deepseek-ai/deepseek-harness · error

the tool call was canceled before image storage

Error message

the tool call was canceled before image storage

What it means

Error "the tool call was canceled before image storage" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/mcp/mcp-client/src/tools.ts:418

  const attachments = ctx.get('attachments')
  if (attachments === undefined) throw new Error('no attachment store is mounted')
  const routed = exec.agent?.session.requestHeader()?.config
  const provider = routed?.provider ?? exec.agent?.options.provider
  const model = routed?.model ?? exec.agent?.options.model
  const llm = ctx.get('llm')
  if (provider === undefined || model === undefined || llm === undefined) {
    throw new Error('the current model route could not be resolved')
  }
  let info: Awaited<ReturnType<typeof llm.resolveModelInfo>>
  try {
    info = await llm.resolveModelInfo(provider, model, exec.signal)
  } catch {
    throw new Error('the current model route could not be verified')
  }
  if (info.inputModalities === undefined || !info.inputModalities.includes('image')) {
    throw new Error(`model "${model}" does not declare image input`)
  }
  if (exec.signal.aborted) throw new Error('the tool call was canceled before image storage')
  return attachments
}

/** Stable diagnostic text for an image block that was not admitted. */
function imageDiagnostic(block: McpContentBlock, reason: string): string {
  const mediaType = block.mimeType ?? 'unknown media type'
  return `[image unavailable: ${mediaType}; ${reason}; raw image data remains available to programmatic callers]`
}

/**
 * Decode, preflight, and durably save one MCP result's ordered image batch.
 * Any refusal projects every image as text while retaining the canonical raw
 * value for programmatic callers.
 */
async function prepareImageProjection(
  ctx: Context,
  exec: ToolExecution,
  content: JsonValue[],

View on GitHub (pinned to b150a551b8)

Solutions

1. Retry the tool call without canceling it.

When it happens

Trigger: Thrown at packages/mcp/mcp-client/src/tools.ts:418 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/ab6b9e8dc24bafd5. Report an issue: GitHub.