diff --git a/internal/plugin/host.js b/internal/plugin/host.js
index bfef6341..a5133272 100644
--- a/internal/plugin/host.js
+++ b/internal/plugin/host.js
@@ -487,6 +487,7 @@ async function providers() {
           released: m.release_date ?? "",
           cost: m.cost,
           variants: Object.keys(m.variants ?? {}),
+          free: m.free === true,
         })),
     })
   }
diff --git a/internal/plugin/providers.go b/internal/plugin/providers.go
index 7e1f4f93..1680dc4c 100644
--- a/internal/plugin/providers.go
+++ b/internal/plugin/providers.go
@@ -35,7 +35,10 @@ type Model struct {
 	Image     bool     `json:"image"`
 	Released  string   `json:"released"`
 	Variants  []string `json:"variants"`
-	Cost      *struct {
+	// Free is set by the plugin on a model the plan serves at no cost to
+	// its allowance (WorkBuddy's "credits": "x0.00")
+	Free bool `json:"free"`
+	Cost *struct {
 		Input  float64 `json:"input"`
 		Output float64 `json:"output"`
 	} `json:"cost"`
diff --git a/internal/plugin/testdata/fake/index.js b/internal/plugin/testdata/fake/index.js
index 68df2a54..d2f8a116 100644
--- a/internal/plugin/testdata/fake/index.js
+++ b/internal/plugin/testdata/fake/index.js
@@ -82,6 +82,8 @@ export const FakePlugin = async ({ client }) => ({
       if (auth?.type === "oauth" && auth.refresh?.startsWith("rot-")) {
         await client.auth.set({ path: { id: "fakeco" }, body: { ...auth, refresh: auth.refresh + "+" } })
       }
+      // fake-1 costs the plan nothing, as a WorkBuddy model of x0.00 credits
+      p.models["fake-1"].free = true
       if (auth?.key === "few") return { "fake-1": p.models["fake-1"] }
       return p.models
     },
diff --git a/internal/provider/cursor_test.go b/internal/provider/cursor_test.go
index 5fd6cb39..217f3375 100644
--- a/internal/provider/cursor_test.go
+++ b/internal/provider/cursor_test.go
@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/yetone/magpie/internal/catalog"
+	"github.com/yetone/magpie/internal/plugin"
 )
 
 func TestParseCursorModels(t *testing.T) {
@@ -197,3 +198,29 @@ func TestTokenExpiry(t *testing.T) {
 		}
 	}
 }
+
+// Cursor's plugin gives each model Cursor's 200K unless the name says 1M;
+// a model known to hold less keeps its own there, as the built-in's list.
+func TestCursorPluginContext(t *testing.T) {
+	pp := plugin.Provider{ID: "cursor", Models: []plugin.Model{
+		{ID: "gpt-4o", Name: "GPT-4o", Context: 200_000},
+		{ID: "kimi-k2-high", Name: "Kimi K2", Context: 200_000},
+		{ID: "claude-opus-5-5-high", Name: "Claude Opus 5.5", Context: 1_000_000},
+		{ID: "composer-2.5", Name: "Composer 2.5", Context: 200_000},
+	}}
+	got := map[string]int{}
+	for _, m := range pluginCatalog(pp) {
+		got[m.ID] = m.Context
+	}
+	want := map[string]int{"gpt-4o": 128_000, "kimi-k2-high": 131_072, "claude-opus-5-5-high": 1_000_000, "composer-2.5": 200_000}
+	for id, n := range want {
+		if got[id] != n {
