diff --git a/docs/configuration.md b/docs/configuration.md
index 1573a25..42f99cd 100644
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -509,10 +509,10 @@ or left the pool, or that the accounts were not known before), with "launch agai
 it, or change a setting first"; while the launch is pointed the readout says where it
 runs and its pool ("runs on <machine>: GPT 2"). The next press launches the held review
 while the press's own inputs hold (team, options, machine, the saved profile and
-authority), OMP's defaults and skill catalog revisions are those it was made with, the
-reads it rests on succeed and its launch is still the step (the list in use serves it);
-the first of them that fails drops it for good, and the press after that reviews again.
-Accounts that moved after it are refused by the launch's own check (below). A press
+authority), a selected skill catalog's revision is the one it was made with, the reads it
+rests on succeed and its launch is still the step (the list in use serves it); the first
+of them that fails drops it for good, and the press after that reviews again. Accounts
+or OMP defaults that moved after it are refused by the launch's own check (below). A press
 stands on the same inputs: a change of one of them while it runs stops it, while an
 observation that moves meanwhile does not, since the launch reads the accounts and
 OMP's defaults again itself and refuses when they moved under its review. Choosing a
diff --git a/plugins/code/generator/workbench-model.ts b/plugins/code/generator/workbench-model.ts
index e363ee0..fd5ce11 100644
--- a/plugins/code/generator/workbench-model.ts
+++ b/plugins/code/generator/workbench-model.ts
@@ -404,8 +404,9 @@ export function useWorkbench({ host, target, machine, rosterError, available }:
   // What a press stands on: what the person chose and where, the saved profile and the authority it acts with. A launch
   // reads the accounts and OMP's defaults again itself and refuses when they moved under its review (workflow.ts
   // `reviewedComposition`), so an observation that moves while it runs never stops it on its own. A held review stands
-  // on the same inputs (`HeldReview.pressEpoch`) and the pins `heldCurrent` names; accounts that moved after it are
-  // refused by that same check when it is launched.
+  // on the same inputs (`HeldReview.pressEpoch`) and the pins `heldCurrent` names; accounts or OMP defaults that moved
+  // after it are refused by that same check when it is launched, so neither is pinned here: the panel's own read of the
+  // defaults may be older than the press's, and pinning it would drop a hold the moment it is made.
   const pressKey = JSON.stringify([generation, authority.current.epoch, draftGeneration.current.epoch, machineId,
     record?.revision, record?.active?.digest, record?.selection, skillChoice, automation]);
   const pressScope = useRef({ key: pressKey, epoch: 0 });
@@ -426,7 +427,7 @@ export function useWorkbench({ host, target, machine, rosterError, available }:
   const heldCurrent = held !== null && held.pressEpoch === pressEpoch && writable && available && configurationCurrent &&
     defaults.error === null && skillCatalog.error === null && setup.error === null && !!record?.active &&
     held.review.destination.machineId === machineId && held.review.composition.revision === record?.revision &&
-    held.review.native.defaultsRevision === defaults.data?.revision && !unsaved && skillProblems.length === 0 &&
+    !unsaved && skillProblems.length === 0 &&
     (held.review.native.skills.mode !== "selected" || held.review.native.skills.catalogRevision === skillCatalog.data?.revision) &&
     listServes({ verification, unservedLead: heldLead });
   // Whatever stops a held review from standing drops it for good: a read that fails and recovers never brings it back.
diff --git a/plugins/scripts/verify-browser.ts b/plugins/scripts/verify-browser.ts
index b5ae95a..1d0c734 100755
--- a/plugins/scripts/verify-browser.ts
+++ b/plugins/scripts/verify-browser.ts
@@ -447,7 +447,9 @@ async function focusLaunch(browser: BrowserInstance): Promise<void> {
   await tabTo(browser, "the launch", launchButton);
 }
 async function chooseMachine(browser: BrowserInstance, machineId: string, name: string): Promise<void> {
-  await until(browser, "the launch names its machine", `!!${machinePicker}?.textContent`);
+  // The picker reads "no machine" until the panel has picked one, once every online machine has answered; its word then
+  // changes width, so a press aimed before that pick can miss it.
