missingPipeableSignature

August 4, 2026 ยท View on GitHub

Reports exported fixed-arity functions whose call signatures have no corresponding pipeable overload

PropertyValue
CategoryStyle
Default severityoff
FixableNo
Effect versionsv3, v4
Diagnostic codesTS377101
Language Service namemissingPipeableSignature
Oxlint nameeffecttsgo/missing-pipeable-signature

Preview

export const getAt = (self: ReadonlyArray<string>, index: number): string => self[index]
/**
             ^^^^^ effecttsgo(missing-pipeable-signature): Exported function `getAt` has no pipeable overload corresponding to its signature `(self: ReadonlyArray<string>, index: number) => string`.
*/

Language Service Configuration

See the Language Service setup guide for installation instructions.

{
  "$schema": "./node_modules/@effect/tsgo/schema.json",
  "compilerOptions": {
    "plugins": [
      {
        "name": "@effect/language-service",
        "diagnosticSeverity": {
          "missingPipeableSignature": "warning"
        }
      }
    ]
  }
}

Oxlint Configuration

See the Oxlint setup guide for installation and patching instructions.

{
  "$schema": "./node_modules/@effect/tsgo/oxlint-schema.json",
  "options": {
    "typeAware": true
  },
  "plugins": ["effecttsgo"],
  "rules": {
    "effecttsgo/missing-pipeable-signature": "warn"
  }
}