diff --git a/src/vnet/devices/af_packet/FEATURE.yaml b/src/vnet/devices/af_packet/FEATURE.yaml
index 0063014..4a057c4 100644
--- a/src/vnet/devices/af_packet/FEATURE.yaml
+++ b/src/vnet/devices/af_packet/FEATURE.yaml
@@ -1,9 +1,15 @@
+---
 name: host-interface Device (AF_PACKET)
 maintainer: Damjan Marion <damarion@cisco.com>
 features:
   - L4 checksum offload
-description: "Create a host interface that will attach to a linux AF_PACKET interface, one side of a veth pair. The veth pair must already exist. Once created, a new host interface will exist in VPP with the name 'host-<ifname>', where '<ifname>' is the name of the specified veth pair. Use the 'show interface' command to display host interface details."
+description: "Create a host interface that will attach to a linux AF_PACKET
+              interface, one side of a veth pair. The veth pair must
+              already exist. Once created, a new host interface will
+              exist in VPP with the name 'host-<ifname>', where '<ifname>'
+              is the name of the specified veth pair. Use the 'show interface'
+              command to display host interface details."
 missing:
- - API dump details beyond sw_if_index and name
+  - API dump details beyond sw_if_index and name
 state: production
 properties: [API, CLI, STATS, MULTITHREAD]
diff --git a/src/vnet/devices/netmap/FEATURE.yaml b/src/vnet/devices/netmap/FEATURE.yaml
index dfc32bb..e23e5c2 100644
--- a/src/vnet/devices/netmap/FEATURE.yaml
+++ b/src/vnet/devices/netmap/FEATURE.yaml
@@ -1,9 +1,12 @@
+---
 name: Netmap Device
 maintainer: Damjan Marion <damarion@cisco.com>
 features:
   - L4 checksum offload
-description: "Create a netmap interface, which is a high speed user-space interface that allows VPP to patch into a linux namespace, a linux container, or a physical NIC without the use of DPDK."
+description: "Create a netmap interface, which is a high speed user-space
+              interface that allows VPP to patch into a linux namespace,
+              a linux container, or a physical NIC without the use of DPDK."
 missing:
- - API dump
+  - API dump
 state: production
 properties: [API, CLI, STATS, MULTITHREAD]
diff --git a/src/vnet/devices/pipe/FEATURE.yaml b/src/vnet/devices/pipe/FEATURE.yaml
index 0886ec5..dbe3b3b 100644
--- a/src/vnet/devices/pipe/FEATURE.yaml
+++ b/src/vnet/devices/pipe/FEATURE.yaml
@@ -1,8 +1,12 @@
+---
 name: Pipe Device
 maintainer: Damjan Marion <damarion@cisco.com>
 features:
   - L4 checksum offload
-description: "Create a pipe device interface, which can pass packets bidirectionally in one side of the pipe to the other side of the pipe. While similar in behavior to a unix pipe, it is not a host-based pipe."
+description: "Create a pipe device interface, which can pass packets
+              bidirectionally in one side of the pipe to the other side of
+              the pipe. While similar in behavior to a unix pipe, it is
+              not a host-based pipe."
 missing:
   - does not use hw-address
   - does not support tagged traffic
diff --git a/src/vnet/devices/tap/FEATURE.yaml b/src/vnet/devices/tap/FEATURE.yaml
index 2ca6057..ce2c510 100644
--- a/src/vnet/devices/tap/FEATURE.yaml
+++ b/src/vnet/devices/tap/FEATURE.yaml
@@ -1,8 +1,10 @@
+---
 name: Tap Device
 maintainer: damarion@cisco.com sluong@cisco.com sykazmi@cisco.com
 features:
   - Virtio
-description: "Create a tap v2 device interface, which connects to a tap interface on the host system."
+description: "Create a tap v2 device interface, which connects to a
+              tap interface on the host system."
 missing:
 
   - API dump filtering by sw_if_index
diff --git a/src/vnet/devices/virtio/FEATURE.yaml b/src/vnet/devices/virtio/FEATURE.yaml
index 69f4739..c98689e 100644
--- a/src/vnet/devices/virtio/FEATURE.yaml
+++ b/src/vnet/devices/virtio/FEATURE.yaml
@@ -1,7 +1,9 @@
+---
 name: Virtio PCI Device
 maintainer: Mohsin Kazmi <sykazmi@cisco.com>
 features:
-  - connection to the emulated pci interface presented to vpp from the host interface.
+  - connection to the emulated pci interface presented to vpp from
+    the host interface.
 description: "Create a virtio-backed PCI device interface"
 missing:
   - API dump filtering by sw_if_index