+  await until(browser, "the launch names its machine", `!!${machinePicker}?.textContent && ${machinePicker}.getAttribute('aria-label') !== 'Machine: none'`);
   if (await browser.evaluate<boolean>(`${machinePicker}.textContent === ${JSON.stringify(name)}`)) return;
   await click(browser, machinePicker);
   await until(browser, "the machine list opens", `${machineList} !== null`);
@@ -730,6 +732,46 @@ async function watchActions(browser: BrowserInstance, server: TestServer): Promi
   return { requests, stop };
 }
 
+/**
+ * This browser's answers to the actions `names` since its page last loaded, read from each response's own body once it
+ * has landed: `answered` counts those that succeeded, by action, and `waiting` those asked and not answered yet. A
+ * request still in flight when the page navigates away is reported neither finished nor failed, so a load starts afresh.
+ */
+async function watchAnswers(browser: BrowserInstance, server: TestServer, names: readonly string[]):
+  Promise<{ answered: (name: string) => number; waiting: () => number; stop: () => void }> {
+  const prefix = `${server.httpUrl}/api/actions/`;
+  const asked = new Map<string, string>(), answered = new Map<string, number>();
+  let loads = 0;
+  const offLoaded = browser.on("Page.frameNavigated", event => {
+    const frame = event.frame as { parentId?: string } | undefined;
+    if (frame === undefined || frame.parentId !== undefined) return;
+    loads++;
+    asked.clear();
+    answered.clear();
+  });
+  const offAsked = browser.on("Network.requestWillBeSent", event => {
+    const request = event.request as { url?: string } | undefined;
+    const name = request?.url?.startsWith(prefix) ? decodeURIComponent(request.url.slice(prefix.length)) : null;
+    if (name !== null && names.includes(name)) asked.set(String(event.requestId), name);
+  });
+  const offFailed = browser.on("Network.loadingFailed", event => { asked.delete(String(event.requestId)); });
+  const offFinished = browser.on("Network.loadingFinished", event => {
+    const requestId = String(event.requestId), name = asked.get(requestId), load = loads;
+    if (name === undefined) return;
+    void (async () => {
+      try {
+        const { result } = await browser.send("Network.getResponseBody", { requestId });
+        const body = result?.base64Encoded === true ? Buffer.from(String(result.body), "base64").toString("utf8") : String(result?.body);
+        const outcome: unknown = JSON.parse(body);
+        if (load === loads && typeof outcome === "object" && outcome !== null && "ok" in outcome && outcome.ok === true) answered.set(name, (answered.get(name) ?? 0) + 1);
+      } catch { /* A body that cannot be read is no answer. */ }
+      finally { if (load === loads) asked.delete(requestId); }
+    })();
+  });
+  await browser.send("Network.enable", {});
+  return { answered: name => answered.get(name) ?? 0, waiting: () => asked.size, stop: () => { offLoaded(); offAsked(); offFailed(); offFinished(); } };
+}
+
 function noNativeEffects(requests: BrowserAction[]): void {
   const effects = ["atyrode.code.suggest", "atyrode.code.runSession", "atyrode.code.configureServices",
     "atyrode.omp.startInventory", "atyrode.omp.startBenchmark", "atyrode.omp.reviewSession", "atyrode.omp.prepareSession",
@@ -3210,13 +3252,14 @@ async function keptChecksScenario(browser: BrowserInstance, server: TestServer,
     assert(narrowed[0]?.[1] === "warn" && narrowed.length > 1 && narrowed.slice(1).every(([text]) => text.includes(" → ")) && narrowed.some(([text]) => text.startsWith("lane ")),
       `The stop names each setting the check moved, the lane among them: ${JSON.stringify(narrowed)}`);
     assert.equal(await browser.evaluate("globalThis.__codeAsked"), false, "Within the approval the check never shows approve and the launch never waits on it");
-    assert.deepEqual(requested(from), ["atyrode.code.initializeConfiguration", "atyrode.omp.startInventory", "atyrode.omp.startBenchmark",
-      "atyrode.code.promoteCatalog"],
+    const checkedOnly = ["atyrode.code.initializeConfiguration", "atyrode.omp.startInventory", "atyrode.omp.startBenchmark", "atyrode.code.promoteCatalog"];
+    assert.deepEqual(requested(from), checkedOnly,
       "The check within the approval spends without asking, and the press stops on the narrowed profile before reviewing or launching it");
