---
term: "A2A task"
category: "Agent protocols"
url: https://agenticopenfinance.com/glossary/a2a-task
source: AgenticOpenFinance glossary
---

# A2A task

> The fundamental unit of work in A2A, with a unique ID and a defined lifecycle of states.

In the Agent2Agent protocol, a task is the fundamental unit of work that a remote agent manages, identified by a unique ID and progressing through a defined lifecycle of states. A task can pause to ask for more input, and it produces artifacts as its outputs. Because each task has an identity and a history, it is a natural anchor for linking an agent's work to the mandate that authorised it and to the evidence it produced.

Related terms: [Agent2Agent protocol (A2A)](https://agenticopenfinance.com/glossary/agent2agent-protocol.md), [Agent card](https://agenticopenfinance.com/glossary/agent-card.md), [Audit trail](https://agenticopenfinance.com/glossary/audit-trail.md), [Multi-agent system](https://agenticopenfinance.com/glossary/multi-agent-system.md)