Bind a consumer from the plan entry its key carries, not only from the plans

The seat keys a consumer's provisions from its wanted and newest builds but
keeps the plan of its wanted build alone, and the provider helper bound only
from plans: a requirement the newest build adds stayed asked with no word,
and the want waiting for it never moved (mcp-endpoint on ace and shanks).
A provision now carries the plan entry it was composed from; the helper
binds from it where no plan names the key, the plan winning where both do,
and says each key it can bind from neither (issue 1126 review 1).

Claude-Session: https://claude.ai/code/session_01NcbgfJ9Gum47zkFKWRaovL

go/provider/provider.go

@@ -370,6 +370,31 @@ func (p *Provider) passIn(ctx context.Context, in Inputs) ([]Outcome, error) {
 			gated[key] = pr
 		}
 	}
+	// **A key no plan names is bound from the entry it carries** (issue 1126): the seat keys a consumer's provisions
+	// from its wanted and its newest builds, and keeps the plan at its wanted build alone, so a requirement the newest
+	// build adds has a key before any plan names it, and the want that waits for it waits on this provider. The plan
+	// wins where both say it. A key with no entry is said, never left without a word.
+	planned := map[string]bool{}
+	for _, b := range binds {
+		planned[b.Key()] = true
+	}
+	for _, key := range sortedKeys(gated) {
+		pr := gated[key]
+		if planned[key] || pr.State == provisions.Retiring || unknown[consumerOf(key)] {
+			continue
+		}
+		if pr.Plan == nil {
+			o := Outcome{Key: key, Status: Waiting, Why: "asked, but no plan names it and its key carries no plan entry, " +
+				"so whom it binds is not known; mesh-provisioner composes the entry"}
+			out = append(out, o)
+			p.say(key, o.Status+" "+o.Why)
+			continue
+		}
+		b := *pr.Plan
+		binds = append(binds, Entry{Provider: p.opts.Node, ProviderModule: p.opts.Module, Provision: pr.Provision,
+			Consumer: pr.Consumer.Node, Module: pr.Consumer.Module, Local: pr.Local, Contributes: b.Contributes, At: b.At,
+			From: b.From, As: b.As, Names: b.Names, CredentialForm: b.CredentialForm, Name: b.Name})
+	}
 	want := map[string]bool{}
 	for _, b := range binds {
 		key := b.Key()

go/provider/provider_test.go

@@ -955,3 +955,48 @@ func TestTheSeatsKeysSayWhenAProviderActsAndWhenItLetsGo(t *testing.T) {
 		t.Errorf("gone %v, made %v: let go once, on the warrant, and made from the vault's value", m.gone, m.made)
 	}
 }
+
+// Issue 1126 review 1 (mcp-endpoint asked on ace and shanks, 2026-11-02 11:56): a consumer's key composed from its newest
+// build carries the plan entry it was composed from, though its wanted build's plan names no such provision; the
+// provider binds it from the key and provides it, so the want that waits for it moves. A key of this provider that
+// carries no entry and no plan names is said, never bound silently or left without a word.
+func TestAKeyNoPlanNamesIsBoundFromTheEntryItCarries(t *testing.T) {
+	bus, m := newStandIn(), &maker{}
+	v := &vault{values: map[string]string{"pair/novox/postgres-database/ace/letta": "letta-secret-1"}}
+	// letta's wanted plan names nothing of postgres; its key, from its newest build, carries the entry.
+	planned(t, bus, "ace", "letta")
+	entry := catalogue.PlanProvision{Provision: "postgres-database", Provider: "novox", ProviderModule: "postgres", As: "mesh_ace_letta"}
+	pr := provisions.Provision{Provision: "postgres-database", Consumer: provisions.End{Module: "letta", Node: "ace"},
+		Provider: provisions.End{Module: "postgres", Node: "novox"}, State: provisions.Asked, Plan: &entry}
+	raw, err := provisions.Encode(pr)
+	if err != nil {
+		t.Fatal(err)
+	}
+	_ = bus.Put(context.Background(), provisions.ProvisionsBucket, "ace.letta.postgres-database", raw)
+	// And umami's key carries none: asked, but no plan names it.
+	bare := provisions.Provision{Provision: "postgres-database", Consumer: provisions.End{Module: "umami", Node: "g14"},
+		Provider: provisions.End{Module: "postgres", Node: "novox"}, State: provisions.Asked}
+	raw, _ = provisions.Encode(bare)
+	_ = bus.Put(context.Background(), provisions.ProvisionsBucket, "g14.umami.postgres-database", raw)
+
+	out, err := postgres(bus, v, m).Pass(context.Background())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if e := entryOf(t, bus, "ace.letta.postgres-database"); e.Consumer != "ace" || e.Module != "letta" || e.Refused != "" {
+		t.Errorf("the entry %+v", e)
+	}
+	said := map[string]Outcome{}
+	for _, o := range out {
+		said[o.Key] = o
+	}
+	if said["ace.letta.postgres-database"].Status != Answered {
+		t.Errorf("letta: %+v", said["ace.letta.postgres-database"])
+	}
+	if o := said["g14.umami.postgres-database"]; o.Status != Waiting || !strings.Contains(o.Why, "no plan names it") {
+		t.Errorf("umami: %+v", o)
+	}
+	if bus.get(BucketOf("postgres"), "g14.umami.postgres-database") != nil {
+		t.Error("a key with no entry and no plan was bound")
+	}
+}