/**
 * Install manifest for `sklx agent install` / `uninstall` (SMI-5456 Wave 1
 * Step 5).
 *
 * `sklx agent uninstall` must reverse EXACTLY what install wrote — per-
 * changeset file identity, not a re-derivation from the current pack
 * generator (which could have changed between install and uninstall, e.g.
 * across a version bump). The manifest is the durable record of every path
 * the installer created or modified, plus a backup reference for anything it
 * modified (so a foreign file's pre-existing content is restorable) or `null`
 * for anything it created outright (so uninstall deletes rather than
 * restores).
 *
 * Location: `~/.skillsmith/agent-install/manifest.json` — a sibling
 * directory to `~/.skillsmith/journal` (Step 3) and `~/.skillsmith/agent-markers`
 * (Step 1), following the same `getConfigDir()`-rooted, env-override-for-
 * tests convention as both.
 *
 * @module @skillsmith/core/install/agent-manifest
 */
/** Env var overriding the manifest directory (test isolation — mirrors SKILLSMITH_JOURNAL_DIR). */
export declare const AGENT_INSTALL_DIR_ENV_VAR = "SKILLSMITH_AGENT_INSTALL_DIR";
export declare const AGENT_MANIFEST_SCHEMA_VERSION = 1;
export type AgentManifestEntryKind = 'skill' | 'shim' | 'hook-script' | 'mcp-config' | 'hook-config';
/**
 * One path the installer touched. `backupPath` is set only when a
 * PRE-EXISTING file was modified (config-file merges); it is `null` for
 * anything the installer created fresh (skill pack copies, shim files, hook
 * scripts) since there is nothing meaningful to restore — uninstall deletes.
 */
export interface AgentManifestEntry {
    path: string;
    kind: AgentManifestEntryKind;
    /** Harness this entry belongs to, or null for the harness-neutral SKILL.md pack. */
    harness: string | null;
    backupPath: string | null;
    /** True when the installer set the executable bit (hook scripts). */
    executable: boolean;
}
export interface AgentInstallManifest {
    schemaVersion: number;
    installedAt: string;
    /** `AGENT_PACK_SCHEMA_VERSION` at install time — informational, not enforced. */
    packSchemaVersion: number;
    entries: AgentManifestEntry[];
}
export declare function getAgentManifestPath(): string;
export declare function getAgentInstallBackupsDir(): string;
/** Load the manifest, or an empty (never-installed) manifest if none exists or it is corrupt. */
export declare function loadAgentManifest(): AgentInstallManifest;
/**
 * Persist a manifest, replacing any prior one. Re-running install writes a
 * fresh manifest reflecting the CURRENT full set of entries (deduped by
 * `path` — later entries in `entries` win) so a double-install never
 * accumulates duplicate entries (P-5 idempotency test).
 */
export declare function saveAgentManifest(manifest: AgentInstallManifest): void;
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