import { type Module } from "./modules.js";
/**
 * Parses and validates the `MODYO_MCP_MODULES` env var into the set of active
 * modules.
 *
 * Rules (see issue #123):
 *  - Absent or empty  → all modules active (backwards-compatible default).
 *  - Comma-separated list; surrounding whitespace tolerated.
 *  - Duplicates ignored.
 *  - Case-sensitive: only lowercase module names are valid.
 *  - Any invalid value → fail-loud: throws before catalogs initialize, so a
 *    typo in mcp.json surfaces at startup rather than as a silently reduced
 *    catalog.
 *
 * The returned list is always in canonical MODULES order, regardless of the
 * order the operator listed them.
 */
export declare function parseActiveModules(raw?: string | undefined): Module[];
/**
 * True when the active set is a strict subset of all modules — i.e. some
 * module was filtered out and the operator should see a startup summary.
 */
export declare function isModuleFilteringActive(active: readonly Module[]): boolean;
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