Defined in: [src/models/bedrock.ts:235](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L235) Configuration interface for AWS Bedrock model provider. Extends BaseModelConfig with Bedrock-specific configuration options for model parameters, caching, and additional request/response fields. ## Example ```typescript const config: BedrockModelConfig = { modelId: 'global.anthropic.claude-sonnet-4-6', maxTokens: 1024, temperature: 0.7, cacheConfig: { strategy: 'auto' } } ``` ## Extends - [`BaseModelConfig`](/docs/api/typescript/BaseModelConfig/index.md) ## Extended by - [`BedrockModelOptions`](/docs/api/typescript/BedrockModelOptions/index.md) ## Properties ### maxTokens? ```ts optional maxTokens?: number; ``` Defined in: [src/models/bedrock.ts:241](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L241) 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) #### Overrides [`BaseModelConfig`](/docs/api/typescript/BaseModelConfig/index.md).[`maxTokens`](/docs/api/typescript/BaseModelConfig/index.md#maxtokens) --- ### temperature? ```ts optional temperature?: number; ``` Defined in: [src/models/bedrock.ts:248](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L248) 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) #### Overrides [`BaseModelConfig`](/docs/api/typescript/BaseModelConfig/index.md).[`temperature`](/docs/api/typescript/BaseModelConfig/index.md#temperature) --- ### topP? ```ts optional topP?: number; ``` Defined in: [src/models/bedrock.ts:255](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L255) 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) #### Overrides [`BaseModelConfig`](/docs/api/typescript/BaseModelConfig/index.md).[`topP`](/docs/api/typescript/BaseModelConfig/index.md#topp) --- ### stopSequences? ```ts optional stopSequences?: string[]; ``` Defined in: [src/models/bedrock.ts:260](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L260) Array of sequences that will stop generation when encountered. --- ### cacheConfig? ```ts optional cacheConfig?: CacheConfig; ``` Defined in: [src/models/bedrock.ts:267](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L267) 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) --- ### additionalRequestFields? ```ts optional additionalRequestFields?: JSONValue; ``` Defined in: [src/models/bedrock.ts:272](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L272) Additional fields to include in the Bedrock request. --- ### additionalResponseFieldPaths? ```ts optional additionalResponseFieldPaths?: string[]; ``` Defined in: [src/models/bedrock.ts:277](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L277) Additional response field paths to extract from the Bedrock response. --- ### additionalArgs? ```ts optional additionalArgs?: JSONValue; ``` Defined in: [src/models/bedrock.ts:283](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L283) 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/) --- ### stream? ```ts optional stream?: boolean; ``` Defined in: [src/models/bedrock.ts:293](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L293) 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) --- ### includeToolResultStatus? ```ts optional includeToolResultStatus?: boolean | "auto"; ``` Defined in: [src/models/bedrock.ts:301](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L301) 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) --- ### guardrailConfig? ```ts optional guardrailConfig?: BedrockGuardrailConfig; ``` Defined in: [src/models/bedrock.ts:307](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L307) 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) --- ### useNativeTokenCount? ```ts optional useNativeTokenCount?: boolean; ``` Defined in: [src/models/bedrock.ts:318](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/bedrock.ts#L318) 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 ``` --- ### modelId? ```ts optional modelId?: string; ``` Defined in: [src/models/model.ts:183](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/strands-ts/src/models/model.ts#L183) The model identifier. This typically specifies which model to use from the provider’s catalog. #### Inherited from [`BaseModelConfig`](/docs/api/typescript/BaseModelConfig/index.md).[`modelId`](/docs/api/typescript/BaseModelConfig/index.md#modelid) --- ### contextWindowLimit? ```ts optional contextWindowLimit?: number; ``` Defined in: [src/models/model.ts:216](https://github.com/strands-agents/harness-sdk/blob/3bbfb60ae79b3941305737c1c5ca1e7ef639361f/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 [`BaseModelConfig`](/docs/api/typescript/BaseModelConfig/index.md).[`contextWindowLimit`](/docs/api/typescript/BaseModelConfig/index.md#contextwindowlimit)