coc-settings.json

{
    "diagnostic.enableHighlightLineNumber": false,
    "diagnostic.errorSign": "? ",
    "diagnostic.hintSign": "* ",
    "diagnostic.warningSign": "* ",
    "diagnostic.infoSign": "* ",
    "diagnostic.displayByAle": true,

    "clangd.disableDiagnostics": true,
    "python.linting.enabled": false,
    "python.linting.pylintEnabled": true,
    "typescript.suggest.enabled": false,
    "tsserver.enable": true,
    "javascript.suggest.enabled": true,
    "rust-analyzer.inlayHints.enable": false,
    "rust-analyzer.cargo.allFeatures": true,
    "rust-analyzer.callInfo.full": true,
    "rust-analyzer.hover.documentation": true,
    "rust-analyzer.lens.enable": false,
    "codeLens.enable": false,
    "languageserver": {
        "haskell": {
            "command": "haskell-language-server-wrapper",
            "args": [
                "--lsp"
            ],
            "rootPatterns": [
                ".stack.yaml",
                ".hie-bios",
                "BUILD.bazel",
                "cabal.config",
                "package.yaml"
            ],
            "filetypes": [
                "hs",
                "lhs",
                "haskell"
            ],
            "initializationOptions": {
                "languageServerHaskell": {
                    "hlintOn": false,
                    "maxNumberOfProblems": 10,
                    "completionSnippetsOn": true
                }
            }
        }
    }
}