the builds list keeps the swarm's deploy builds too

build_meta, the build of each agent from internal/meta before a deploy, now
writes its result into the same list as the config PR builds: the agent, the
internal/meta commit, how it ended and what nix printed. The builds card titles
them by agent and shows them with the PR builds.

frontend/packages/swarm-ui/src/pages/builds/BuildsPage.tsx

@@ -1,6 +1,6 @@
-// <BuildsCard> — the swarm builder's recent builds, newest first: which agent
-// config PR heads it built, how each ended, and what `nix` printed when one
-// failed. One card per build; selecting a card opens it. Reads
+// <BuildsCard> — the swarm builder's recent builds, newest first: the agent
+// config PR heads it built, and the agents it built from `internal/meta` before
+// a deploy, how each ended, and what `nix` printed when one failed. One card per build; selecting a card opens it. Reads
 // `GET /api/builder/runs`. A `swarm-builder` commit status links to the jobs
 // page as `/jobs?run=<id>`, which opens that build's card and scrolls to it.
 // The card sits under the job graph on that page; the old `/builds` address
@@ -22,6 +22,7 @@ import {
   OUTCOME_LABEL,
   OUTCOME_TONE,
   bodyText,
+  runTitle,
   wantedRun,
   type BuildRun,
 } from "./builds-types.js";
@@ -56,9 +57,7 @@ function BuildCard({
           onClick={onToggle}
         >
           <span class="ui-builds-title">
-            <strong>
-              {run.repo} #{run.pr}
-            </strong>
+            <strong>{runTitle(run)}</strong>
             <code>{run.head_sha.slice(0, 7)}</code>
           </span>
           <Badge
@@ -138,9 +137,9 @@ function BuildsBody() {
         />
       </div>
       <p>
-        The agent config PR heads the swarm builder built, newest first: how
-        each ended, and what nix printed when one failed. Select a build to read
-        it.
+        What the swarm builder built, newest first: agent config PR heads, and
+        the agents it builds from internal/meta before a deploy. How each ended,
+        and what nix printed when one failed. Select a build to read it.
       </p>
       {error ? (
         <ApiErrorPanel
@@ -178,7 +177,7 @@ export function BuildsCard() {
     <LazyDisclosure
       title="builds"
       icon="🔨"
-      hint="the agent config PRs the swarm builder built"
+      hint="what the swarm builder built: agent config PRs and deploys"
       startOpen={wantedRun(useSearch()) !== null}
     >
       <BuildsBody />

frontend/packages/swarm-ui/src/pages/builds/builds-types.ts

@@ -10,9 +10,12 @@ export type BuildOutcome = "built" | "failed" | "error";
 export interface BuildRun {
   /** `<agent>-<first 12 of head_sha>-<started_unix>`. */
   id: string;
-  /** `agent-configs/<agent>`. */
+  /** `agent-configs/<agent>` for a config PR's build, `internal/meta` for a deploy's. */
   repo: string;
-  pr: number;
+  /** The config PR a build checks; a deploy's build has none. */
+  pr?: number | null;
+  /** The agent a deploy's build built; a PR build's is in `repo`. */
+  agent?: string | null;
   head_sha: string;
   started_unix: number;
   finished_unix: number;
@@ -37,6 +40,16 @@ export const OUTCOME_TONE: Record<BuildOutcome, BadgeTone> = {
   error: "warning",
 };
 
+/**
+ * A run's card title: `agent-configs/atlas #3` for a config PR's build,
+ * `atlas from internal/meta` for a deploy's (the swarm builds every agent from
+ * `internal/meta` before sending its deploy).
+ */
+export function runTitle(run: BuildRun): string {
+  if (run.pr !== undefined && run.pr !== null) return `${run.repo} #${run.pr}`;
+  return run.agent ? `${run.agent} from ${run.repo}` : run.repo;
+}
+
 /** The run a `?run=<id>` query names, or `null` when it names none. */
 export function wantedRun(search: string): string | null {
   const id = new URLSearchParams(search).get("run");

frontend/packages/swarm-ui/test/builds-types.test.mjs

@@ -3,7 +3,11 @@
 // stripping, so the `.ts` module is imported as it is.
 import assert from "node:assert/strict";
 import { test } from "node:test";
-import { bodyText, wantedRun } from "../src/pages/builds/builds-types.ts";
+import {
+  bodyText,
+  runTitle,
+  wantedRun,
+} from "../src/pages/builds/builds-types.ts";
 
 const base = {
   id: "atlas-abc-1",
@@ -49,3 +53,20 @@ test("a run with no text for its outcome shows no body", () => {
   assert.equal(bodyText({ ...base, outcome: "failed" }), null);
   assert.equal(bodyText({ ...base, outcome: "built", error_tail: "x" }), null);
 });
+
+test("a config PR's build is titled by its repo and PR, a deploy's by its agent", () => {
+  assert.equal(
+    runTitle({ ...base, outcome: "built" }),
+    "agent-configs/atlas #3",
+  );
+  const deploy = {
+    ...base,
+    repo: "internal/meta",
+    pr: undefined,
+    agent: "atlas",
+    outcome: "built",
+  };
+  assert.equal(runTitle(deploy), "atlas from internal/meta");
+  assert.equal(runTitle({ ...deploy, pr: null }), "atlas from internal/meta");
+  assert.equal(runTitle({ ...deploy, agent: null }), "internal/meta");
+});