11 Go integration tests that start an in-process server with in-memory SQLite, register agents with API keys, and make real JSON-RPC 2.0 calls to /mcp. Tests cover: direct messages, channels, search, threads, agent discovery, inbox filters, claim/mark-done, tool listing, auth enforcement, private channels, and read-state tracking. Run with: make test-e2e Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>