diff --git a/packages/cli/src/commands/runs.test.ts b/packages/cli/src/commands/runs.test.ts
new file mode 100644
index 00000000..4107f455
--- /dev/null
+++ b/packages/cli/src/commands/runs.test.ts
@@ -0,0 +1,13 @@
+import { describe, expect, it } from 'vitest';
+import { runsCmd } from './runs.js';
+
+describe('run command registration', () => {
+  it('registers cloud run subcommands', () => {
+    const subcommands = runsCmd.commands.map((command) => command.name());
+
+    expect(subcommands).toContain('list');
+    expect(subcommands).toContain('status');
+    expect(subcommands).toContain('logs');
+    expect(subcommands).toContain('artifacts');
+  });
+});
diff --git a/packages/cli/src/commands/runs.ts b/packages/cli/src/commands/runs.ts
index fe67785b..8be6a7a0 100644
--- a/packages/cli/src/commands/runs.ts
+++ b/packages/cli/src/commands/runs.ts
@@ -46,3 +46,16 @@ runsCmd
     console.log(kleur.dim(`[stub] run logs · id=${runId} · follow=${!!opts.follow}${target}`));
     // TODO: stream NDJSON-over-SSE from /v1/runs/:id/logs.
   });
+
+runsCmd
+  .command('artifacts <runId>')
+  .description('List artifacts produced by one cloud run.')
+  .option('--json', 'emit machine-readable JSON')
+  .action((runId: string, opts: { json?: boolean }) => {
+    if (opts.json) {
+      console.log(JSON.stringify({ id: runId, artifacts: [] }, null, 2));
+      return;
+    }
+    console.log(kleur.dim(`[stub] run artifacts · id=${runId}`));
+    // TODO: GET /v1/runs/:id/artifacts.
+  });