diff --git a/backend/internal/domain/discovery/model.go b/backend/internal/domain/discovery/model.go
new file mode 100644
index 0000000..df4809a
--- /dev/null
+++ b/backend/internal/domain/discovery/model.go
@@ -0,0 +1,86 @@
+// backend/internal/domain/discovery/model.go
+package discovery
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+// Bucket is a scheduler row: one (land, region, year_month) tuple.
+type Bucket struct {
+	ID            uuid.UUID
+	Land          string
+	Region        string
+	YearMonth     string // 'YYYY-MM'
+	LastQueriedAt *time.Time
+	LastError     string
+	CreatedAt     time.Time
+}
+
+// DiscoveredMarket is a queue entry awaiting admin review.
+type DiscoveredMarket struct {
+	ID               uuid.UUID
+	BucketID         uuid.UUID
+	MarktName        string
+	Stadt            string
+	Bundesland       string
+	Land             string
+	StartDatum       *time.Time
+	EndDatum         *time.Time
+	Website          string
+	Quellen          []string
+	Extraktion       string
+	Hinweis          string
+	NameNormalized   string
+	MatchedSeriesID  *uuid.UUID
+	Status           string // 'pending' | 'accepted' | 'rejected'
+	DiscoveredAt     time.Time
+	ReviewedAt       *time.Time
+	ReviewedBy       *uuid.UUID
+	CreatedEditionID *uuid.UUID
+}
+
+// RejectedDiscovery stores a sticky rejection scoped to (normalized_name, city, year).
+type RejectedDiscovery struct {
+	ID             uuid.UUID
+	NameNormalized string
+	Stadt          string
+	Year           int
+	RejectedAt     time.Time
+	RejectedBy     *uuid.UUID
+	Reason         string
+}
+
+// Pass0Response is the parsed shape of the Mistral Pass 0 agent reply.
+type Pass0Response struct {
+	Bucket         Pass0Bucket   `json:"bucket"`
+	RechercheDatum string        `json:"recherche_datum"`
+	QuellenGesamt  []string      `json:"quellen_gesamt"`
+	Maerkte        []Pass0Market `json:"maerkte"`
+}
+
+type Pass0Bucket struct {
+	Land      string `json:"land"`
+	Region    string `json:"region"`
+	JahrMonat string `json:"jahr_monat"`
+}
+
+type Pass0Market struct {
+	MarktName  string   `json:"markt_name"`
+	Stadt      string   `json:"stadt"`
+	Bundesland string   `json:"bundesland"`
+	StartDatum string   `json:"start_datum"` // 'YYYY-MM-DD' or ""
+	EndDatum   string   `json:"end_datum"`
+	Website    string   `json:"website"`
+	Quellen    []string `json:"quellen"`
+	Extraktion string   `json:"extraktion"`
+	Hinweis    string   `json:"hinweis"`
+}
+
+// Status constants for discovered_markets.
+const (
+	StatusPending  = "pending"
+	StatusAccepted = "accepted"
+	StatusRejected = "rejected"
+)