Every acronym used in this workshop, with what it stands for and how it shows up here. Each one is also expanded on first use in the chapter where it appears.

Acronym Stands for In this workshop
A2A Agent-to-Agent One agent invoking another agent runtime directly on AgentCore (Module 3)
API Application Programming Interface The interface your code calls AWS and AgentCore through
ARM64 64-bit Arm architecture AgentCore runs Arm64 containers; CodeBuild builds the images on native Arm64 hardware
ARN Amazon Resource Name The unique identifier for an AWS resource (e.g. an agent runtime’s ARN)
AWS Amazon Web Services The cloud provider hosting every resource in the workshop
CLI Command-Line Interface The terminal tools you use, such as the Pulumi CLI
EC2 Elastic Compute Cloud AWS virtual machines — what you’d otherwise run agents on
ECR Elastic Container Registry Stores the Docker images CodeBuild produces for your agents
ECS Elastic Container Service AWS container orchestration — another thing AgentCore saves you from managing
ESC Environments, Secrets, and Configuration Pulumi’s encrypted secrets and config store for your AWS credentials
HTTP HyperText Transfer Protocol The protocol agents and MCP servers speak over
IAM Identity and Access Management AWS roles and policies that control what each agent can do
JSON JavaScript Object Notation The data format for agent payloads and IAM policies
JWT JSON Web Token The bearer token Cognito issues and the AgentCore Gateway validates (Module 2)
LLM Large Language Model The model your agent calls through Amazon Bedrock
MCP Model Context Protocol Open standard for how agents discover and call tools (Module 2)
OIDC OpenID Connect Identity layer the Gateway uses via Cognito’s discovery URL (Module 2)
S3 Simple Storage Service Object storage for source archives and the agent’s result files
SDK Software Development Kit A framework you build with, such as the Strands Agents SDK
SigV4 Signature Version 4 AWS’s request-signing scheme the Gateway uses to call your runtime (Module 2)
TTL Time To Live How long a Memory event lives before it expires (Module 4)
UI User Interface The Pulumi Cloud web console
YAML YAML Ain’t Markup Language Config file format used for buildspecs and Pulumi config