/**
 * findings/reserved — the reserved `_findings` argument: its schema, the one
 * decorator that adds it to a served tool, and the two peels that take it
 * back off before anything else reads the model's words.
 *
 * Pattern: pure functions over plain JSON; no scope, no I/O.
 * Role:    core/ layer leaf. `withFindingsArgument` runs at the ONE decoration
 *          site (the committed tool list in `buildToolsSlot`, and the seed
 *          fallback) — and so does its sources-only twin, `withSourcesArgument`
 *          (declared sources without the ledger: ruled tools only, `from`
 *          alone); `splitFindings` is the FIRST read of a tool call's args
 *          in the dispatch loop; `peelAnswerFindings` runs before the output
 *          schema judges an answer, reading the answer's text through
 *          `answerText.ts` — the scanner the stream shares, so the answer
 *          returned and the tokens shown are the same text. `ledger.ts` turns
 *          what they return into rows.
 *
 * THE LAWS THIS FILE KEEPS
 *   - Never mutate a schema or an args object: every changed value is a
 *     rebuilt copy, and an unchanged one is the SAME reference (so an unarmed
 *     path, or a schema the author already decorated, is byte-identical).
 *   - `_findings` is never added to a tool's `required` and never touches
 *     `additionalProperties`; the author's own `_findings` property wins.
 *   - Never coerce, never infer: a field that fails its enum check is dropped
 *     and COUNTED (`malformed`), never defaulted. An absent declaration stays
 *     absent — `splitFindings` returns no `findings` for it.
 *   - `FINDINGS_ARGUMENT_SCHEMA` is the frozen base and is never edited. The
 *     OFFER (`withFindingsArgument`'s second argument — the ids of served
 *     results the model can still read: no standing, `fact` or `open`,
 *     newest first; `offer.ts · offeredResultIds`) is a rebuilt copy per call
 *     whose `previous.items.properties.toolCallId` carries `enum: offer`; an
 *     empty offer serves the base by reference. The offer is what the model
 *     may COPY, never what the library resolves: an id outside it is still
 *     recorded as the model wrote it (`ledger.ts · standingRowsFrom`,
 *     `unknownId: true`), never mapped to a position — and every id inside
 *     it resolves, because the rows are identified against the same served
 *     history the offer was read from (`offer.ts · knownResults`).
 *
 * Both model-facing strings here (`FINDINGS_INSTRUCTION` and the schema's
 * description) say what the model may DO and never what the library
 * guarantees; `test/modelFacingSurfaces.test.ts` runs them through
 * `unprovable` so a later call cannot falsify a sentence.
 */
import type { LLMToolSchema } from '../../../provider-contract/types.js';
import { type FindingsDeclaration } from './types.js';
type PlainObject = Readonly<Record<string, unknown>>;
/**
 * How many ids an offer lists at most: the newest results the model may
 * still name come first, and the late DATA reports omitted whole IDs
 * in its counters.
 */
export declare const FINDINGS_OFFER_CAP = 32;
/**
 * The JSON schema of the reserved property — frozen, served as-is, and NEVER
 * listed in the parent's `required`. `basis` is required INSIDE it so a model
 * that opens the object says why it made the call.
 */
export declare const FINDINGS_ARGUMENT_SCHEMA: PlainObject;
/**
 * The `from` property (honesty layer 2, declared sources) — where each
 * argument value of the call came from, planted ONLY under the sources arm
 * (`.findings({ argumentSources: true })` or `.inputsLayer({ argumentSources:
 * true })`) and ONLY on a tool that declares argument rules
 * (`withFindingsArgument`'s `from` option, `withSourcesArgument`): planted
 * everywhere it would cost every served tool its bytes before any benefit is
 * measured.
 *
 * THE ONE PLACE `from` IS EXPLAINED (step 5, review round 1 of the bench). The
 * sources' meanings live in `source`'s description, what the record keeps in
 * the array's, and there is no second copy in the system prompt: the paid
 * step-5 run served both (a 447-character instruction line beside this
 * property) and the explanation cost its characters twice on every request.
 * The wording is positive on purpose — the first draft opened "Optional:" and
 * closed "Leave an argument out rather than guess", and the model read `from`
 * as a place to cite RESULTS (34 of its 35 `from` arrays named a result; not
 * one named the person's words unless it also named a result). A value with
 * no entry is not refused; the sentence says what the record then holds.
 *
 * Says what the model may declare and what the record keeps, and nothing
 * about what serving does; judged by `unprovable` at the strictest lifetime
 * in `test/modelFacingSurfaces.test.ts`.
