Defined in: [src/models/bedrock.ts:344](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L344) Options for creating a BedrockModel instance. ## Extends - [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md) ## Properties ### maxTokens? ```ts optional maxTokens?: number; ``` Defined in: [src/models/bedrock.ts:243](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L243) Maximum number of tokens to generate in the response. #### See [https://docs.aws.amazon.com/bedrock/latest/APIReference/API\_runtime\_InferenceConfiguration.html](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_InferenceConfiguration.html) #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`maxTokens`](/docs/api/typescript/BedrockModelConfig/index.md#maxtokens) --- ### temperature? ```ts optional temperature?: number; ``` Defined in: [src/models/bedrock.ts:250](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L250) Controls randomness in generation. #### See [https://docs.aws.amazon.com/bedrock/latest/APIReference/API\_runtime\_InferenceConfiguration.html](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_InferenceConfiguration.html) #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`temperature`](/docs/api/typescript/BedrockModelConfig/index.md#temperature) --- ### topP? ```ts optional topP?: number; ``` Defined in: [src/models/bedrock.ts:257](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L257) Controls diversity via nucleus sampling. #### See [https://docs.aws.amazon.com/bedrock/latest/APIReference/API\_runtime\_InferenceConfiguration.html](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_InferenceConfiguration.html) #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`topP`](/docs/api/typescript/BedrockModelConfig/index.md#topp) --- ### stopSequences? ```ts optional stopSequences?: string[]; ``` Defined in: [src/models/bedrock.ts:262](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L262) Array of sequences that will stop generation when encountered. #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`stopSequences`](/docs/api/typescript/BedrockModelConfig/index.md#stopsequences) --- ### cacheConfig? ```ts optional cacheConfig?: CacheConfig; ``` Defined in: [src/models/bedrock.ts:269](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L269) Configuration for prompt caching. #### See [https://docs.aws.amazon.com/bedrock/latest/userguide/prompt-caching.html](https://docs.aws.amazon.com/bedrock/latest/userguide/prompt-caching.html) #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`cacheConfig`](/docs/api/typescript/BedrockModelConfig/index.md#cacheconfig) --- ### additionalRequestFields? ```ts optional additionalRequestFields?: JSONValue; ``` Defined in: [src/models/bedrock.ts:274](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L274) Additional fields to include in the Bedrock request. #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`additionalRequestFields`](/docs/api/typescript/BedrockModelConfig/index.md#additionalrequestfields) --- ### additionalResponseFieldPaths? ```ts optional additionalResponseFieldPaths?: string[]; ``` Defined in: [src/models/bedrock.ts:279](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L279) Additional response field paths to extract from the Bedrock response. #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`additionalResponseFieldPaths`](/docs/api/typescript/BedrockModelConfig/index.md#additionalresponsefieldpaths) --- ### additionalArgs? ```ts optional additionalArgs?: JSONValue; ``` Defined in: [src/models/bedrock.ts:285](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L285) Additional arguments to pass through to the Bedrock Converse API. #### See [https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/bedrock-runtime/command/ConverseStreamCommand/](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/client/bedrock-runtime/command/ConverseStreamCommand/) #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`additionalArgs`](/docs/api/typescript/BedrockModelConfig/index.md#additionalargs) --- ### stream? ```ts optional stream?: boolean; ``` Defined in: [src/models/bedrock.ts:295](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L295) Whether or not to stream responses from the model. This will use the ConverseStream API instead of the Converse API. #### See - [https://docs.aws.amazon.com/bedrock/latest/APIReference/API\_runtime\_Converse.html](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_Converse.html) - [https://docs.aws.amazon.com/bedrock/latest/APIReference/API\_runtime\_ConverseStream.html](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_ConverseStream.html) #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`stream`](/docs/api/typescript/BedrockModelConfig/index.md#stream) --- ### includeToolResultStatus? ```ts optional includeToolResultStatus?: boolean | "auto"; ``` Defined in: [src/models/bedrock.ts:303](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L303) Flag to include status field in tool results. - `true`: Always include status field - `false`: Never include status field - `'auto'`: Automatically determine based on model ID (default) #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`includeToolResultStatus`](/docs/api/typescript/BedrockModelConfig/index.md#includetoolresultstatus) --- ### guardrailConfig? ```ts optional guardrailConfig?: BedrockGuardrailConfig; ``` Defined in: [src/models/bedrock.ts:309](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L309) Guardrail configuration for content filtering and safety controls. #### See [https://docs.aws.amazon.com/bedrock/latest/userguide/guardrails.html](https://docs.aws.amazon.com/bedrock/latest/userguide/guardrails.html) #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`guardrailConfig`](/docs/api/typescript/BedrockModelConfig/index.md#guardrailconfig) --- ### useNativeTokenCount? ```ts optional useNativeTokenCount?: boolean; ``` Defined in: [src/models/bedrock.ts:320](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L320) Whether to use the native Bedrock CountTokens API. When `true`, `countTokens()` calls the Bedrock CountTokens API for accurate counts. When `false` or not set (default), skips the API call and uses the character-based heuristic estimator. #### Default Value ```ts false ``` #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`useNativeTokenCount`](/docs/api/typescript/BedrockModelConfig/index.md#usenativetokencount) --- ### strictTools? ```ts optional strictTools?: boolean; ``` Defined in: [src/models/bedrock.ts:338](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L338) Constrain the model to emit tool names and inputs that conform to each tool’s schema. When `true`, every tool is sent with `strict: true` and a copy of its `inputSchema` with `additionalProperties: false` added to each object type, so a free-form `{ type: 'object' }` parameter becomes one the model can only fill with `{}`. Bedrock rejects schemas that use features outside its strict subset (recursive or external `$ref`, `minimum`/`maximum`/ `multipleOf`, `minLength`/`maxLength`, `additionalProperties` other than `false`) with a 400 at request time, and compiles each new schema on first use, which can take minutes. Incompatible with citations for Anthropic models. #### See - [https://docs.aws.amazon.com/bedrock/latest/userguide/structured-output.html](https://docs.aws.amazon.com/bedrock/latest/userguide/structured-output.html) - [https://docs.aws.amazon.com/bedrock/latest/APIReference/API\_runtime\_ToolSpecification.html](https://docs.aws.amazon.com/bedrock/latest/APIReference/API_runtime_ToolSpecification.html) #### Default Value ```ts false ``` #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`strictTools`](/docs/api/typescript/BedrockModelConfig/index.md#stricttools) --- ### region? ```ts optional region?: string; ``` Defined in: [src/models/bedrock.ts:348](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L348) AWS region to use for the Bedrock service. --- ### clientConfig? ```ts optional clientConfig?: BedrockRuntimeClientConfig; ``` Defined in: [src/models/bedrock.ts:353](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L353) Configuration for the Bedrock Runtime client. --- ### requestTimeout? ```ts optional requestTimeout?: number; ``` Defined in: [src/models/bedrock.ts:364](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L364) Milliseconds of stream inactivity before a Bedrock request is aborted. Applies to the default request handler and takes precedence over `clientConfig.requestHandler.requestTimeout`. Ignored when `clientConfig.requestHandler` is a constructed handler instance, whose own timeouts apply. #### Default Value ```ts 120000 ``` --- ### apiKey? ```ts optional apiKey?: string; ``` Defined in: [src/models/bedrock.ts:371](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L371) Amazon Bedrock API key for bearer token authentication. When provided, requests use the API key instead of SigV4 signing. #### See [https://docs.aws.amazon.com/bedrock/latest/userguide/api-keys.html](https://docs.aws.amazon.com/bedrock/latest/userguide/api-keys.html) --- ### modelId? ```ts optional modelId?: string; ``` Defined in: [src/models/model.ts:183](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/model.ts#L183) The model identifier. This typically specifies which model to use from the provider’s catalog. #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`modelId`](/docs/api/typescript/BedrockModelConfig/index.md#modelid) --- ### contextWindowLimit? ```ts optional contextWindowLimit?: number; ``` Defined in: [src/models/model.ts:216](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/model.ts#L216) Maximum context window size in tokens for the model. This value represents the total token capacity shared between input and output. When not provided, it is automatically resolved from a built-in lookup table based on the configured model ID. An explicit value always takes precedence. When `modelId` is changed via `updateConfig()`, this value is automatically re-resolved if it was initially auto-populated. Explicitly set values are preserved. #### Inherited from [`BedrockModelConfig`](/docs/api/typescript/BedrockModelConfig/index.md).[`contextWindowLimit`](/docs/api/typescript/BedrockModelConfig/index.md#contextwindowlimit)