> ## Documentation Index
> Fetch the complete documentation index at: https://docs.hiroshios.xyz/llms.txt
> Use this file to discover all available pages before exploring further.

# Agent Client Protocol (ACP)

> Stdio JSON-RPC 2.0 interface.

Hiroshi supports the standard **Agent Client Protocol (ACP)** over standard input/output (`stdio`) channels, enabling direct integrations with local developer IDE setups.

### 🔌 1. JSON-RPC 2.0 Connection Lifecycle

1. **`initialize`**: Exchanges capabilities and sets the protocol version boundaries (e.g. `2.0`).
2. **`session/new`**: Establishes a new, isolated conversation session context.
3. **`session/load`**: Replays existing memory history databases.
4. **`session/prompt`**: Sends prompts and streams back chunk tokens.

### 🔗 2. Channel Binding Commands

* `/acp_bind <id>`: Manually binds a messaging gateway (Telegram, Discord, Slack) to an active IDE thread.
* `/cas_resume`: Reconnects to the last bound IDE session.