FUNDING · COMPANIES · #488
Amazon Bedrock AgentCore introduces system-prompt optimizer to automate agent tuning
Amazon’s Bedrock AgentCore now includes a system prompt optimizer that analyzes production agent traces and a reward signal to propose and validate configuration edits. The technical post describes a reflector-based workflow (Single Agent Reflector and an experimental open-source Sub‑Agent Reflector), integration with AgentCore Observability, offline batch evaluation and online A/B testing, guardrails for promotion, and evaluation results on GEPA and MIPROv2 benchmarks.
KEY POINTS
- Amazon’s Bedrock AgentCore now includes a system prompt optimizer that analyzes production agent traces and a reward signal to propose and validate configuration edits.
- The technical post describes a reflector-based workflow (Single Agent Reflector and an experimental open-source Sub‑Agent Reflector), integration with AgentCore Observability, offline batch evaluation and online A/B testing, guardrails for promotion, and evaluation results on GEPA and MIPROv2 benchmarks.
- Automating prompt and configuration tuning from production traces can speed up improving agent quality and make iterative testing (including A/B on live traffic) more systematic while retaining reviewable guardrails.
WHY IT MATTERS
Automating prompt and configuration tuning from production traces can speed up improving agent quality and make iterative testing (including A/B on live traffic) more systematic while retaining reviewable guardrails.
SOURCES & TIMELINE
1In a previous launch post , we introduced AgentCore optimization, a capability of Amazon Bedrock AgentCore that can help you improve the quality of your agents. Improving a low-scoring agent has traditionally been a manual process. You review long traces to find where the agent goes wrong, tune individual components such as prompts, tool descriptions, and skills, and rerun evaluations to check for improvement. With …
Agents are no longer experiments. They process claims, write and review code, coordinate across systems, and run for hours without supervision. As agents take on more complex, longer-running work, the infrastructure underneath them must evolve just as fast. We built Amazon Bedrock AgentCore to help developers build, connect, and optimize agents securely at scale. AgentCore runtime, a capability of Amazon Bedrock Age…