@dollhousemcp/mcp-server/dist/telemetry/StartupTimer.d.ts

DollhouseMCP - A Model Context Protocol (MCP) server that enables dynamic AI persona management from markdown files, allowing Claude and other compatible AI assistants to activate and switch between different behavioral personas.

/**
 * StartupTimer — Lightweight startup phase timing instrumentation.
 *
 * Tracks per-phase durations during server initialization, split into
 * critical (pre-connect) and deferred (post-connect) categories.
 *
 * Registered as a DI singleton so BuildInfoService can expose timings
 * via `get_build_info`.
 *
 * Issue #706: MCP Startup Race Hardening
 */
export interface PhaseEntry {
    name: string;
    critical: boolean;
    startMs: number;
    endMs: number | null;
    durationMs: number | null;
}
export interface StartupReport {
    phases: Array<{
        name: string;
        critical: boolean;
        durationMs: number;
    }>;
    criticalPathMs: number;
    deferredMs: number;
    totalMs: number;
    connectAtMs: number | null;
}
export declare class StartupTimer {
    private phases;
    private originMs;
    private connectAtMs;
    constructor();
    /**
     * Begin timing a named phase.
     * @param name   Unique phase identifier (e.g. "config_manager")
     * @param critical  true = pre-connect critical path, false = deferred
     */
    startPhase(name: string, critical: boolean): void;
    /**
     * End a previously started phase. Idempotent — second call is a no-op.
     */
    endPhase(name: string): void;
    /**
     * Record the instant MCP `server.connect()` completes.
     */
    markConnect(): void;
    /**
     * Produce the final report. Un-ended phases are auto-closed.
     */
    getReport(): StartupReport;
}
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