A2 Framework & SDK Overview
The development foundation for building AI agents, with the structure, tools, and patterns needed to create single-agent and multi-agent systems.
Build agents from reusable foundations. Ship them as systems.
A2 is the platform layer for creating AI agents with roles, tools, memory, workflow logic, SDK support, and deployment-ready structure.
01 framework02 SDK03 ecosystem
Data connectorsModel adaptersMemory & stateTools & APIs
A2Framework / SDK
Bring in structured records, documents, events, and private system context.
Single agentsMulti-agent systemsWorkflowsDeployment
Choose a build path
Start with an agent, a team of agents, or a workflow.
Role-first
Single agent
Define one reliable agent with a narrow role, approved tools, memory rules, and deployment configuration.
1 role4 core parts1 deployable unit
Why A2 Exists
Building AI agents from scratch is complex. A2 reduces this complexity with reusable building blocks for workflows, memory, tools, models, data access, and deployment.
Agent Building Blocks
A2 gives each agent the core components needed to perform a role: instructions, models, tools, memory, workflows, data access, metadata, and task definitions.
1. Instructions & Role
Each agent is defined by a purpose, operating rules, and behaviors expected for a specific task.
2. Models, Tools & Memory
Agents connect to models, call tools, and retain useful context or state to solve problems effectively.
3. Workflows & Data Access
Agents follow steps, access databases or APIs, and participate in broader execution flows.
4. Metadata & Tasks
Capabilities, configuration, and task definitions make agents reusable, searchable, and easier to orchestrate.
Coordinate agents across a real execution path.
A2 supports ordered stages, delegation, message exchange, and repeatable handoffs from input data to final output.
Step-Based Execution
Agents follow ordered stages, branching logic, and decision points to complete complex work.
Delegation & Collaboration
One agent can assign subtasks to another, pass context forward, and coordinate specialized skills.
Example Flow
A data agent gathers information, an analysis agent interprets it, and a report agent prepares the output.
Input Data
Collector Agent
Analysis Agent
Report Agent
Final Output
Stage 1Input Data
Connect source systems, files, events, and user context before a run begins.
A practical layer for building, testing, and registering agents.
The SDK gives teams interfaces, examples, deployment tooling, and packaging patterns so A2-built agents can connect into the wider A3 marketplace.
Libraries & APIs
Developers get ready-to-use interfaces for building agents, connecting models, and invoking tools.
Examples & Templates
Starter patterns and sample implementations make it easier to prototype and learn by doing.
Testing & Deployment
The SDK helps teams move from local development to deployment with confidence and repeatability.
Connect to A3
A2-built agents can be described, packaged, registered, discovered, tasked, and monetized through the wider ecosystem.