diff --git a/healer/healer.proto b/healer/healer.proto
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+++ b/healer/healer.proto
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+// Code generated by make; DO NOT EDIT.
+syntax = "proto3";
+package healer;
+
+import "github.com/container-storage-interface/spec/lib/go/csi/csi.proto";
+import "google/protobuf/descriptor.proto";
+
+option go_package = "github.com/csi-addons/spec/lib/go/healer";
+
+// HealerNode holds the RPC method for running heal operations on the
+// active (staged/published) volume.
+service HealerNode {
+  // NodeHealer is a procedure that gets called on the CSI NodePlugin.
+  rpc NodeHealer (NodeHealerRequest)
+  returns (NodeHealerResponse) {}
+}
+// NodeHealerRequest contains the information needed to identify the
+// location where the volume is mounted so that local filesystem or
+// block-device operations to heal volume can be executed.
+message NodeHealerRequest {
+  // The ID of the volume. This field is REQUIRED.
+  string volume_id = 1;
+
+  // The path on which volume is available. This field is REQUIRED.
+  // This field overrides the general CSI size limit.
+  // SP SHOULD support the maximum path length allowed by the operating
+  // system/filesystem, but, at a minimum, SP MUST accept a max path
+  // length of at least 128 bytes.
+  string volume_path = 2;
+
+  // The path where the volume is staged, if the plugin has the
+  // STAGE_UNSTAGE_VOLUME capability, otherwise empty.
+  // If not empty, it MUST be an absolute path in the root
+  // filesystem of the process serving this request.
+  // This field is OPTIONAL.
+  // This field overrides the general CSI size limit.
+  // SP SHOULD support the maximum path length allowed by the operating
+  // system/filesystem, but, at a minimum, SP MUST accept a max path
+  // length of at least 128 bytes.
+  string staging_target_path = 3;
+
+  // Volume capability describing how the CO intends to use this volume.
+  // This allows SP to determine if volume is being used as a block
+  // device or mounted file system. For example - if volume is being
+  // used as a block device the SP MAY choose to skip calling filesystem
+  // operations to healer. If volume_capability is omitted the SP MAY
+  // determine access_type from given volume_path for the volume and
+  // perform healing. This is an OPTIONAL field.
+  csi.v1.VolumeCapability volume_capability = 4;
+
+  // Secrets required by plugin to complete the healer operation.
+  // This field is OPTIONAL.
+  map<string, string> secrets = 5 [(csi.v1.csi_secret) = true];
+}
+
+// NodeHealerResponse holds the information about the result of the
+// NodeHealerRequest call.
+message NodeHealerResponse {
+  // Normal volumes are available for use and operating optimally.
+  // An abnormal volume does not meet these criteria.
+  // This field is REQUIRED.
+  bool abnormal = 1;
+
+  // The message describing the condition of the volume.
+  // This field is REQUIRED.
+  string message = 2;
+}