---
title: stack kb agent-builder post-agent-builder-a2a-agentid cli command
description: Send A2A task Behaviour flags: --dry-run — validate all inputs and exit without performing any action 
url: https://www.elastic.co/elastic/docs-builder/docs/4118/reference/elastic-cli/cli/stack/kb/agent-builder/post-agent-builder-a2a-agentid
applies_to:
  - Elastic Cloud Serverless: Preview
  - Elastic Stack: Preview
---

# stack kb agent-builder post-agent-builder-a2a-agentid cli command
<cli-modifiers>
</cli-modifiers>

```bash
elastic stack kb agent-builder post-agent-builder-a2a-agentid \
  --agent-id <agent-id> \
  [options]
```

Send A2A task
**Behaviour flags:**
`--dry-run` — validate all inputs and exit without performing any action

## Options

<definitions>
  <definition term="--agent-id string required">
    The unique identifier of the agent to send the A2A task to.
  </definition>
  <definition term="--body string">
  </definition>
  <definition term="--input-file string">
    path to a JSON file to use as command input
  </definition>
  <definition term="--dry-run">
    validate all inputs and exit without performing any action (preview changes without applying them)
  </definition>
</definitions>


## Global Options

<definitions>
  <definition term="--json">
    output as JSON
  </definition>
</definitions>