diff --git a/.changeset/sdk-floor-abort-rejection.md b/.changeset/sdk-floor-abort-rejection.md
new file mode 100644
index 00000000..f1013b62
--- /dev/null
+++ b/.changeset/sdk-floor-abort-rejection.md
@@ -0,0 +1,5 @@
+---
+'@openrouter/agent': patch
+---
+
+Raise the `@openrouter/sdk` floor to `^0.13.59`. That release fixes an unhandled promise rejection raised when a request is aborted while the SDK is still reading a non-streamed response body (OpenRouterTeam/typescript-sdk#350). Each aborted `callModel` run used to emit one stray `unhandledRejection`, which can crash Node processes running with `--unhandled-rejections=strict`.
diff --git a/packages/agent/package.json b/packages/agent/package.json
index 12ec2d2c..05bd823d 100644
--- a/packages/agent/package.json
+++ b/packages/agent/package.json
@@ -178,7 +178,7 @@
     "gen:version": "node scripts/gen-version.mjs"
   },
   "dependencies": {
-    "@openrouter/sdk": "^0.13.7",
+    "@openrouter/sdk": "^0.13.59",
     "zod": "^4.0.0"
   },
   "peerDependencies": {
diff --git a/packages/agent/tests/unit/sdk-abort-body-read.test.ts b/packages/agent/tests/unit/sdk-abort-body-read.test.ts
new file mode 100644
index 00000000..3362dfa6
--- /dev/null
+++ b/packages/agent/tests/unit/sdk-abort-body-read.test.ts
@@ -0,0 +1,83 @@
+/**
+ * Regression test for OpenRouterTeam/typescript-sdk#350.
+ *
+ * Before @openrouter/sdk 0.13.59, aborting a request while the SDK was still
+ * reading a non-streamed (JSON) response body left an internal APIPromise
+ * rejected with no handler, so each aborted call surfaced a process-level
+ * `unhandledRejection` even though the caller's own promise rejected and was
+ * handled. The agent can't intercept that from the outside, so this test pins
+ * the SDK floor: it runs the real SDK (no mocks) against a local server that
+ * sends JSON headers plus a partial body and then stalls.
+ */
+import http from 'node:http';
+import type { AddressInfo } from 'node:net';
+import { OpenRouterCore } from '@openrouter/sdk/core';
+import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
+import { callModel } from '../../src/inner-loop/call-model.js';
+
+let server: http.Server;
+let requestsReceived = 0;
+let unhandledRejections: unknown[] = [];
+const onUnhandled = (err: unknown) => {
+  unhandledRejections.push(err);
+};
+
+beforeEach(async () => {
+  requestsReceived = 0;
+  unhandledRejections = [];
+  process.on('unhandledRejection', onUnhandled);
+  server = http.createServer((req, res) => {
+    req.resume();
+    requestsReceived++;
+    // JSON (non-event-stream) response whose body never completes.
+    res.writeHead(200, {
+      'content-type': 'application/json',
+    });
+    res.write('{"id":');
+  });
+  await new Promise<void>((resolve) => server.listen(0, '127.0.0.1', resolve));
+});
+
+afterEach(async () => {
+  process.off('unhandledRejection', onUnhandled);
+  server.closeAllConnections();
+  await new Promise<void>((resolve) => server.close(() => resolve()));
+});
+
+describe('aborting during a non-streamed body read (typescript-sdk#350)', () => {
+  it('rejects every parallel call without leaking unhandled rejections', async () => {
+    const { port } = server.address() as AddressInfo;
+    const client = new OpenRouterCore({
+      apiKey: 'test-key',
+      serverURL: `http://127.0.0.1:${port}/api/v1`,
+    });
+    const controller = new AbortController();
+
+    const calls = [
+      1,
+      2,
+      3,
+    ].map(() =>
+      callModel(client, {
+        model: 'test-model',
+        input: 'hello',
+        signal: controller.signal,
+      }).getResponse(),
+    );
+
+    // Abort only once every request is mid-body, i.e. on the SDK's JSON read path.
+    await vi.waitFor(() => expect(requestsReceived).toBe(3));
+    controller.abort();
+
+    const settled = await Promise.allSettled(calls);
+    // Give any dangling rejection a chance to reach the process handler.
+    await new Promise((resolve) => setTimeout(resolve, 100));
+
+    expect(settled.map((s) => s.status)).toEqual([
+      'rejected',
+      'rejected',
+      'rejected',
+    ]);
+    expect(unhandledRejections).toHaveLength(0);
+  });
+});
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 6c5c086d..bd3ba0ae 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -42,8 +42,8 @@ importers:
   packages/agent:
     dependencies:
       '@openrouter/sdk':
-        specifier: ^0.13.7
-        version: 0.13.7
+        specifier: ^0.13.59
+        version: 0.13.59
       zod:
         specifier: ^4.0.0
         version: 4.3.6
@@ -403,8 +403,8 @@ packages:
     resolution: {integrity: sha512-oGB+UxlgWcgQkgwo8GcEGwemoTFt3FIO9ababBmaGwXIoBKZ+GTy0pP185beGg7Llih/NSHSV2XAs1lnznocSg==}
     engines: {node: '>= 8'}
 
-  '@openrouter/sdk@0.13.7':
-    resolution: {integrity: sha512-/QGoYdbFC2lqnVoCwtBX1+3Z5v6SF5hS1/dQisY0so3DzNAIQLHShA0OQVeAg20X0RG3CSKSCK0Ijnkt2rHDXA==}
+  '@openrouter/sdk@0.13.59':
+    resolution: {integrity: sha512-cQsewh5sctQAStPi1/1ExemjfvE9LZFcqZbukX4yOCP0gkbRKLjUzw53/PzYQAgyZp39L3acfmZF4O1hMGq4nA==}
 
   '@rollup/rollup-android-arm-eabi@4.60.1':
     resolution: {integrity: sha512-d6FinEBLdIiK+1uACUttJKfgZREXrF0Qc2SmLII7W2AD8FfiZ9Wjd+rD/iRuf5s5dWrr1GgwXCvPqOuDquOowA==}
@@ -1529,7 +1529,7 @@ snapshots:
       '@nodelib/fs.scandir': 2.1.5
       fastq: 1.20.1
 
-  '@openrouter/sdk@0.13.7':
+  '@openrouter/sdk@0.13.59':
     dependencies:
       zod: 4.3.6