deepseek-ai/deepseek-harness · error · WebError

WEB_PROVIDER_UNAVAILABLE

WEB_PROVIDER_UNAVAILABLE

Error message

no usable web provider is registered

What it means

Error "no usable web provider is registered" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/web/web/src/index.ts:187

}

/** Resolve the selected provider or throw the matching {@link WebError}. */
function resolveProvider<P extends ResolvableProvider>(selection: Selection<P>): P {
  const { configuredId, providers } = selection
  if (configuredId !== undefined) {
    const provider = providers.get(configuredId)
    if (!provider) {
      throw new WebError(`configured web provider "${configuredId}" is not registered`, 'WEB_PROVIDER_CONFIGURED_MISSING')
    }
    if (!provider.available()) {
      throw new WebError(`configured web provider "${configuredId}" is registered but unavailable`, 'WEB_PROVIDER_CONFIGURED_UNAVAILABLE')
    }
    return provider
  }
  const usable = [...providers.values()].filter(provider => provider.available())
  const [single] = usable
  if (single === undefined) {
    throw new WebError('no usable web provider is registered', 'WEB_PROVIDER_UNAVAILABLE')
  }
  if (usable.length > 1) {
    const ids = usable.map(provider => provider.id).join(', ')
    throw new WebError(`multiple usable web providers are registered (${ids}); configure one explicitly`, 'WEB_PROVIDER_AMBIGUOUS')
  }
  return single
}

/** Enforce `maxResults` on a search result: truncate `sources[]` and flag it. */
function capSources(result: WebSearchResult, maxResults: number | undefined): WebSearchResult {
  if (maxResults === undefined || result.sources.length <= maxResults) return result
  return { ...result, sources: result.sources.slice(0, maxResults), truncated: true }
}

export default WebRuntime

View on GitHub (pinned to b150a551b8)

Solutions

1. Compose at least one web provider (search or fetch) into cordis.yml with valid configuration and credentials so the web capability has a usable provider.

When it happens

Trigger: Thrown at packages/web/web/src/index.ts:187 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/cb6b9c4b44d74c10. Report an issue: GitHub.