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@manifesto-ai/mel-lsp ​

Language Server Protocol implementation for MEL.

Overview ​

@manifesto-ai/mel-lsp is the editor and authoring-time tooling surface for MEL.

It provides:

  • real-time diagnostics through @manifesto-ai/compiler
  • completion for builtins, keywords, domain symbols, and system identifiers
  • hover, signature help, document symbols, go-to-definition, references, and rename
  • semantic tokens and code actions
  • AI-facing schema introspection methods for agent workflows

Install ​

bash
npm install -D @manifesto-ai/mel-lsp

Run the server over stdio:

bash
npx mel-lsp

Any editor that supports LSP can launch mel-lsp for *.mel files.

Feature Surface ​

Authoring Support ​

  • diagnostics
  • completion
  • hover
  • signature help
  • document symbols
  • go-to-definition
  • references
  • rename
  • semantic tokens
  • code actions

AI-Native Methods ​

mel-lsp also exposes two custom methods:

  • mel/schemaIntrospection: full compiled DomainSchema
  • mel/actionSignatures: lightweight action metadata for agent integration

That makes it useful not only for editors but also for tool-hosted MEL-aware assistants.

Typical Usage ​

In an Editor ​

Configure the editor to launch mel-lsp over stdio for .mel files.

In a Tooling Workspace ​

Use mel-lsp when you want diagnostics and symbol navigation while authoring domains, then pair it with @manifesto-ai/studio-cli or @manifesto-ai/studio-mcp for runtime overlay inspection.

Relationship To Other Packages ​