vtcode-acp 0.100.3

ACP bridge and client implementation for VT Code
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//! ACP (Agent Communication Protocol) support for VT Code.
//!
//! This crate exposes both the ACP client library and the VT Code Zed bridge.
//! Downstream crates should treat this as the canonical ACP entrypoint.

pub mod capabilities;
pub mod client;
pub mod client_v2;
pub mod discovery;
pub mod error;
pub mod jsonrpc;
pub mod messages;
pub mod permissions;
pub mod reports;
pub mod session;
pub mod tooling;
mod tooling_provider;
pub mod transport;
pub mod workspace;
mod zed;

pub use capabilities::{
    AgentCapabilities, AgentFeatures, AgentInfo as AgentInfoV2, AuthCredentials, AuthMethod,
    AuthRequirements, AuthenticateParams, AuthenticateResult, ClientCapabilities, ClientInfo,
    FilesystemCapabilities, InitializeParams, InitializeResult, PROTOCOL_VERSION,
    SUPPORTED_VERSIONS, TerminalCapabilities, ToolCapability, UiCapabilities,
};
pub use client_v2::{AcpClientV2, AcpClientV2Builder};
pub use discovery::{AgentInfo, AgentRegistry};
pub use error::{AcpError, AcpResult};
pub use jsonrpc::{JSONRPC_VERSION, JsonRpcError, JsonRpcId, JsonRpcRequest, JsonRpcResponse};
pub use session::{
    AcpSession, ConversationTurn, PermissionOption, PromptContent, RequestPermissionParams,
    RequestPermissionResult, SessionCancelParams, SessionLoadParams, SessionLoadResult,
    SessionNewParams, SessionNewResult, SessionPromptParams, SessionPromptResult, SessionState,
    SessionUpdate, SessionUpdateNotification, ToolCallRecord, TurnStatus,
};
pub use transport::{StdioTransport, StdioTransportOptions};
pub use zed::{StandardAcpAdapter, ZedAcpAdapter};

#[deprecated(since = "0.60.0", note = "Use AcpClientV2 for ACP protocol compliance")]
pub use client::{AcpClient, AcpClientBuilder};
#[deprecated(since = "0.60.0", note = "Use jsonrpc module types instead")]
pub use messages::{AcpMessage, AcpRequest, AcpResponse};

use agent_client_protocol::AgentSideConnection;
use std::sync::{Arc, OnceLock};

static ACP_CONNECTION: OnceLock<Arc<AgentSideConnection>> = OnceLock::new();

/// Register the global ACP connection from the host protocol.
///
/// Returns `Err` with the provided connection if one has already been
/// registered. Callers may drop the returned connection or reuse it as needed.
pub fn register_acp_connection(
    connection: Arc<AgentSideConnection>,
) -> Result<(), Arc<AgentSideConnection>> {
    ACP_CONNECTION.set(connection)
}

/// Retrieve the registered ACP connection, if available.
pub fn acp_connection() -> Option<Arc<AgentSideConnection>> {
    ACP_CONNECTION.get().cloned()
}