import type { CLIOptions } from "../cli.js";
import type { MCPServerConfiguration } from "../config/models.js";
import type { TransportType } from "../mcp/transports/types.js";
/**
 * Wire shape of the connection-type label on telemetry events. The internal
 * schema discriminator uses `"direct"` and `"oauth"`; the telemetry label
 * remaps the latter to `"ccloud-oauth"` because today's OAuth arm is
 * specifically Confluent Cloud OAuth (PKCE against CCloud Auth0). If a
 * non-CCloud OAuth arm ever lands, {@link buildConfigTelemetry}'s mapping
 * needs to grow.
 */
export type ConnectionTelemetryType = "direct" | "ccloud-oauth";
/**
 * Result of {@link buildConfigTelemetry}. Three orthogonal dimensions captured
 * once at server start and emitted as the payload of `SERVER_START`. They are
 * boot-time invariants, so they don't ride TOOL_CALL events — warehouse joins
 * on `serverSessionId` recover the link when slicing is needed. See #264.
 */
export interface ConfigTelemetry {
    /** Which branch of `main()` built the `MCPServerConfiguration`. */
    configSource: "yaml" | "env-vars";
    /**
     * Sorted list of active MCP serving listeners. Inputs are already unique by
     * construction (Zod rejects duplicates on the YAML path; `parseTransportList`
     * dedupes on the CLI path), so this helper does not enforce uniqueness.
     */
    transports: TransportType[];
    /**
     * Sorted list of each declared connection's wire type. Length equals the
     * connection count; duplicates reflect multiple connections of the same
     * type (relevant once multi-connection lands — today always length 1).
     */
    connectionTypes: ConnectionTelemetryType[];
}
/**
 * Derive the {@link ConfigTelemetry} bundle from the inputs already in scope
 * at the end of `main()`'s bootstrap (resolved CLI options, validated
 * `MCPServerConfiguration`, and the resolved list of active transports).
 */
export declare function buildConfigTelemetry(cliOptions: CLIOptions, mcpConfig: MCPServerConfiguration, transports: readonly TransportType[]): ConfigTelemetry;
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