Wire protocol types for the Agent Host Protocol (AHP).

This crate provides Rust counterparts for the TypeScript source-of-truth types in types/. All types are Serialize + Deserialize and use the same JSON field names as the protocol.

Modules

• [state] — RootState, SessionState, tool call lifecycle, terminal state
• [actions] — StateAction discriminated union and ActionEnvelope
• [commands] — command params and results
• [notifications] — protocol notifications
• [messages] — JSON-RPC wire envelopes
• [errors] — AHP and JSON-RPC error codes
• [version] — protocol version constants

Example

use ahp_types::actions::{ActionEnvelope, StateAction};
use ahp_types::state::SessionStatus;

let json = r#"{
  "action": { "type": "session/titleChanged", "session": "copilot:/s1", "title": "Hi" },
  "serverSeq": 7,
  "origin": null
}"#;
let env: ActionEnvelope = serde_json::from_str(json).unwrap();
assert_eq!(env.server_seq, 7);
match env.action {
    StateAction::SessionTitleChanged(a) => assert_eq!(a.title, "Hi"),
    _ => panic!("unexpected variant"),
}