 */
export declare const FINDINGS_FROM_PROPERTY: PlainObject;
/**
 * The reserved property DECLARED SOURCES plant WITHOUT the findings ledger
 * (`.inputsLayer({ argumentSources: true })` on an agent that never called
 * `.findings()`): the versioned marker as its whole description — so
 * `withoutFindingsArgument` recognises it exactly as it recognises the
 * ledger's decoration — and `from` alone, required. No `basis`, no
 * `previous`, no offer: nothing here asks the model for a standing, so none of
 * the ledger's ~2,500 characters per served tool are paid for an arm that
 * only reads where argument values came from.
 */
export declare const FINDINGS_SOURCES_SCHEMA: PlainObject;
/**
 * The answer-turn `_findings` property, for a provider's structured output
 * (`.outputSchema(…, { strategy: 'native' })`, `nativeOutputFormat.ts`).
 *
 * What the served contract allows on an ANSWER is exactly what
 * `FINDINGS_INSTRUCTION` says: a top-level `_findings.previous`. So this is
 * that one property, taken from `FINDINGS_ARGUMENT_SCHEMA` itself (one source:
 * a later edit to the standings shape reaches the answer too) — with ONE wire
 * narrowing: an assertion's `value` is untyped there (any JSON), which a
 * structured output cannot decode without recursion, so here it is a string,
 * number, boolean or null. `readDeclaration` still reads whatever arrives.
 * No offer `enum`: IDs are listed in late advisory DATA, and a format that
 * changed with every offer would re-compile the grammar and invalidate the
 * prompt cache on every call. Built per call, never edited.
 */
export declare function findingsAnswerSchema(): PlainObject;
/**
 * The id of the always-on instruction `.findings()` registers (9.101.0) — the
 * name a receipt's `system.pieces` carries and a test can look for; the
 * declared-sources corpus leaves the library's own instruction out of the
 * app's text by it.
 */
export declare const FINDINGS_INSTRUCTION_ID = "findings-ledger";
/**
 * The always-on system instruction `.findings()` registers (the twin of
 * `outputSchema()`'s piece). It asks; it promises nothing about serving.
 */
export declare const FINDINGS_INSTRUCTION: string;
/**
 * The one line the instruction gains when the evidence gate is armed beside
 * the ledger (9.110.0, `findings/contingent.ts`): what the record does with
 * a value taken from a result the model set aside, and the two ways out —
 * re-establish it, or say so. Never registered alone, and never on an agent
 * with `.findings()` only: without `.namesAndNumbersFromEvidence()` there is
 * no corpus, nothing is recorded as contingent, and a sentence saying it
 * would be a promise the run cannot keep (`findingsInstructionFor`). It
 * says what the record holds and what the model may DO; judged by
 * `unprovable` at the strictest lifetime in `test/modelFacingSurfaces.test.ts`.
 */
export declare const FINDINGS_CONTINGENT_LINE: string;
/**
 * The instruction an armed agent registers: `FINDINGS_INSTRUCTION` as it
 * is, plus `FINDINGS_CONTINGENT_LINE` as one more line when the evidence
 * gate is armed too. Composed at `AgentBuilder.build` (the two doors may be
 * called in either order), and byte-identical to the constant when the gate
 * is absent — so the `.findings()`-only references are the bytes they were.
 * Declared sources add NO line here: `from` is explained once, in its own
 * property (`FINDINGS_FROM_PROPERTY`), on the ruled tools that carry it.
 */
export declare function findingsInstructionFor(arms: {
    readonly contingent: boolean;
}): string;
/**
 * The answer-turn ask (9.103.0) — appended to the served ledger piece
 * (`serve.ts · findingsLedgerPiece`) ONLY under
 * `findings({ answerAsk: 'quote-facts' })`, a bench-gated dial whose default
 * is `'none'`. It tells the model HOW to answer from the piece: the real-model
 * page's fourth run measured one fact value in twelve restated when the
 * piece is served with no such ask (`docs/design/2026-09-findings-ledger-real-model.md`
 * § Fourth run), and this is the instruction variant that run asked for. It
 * says what the model may DO with each kind of line and promises nothing
 * about what the library serves; a constant, so the cache law of the piece
 * holds with it (`serve.ts` · "The cache"). Judged by `unprovable` at the
 * strictest lifetime in `test/modelFacingSurfaces.test.ts`.
 */
export declare const FINDINGS_ANSWER_ASK: string;
/**
 * True when the schema's own `inputSchema.properties` carry `_findings` —
 * the AUTHOR's property. The ONE predicate every reader of that fact asks:
 * `withFindingsArgument` leaves such a schema by reference, the registry
 * refusal (`buildToolRegistry · assertReservedArgument`) names such a tool at
 * build, and the dispatch peel (`toolCalls · peelCall`) leaves such a call's
 * value alone — it is the author's argument, not the model's declaration.
 * `undefined` (a name nothing answers) owns nothing.
