deepseek-ai/deepseek-harness · error · LlmError

DeepSeek API error (HTTP ${response.status})

Error message

DeepSeek API error (HTTP ${response.status})

What it means

Error "DeepSeek API error (HTTP ${response.status})" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/llm/llm-deepseek/src/adapter.ts:651

        const detail = [providerError?.code, providerError?.type, providerError?.message]
          .filter((field): field is string => typeof field === 'string')
          .join(' ')
        const staleFile = usedFiles.length > 0 && providerRejectedFileId(detail)
        if (staleFile) {
          await Promise.all(staleMappings(usedFiles, detail).map(file => (
            this.files.invalidate(file.version, file.fileId, fileConnection)
          )))
          if (fileAttempt === 0) {
            fileAttempt += 1
            continue
          }
        }
        if (response.status === 400 && usedFiles.length > 0 && providerRejectedNormalizedImage(detail)) {
          message = normalizedImageDiagnostic(usedFiles, message, detail)
        }
        const delay = providerRetryAfterMs(response.headers.get('retry-after'))
        const id = requestId(response.headers)
        throw new LlmError(message, httpErrorCode(response.status, providerError), {
          cause: new Error(rawResponse.length > 0 ? rawResponse : `DeepSeek HTTP ${response.status}`),
          status: response.status,
          ...delay === undefined ? {} : { providerRetryAfterMs: delay },
          ...id === undefined ? {} : { requestId: id },
        })
      }
      if (!response.body) {
        throw new LlmError('DeepSeek API returned no response body', 'EMPTY_RESPONSE')
      }

      yield* translate(parseSse(response.body, onActivity))
      return
    }
  }
}

View on GitHub (pinned to b150a551b8)

Solutions

1. Act on the HTTP status: fix the API key for 401, back off for 429, and inspect the response body for other statuses.

When it happens

Trigger: Thrown at packages/llm/llm-deepseek/src/adapter.ts:651 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/bd1050ec9d1fe2a6. Report an issue: GitHub.