/**
 * Process-matrix on-disk store: one file per process (`state/process-matrix/<entryId>.json`),
 * durable across restarts and crashes (see `agent-paths.ts` -- this is machine state, not
 * transient `work/`).
 *
 * Each entry is owned by the process it describes: a master writes and heartbeats its OWN entry,
 * a worker self-registers and heartbeats its OWN entry (see `runtime.ts`'s module doc for the one
 * sanctioned, ask-gated exception during orphan adoption/cleanup). A missing or corrupt entry file
 * reads as absent -- never an error -- matching `worktree-sync/store.ts`'s store doctrine.
 */
import type { ProcessMatrixEntry, ProcessRole } from "./codes.ts";
export declare function processMatrixDir(agentDir: string): string;
export declare function entryPath(agentDir: string, entryId: string): string;
/** Stable entry identity: one entry per (role, sessionId) pair. */
export declare function buildEntryId(role: ProcessRole, sessionId: string): string;
export declare function readEntry(agentDir: string, entryId: string): Promise<ProcessMatrixEntry | undefined>;
export declare function listEntries(agentDir: string): Promise<ProcessMatrixEntry[]>;
export declare function writeEntry(agentDir: string, entry: ProcessMatrixEntry): Promise<void>;
/** Atomically replace one entry only when its full persisted value still equals `expected`. */
export declare function writeEntryIfUnchanged(agentDir: string, entryId: string, expected: ProcessMatrixEntry | undefined, next: ProcessMatrixEntry): Promise<boolean>;
/** Sync conditional replacement for best-effort `process.on("exit")` terminal writes. */
export declare function writeEntryIfUnchangedSync(agentDir: string, expected: ProcessMatrixEntry, next: ProcessMatrixEntry): boolean;
export declare function removeEntry(agentDir: string, entryId: string): Promise<void>;
export declare function removeEntryIfUnchanged(agentDir: string, expected: ProcessMatrixEntry): Promise<boolean>;
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