Tell a bundle the kinds its membership names

node-tools/internal/bus/seat.go

@@ -31,6 +31,27 @@ type SeatTraffic struct {
 	Answers   []string     `json:"answers,omitempty"`
 	Workers   []SeatWorker `json:"workers,omitempty"`
 	Records   []string     `json:"records,omitempty"`
+	// Kinds are the holders of every kinded bench the module uses or watches, with what each promises: the
+	// controller's record of their claims (novox/hq ADR 0259 §5).
+	Kinds []KindHeld `json:"kinds,omitempty"`
+}
+
+// KindHeld is one kind of a kinded bench and who holds it.
+type KindHeld struct {
+	Seat         string   `json:"seat"`
+	Kind         string   `json:"kind"`
+	Module       string   `json:"module"`
+	Node         string   `json:"node"`
+	Capabilities []string `json:"capabilities,omitempty"`
+}
+
+// SeatKinds is the kinds the module's membership names, as the controller issued them.
+func (c *Conn) SeatKinds(module string) ([]KindHeld, error) {
+	t, err := c.trafficOf(module)
+	if err != nil {
+		return nil, err
+	}
+	return append([]KindHeld{}, t.Kinds...), nil
 }
 
 // SeatWorker is one work queue a holder takes from.