Crate acp_utils 

aether-acp-utils

Utilities for the Agent Client Protocol (ACP), handling notifications, elicitation, and protocol extensions between agents and their host UIs.

Table of Contents

• Protocol compatibility
• Key Types
• Feature Flags
• License

Key Types

• elicitation – Typed conversion between MCP elicitation and native ACP elicitation/create messages
• ContextUsageParams – Token usage tracking notifications
• McpNotification / McpRequest – MCP message tunneling over ACP
• TokioAcpAgent – Tokio-native ACP transport

Feature Flags

Feature	Description	Default
client	ACP client (for UIs connecting to agents)	yes
server	ACP server (for agents accepting connections)	yes

License

MIT

Modules

client

config_meta

config_option_id

content

elicitation

notifications

Typed wire-format types for Aether’s custom ACP extension requests and notifications.

server

settings

testing

Duplex-backed test harness for ACP connections.

Constants

AETHER_TOOL_NAME_META_KEY

Meta key under which Aether agents publish the machine-readable tool name on an ACP ToolCall._meta, so consumers can recover the original tool name from the humanized title.