@epistemicdb/lsp

Language Server Protocol implementation for EQL (Epistemic Query Language) — provides diagnostics, completions, hover info, and formatting for EpistemicDB.

Features

• Diagnostics — Real-time syntax and type errors as you type
• Completions — Keywords, field names, epistemic classes, projections
• Hover — Documentation for EQL keywords and built-in functions
• Formatting — Auto-format EQL queries on save

Install

npm install @epistemicdb/lsp

Usage with VS Code

Install the EpistemicDB EQL extension — it bundles this LSP automatically.

Usage with other editors

Point your editor's LSP client at the server binary:

npx @epistemicdb/lsp --stdio

Neovim (nvim-lspconfig)

require('lspconfig.configs').eql = {
  default_config = {
    cmd = { 'npx', '@epistemicdb/lsp', '--stdio' },
    filetypes = { 'eql' },
    root_dir = function(fname)
      return require('lspconfig.util').find_git_ancestor(fname)
    end,
  },
}
require('lspconfig').eql.setup({})

Documentation

Full docs at epistemicdb.com/docs