import type { Api, Model } from "@earendil-works/pi-ai/compat";
import type { ExtensionContext } from "@earendil-works/pi-coding-agent";
import type { PiAutocommitConfig } from "./config.js";
/**
 * Validation result for a model string in `"provider/modelId"` format.
 */
export type ModelValidation = {
    ok: true;
    model: Model<Api>;
} | {
    ok: false;
    reason: string;
};
/**
 * Validate a model string in `"provider/modelId"` format against the model
 * registry.
 *
 * Runs three checks in order:
 * 1. Format — must contain a `/` with non-empty provider and modelId parts.
 * 2. Registry — the model must exist in `ctx.modelRegistry`.
 * 3. Auth — the model must have configured auth.
 *
 * Returns the resolved model on success, or a human-readable `reason` on
 * failure. Used both by `resolveModel` (for commit message generation) and
 * by the `/autocommit-model` command (for argument validation).
 */
export declare function validateModelString(ctx: ExtensionContext, modelStr: string): ModelValidation;
/**
 * Resolve the model to use for commit message generation.
 *
 * When `config.model` is set (in `"provider/modelId"` format), validate it
 * via `validateModelString`. If the model is invalid (bad format, not found,
 * or no auth), fall back to `ctx.model` and log a warning.
 *
 * Used by the commit prompt module and by the `/autocommit-model` command.
 */
export declare function resolveModel(ctx: ExtensionContext, config: PiAutocommitConfig): Model<Api> | undefined;
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