` if none exists, then guides targeted refinement based on evaluation results and language changes.
skills/lai-gen-sysprompt/ on GitHub (opens in a new tab)SKILL.md -
lai
Guide for using the langium-ai (LAI) CLI to generate language descriptors, synthesize system prompts, run evaluations, and iteratively refine AI-powered tooling in Langium projects. Use when working with lai commands, descriptors, or evaluation files.
skills/lai/ on GitHub (opens in a new tab)SKILL.md -
langium
A comprehensive skill to understanding how Langium-based projects work — from grammar definition through code generation, runtime parsing, linking, validation, and LSP integration
skills/langium/ on GitHub (opens in a new tab)SKILL.md
No skill matches that filter.
Review before you install
A skill is a set of instructions and scripts your agent will follow, and it can run code on your machine. Read the SKILL.md and any scripts first — this listing is not a security review.