deepseek-ai/deepseek-harness · error · AttachmentError

INVALID_ATTACHMENT_REF

INVALID_ATTACHMENT_REF

Error message

${name} must be a positive integer.

What it means

Error "${name} must be a positive integer." thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/attachment/attachment-local/src/request-image.ts:73

    let projectedHeight = Math.max(1, Math.round(projectedWidth * height / width))
    while (projectedWidth * projectedHeight > maxPixels && projectedWidth > 1) {
      projectedWidth -= 1
      projectedHeight = Math.max(1, Math.round(projectedWidth * height / width))
    }
    return { width: projectedWidth, height: projectedHeight }
  }
  let projectedHeight = Math.max(1, Math.floor(height * scale))
  let projectedWidth = Math.max(1, Math.round(projectedHeight * width / height))
  while (projectedWidth * projectedHeight > maxPixels && projectedHeight > 1) {
    projectedHeight -= 1
    projectedWidth = Math.max(1, Math.round(projectedHeight * width / height))
  }
  return { width: projectedWidth, height: projectedHeight }
}

function checkedInteger(value: number, name: string): number {
  if (!Number.isSafeInteger(value) || value <= 0) {
    throw new AttachmentError(`${name} must be a positive integer.`, 'INVALID_ATTACHMENT_REF')
  }
  return value
}

function validatePolicy(policy: ImageRequestPolicy): void {
  checkedInteger(policy.maxPixels, 'Image request maxPixels')
  checkedInteger(policy.maxBytes, 'Image request maxBytes')
}

function descriptor(attachment: ImageAttachmentRef, policy: ImageRequestPolicy): string {
  return JSON.stringify({
    transformVersion: REQUEST_IMAGE_TRANSFORM_VERSION,
    attachmentId: attachment.attachmentId,
    routePixelBudget: policy.maxPixels,
    encodedByteBudget: policy.maxBytes,
    encoding: {
      png: { compressionLevel: 9, palette: 'opaque-only' },
      webpQualities: REQUEST_IMAGE_QUALITIES,

View on GitHub (pinned to b150a551b8)

Solutions

1. Provide a positive integer value for the named parameter.

When it happens

Trigger: Thrown at packages/attachment/attachment-local/src/request-image.ts:73 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/cf958cbaa5330e27. Report an issue: GitHub.