server

Environment variable prefix used to pass CLI config to the server subprocess.

Build the server base URL.

Generate a langgraph.json config file for langgraph dev.

Poll a LangGraph server health endpoint until it responds.

Print every pending debug-preserved server-log path to stderr, once each.

Deferred out of _stop_process_locked so the interactive TUI can surface the paths after Textual restores the terminal. Call this only from terminal stop sites that run after the terminal is restored or with no TUI active (run_textual_app finally, server_session finally, ServerProcess __aexit__) — never from the hidden in-session teardown or /restart, whose prints would be swallowed by the alternate screen.

Draining is atomic, so the interactive path's overlapping stop() calls (and any other double teardown) still announce each path exactly once.

Manages a langgraph dev server subprocess.

Focuses on subprocess lifecycle (start, stop, restart) and health checking. Env-var management for restarts (e.g. configuration changes requiring a full restart) is handled by _scoped_env_overrides, keeping this class focused on process management.