[bot] Missing instrumentation for AWS Bedrock AgentCore Runtime Java SDK

[braintrust-bot]

Summary

The Braintrust Java SDK instruments software.amazon.awssdk:bedrockruntime (direct model invocation) and has an open gap issue (#113) for software.amazon.awssdk:bedrockagentruntime (the older Bedrock Agents/Knowledge-Bases feature). Neither covers software.amazon.awssdk:bedrockagentcore — a distinct, separately versioned AWS SDK v2 module for Amazon Bedrock AgentCore, AWS's newer, framework-agnostic managed runtime for deploying and invoking any agent (not limited to Bedrock-authored agents). This module is completely uninstrumented and is not the same client hierarchy as either existing/tracked Bedrock module.

What is missing

The software.amazon.awssdk:bedrockagentcore module provides these execution-oriented surfaces, none of which are instrumented:

API method	Client	Description
invokeAgentRuntime()	BedrockAgentCoreClient / BedrockAgentCoreAsyncClient	Sends a request to an agent (built with any framework — LangGraph, CrewAI, Strands, custom code, etc.) hosted on AgentCore Runtime and streams back its response
Session-scoped invocation	BedrockAgentCoreClient	Maintains conversation/session state across multiple invokeAgentRuntime calls via a runtime session identifier
AgentCore Memory / Gateway / Code Interpreter / Browser data-plane calls	BedrockAgentCoreClient	Additional AgentCore execution primitives (short/long-term memory retrieval, tool gateway invocation, sandboxed code execution) exposed by the same client

There is no reference to bedrockagentcore, BedrockAgentCore, or InvokeAgentRuntime anywhere in this repository — no instrumentation module, wrapper, test, example, or dependency.

Why this is not covered by the existing Bedrock work

• aws_bedrock_2_30_0 (instrumented) targets BedrockRuntimeClientBuilder/BedrockRuntimeAsyncClientBuilder only (model invocation via Converse/InvokeModel).
• Issue [bot] Missing instrumentation for AWS Bedrock Agent Runtime Java SDK #113 tracks bedrockagentruntime (InvokeAgent, RetrieveAndGenerate, Retrieve) — the older Bedrock Agents/Knowledge-Bases feature tied to agents authored specifically in Bedrock's agent builder.
• bedrockagentcore is a separate, newer AWS service (Bedrock AgentCore, generally available in 2025) with its own Maven artifact, its own client class (BedrockAgentCoreClient), and its own API operation (InvokeAgentRuntime) for hosting/invoking agents built with any framework. It is not a version bump or superset of bedrockagentruntime — both remain independently published AWS services/SDKs today.

Braintrust docs status

• AWS Bedrock (bedrockruntime) is listed as a supported provider at https://www.braintrust.dev/docs/instrument/trace-llm-calls#java: supported (for model invocation only)
• Bedrock AgentCore is not mentioned anywhere in Braintrust docs: not_found

Upstream sources

• InvokeAgentRuntime API reference: https://docs.aws.amazon.com/bedrock-agentcore/latest/APIReference/API_InvokeAgentRuntime.html
• Java SDK client reference: https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/bedrockagentcore/BedrockAgentCoreClient.html
• AgentCore Runtime invoke guide: https://docs.aws.amazon.com/bedrock-agentcore/latest/devguide/runtime-invoke-agent.html
• Maven Central: https://central.sonatype.com/artifact/software.amazon.awssdk/bedrockagentcore — actively released alongside the rest of the AWS SDK v2 suite (v2.47.5)

Local files inspected

• braintrust-sdk/instrumentation/aws_bedrock_2_30_0/build.gradle — depends on software.amazon.awssdk:bedrockruntime only
• braintrust-sdk/instrumentation/aws_bedrock_2_30_0/src/main/java/dev/braintrust/instrumentation/awsbedrock/v2_30_0/auto/AWSBedrockInstrumentationModule.java — instanceof checks limit instrumentation to BedrockRuntimeClientBuilder/BedrockRuntimeAsyncClientBuilder
• settings.gradle (lines 28–33) — lists all instrumentation modules; no AgentCore module present
• Full-repo grep for bedrockagentcore, BedrockAgentCore, InvokeAgentRuntime — zero matches