morgana: row 277 (#1782) r4: a thread.claims error with no bus code still throws and prints nothing (duckworth-0123 N1, M9); BUILD.md records the rebase onto 0165be266 and N2/N3

agents/morgana/work/queue-277/BUILD.md

@@ -244,3 +244,24 @@ the fix is r2 of the build. On r2, thread-claims 5/5, cli tester 9/9, other-tree
 
 Manifest adds packages/cli/README.md (10 paths). Nothing here has run yet. It runs whole after the
 rebase onto 194, on Sage's CLEAR.
+
+## r4: rebase onto 0165be266 and Duckworth's delta notes (sage-2587, duckworth-0123)
+
+- **Rebase.** Commits 1-6 are cherry-picked onto refactor 0165be266, which has 194, 236 and 274
+  landed, on morgana/row277-0165. The range-diff is `=` for all six and the patch-ids are unchanged.
+  Four files auto-merged around upstream lines: bus README, broker.mjs, cli README and cli.mjs.
+- **N1 (duckworth-0123).** The N1 catch's rethrow branch had no test, so a mutant that takes every
+  error as a refusal (it would print `refused undefined`) survived. A new cli tester.test.mjs test
+  throws from thread.claims with no code, then with `ECONNRESET`. Each rejects main with the same
+  error and prints nothing. M9 (the code check dropped) is killed by that test.
+- **N2 (duckworth-0123), accepted.** Since 274, the owner's and a reader's thread.claims can include
+  user threads (id, instance, holder run, harness, time; no name, no messages). That is the design
+  join approved in duckworth-0118, with no owner filter, and owner-visible run governance under
+  sage-1368 B1.
+- **N3 (duckworth-0123), for later.** When 264a and 277 meet, thread.claims's latest row per thread
+  goes per session, and thread-claims.test.mjs needs the default session. It is checked in whichever
+  round lands second.
+
+Gate (sage-2590): the touched test files plus user-principal, other-tree and host whole; the bus,
+cli, harness, business and seat suites; every scripts/test-*.sh; M1-M9. The kit prints HEAD and the
+manifest check first. Nothing runs before Sage's CLEAR.

packages/cli/tests/tester.test.mjs

@@ -160,6 +160,23 @@ test("a refused thread.claims still prints the role rows and the refusal's code"
   assert.deepEqual(s.calls.human.map((c) => c.verb), ["agents"]);
 });
 
+// Row 277 r4 (duckworth-0123 N1): an error with no bus code is not a refusal, so it still throws and
+// nothing prints: no code at all, and a code that isn't the bus's shape.
+test("a thread.claims error without a bus code still throws and prints nothing", async (t) => {
+  const s = setup(t);
+  for (const code of [undefined, "ECONNRESET"]) {
+    const error = new Error("socket closed");
+    if (code !== undefined) error.code = code;
+    const failing = (business) => async (verb, args) => {
+      if (verb !== "thread.claims") return s.deps.transport(business)(verb, args);
+      throw error;
+    };
+    const x = io();
+    await assert.rejects(main(["agents", "--business", "demo"], x, { ...s.deps, transport: failing }), (e) => e === error, String(code));
+    assert.equal(x.out.text, "", String(code));
+  }
+});
+
 // Row 170 (#1667): the bus refuses a tester's message to a stopped role and stores nothing, and
 // talk says so and exits 3.
 test("talk --tester to a stopped role exits 3, prints no sent line and stores nothing", async (t) => {