[bot] AWS Bedrock batch inference (CreateModelInvocationJob) is not instrumented at all

BraintrustAWSBedrock.java、AWSBedrockInstrumentationModule.java、BraintrustBedrockInterceptor.java、InstrumentationSemConv.java から始め、続いて BraintrustAWSBedrockTest.java と AWS Bedrock のコントロールプレーンのクライアント API を確認します。指定されたバッチジョブ操作について、リクエストとレスポンスの形式およびライフサイクルを含むカバレッジを追加し、送信、ステータス確認、一覧表示、停止について、対象を絞ったテストまたはカセットで検証します。

Summary

The aws_bedrock_2_30_0 module only ever wraps the Bedrock data-plane runtime client builders (software.amazon.awssdk.services.bedrockruntime.BedrockRuntimeClientBuilder / BedrockRuntimeAsyncClientBuilder), and only tags Converse/ConverseStream operations on that client (tracked separately in #134 for InvokeModel). AWS Bedrock's official batch inference API — submitted through the entirely separate control-plane client software.amazon.awssdk.services.bedrock.BedrockClient (CreateModelInvocationJob / GetModelInvocationJob / ListModelInvocationJobs / StopModelInvocationJob) — has no wrapping mechanism at all. This is a different Maven artifact/class hierarchy (bedrock vs. bedrockruntime) that this module never references, so unlike the Gemini Batches gap (#165, where calls at least reach the wrapper and get mis-tagged), a Bedrock batch inference job call today produces zero span — not even a generic or mis-tagged one.

What is missing

• BraintrustBedrockInterceptor.java line 55: private static final Set<String> INSTRUMENTED_OPERATIONS = Set.of("Converse", "ConverseStream");, enforced at lines 62–66 (beforeExecution returns immediately for any other operation name). This interceptor is only ever attached to a BedrockRuntimeClientBuilder/BedrockRuntimeAsyncClientBuilder in the first place (see next point), so it structurally cannot see batch-inference-job calls regardless of this allowlist.
• BraintrustAWSBedrock.java (lines 23–24, 53–54): both public wrap() overloads are typed to accept only BedrockRuntimeClientBuilder / BedrockRuntimeAsyncClientBuilder. There is no wrap(BedrockClientBuilder) overload, so a manual user has no supported way to instrument the control-plane client that hosts batch inference at all.
• AWSBedrockInstrumentationModule.java (BedrockBuilderAdvice.build(), lines 74–83): the auto-instrumentation instanceof checks are likewise limited to BedrockRuntimeClientBuilder/BedrockRuntimeAsyncClientBuilder. A BedrockClientBuilder (control plane) passing through SdkDefaultClientBuilder.build() falls through both branches untouched.
• InstrumentationSemConv.tagBedrockRequest()/tagBedrockResponse() only understand Converse-shaped JSON (messages, output.message, usage.inputTokens) — even if a batch job call were reached, there's no field extraction for CreateModelInvocationJobRequest/GetModelInvocationJobResponse shapes (jobArn, inputDataConfig/S3 URI, outputDataConfig/S3 URI, status, roleArn).
• No test, cassette, or example anywhere in the repo references CreateModelInvocationJob, GetModelInvocationJob, ModelInvocationJob, or the bedrock (non-bedrockruntime) client package — confirmed via repo-wide search.
• No async submit → poll-status → retrieve-result lifecycle is modeled for this provider, unlike the (also-gapped, but at least structurally reachable) OpenAI (#164), Anthropic (#155), and Google GenAI (#165) batch APIs.

Braintrust docs status: not_found

Fetched https://www.braintrust.dev/docs/integrations/ai-providers/bedrock in full. It documents per-language tracing coverage for Converse/ConverseStream/InvokeModel/InvokeModelWithResponseStream across the TypeScript, Python, Go, and Java SDKs (explicitly noting for Java: "Other Bedrock operations such as InvokeModel and ApplyGuardrail are not traced" — consistent with #134). No mention anywhere on the page, for any language SDK, of batch inference / model invocation jobs / CreateModelInvocationJob. This is a documentation gap across the whole product, not just Java, but the Java SDK itself also has zero code path that could produce a span for this API even if docs existed.

Upstream sources

• AWS Bedrock batch inference user guide: https://docs.aws.amazon.com/bedrock/latest/userguide/batch-inference.html and https://docs.aws.amazon.com/bedrock/latest/userguide/batch-inference-create.html — describes submitting a batch inference job against an S3 input file and retrieving results from S3 once the job completes.
• API reference: https://docs.aws.amazon.com/bedrock/latest/APIReference/API_CreateModelInvocationJob.html (also GetModelInvocationJob, ListModelInvocationJobs, StopModelInvocationJob).
• AWS SDK for Java v2 control-plane client: software.amazon.awssdk.services.bedrock.BedrockClient#createModelInvocationJob — https://docs.aws.amazon.com/java/api/latest/software/amazon/awssdk/services/bedrock/BedrockClient.html and https://docs.aws.amazon.com/java/api/latest/software/amazon/awssdk/services/bedrock/model/CreateModelInvocationJobRequest.html — this is a distinct Maven artifact (software.amazon.awssdk:bedrock) from the already-instrumented software.amazon.awssdk:bedrockruntime.

Local repo files inspected

• braintrust-sdk/instrumentation/aws_bedrock_2_30_0/src/main/java/dev/braintrust/instrumentation/awsbedrock/v2_30_0/BraintrustBedrockInterceptor.java — line 55 (INSTRUMENTED_OPERATIONS), lines 62–66 (allowlist enforcement), imports at lines 31–32 (bedrockruntime.model.ConverseRequest/ConverseStreamRequest only)
• braintrust-sdk/instrumentation/aws_bedrock_2_30_0/src/main/java/dev/braintrust/instrumentation/awsbedrock/v2_30_0/BraintrustAWSBedrock.java — lines 23–24 and 53–54 (wrap() overload signatures, both bedrockruntime builder types only)
• braintrust-sdk/instrumentation/aws_bedrock_2_30_0/src/main/java/dev/braintrust/instrumentation/awsbedrock/v2_30_0/auto/AWSBedrockInstrumentationModule.java — lines 74–83 (BedrockBuilderAdvice.build() instanceof checks limited to bedrockruntime builders)
• braintrust-sdk/src/main/java/dev/braintrust/instrumentation/InstrumentationSemConv.java — tagBedrockRequest()/tagBedrockResponse() handle only Converse-shaped bodies
• braintrust-sdk/instrumentation/aws_bedrock_2_30_0/src/test/java/dev/braintrust/instrumentation/awsbedrock/v2_30_0/BraintrustAWSBedrockTest.java — all tests use ConverseRequest/ConverseStreamRequest; no batch-job test exists
• Repo-wide search for ModelInvocationJob, CreateModelInvocationJob, and the software.amazon.awssdk.services.bedrock. (control-plane) package — zero matches outside this issue
• Existing related/non-duplicate issues reviewed: #134 (Bedrock InvokeModel embeddings — same module, different operation, not batch), #165 (Google GenAI Batches — different provider), #155 (Anthropic Message Batches — different provider), #164 (OpenAI Batch API — different provider)