Finalize inbox artifacts and error protocol

internal/cli/inbox/reply.go

@@ -19,6 +19,7 @@ type replyOptions struct {
 	body        string
 	bodyFile    string
 	payloadJSON string
+	artifacts   artifactOptions
 }
 
 func newReplyCmd(root *rootOptions) *cobra.Command {
@@ -35,13 +36,17 @@ func newReplyCmd(root *rootOptions) *cobra.Command {
 				from = root.agent
 			}
 			if from == "" {
-				return fmt.Errorf("from agent is required")
+				return protocol.InvalidInput("from agent is required", nil)
 			}
 
 			body, err := resolveBodyValue(opts.body, opts.bodyFile)
 			if err != nil {
 				return err
 			}
+			artifacts, err := resolveArtifacts(opts.artifacts)
+			if err != nil {
+				return err
+			}
 
 			sqlDB, err := db.Open(ctx, root.dbPath)
 			if err != nil {
@@ -58,6 +63,7 @@ func newReplyCmd(root *rootOptions) *cobra.Command {
 				Summary:     opts.summary,
 				Body:        body,
 				PayloadJSON: opts.payloadJSON,
+				Artifacts:   artifacts,
 			})
 			if err != nil {
 				return err
@@ -89,6 +95,7 @@ func newReplyCmd(root *rootOptions) *cobra.Command {
 	cmd.Flags().StringVar(&opts.body, "body", "", "Reply body")
 	cmd.Flags().StringVar(&opts.bodyFile, "body-file", "", "Read reply body from file")
 	cmd.Flags().StringVar(&opts.payloadJSON, "payload-json", "", "Structured payload JSON string")
+	addArtifactFlags(cmd, &opts.artifacts)
 
 	_ = cmd.MarkFlagRequired("thread")
 	_ = cmd.MarkFlagRequired("to")