B5g3-5: the tool runner receives a chunked seat answer and hands the bundle the whole

Builds: design 47 G §681, §712, A-237, A-249, A-139

Claude-Session: https://claude.ai/code/session_01NcbgfGKaxw984XyAPfLm4h

node-tools/internal/runtime/chunked_test.go

@@ -0,0 +1,29 @@
+package runtime
+
+import (
+	"testing"
+
+	"git.novox.be/novox/mesh-sdk/go/seatdef"
+)
+
+// Design 47 G A-249: a bundle's seat call is received by the runner in chunks only for a verb whose definition says `chunks`,
+// of no one machine.
+func TestOnlyAChunkedSeatVerbIsAskedInChunks(t *testing.T) {
+	c := &consumers{definitions: func() map[string]seatdef.Definition {
+		return map[string]seatdef.Definition{"mesh-catalog": {Verbs: []seatdef.Verb{{Name: "input", Chunks: true}, {Name: "entry"}}}}
+	}}
+	for key, want := range map[string]bool{
+		"seat:mesh-catalog.input":       true,
+		"seat:mesh-catalog.entry":       false,
+		"seat:mesh-catalog.input@ace":   false,
+		"seat:mesh-unread.input":        false,
+		"mesh-delivery-indexer.indexer": false,
+	} {
+		if got := c.chunked(key); got != want {
+			t.Errorf("chunked(%s) = %v, want %v", key, got, want)
+		}
+	}
+	if (&consumers{}).chunked("seat:mesh-catalog.input") {
+		t.Error("a runner that holds no seat definitions asks no chunks")
+	}
+}

node-tools/internal/runtime/gate.go

@@ -2,6 +2,7 @@ package runtime
 
 import (
 	"fmt"
+	"strings"
 
 	"git.novox.be/novox/mesh-sdk/go/approval"
 	"git.novox.be/novox/mesh-sdk/go/seatdef"
@@ -86,3 +87,21 @@ func (r *runner) unservedMarks(module string, regs []launch.Registration) []stri
 	}
 	return r.events.gate.Unserved(module, r.fingerprintOf(module), registered)
 }
+
+// chunked says whether key names a seat's verb whose definition says `chunks` (design 47 G A-249): its answer is received in
+// chunks by the runner, whose call hands the bundle the whole.
+func (c *consumers) chunked(key string) bool {
+	if c.definitions == nil || !strings.HasPrefix(key, "seat:") {
+		return false
+	}
+	seat, verb, ok := strings.Cut(strings.TrimPrefix(key, "seat:"), ".")
+	if !ok || strings.Contains(verb, "@") {
+		return false
+	}
+	for _, v := range c.definitions()[seat].Verbs {
+		if v.Name == verb {
+			return v.Chunks
+		}
+	}
+	return false
+}

node-tools/internal/runtime/runtime.go

@@ -915,7 +915,11 @@ func (b *moduleBus) Ask(params json.RawMessage) (json.RawMessage, error) {
 	if len(asked.Body) == 0 {
 		body = map[string]any{}
 	}
-	answered, err := b.all.conn.AskAs(b.module, asked.Key, body)
+	ask := b.all.conn.AskAs
+	if b.all.chunked(asked.Key) {
+		ask = b.all.conn.AskAsChunked // the runner receives the chunks of the answer; the bundle receives none (design 47 G A-249)
+	}
+	answered, err := ask(b.module, asked.Key, body)
 	if err != nil {
 		return nil, err
 	}