Defined in: [src/models/bedrock.ts:377](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L377) Options for creating a BedrockModel instance. ## Extends - [`BedrockModelConfig`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md) ## Properties ### maxTokens? ```ts maxTokens?: number; ``` Defined in: [src/models/bedrock.ts:276](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L276) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`maxTokens`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#maxtokens) --- ### temperature? ```ts temperature?: number; ``` Defined in: [src/models/bedrock.ts:283](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L283) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`temperature`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#temperature) --- ### topP? ```ts topP?: number; ``` Defined in: [src/models/bedrock.ts:290](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L290) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`topP`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#topp) --- ### stopSequences? ```ts stopSequences?: string[]; ``` Defined in: [src/models/bedrock.ts:295](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L295) Array of sequences that will stop generation when encountered. #### Inherited from [`BedrockModelConfig`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`stopSequences`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#stopsequences) --- ### cacheConfig? ```ts cacheConfig?: CacheConfig; ``` Defined in: [src/models/bedrock.ts:302](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L302) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`cacheConfig`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#cacheconfig) --- ### additionalRequestFields? ```ts additionalRequestFields?: JSONValue; ``` Defined in: [src/models/bedrock.ts:307](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L307) Additional fields to include in the Bedrock request. #### Inherited from [`BedrockModelConfig`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`additionalRequestFields`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#additionalrequestfields) --- ### additionalResponseFieldPaths? ```ts additionalResponseFieldPaths?: string[]; ``` Defined in: [src/models/bedrock.ts:312](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L312) Additional response field paths to extract from the Bedrock response. #### Inherited from [`BedrockModelConfig`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`additionalResponseFieldPaths`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#additionalresponsefieldpaths) --- ### additionalArgs? ```ts additionalArgs?: JSONValue; ``` Defined in: [src/models/bedrock.ts:318](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L318) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`additionalArgs`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#additionalargs) --- ### stream? ```ts stream?: boolean; ``` Defined in: [src/models/bedrock.ts:328](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L328) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`stream`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#stream) --- ### includeToolResultStatus? ```ts includeToolResultStatus?: boolean | "auto"; ``` Defined in: [src/models/bedrock.ts:336](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L336) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`includeToolResultStatus`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#includetoolresultstatus) --- ### guardrailConfig? ```ts guardrailConfig?: BedrockGuardrailConfig; ``` Defined in: [src/models/bedrock.ts:342](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L342) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`guardrailConfig`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#guardrailconfig) --- ### useNativeTokenCount? ```ts useNativeTokenCount?: boolean; ``` Defined in: [src/models/bedrock.ts:353](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L353) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`useNativeTokenCount`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#usenativetokencount) --- ### strictTools? ```ts strictTools?: boolean; ``` Defined in: [src/models/bedrock.ts:371](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L371) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`strictTools`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#stricttools) --- ### region? ```ts region?: string; ``` Defined in: [src/models/bedrock.ts:381](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L381) AWS region to use for the Bedrock service. --- ### clientConfig? ```ts clientConfig?: BedrockRuntimeClientConfig; ``` Defined in: [src/models/bedrock.ts:386](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L386) Configuration for the Bedrock Runtime client. --- ### requestTimeout? ```ts requestTimeout?: number; ``` Defined in: [src/models/bedrock.ts:397](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L397) 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 apiKey?: string; ``` Defined in: [src/models/bedrock.ts:404](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/bedrock.ts#L404) 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 modelId?: string; ``` Defined in: [src/models/model.ts:184](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/model.ts#L184) The model identifier. This typically specifies which model to use from the provider’s catalog. #### Inherited from [`BedrockModelConfig`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`modelId`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#modelid) --- ### contextWindowLimit? ```ts contextWindowLimit?: number; ``` Defined in: [src/models/model.ts:217](https://github.com/strands-agents/harness-sdk/blob/main/strands-ts/src/models/model.ts#L217) 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`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md).[`contextWindowLimit`](/pr-cms-5548/docs/api/typescript/BedrockModelConfig/index.md#contextwindowlimit)