+			t.Errorf("%s: %d, want %d", id, got[id], n)
+		}
+	}
+	// another plugin's models are its own
+	pp.ID = "fakeco"
+	if c := pluginCatalog(pp)[0].Context; c != 200_000 {
+		t.Fatalf("fakeco gpt-4o: %d", c)
+	}
+}
diff --git a/internal/provider/migrate_movers_c_test.go b/internal/provider/migrate_movers_c_test.go
index 69230ecd..bc71863b 100644
--- a/internal/provider/migrate_movers_c_test.go
+++ b/internal/provider/migrate_movers_c_test.go
@@ -182,11 +182,19 @@ func TestZCodeMover(t *testing.T) {
 	own := ms["own@example.com"]
 	var st map[string]any
 	if !own.Own || own.Auth["access"] != "own.secret" || json.Unmarshal([]byte(str(own.Auth["refresh"])), &st) != nil ||
-		st["site"] != "zai" || st["key"] != "own.secret" || st["device"] != zcodeDeviceMid() || st["base"] != ZCodeZaiBase {
+		st["site"] != "zai" || st["key"] != "own.secret" || st["device"] != zcodeDeviceMid() || st["base"] != ZCodeZaiBase || st["source"] != "zcode" {
 		t.Fatalf("ZCode's own: %+v %+v", own, st)
 	}
+	// marked as ZCode's, it comes back as ZCode's own, with nothing saved
+	var ownBack map[string]any
+	_ = json.Unmarshal([]byte(jsonText(own.Auth)), &ownBack)
+	before := len(readLogins())
+	if ls, user, err := movers["zcode"].back(readLogins(), "own@example.com", ownBack); err != nil || len(ls) != before || user != "own@example.com" {
+		t.Fatalf("ZCode's own back: %v %q %+v", err, user, ls)
+	}
 	tm := ms["team@x"]
-	if json.Unmarshal([]byte(str(tm.Auth["refresh"])), &st) != nil || st["site"] != "bigmodel" || st["org"] != "o1" ||
+	st = nil
+	if json.Unmarshal([]byte(str(tm.Auth["refresh"])), &st) != nil || st["source"] != nil || st["site"] != "bigmodel" || st["org"] != "o1" ||
 		st["project"] != "p1" || st["token"] != "biz" || st["plan"] != "Team" || tm.Auth["expires"] != int64(0) {
 		t.Fatalf("team@x: %+v %+v", tm.Auth, st)
 	}
diff --git a/internal/provider/migrate_zcode.go b/internal/provider/migrate_zcode.go
index 7b14212f..0adc4f9d 100644
--- a/internal/provider/migrate_zcode.go
+++ b/internal/provider/migrate_zcode.go
@@ -12,9 +12,11 @@ import (
 // the requests need as its refresh, as the plugin's own sign-in keeps
 // them. Nothing here rotates: a key lasts until it is deleted.
 //
-// ZCode's own sign-in is kept encrypted, where the plugin can't read it,
-// so it goes as a copy of what magpie reads now. A key or a team seat
-// lasts, and the copy with it; ZCode's session token alone (the Start
+// ZCode's own sign-in goes as a copy of what magpie reads now, marked as
+// ZCode's (source "zcode"): the plugin from 0.1.2 reads ZCode's own
+// credentials in its place for each request, as the built-in does, so it
+// follows ZCode's switches; an older one uses the copy. A key or a team
+// seat lasts, and the copy with it; ZCode's session token alone (the Start
 // Plan) is renewed by ZCode, and a copy would lapse behind it, so such an
 // account stops the move and the built-in carries on.