     await pointOf(browser, launchButton);
     await until(browser, "pointed, the launch says it goes on with the narrowed profile", `${readout}.textContent.includes('launch to go on with it, or change a setting first')`);
     await pointAway(browser);
     await until(browser, "Launch is ready to go on with the narrowed profile", launchIs("launch", "ready"));
+    assert.deepEqual(requested(from), checkedOnly, "Once the stopped press has settled, still nothing has reviewed or launched the narrowed profile");
     from = trace.requests.length;
     await click(browser, launchButton);
     await waitFor(() => prepared.length === 2, timeout, 50);
@@ -4848,7 +4891,8 @@ async function syntheticPreviewScenario(browser: BrowserInstance, server: TestSe
     await click(browser, launchButton);
     await until(browser, "the press stops on a review unlike what the panel showed, and says what differs", `${stops} && ${launchIs("launch", "ready")}`);
     const differs = await browser.evaluate<[string, string | null][]>(launchParts);
-    assert(differs[0]?.[1] === "warn" && differs.length > 1, `The stop names what differs: ${JSON.stringify(differs)}`);
+    assert(differs[0]?.[1] === "warn" && differs.some(([text]) => text === "GPT accounts join the pool"),
+      `The stop names what differs, the GPT accounts that joined the pool among it: ${JSON.stringify(differs)}`);
     assert.deepEqual(launchDoors(heldAt), ["atyrode.omp.reviewSession"], "The press reviews once and stops before launching");
     await browser.evaluate(`(() => {
       const held = { lost: !(${stops}), watch: new MutationObserver(() => { if (!(${stops})) held.lost = true; }) };
@@ -5274,9 +5318,16 @@ async function agentLaunchScenario(browser: BrowserInstance, server: TestServer,
   });
   const agentName = await codeAgentName(workspace.id);
   const actions = await watchActions(browser, server);
+  // The panel's read of Code's Runs (workflow.ts `readRuns`) answers whether this sponsor may register Agents, from Code's
+  // Agents read beside the terminal inventory; a press before it has landed takes the reviewed session.
+  const answers = await watchAnswers(browser, server, ["core.access.listAgentsV2", "core.terminals.listAll"]);
+  // A door that validates an Agent's profile is asked again while Manifold refuses it as busy (workflow.ts `patient`), so a
+  // run of one of those is one step of the press.
+  const validating = ["core.access.registerAgentV2", "core.access.updateAgentV2", "core.access.launchRun"];
   /** The launch's doors the browser called since `from`, in order: the session's review and preparation, and the Agent and Run doors, reads left out. */
   const launchDoors = (from: number) => actions.requests.slice(from).map(request => request.name).filter(name => name === "atyrode.omp.reviewSession" ||
-    name === "atyrode.omp.prepareSession" || (name.startsWith("core.access.") && !["core.access.listAgentsV2", "core.access.listRunsV2", "core.access.inspectRunV2"].includes(name)));
+    name === "atyrode.omp.prepareSession" || (name.startsWith("core.access.") && !["core.access.listAgentsV2", "core.access.listRunsV2", "core.access.inspectRunV2"].includes(name)))
+    .filter((name, index, names) => !(validating.includes(name) && names[index - 1] === name));
   try {
     await arrangeWorkbench(server, sponsor);
     await browser.evaluate(identity(sponsor));
@@ -5287,6 +5338,8 @@ async function agentLaunchScenario(browser: BrowserInstance, server: TestServer,
     // to launch it, Code cancels it, and the same press goes on to the reviewed session, which the fixture refuses at its
     // preparation. The launch reads launching… throughout.
     await until(browser, "the sponsor's saved profile is ready to launch", launchIs("launch", "ready"));
+    await waitFor(() => answers.answered("core.access.listAgentsV2") > 0 && answers.waiting() === 0, timeout, 50);
+    await settle(browser);
     const beforeLaunch = actions.requests.length, launching = await watchLaunch(browser);
     await click(browser, launchButton);
     await waitFor(() => prepares === 1, timeout, 50);
@@ -5713,6 +5766,7 @@ async function agentLaunchScenario(browser: BrowserInstance, server: TestServer,
     heldControl.release();
     heldList.release();
     actions.stop();
+    answers.stop();
     await fixture.stop();
     await browser.evaluate(identity(writer));
   }