reqlan
semantic **engineering** toolset. Language | Extension | CLI | MCP | LLM-first context management tools.
Documentation
reqlan
Semantic requirements as code.
reqlan is a structured language for composing a graph of natural language ideas in software projects — with a VS Code extension, language server, and tooling for traceability and AI-assisted requirement work.
Links
Repository
This monorepo contains the reqlan language, VS Code extension, static site, and supporting tools.
- `packages/language` — Langium grammar and language services
- `packages/extension` — VS Code extension
- `site` — marketing and documentation site
- `packages/cli` — command-line interface
- `packages/mcp` — MCP server for requirement graph tools
See README.dev.md for workspace setup and development notes.
Frequently asked questions
What is reqlan?
reqlan is semantic **engineering** toolset. Language | Extension | CLI | MCP | LLM-first context management tools.
How do I install reqlan?
Open the GitHub repository and follow its README. Most MCP servers are added to your client's MCP config, then called by your agent.
Is reqlan open source?
Yes — it is hosted on GitHub at https://github.com/littletuna4/reqlan and has 3 stars.
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