 func init() {
@@ -29,13 +31,13 @@ func init() {
 					return nil, errors.New("ZCode's own sign-in has no coding plan key, only ZCode's session, which the plugin can't follow")
 				}
 				// the own account's copy goes back to nothing: ZCode keeps it
-				out = append(out, Moving{User: l.User, First: l.Active, On: l.On, Lapsed: l.Lapsed != "", Own: l.Own, Auth: zcodeOut(l.User, l.Plan, k)})
+				out = append(out, Moving{User: l.User, First: l.Active, On: l.On, Lapsed: l.Lapsed != "", Own: l.Own, Auth: zcodeOut(l.User, l.Plan, k, l.Own)})
 			}
 			return out, nil
 		},
 		back: func(ls []savedLogin, user string, auth map[string]any) ([]savedLogin, string, error) {
 			var s struct {
-				Site, Device, Key, Base, JWT, Token, Org, Project, Plan string
+				Site, Device, Key, Base, JWT, Token, Org, Project, Plan, Source string
 			}
 			if json.Unmarshal([]byte(str(auth["refresh"])), &s) != nil {
 				// a key signed in to in the plugin
@@ -49,6 +51,10 @@ func init() {
 			} else if s.Key == "" && s.JWT == "" {
 				s.Key = str(auth["access"])
 			}
+			// ZCode's own goes back to nothing: ZCode keeps it
+			if _, _, ok := zcodeOwn(); ok && s.Source == "zcode" {
+				return ls, ownUser(ls, "zcode", firstNonEmpty(user, str(auth["accountId"]))), nil
+			}
 			k := zcodeKey{Key: s.Key, Base: s.Base, JWT: s.JWT, Token: s.Token, Org: s.Org, Project: s.Project}
 			if k.Base == "" {
 				k.Base = ZCodeZaiBase
@@ -76,13 +82,17 @@ func init() {
 	}
 }
 
-// zcodeOut is a ZCode account as the plugin's sign-in keeps one.
-func zcodeOut(user, plan string, k zcodeKey) map[string]any {
+// zcodeOut is a ZCode account as the plugin's sign-in keeps one;
+// ZCode's own is marked as ZCode's, for the plugin to follow.
+func zcodeOut(user, plan string, k zcodeKey, own bool) map[string]any {
 	site := "zai"
 	if strings.Contains(k.Base, "bigmodel.cn") {
 		site = "bigmodel"
 	}
 	state := map[string]any{"site": site, "device": zcodeDeviceMid(), "base": k.Base}
+	if own {
+		state["source"] = "zcode"
+	}
 	for name, v := range map[string]string{"key": k.Key, "jwt": k.JWT, "token": k.Token, "org": k.Org, "project": k.Project, "plan": plan} {
 		if v != "" {
 			state[name] = v
diff --git a/internal/provider/plugin_usage_test.go b/internal/provider/plugin_usage_test.go
index 22a58fa9..59e3feac 100644
--- a/internal/provider/plugin_usage_test.go
+++ b/internal/provider/plugin_usage_test.go
@@ -84,6 +84,20 @@ func TestPluginUsage(t *testing.T) {
 		t.Fatalf("%d usage cards for the plugin's accounts, want 3", cards)
 	}
 
+	// a model the plugin says the plan serves at no cost shows as free,
+	// as WorkBuddy's built-in marked its x0.00 models
+	free := map[string]bool{}
+	for _, pp := range plugin.Cached() {
+		if pp.ID == "fakeco" {
+			for _, m := range pluginCatalog(pp) {
+				free[m.ID] = m.Free
+			}
+		}
+	}
+	if !free["fake-1"] || free["fake-claude"] {
+		t.Fatalf("free models %v, want fake-1 alone", free)
+	}
+
 	// the gateway asks the allowance by the account's UsageAgent
 	var agent string
 	for _, p := range All() {
diff --git a/internal/provider/plugins.go b/internal/provider/plugins.go
index d768a4db..0ac298cc 100644
--- a/internal/provider/plugins.go
+++ b/internal/provider/plugins.go
@@ -133,11 +133,18 @@ func pluginCatalog(pp plugin.Provider) []catalog.Model {
 		c := catalog.Model{
 			ID: m.ID, Name: m.Name, Provider: pp.ID, Released: m.Released,
 			APIs: []string{string(pluginProtocol(pp.ID, m))}, Images: m.Image,
-			Context: m.Input, Output: m.Output,
+			Context: m.Input, Output: m.Output, Free: m.Free,
 		}
 		if c.Context == 0 {
 			c.Context = m.Context
 		}
+		// Cursor's own ids no catalog knows: one not named a 1M model
+		// holds what the catalog knows its base to, as the built-in's did
+		if pp.ID == "cursor" && c.Context <= cursorDefaultContext {
+			if n := cursorContext(m.ID, m.Name); c.Context == 0 || n < c.Context {
+				c.Context = n
+			}
+		}
 		if c.Name == "" {
 			c.Name = m.ID
 		}