@adapt-toolkit/a2adapt

@adapt-toolkit/a2adapt

Agent-agnostic MCP server for a2adapt — a native ADAPT node exposing secure agent-to-agent messaging tools. It is platform-neutral (no Claude Code / Codex / Cursor specifics); per-platform plugins depend on this package and run its proxy to reach the daemon.

The server is the node: on startup it boots a single ADAPT packet (a MUFL messenger), restores prior state from the state dir, connects to the broker, and exposes the messaging tools — each a thin wrapper over one MUFL user transaction:

• generate_invite — invite to share out-of-band (optionally named)
• add_contact — add a contact from an invite blob (TOFU)
• list_contacts
• send_message — end-to-end encrypted; optional reply_to_wire_id (+ reply_to_sentence) to reply to a specific message
• get_messages — return unread messages (bodies, each with its wire_id + any reply_to) + mark read; delivered exactly once
• mark_processed / defer_messages — remove handled messages, or re-queue read ones for another session
• list_incoming_messages — full inbox with ids + status (read-only)

Configuration

Daemon lifecycle

This package is the single owner of the daemon lifecycle. a2adapt-mcp start runs one long-lived HTTP daemon per host (default port 3030) that hosts every identity's packet, the broker socket, and file locks — a shared singleton that cannot be run per session. Each session instead runs a thin a2adapt-mcp proxy (stdio ⇄ the daemon's HTTP endpoint), which auto-starts the daemon if it is down. Platform plugins ship only the proxy invocation; they never own or restart the daemon.

On connect, the proxy runs a compatibility handshake against the daemon's /state-dir report ({ version, compat }). compat is the wire-contract version (src/protocol.ts) — distinct from the package version, bumped only on breaking proxydaemon changes. Matching compat proceeds; a differing package version warns (stderr); an incompatible compat refuses with guidance to run a2adapt-mcp stop. The proxy never kills the shared daemon itself, since it may be hosting other sessions' identities.

Build

npm run build        # esbuild → minified dist/{index,cli}.js + dist/mufl_code/*.muflo
npm run build:dev    # readable build (unminified, intact stack traces)
npm run typecheck
npm run dev          # run the daemon under tsx

See the repo README for install and quickstart.