Module bridge 

The bridge use case.

Five modules, each one part of a bridge that would otherwise be one oversized file: the lossless translation of ToolResult across revisions, the downstream handshake a bridge owes the client in front of it, the forwarding path itself, the loop that drives it, and the out-of-band frames neither side asked for.

Re-exports

pub use crate::domain::bridge::a2a_mcp::CrossProtocolReport;

pub use crate::domain::bridge::a2a_mcp::Direction;

pub use crate::domain::bridge::a2a_mcp::Protocol;

pub use crate::domain::bridge::a2a_mcp::Step;

pub use crate::domain::bridge::a2a_mcp::StepKind;

pub use crate::domain::bridge::a2a_mcp::a2a_message_to_mcp_content;

pub use crate::domain::bridge::a2a_mcp::a2a_message_to_mcp_text;

pub use crate::domain::bridge::a2a_mcp::a2a_skill_to_mcp_tool;

pub use crate::domain::bridge::a2a_mcp::mcp_content_to_a2a_part;

Structs

A2aMcpCodec

The codec that turns SendMessage ↔ tools/call into the bridge’s canonical envelopes.

Bridge

Carries envelopes to upstream under one agreement and brings the answers back.

BridgeLoop

Carries frames from a downstream peer, through a Bridge, back to it.

CrossBridgePeer

A bridge peer that runs every request and reply through a cross-protocol codec before reaching the inner peer.

Downstream

A settled downstream leg: what to answer, and what the bridge may forward.

DownstreamConfig

What this bridge presents to a client, before any client has connected.

Forwarded

What one forward produced.

Identity

What this bridge calls itself in serverInfo.

LoopReport

What one pass of the loop moved.

OpenedUpstream

One upstream connection, and the leg describing it.

RequestCodecReport

What translating a request and its reply produced.

Translated

What translating a reply produced.

Translator

Turns a reply into one the downstream client can read.

TransportPeer

Forwards envelopes through a ClientTransport.

Unsolicited

A queue of frames the peer pushed while some other call was in flight.

Wiring

The two peers a loop forwards between, and the policy it degrades under.

Enums

BridgeClientError

Why one client’s bridge stopped.

BridgeError

Why a bridge could not carry an envelope.

CrossProtocolError

What a cross-protocol codec can refuse.

DownstreamError

Why a downstream handshake could not be settled.

LoopError

Why the loop stopped.

ProtocolSide

The two sides of a cross-protocol translation, recorded for the operator.

RequestCodecStep

One named step in a request/reply translation.

UpstreamError

Why an upstream could not be opened.

Traits

BridgePeer

One side of the bridge, at envelope granularity.

CrossProtocolCodec

A codec that translates request and reply envelopes between the downstream leg’s protocol and the upstream’s protocol.

ToolResultCodec

Reads and writes a ToolResult in one revision’s wire encoding.

Upstream

Opens upstreams, one per downstream client.

Functions

negotiate_downstream

Settles the downstream leg of a handshake.

run_client

Runs one client from end to end against its own upstream.

Type Aliases

SendFuture

The future BridgePeer::send returns.