Method markServerUnhealthy

apps/sim/lib/mcp/service.ts:387–404

* Negative-cache a discovery failure. OAuth-required errors are exempt so * reconnects retry immediately.

(
    workspaceId: string,
    serverId: string,
    error: unknown
  )

   * reconnects retry immediately.
   */
  private async markServerUnhealthy(
    workspaceId: string,
    serverId: string,
    error: unknown
  ): Promise<void> {
    if (error instanceof McpOauthAuthorizationRequiredError || error instanceof UnauthorizedError) {
      return
    }
    try {
      await this.cacheAdapter.set(
        failureCacheKey(workspaceId, serverId),
        FAILURE_CACHE_SENTINEL,
        MCP_CLIENT_CONSTANTS.FAILURE_CACHE_TTL_MS
      )
    } catch (err) {
      logger.warn(`Failed to write failure cache for server ${serverId}:`, err)
    }
  }

  private async isServerUnhealthy(workspaceId: string, serverId: string): Promise<boolean> {
    try {