deepseek-ai/deepseek-harness · error

${path}.initialDelayMs must be a positive finite number no g

Error message

${path}.initialDelayMs must be a positive finite number no greater than ${MAX_TIMER_DELAY_MS}

What it means

Error "${path}.initialDelayMs must be a positive finite number no greater than ${MAX_TIMER_DELAY_MS}" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/mcp/mcp-client/src/connection.ts:77

 * fails the plugin instance at load.
 *
 * @param config - Raw `reconnect` config; omission uses the defaults.
 * @param path - Diagnostic prefix naming the config location in thrown messages.
 * @returns The frozen resolved policy.
 */
export function resolveReconnectPolicy(config: ReconnectConfig | undefined, path: string): ResolvedReconnectPolicy {
  if (config !== undefined) {
    for (const key of Object.keys(config)) {
      if (!Object.hasOwn(RECONNECT_DEFAULTS, key)) throw new Error(`${path}.${key} is not a reconnect option`)
    }
  }
  const enabled = config?.enabled ?? RECONNECT_DEFAULTS.enabled
  const initialDelayMs = config?.initialDelayMs ?? RECONNECT_DEFAULTS.initialDelayMs
  const maxDelayMs = config?.maxDelayMs ?? RECONNECT_DEFAULTS.maxDelayMs
  const maxAttempts = config?.maxAttempts ?? RECONNECT_DEFAULTS.maxAttempts
  /* jscpd:ignore-start — domain-specific delay validation parallels llm retry-policy; not extractable */
  if (!Number.isFinite(initialDelayMs) || initialDelayMs <= 0 || initialDelayMs > MAX_TIMER_DELAY_MS) {
    throw new Error(`${path}.initialDelayMs must be a positive finite number no greater than ${MAX_TIMER_DELAY_MS}`)
  }
  if (!Number.isFinite(maxDelayMs) || maxDelayMs <= 0 || maxDelayMs > MAX_TIMER_DELAY_MS) {
    throw new Error(`${path}.maxDelayMs must be a positive finite number no greater than ${MAX_TIMER_DELAY_MS}`)
  }
  if (initialDelayMs > maxDelayMs) {
    throw new Error(`${path}.initialDelayMs must be less than or equal to maxDelayMs`)
  }
  if (!Number.isInteger(maxAttempts) || maxAttempts < 1) {
    throw new Error(`${path}.maxAttempts must be a positive integer`)
  }
  /* jscpd:ignore-end */
  return Object.freeze({ enabled, initialDelayMs, maxDelayMs, maxAttempts })
}

/** Result from the initial connection attempt, for startup-await semantics. */
export interface ConnectionOutcome {
  /** If the initial connection or tool sync failed, the error; otherwise absent. */
  error?: unknown

View on GitHub (pinned to b150a551b8)

Solutions

1. Set initialDelayMs to a positive finite number no greater than the stated timer cap.

When it happens

Trigger: Thrown at packages/mcp/mcp-client/src/connection.ts:77 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/86c111a5903601a0. Report an issue: GitHub.