import type { Database as DatabaseType } from "better-sqlite3";
/** ICI-733: how a Todo is RUN, as opposed to what it says. Which skills its
 *  working session preloads, and which engine/model the NEXT attempt uses —
 *  the recovery lever that moves a rate-limited Todo to another engine without
 *  re-describing the work.
 *
 *  Additive, never columns on `work_items`: the exact-shape verifier refuses any
 *  drift in an existing table, so a new table is the only extension a deployed
 *  database can survive.
 *
 *  `skills` is a JSON array of skill names read through a fail-closed parser,
 *  like `work_item_approval_choices.options`. A row exists only once something
 *  has been set, so absence means "no dispatch preferences" and needs no
 *  sentinel value. */
export declare const WORK_ITEM_DISPATCH_TABLE_DDL = "\nCREATE TABLE IF NOT EXISTS work_item_dispatch (\n  work_item_id TEXT PRIMARY KEY REFERENCES work_items(id),\n  skills       TEXT,\n  engine       TEXT,\n  model        TEXT,\n  updated_at   TEXT NOT NULL\n)";
export declare const WORK_ITEM_DISPATCH_DDL = "\n\nCREATE TABLE IF NOT EXISTS work_item_dispatch (\n  work_item_id TEXT PRIMARY KEY REFERENCES work_items(id),\n  skills       TEXT,\n  engine       TEXT,\n  model        TEXT,\n  updated_at   TEXT NOT NULL\n);\n";
/** ICI-733: one row per caller-supplied create key, so a cron or connector that
 *  retries a create gets the Todo it already made instead of a duplicate.
 *  `(source, source_ref)` already dedupes machine mints, but it is server-minted
 *  and the trigger paths do not set it usefully — hence an explicit key.
 *
 *  `fingerprint` is what makes a replay honest: the same key carrying a
 *  materially different create is a caller bug, and answering it with the first
 *  Todo would silently drop the second. Mirrors `work_item_edit_receipts`. */
export declare const WORK_ITEM_CREATE_RECEIPTS_TABLE_DDL = "\nCREATE TABLE IF NOT EXISTS work_item_create_receipts (\n  key_digest   TEXT PRIMARY KEY CHECK (length(key_digest) = 64),\n  work_item_id TEXT NOT NULL REFERENCES work_items(id),\n  fingerprint  TEXT NOT NULL,\n  created_at   TEXT NOT NULL\n)";
export declare const WORK_ITEM_CREATE_RECEIPTS_DDL = "\n\nCREATE TABLE IF NOT EXISTS work_item_create_receipts (\n  key_digest   TEXT PRIMARY KEY CHECK (length(key_digest) = 64),\n  work_item_id TEXT NOT NULL REFERENCES work_items(id),\n  fingerprint  TEXT NOT NULL,\n  created_at   TEXT NOT NULL\n);\n";
/**
 * Data-level re-proof of the dispatch rows at boot (the DDL pins the shape, this
 * pins the rows): every row belongs to a live Todo, a stored skills list still
 * parses as an array of non-empty strings, and an engine/model that is present
 * is not a blank string. Returns false rather than throwing so the caller keeps
 * the single curated refusal message.
 */
export declare function workItemDispatchRowsAreSound(db: DatabaseType, hasWorkItem: (id: string) => boolean): boolean;
/**
 * Data-level re-proof of the create receipts: every receipt points at a Todo
 * that still exists, so a replay can never resolve to nothing.
 */
export declare function workItemCreateReceiptRowsAreSound(db: DatabaseType, hasWorkItem: (id: string) => boolean): boolean;
/** The stored skills list, or null when the blob is unreadable — one parser for
 *  the boot verifier and the read path, so neither can accept what the other
 *  rejects. */
export declare function parseSkillsJson(raw: string): string[] | null;
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