deepseek-ai/deepseek-harness · error

the current model route could not be resolved

Error message

the current model route could not be resolved

What it means

Error "the current model route could not be resolved" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/mcp/mcp-client/src/tools.ts:407

  }
  return { data, mediaType: block.mimeType }
}

/**
 * Resolve the active model route and durable store for an image-bearing result.
 * @param ctx - plugin context with optional services.
 * @param exec - exact tool execution whose agent supplies the latest route.
 * @returns the attachment store after exact positive image-capability proof.
 */
async function resolveImageAdmission(ctx: Context, exec: ToolExecution): Promise<AttachmentStore> {
  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]`

View on GitHub (pinned to b150a551b8)

Solutions

1. Configure a resolvable current model route before attaching images.

When it happens

Trigger: Thrown at packages/mcp/mcp-client/src/tools.ts:407 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/f321a106e0cee46c. Report an issue: GitHub.