/**
 * Encode one canonical vault-key segment for a Win32 filename. Percent is
 * escaped before every other character so decoding cannot collide with a
 * literal `%3A` name. The optional flag makes platform-specific behavior
 * directly testable without mutating `process.platform`.
 */
export declare function encodeLocalVaultSegment(segment: string, win32?: boolean): string;
/** Decode one local filename segment back to its canonical vault-key form. */
export declare function decodeLocalVaultSegment(segment: string, win32?: boolean): string;
/** Materialize a canonical slash-delimited vault key beneath a local root. */
export declare function localPathForVaultKey(root: string, key: string, win32?: boolean): string;
/**
 * Turn a local, root-relative path back into its canonical vault key. This
 * recognizes legacy percent-encoded Windows materializations as well as the
 * current codec, so they converge on one remote/journal key instead of
 * creating duplicates.
 */
export declare function vaultKeyForLocalPath(root: string, localPath: string, win32?: boolean): string;
/**
 * Collapse a vault-key spelling to its canonical logical form by repeatedly
 * percent-decoding every segment to a fixpoint.
 *
 * Mixed-version amplifier context: a pre-codec Windows engine uploads its
 * local farm names verbatim, minting keys like `core%3Askill`; a post-codec
 * engine that materializes that key re-escapes the `%` on its next walk, and
 * a pre-codec peer re-uploads `core%253Askill` — one junk generation per hop.
 * Every generation decodes to the same fixpoint (`core:skill`), so the
 * fixpoint — never the raw spelling — is the identity of the logical path.
 * Decodes with win32 semantics unconditionally: junk spellings are a
 * key-space (wire) phenomenon, not a host-platform one. Used by the pull
 * planner's junk-spelling guard; deliberately NEVER used to rewrite keys
 * (journals and the wire always keep the exact spelling they were minted
 * with — collapsing families is the vault doctor's job, US-003).
 */
export declare function canonicalVaultSegmentSpelling(segment: string): string;
export declare function canonicalVaultKeySpelling(key: string): string;
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