hermes-agent/tui_gateway
kshitijk4poor cbf851ae1d perf(tui): stop slow/dead MCP servers from freezing TUI startup
The 'summoning hermes…' phase blocked on gateway.ready, which ran MCP
tool discovery inline. Any configured-but-unreachable MCP server burned
its full connect-retry backoff (1+2+4s ≈ 7s) before the composer
appeared — startup went from instant to ~7.5s of dead air for anyone
with a down stdio/http server in mcp_servers.

Move discovery into a background daemon thread so gateway.ready fires
immediately; tools register into the shared registry as servers connect,
and the agent isn't built until the first prompt. Measured spawn→ready:
~7500ms → ~115ms (dead twozero_td server in config).

Also drop rich.console + prompt_toolkit off banner.py's import path
(lazy-imported inside cprint/build_welcome_banner). tui_gateway.server
imports banner only to reach the lightweight prefetch_update_check
helper; the eager rich/pt imports added ~45ms before gateway.ready for
no benefit. tui_gateway.server import: ~115ms → ~69ms.
2026-05-30 02:53:37 -07:00
..
__init__.py feat: new tui based on ink 2026-04-02 19:07:53 -05:00
entry.py perf(tui): stop slow/dead MCP servers from freezing TUI startup 2026-05-30 02:53:37 -07:00
event_publisher.py chore: address copilot comments 2026-04-24 12:51:04 -04:00
render.py tui: inherit Python-side rendering via gateway bridge 2026-04-05 18:50:41 -05:00
server.py perf(tui): stop slow/dead MCP servers from freezing TUI startup 2026-05-30 02:53:37 -07:00
slash_worker.py feat: personality 2026-04-08 00:15:15 -04:00
transport.py fix(tui-gateway): harden stdio transport against half-closed pipes + SIGTERM races (#17118) 2026-04-28 17:54:06 -05:00
ws.py fix(async): close unscheduled coroutines in all threadsafe bridges (#26584) 2026-05-15 14:00:01 -07:00