deepseek-ai/deepseek-harness · error · Error

client api: generated Remote ${endpointOf(descriptor)} scope

Error message

client api: generated Remote ${endpointOf(descriptor)} scope must select its only lookup parameter

What it means

Error "client api: generated Remote ${endpointOf(descriptor)} scope must select its only lookup parameter" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/api/gateway/src/client/index.ts:582

}

function scopedProjection(descriptor: InvocationDescriptor): ScopedProjection | undefined {
  if (descriptor.invocation.kind === 'context') {
    return {
      context: descriptor.invocation.context,
      wire: descriptor.invocation.wire,
      codec: descriptor.invocation.codec,
    }
  }
  if (descriptor.scope === undefined) return undefined
  const lookupParameters = descriptor.parameters
    .map((parameter, index) => ({ parameter, index }))
    .filter(candidate => candidate.parameter.source === 'lookup')
  const selected = lookupParameters.length === 1 ? lookupParameters[0] : undefined
  if (selected === undefined
    || selected.parameter.wire !== descriptor.scope.wire
    || selected.parameter.lookup !== descriptor.scope.context) {
    throw new Error(
      `client api: generated Remote ${endpointOf(descriptor)} scope must select its only lookup parameter`,
    )
  }
  return {
    context: descriptor.scope.context,
    wire: descriptor.scope.wire,
    codec: selected.parameter.codec,
    parameterIndex: selected.index,
  }
}

function requireStrictDescriptor(descriptor: InvocationDescriptor): void {
  const endpoint = endpointOf(descriptor)
  requireStrictCodec(descriptor.result, endpoint, 'result')
  for (const parameter of descriptor.parameters) {
    requireStrictCodec(parameter.codec, endpoint, parameter.wire)
  }
  if (descriptor.invocation.kind === 'context') {

View on GitHub (pinned to b150a551b8)

Solutions

1. Make the generated Remote scope select exactly its single lookup parameter.

When it happens

Trigger: Thrown at packages/api/gateway/src/client/index.ts:582 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/f95b08ce4d664b59. Report an issue: GitHub.