deepseek-ai/deepseek-harness · error · Error

${name} is not available in the dynamic package sandbox — ${

Error message

${name} is not available in the dynamic package sandbox — ${redirect}

What it means

Error "${name} is not available in the dynamic package sandbox — ${redirect}" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/extensions/cordis-host-runner/src/sandbox.ts:115

  require:
    'Node modules are unavailable. Use the cordis services on ctx instead — e.g. inject: [\'fs\'] for files, '
    + '[\'web\'] for HTTP, [\'bash\'] for processes; query Service.listService with cordis_inspect_query first.',
  setTimeout: TIMER_REDIRECT,
  setInterval: TIMER_REDIRECT,
  setImmediate: TIMER_REDIRECT,
  clearTimeout: TIMER_REDIRECT,
  clearInterval: TIMER_REDIRECT,
  fetch:
    'Network access goes through the cordis web service: declare inject: [\'web\'] and call ctx.web '
    + '(query Host Service.listService with cordis_inspect_query for its methods).',
}

/** Build the trap functions for {@link NODE_API_REDIRECTS}: calling one throws the redirect. */
function nodeApiTraps(): Record<string, () => never> {
  const traps: Record<string, () => never> = {}
  for (const [name, redirect] of Object.entries(NODE_API_REDIRECTS)) {
    traps[name] = () => {
      throw new Error(`${name} is not available in the dynamic package sandbox — ${redirect}`)
    }
  }
  return traps
}

/**
 * Build the vm context one host half evaluates in: the tagged console, the
 * `harness` registration helpers, the encoding primitives, the Node-API traps,
 * and the dual-realm `instanceof` patch, already `createContext`-ed.
 * @param id - the package id (`dyn-<n>`), used as the console tag and filename stem.
 * @param harnessExtras - per-package `harness` verbs beyond the registration pair (`handle`).
 * @returns the contextified sandbox object to pass to {@link evaluateHostCode}.
 */
export function createSandbox(id: string, harnessExtras: Record<string, unknown> = {}): object {
  const sandbox = {
    ...nodeApiTraps(),
    console: taggedConsole(id),
    harness: { defineTool: sandboxDefineTool, registerTool: sandboxRegisterTool, ...harnessExtras },

View on GitHub (pinned to b150a551b8)

When it happens

Trigger: Thrown at packages/extensions/cordis-host-runner/src/sandbox.ts:115 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/50aad4898f934f70. Report an issue: GitHub.