 */
export declare function ownsReservedArgument(schema: LLMToolSchema | undefined): boolean;
/** Plant the stable optional findings schema. The host's `from` capability is
 * fixed for a tool; mutable result IDs live in the late request DATA, never
 * here. Author-owned properties win and decorating twice is idempotent.
 */
export declare function withFindingsArgument(schema: LLMToolSchema, options?: {
    readonly from?: boolean;
}): LLMToolSchema;
/**
 * DECLARED SOURCES WITHOUT THE FINDINGS LEDGER (`.inputsLayer({
 * argumentSources: true })`, no `.findings()`): a REBUILT copy of a RULED
 * tool's schema with the reserved `_findings` argument carrying `from` alone
 * (`FINDINGS_SOURCES_SCHEMA`, by reference) — the twin of
 * `withFindingsArgument` for the one arm that plants the argument on ruled
 * tools only. The SAME reference when the author's own schema already carries
 * `_findings` (the author wins; `ownsReservedArgument`), and the caller plants
 * nothing on a tool with no rules, so an unruled tool is served the bytes it
 * always was. `required` and `additionalProperties` stay as the author wrote
 * them.
 *
 * @example
 * ```ts
 * withSourcesArgument(searchLogs.schema).inputSchema.properties._findings; // FINDINGS_SOURCES_SCHEMA
 * ```
 */
export declare function withSourcesArgument(schema: LLMToolSchema): LLMToolSchema;
/**
 * The served `inputSchema` WITHOUT the library's decoration: when
 * `properties._findings` is the decoration (`isFindingsDecoration` — the
 * base, an offer copy, the sources-only decoration, or a committed clone of
 * any of them), a rebuilt copy minus
 * that property; otherwise the SAME reference — an author's own `_findings`
 * is not the decoration and is read as written. Asked by readers that judge
 * the model's ARGUMENTS against the schema (`callLLM` · the choice seam's
 * enum fence), so the reserved words (`direct`, `fact`, `noise`, …) and the
 * offered ids never excuse a value.
 */
export declare function withoutFindingsArgument(inputSchema: unknown): unknown;
/**
 * Whether a SERVED `inputSchema` carries the library's `_findings` decoration
 * (`isFindingsDecoration`) — so the model's `_findings` value on a call of
 * that tool is its declaration, never the author's argument. The one
 * predicate a reader of the model's arguments asks when only some served tools
 * carry the decoration (declared sources without the findings ledger plant it
 * on ruled tools only): `callLLM` · the choice seam peels such a call's
 * arguments before judging them.
 */
export declare function carriesFindingsDecoration(inputSchema: unknown): boolean;
/** @internal — shared with `peel.ts`. */
export interface ReadDeclaration {
    readonly declaration?: FindingsDeclaration;
    /** Entries and fields dropped as malformed. */
    readonly malformed: number;
    /**
     * Of `malformed`, the `from` entries dropped — set only when `from` was read
     * (the declared-sources arm), so the inputs layer can carry the count on an
     * argument row when the call files no basis row.
     */
    readonly sourcesMalformed?: number;
}
/** Which optional parts of `_findings` a reader reads. Absent → none (the declaration as it always was). */
export interface DeclarationArms {
    /** `_findings.from` — the declared-sources arm (honesty layer 2): `.findings({ argumentSources:
     *  true })` or `.inputsLayer({ argumentSources: true })`. */
    readonly argumentSources?: boolean;
}
/**
 * The one validator both peels share. Enum-checks every field; a field that
 * fails is dropped and counted; nothing is defaulted. No `declaration` comes
 * back when nothing readable survived.
 *
 * `arms.argumentSources` (honesty layer 2) also reads `from` — judged against
 * the call's own arguments (`args`, `_findings` taken off) by
 * `arguments/sources.ts` · `readSources` — and counts a `from`-only
 * declaration as readable. Unarmed, `from` is ignored exactly as any unknown
 * key is, so a `.findings()`-only agent reads the bytes it always read.
 */
/** @internal — shared with `peel.ts`. */
export declare function readDeclaration(raw: unknown, arms?: DeclarationArms, args?: PlainObject): ReadDeclaration;
export interface SplitFindings {
    /** The SAME reference when the key was absent; a fresh object without it otherwise. */
    readonly args: PlainObject;
    readonly findings?: FindingsDeclaration;
    /** Present only when something was dropped. */
    readonly malformed?: number;
}
/**
 * Take `_findings` off a tool call's args. The first read of `tc.args` in the
 * dispatch loop when armed: what comes back as `args` is what the call runs
 * with, and the model's declaration rides on `findings`. `arms` is the
 * reader's (`readDeclaration`): under declared sources the peel reads `from`
 * exactly as the inputs layer did, so both reads of one `_findings` agree —
 * the same readable declaration, the same malformed count.
 */
export declare function splitFindings(args: PlainObject, arms?: DeclarationArms): SplitFindings;
export {};