/**
 * Static adjacent tooling matrix by stack signal (#295).
 *
 * Maps demand-profile stack/language signals to high-confidence adjacent package
 * names that a workspace should probably be using but may not have declared yet.
 * These are fetched via registry metadata when the matching signal is present,
 * and tagged as `discoveryMethod: "registry-adjacent-search"` in the catalog.
 *
 * Only include packages with near-universal adoption in their ecosystem.
 * Controversial or niche choices do not belong here.
 *
 * ## Maintenance
 *
 * This matrix is static and has no automated freshness validation. Packages
 * can be renamed, deprecated, or superseded. To audit:
 *
 * ```bash
 * # Check a package still resolves in its registry
 * npm view <name> name 2>/dev/null && echo "OK" || echo "STALE"
 * cargo search <name> --limit 1 2>/dev/null | head -1
 * ```
 *
 * Scheduled audit cadence: every minor release. Stale entries should be
 * removed — a missing adjacent suggestion is less harmful than a wrong one.
 */
import type { PackageRegistryKind } from "./package-candidates.js";
/** Adjacent npm packages keyed by demand signal keyword. */
export declare const ADJACENT_NPM_BY_SIGNAL: Record<string, string[]>;
/** Adjacent PyPI packages keyed by demand signal keyword. */
export declare const ADJACENT_PYPI_BY_SIGNAL: Record<string, string[]>;
/** Adjacent crates.io crates keyed by demand signal keyword. */
export declare const ADJACENT_CARGO_BY_SIGNAL: Record<string, string[]>;
/** Adjacent NuGet packages keyed by demand signal keyword. */
export declare const ADJACENT_NUGET_BY_SIGNAL: Record<string, string[]>;
/** Adjacent Maven packages keyed by demand signal keyword (groupId:artifactId). */
export declare const ADJACENT_MAVEN_BY_SIGNAL: Record<string, string[]>;
/** Adjacent Packagist packages keyed by demand signal keyword. */
export declare const ADJACENT_PACKAGIST_BY_SIGNAL: Record<string, string[]>;
/** Adjacent RubyGems packages keyed by demand signal keyword. */
export declare const ADJACENT_GEM_BY_SIGNAL: Record<string, string[]>;
/**
 * Returns static adjacent package names for a given registry kind and a set
 * of demand signal tokens.
 *
 * Tokens are matched case-insensitively against the signal map keys.
 */
export declare function getAdjacentPackagesForSignals(registryKind: PackageRegistryKind, signalTokens: Iterable<string>): string[];