# Amazon — Evaluate skill-equipped agents with Strands Evals and Amazon Bedrock AgentCore

- Company: Amazon (amazon.com)
- Announced: 2026-09-22T17:18:13+00:00
- Category: developer-tool-release
- Coverage: not counted
- Announcement: yes
- Group: announcements
- Source: https://aws.amazon.com/blogs/machine-learning/evaluate-skill-equipped-agents-with-strands-evals-and-amazon-bedrock-agentcore/
- Record: https://forck.live/items/13102-evaluate-skill-equipped-agents-with-strands-evals-and-amazon-bedrock-agentcore
- Subject: Bedrock / Nova

Amazon Bedrock AgentCore Evaluations and Strands Evals SDK add skill-focused evaluators to measure agent behavior with modular skills. Skill Selection Accuracy determines whether invoked skills are appropriate for tasks, Skill Instruction Following rates how fully agents follow skill instructions on a five-level scale, and Skill Invoked provides deterministic checks for skill loading.

## Evidence

Verbatim from https://aws.amazon.com/blogs/machine-learning/evaluate-skill-equipped-agents-with-strands-evals-and-amazon-bedrock-agentcore/:

> To make these failures measurable, Strands Evals SDK and Amazon Bedrock AgentCore Evaluations, a capability of Amazon Bedrock AgentCore, add skill-focused evaluators: Skill Selection Accuracy determines whether each invoked skill was an appropriate choice for the task. It returns a binary result for each invoked skill. Skill Instruction Following determines how fully the agent followed an invoked skill's instructions. It returns a five-level rating grounded in evidence for each prescribed step.

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