chore: release main (#973)

Co-authored-by: dtmeadows <dmeadows@stainless.com>
Co-authored-by: Felix Becker <felix@anthropic.com>
Co-authored-by: stainless-app[bot] <142633134+stainless-app[bot]@users.noreply.github.com>
Co-authored-by: Mike Cluck <mcluck90@gmail.com>

Author: 4 people

.release-please-manifest.json

@@ -1,7 +1,7 @@
 {
-  ".": "0.83.0",
+  ".": "0.84.0",
   "packages/vertex-sdk": "0.15.0",
   "packages/bedrock-sdk": "0.27.0",
   "packages/foundry-sdk": "0.2.3",
-  "packages/aws-sdk": "0.2.1"
+  "packages/aws-sdk": "0.2.2"
 }

.stats.yml

@@ -1,4 +1,4 @@
 configured_endpoints: 34
-openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-efe26b096126c693462514b8cbd3ec3e376569232becbfb730cd26fb31c7c7e3.yml
+openapi_spec_url: https://storage.googleapis.com/stainless-sdk-openapi-specs/anthropic%2Fanthropic-04225437444990f383d0581df2f07022baab6ad510de0f3a8bd6b07c38d83cc9.yml
 openapi_spec_hash: cae9199aabfd7b87f0ff2dcc10760c92
-config_hash: 7aaaa92e479b2962424ce93d7d24e004
+config_hash: fcc34074db6eaf64bc99b578c6c82c61

CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+## 0.84.0 (2026-04-07)
+
+Full Changelog: [sdk-v0.83.0...sdk-v0.84.0](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.83.0...sdk-v0.84.0)
+
+### Features
+
+* **api:** Add support for claude-mythos-preview ([d4057b0](https://github.com/anthropics/anthropic-sdk-typescript/commit/d4057b0a9559d9a620e6a398a4199f5a416bc7a6))
+* **tools:** add AbortSignal support for tool runner ([#848](https://github.com/anthropics/anthropic-sdk-typescript/issues/848)) ([972d591](https://github.com/anthropics/anthropic-sdk-typescript/commit/972d5918a4d24b15686c8c407860cbfed4215ffa))
+
 ## 0.83.0 (2026-04-03)
 
 Full Changelog: [sdk-v0.82.0...sdk-v0.83.0](https://github.com/anthropics/anthropic-sdk-typescript/compare/sdk-v0.82.0...sdk-v0.83.0)

helpers.md

@@ -256,6 +256,48 @@ console.log(await runner);
 See [`examples/tools-helpers-advanced-streaming.ts`](examples/tools-helpers-advanced-streaming.ts) for a more
 in-depth example.
 
+#### Cancellation
+
+The `BetaToolRunner` supports cancellation via `AbortSignal`. The signal is passed to both API calls and tool `run` methods via the `BetaToolRunContext`.
+
+```ts
+const controller = new AbortController();
+
+const runner = anthropic.beta.messages.toolRunner(
+  {
+    model: 'claude-sonnet-4-5-20250929',
+    max_tokens: 1000,
+    messages: [{ role: 'user', content: 'Do a long task' }],
+    tools: [
+      betaZodTool({
+        name: 'long_task',
+        inputSchema: z.object({ query: z.string() }),
+        description: 'A long-running task',
+        run: async (input, context) => {
+          // Throws AbortError if already cancelled before run() was called
+          context?.signal?.throwIfAborted();
+          // Pass the signal to downstream operations for mid-flight cancellation
+          const result = await fetch(url, { signal: context?.signal });
+          return result.text();
+        },
+      }),
+    ],
+  },
+  { signal: controller.signal },
+);
+
+// Cancel after 5 seconds
+setTimeout(() => controller.abort(), 5000);
+
+const finalMessage = await runner;
+```
+
+You can also set or update the signal after creating the runner:
+
+```ts
+runner.setRequestOptions({ signal: controller.signal });
+```
+
 ### `betaZodTool`
 
 Zod schemas can be used to define the input schema for your tools:
@@ -386,9 +428,25 @@ runner.pushMessages(
 );
 ```
 
-#### `BetaToolRunner.generateToolResponse()`
+#### `BetaToolRunner.setRequestOptions()`
+
+Updates the request options (e.g., headers, abort signal) for future API calls and tool executions.
+
+```ts
+// Direct options update
+const controller = new AbortController();
+runner.setRequestOptions({ signal: controller.signal });
+
+// Using mutator function to preserve existing options
+runner.setRequestOptions((prev) => ({
+  ...prev,
+  signal: controller.signal,
+}));
+```
+
+#### `BetaToolRunner.generateToolResponse(signal?)`
 
-Gets the tool response for the last assistant message (if any tools need to be executed).
+Gets the tool response for the last assistant message (if any tools need to be executed). Accepts an optional `AbortSignal` parameter that will be passed to tool `run` methods; defaults to the signal from request options.
 
