/**
 * One answer to "will this tool actually run right now?".
 *
 * Two gates decide that, and neither may live where only `wrap()` in
 * index.ts can see them: the demo gate (a metric-requiring tool called
 * while the MCP is attached read-only to the public demo dataset) and the
 * mode gate (a tool the boot-time mode-detect did not register). Anything
 * that ROUTES a user to a tool — log10x_start's action_menu, a remediation
 * `actions[]` — had no way to ask, so it guessed, and the guesses drifted.
 *
 * The drift was measurable. On a keyless boot the banner says "attaching to
 * the public demo dataset", log10x_baseline returns real numbers off that
 * same dataset, and log10x_start emitted action_menu item `investigate_spike`
 * with `applicable: true` routing to log10x_top_patterns — which then refused
 * with `not_configured (metrics_backend)`. The menu offered a door the gate
 * was holding shut.
 *
 * So the gates move here and both callers read the same function. The gate
 * behaviour is unchanged: this module is where it is asked, not a new policy.
 */
import { type ModeResolution } from './mode-detect.js';
import type { Environments } from './environments.js';
/**
 * Tools that query the metrics backend (top_patterns, whats_changing,
 * etc.). When the MCP is in pure-demo mode (no user configuration,
 * silently landed on the demo backend), these tools short-circuit
 * with a structured `not_configured` response instead of returning
 * demo data the user didn't ask for. We surface the conversation
 * starter without breaking the demo-mode walkthrough; the silent-demo
 * path will be removed in a later release.
 *
 * Tools NOT in this set bypass the gate: configure_env (the
 * onboarding tool itself), doctor (status reporting works in any
 * mode), local-only tools (resolve_batch, extract_templates,
 * dependency_check pasted input), signin_* (log10x account
 * management), discover_env (k8s discovery), poc_from_* (pre-config
 * sample reports).
 */
export declare const METRIC_REQUIRING_TOOLS: ReadonlySet<string>;
/**
 * When set, the MCP is an intentional read-only demo playground: the metric
 * tools serve the public demo data instead of the not_configured onboarding
 * nag. isDemoMode stays true, so the demo banner still renders — we just stop
 * nagging. Set by the hosted deployment.
 *
 * Read per call rather than captured at import: the hosted deployment sets it
 * before boot, but tests flip it between cases and a module-load snapshot
 * would freeze the first value they happened to load under.
 */
export declare function demoPlaygroundEnabled(): boolean;
/**
 * The demo gate. True when this tool will short-circuit with the
 * `not_configured` envelope instead of querying: a metric-requiring tool,
 * pure-demo state (nothing configured, silently landed on the demo backend),
 * and not an intentional playground.
 *
 * `demoFallbackReason` being set is a DIFFERENT state — the user tried to
 * configure and their credentials failed — which gets its own loud banner and
 * does not take this path.
 */
export declare function isDemoGated(toolName: string, envs: Environments | undefined): boolean;
export declare function recordEnvsProvider(provider: () => Environments | undefined): void;
export declare function recordBootMode(mode: ModeResolution | undefined): void;
export declare function peekBootMode(): ModeResolution | undefined;
/** True when the boot-time mode-detect did not register this tool. */
export declare function isOutOfMode(toolName: string): boolean;
/**
 * Why calling `toolName` right now would not do the job, or null when it
 * would. The string is user-facing: it goes straight into an action_menu
 * item's `gated_reason`, so it names a tool that IS callable in this state
 * rather than the one the gate just refused.
 *
 * Argument validation is deliberately out of scope. A tool that needs a
 * `service` or a `from` timestamp is not refusing the user — the agent
 * supplies those from the conversation.
 */
export declare function toolUnavailableReason(toolName: string, envs?: Environments | undefined): string | null;