/**
 * Runtime policy module — single seam for Phase 02 runtime configuration.
 *
 * Provides:
 *  - DEFAULT_RUNTIME_POLICY: hardcoded defaults matching current production
 *  - loadRuntimePolicy: validate and merge workspace-level policy
 *  - getRuntimePolicyForSession: resolve per-session overrides
 *
 * RESEARCH D-16 (built-in-first):
 * OpenCode already provides hook/session surfaces for tool budgets, loop
 * detection, and retry resolution. This policy layer ONLY supplements the
 * missing per-key concurrency and per-session threshold behavior. It does
 * NOT replace or duplicate OpenCode-native enforcement.
 */
import type { ResolvedBudgetPolicy, RuntimePolicy, SessionPolicyOverride } from "./types.js";
export declare const DEFAULT_RUNTIME_POLICY: RuntimePolicy;
/**
 * Load and validate a workspace-level runtime policy.
 *
 * @param workspacePolicy - Optional workspace-level policy. When omitted or
 *   empty, returns DEFAULT_RUNTIME_POLICY.
 * @returns A fully-resolved RuntimePolicy with all fields populated.
 * @throws [Hivemind]-prefixed Error when limits are out of valid range.
 */
export declare function loadRuntimePolicy(workspacePolicy?: Partial<RuntimePolicy>): RuntimePolicy;
/**
 * Resolve the effective runtime policy for a specific session.
 *
 * Per-session overrides take precedence over workspace-level defaults.
 * Both the workspace policy and the session override are validated before
 * being applied — out-of-range values throw [Hivemind] errors.
 *
 * RESEARCH D-16: Session overrides come from trusted continuity/delegation
 * metadata only (not arbitrary tool args). This prevents silent limit
 * escalation from untrusted sources (threat T-02-03).
 *
 * @param workspacePolicy - Workspace-level policy (already validated or default).
 * @param sessionOverride - Optional per-session overrides from delegation metadata.
 * @returns Fully-resolved policy for this session.
 * @throws [Hivemind]-prefixed Error when session override values are invalid.
 */
export declare function getRuntimePolicyForSession(workspacePolicy: RuntimePolicy, sessionOverride?: SessionPolicyOverride): RuntimePolicy;
/**
 * Resolve the effective per-key concurrency policy for a given lane key.
 *
 * Falls back to the global limit when no per-key override exists.
 */
export declare function resolveConcurrencyForKey(policy: RuntimePolicy, key: string): {
    limit: number;
    acquireTimeoutMs?: number;
};
/**
 * Resolve the effective budget policy for a session.
 *
 * This is the budget analogue of resolveConcurrencyForKey — it returns
 * the full budget policy for use by the tool guard hooks.
 */
export declare function resolveBudgetForSession(policy: RuntimePolicy): ResolvedBudgetPolicy;
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