 ```ts
 for await (const message of runner) {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@anthropic-ai/sdk",
-  "version": "0.83.0",
+  "version": "0.84.0",
   "description": "The official TypeScript library for the Anthropic API",
   "author": "Anthropic <support@anthropic.com>",
   "types": "dist/index.d.ts",

packages/aws-sdk/CHANGELOG.md

@@ -1,5 +1,14 @@
 # Changelog
 
+## 0.2.2 (2026-04-07)
+
+Full Changelog: [aws-sdk-v0.2.1...aws-sdk-v0.2.2](https://github.com/anthropics/anthropic-sdk-typescript/compare/aws-sdk-v0.2.1...aws-sdk-v0.2.2)
+
+### Chores
+
+* **internal:** version bump ([eb97e85](https://github.com/anthropics/anthropic-sdk-typescript/commit/eb97e8577279fb150582297d2a0924a297185c3c))
+* **internal:** version bump ([8ebaf61](https://github.com/anthropics/anthropic-sdk-typescript/commit/8ebaf616d2e5c6aebc153f19a403dde41ab5a9f1))
+
 ## 0.2.1 (2026-04-03)
 
 Full Changelog: [aws-sdk-v0.2.0...aws-sdk-v0.2.1](https://github.com/anthropics/anthropic-sdk-typescript/compare/aws-sdk-v0.2.0...aws-sdk-v0.2.1)

packages/aws-sdk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@anthropic-ai/aws-sdk",
-  "version": "0.2.1",
+  "version": "0.2.2",
   "description": "The official TypeScript library for the Anthropic AWS API",
   "author": "Anthropic <support@anthropic.com>",
   "types": "dist/index.d.ts",

packages/vertex-sdk/yarn.lock

@@ -17,7 +17,7 @@
 
 "@anthropic-ai/sdk@file:../../dist":
   # x-release-please-start-version
-  version "0.83.0"
+  version "0.84.0"
   # x-release-please-end-version
   dependencies:
     json-schema-to-ts "^3.1.1"

src/helpers/beta/json-schema.ts

@@ -1,5 +1,5 @@
 import { FromSchema, JSONSchema } from 'json-schema-to-ts';
-import { Promisable, BetaRunnableTool } from '../../lib/tools/BetaRunnableTool';
+import { Promisable, BetaRunnableTool, BetaToolRunContext } from '../../lib/tools/BetaRunnableTool';
 import { BetaToolResultContentBlockParam } from '../../resources/beta';
 import { AutoParseableBetaOutputFormat } from '../../lib/beta-parser';
 import { AnthropicError } from '../..';
@@ -16,7 +16,10 @@ export function betaTool<const Schema extends Exclude<JSONSchema, boolean> & { t
   name: string;
   inputSchema: Schema;
   description: string;
-  run: (args: NoInfer<FromSchema<Schema>>) => Promisable<string | Array<BetaToolResultContentBlockParam>>;
+  run: (
+    args: NoInfer<FromSchema<Schema>>,
+    context?: BetaToolRunContext,
+  ) => Promisable<string | Array<BetaToolResultContentBlockParam>>;
 }): BetaRunnableTool<NoInfer<FromSchema<Schema>>> {
   if (options.inputSchema.type !== 'object') {
     throw new Error(

src/helpers/beta/zod.ts

@@ -3,7 +3,7 @@ import type { infer as zodInfer, ZodType } from 'zod';
 import * as z from 'zod/v4';
 import { AnthropicError } from '../../core/error';
 import { AutoParseableBetaOutputFormat } from '../../lib/beta-parser';
-import { BetaRunnableTool, Promisable } from '../../lib/tools/BetaRunnableTool';
+import { BetaRunnableTool, BetaToolRunContext, Promisable } from '../../lib/tools/BetaRunnableTool';
 import { BetaToolResultContentBlockParam } from '../../resources/beta';
 /**
  * Creates a JSON schema output format object from the given Zod schema.
@@ -50,7 +50,10 @@ export function betaZodTool<InputSchema extends ZodType>(options: {
   name: string;
   inputSchema: InputSchema;
   description: string;
-  run: (args: zodInfer<InputSchema>) => Promisable<string | Array<BetaToolResultContentBlockParam>>;
+  run: (
+    args: zodInfer<InputSchema>,
+    context?: BetaToolRunContext,
+  ) => Promisable<string | Array<BetaToolResultContentBlockParam>>;
 }): BetaRunnableTool<zodInfer<InputSchema>> {
   const jsonSchema = z.toJSONSchema(options.inputSchema, { reused: 'ref' });