import { type ToolInvocation } from './registry.js';
/** Expand `~`, then resolve relative paths against the project directory. */
export declare function resolveProjectPath(value: string, projectDir: string): string;
/**
 * A configured executable is a path when it looks like one, and a PATH lookup
 * otherwise. `syside` means "whatever is on PATH"; `./bin/syside` means that
 * file.
 */
export declare function resolveExecutable(value: string | undefined, fallback: string, projectDir: string): string;
/**
 * Absolute path of a command, resolved the way the shell would.
 *
 * `memo toolchain probe` prints this: knowing *which* `syside` ran matters as
 * much as knowing that one did.
 */
export declare function whichExecutable(command: string, env?: NodeJS.ProcessEnv): string | undefined;
/**
 * A binary shipped in the same install, found without the user doing anything.
 *
 * "The user is responsible for PATH" is a rule about *third-party* tools. It
 * has never applied to MEMO's own: a default install must work with nothing
 * installed and nothing configured. So a bundled binary is looked up the way
 * Node looks up a module — walk up from a starting directory checking each
 * `node_modules/.bin` — which finds it whether the caller is a project, a
 * global install, or a workspace checkout.
 */
export declare function findBundledExecutable(name: string, fromDirs: readonly string[]): string | undefined;
export interface CaptureResult {
    status: number | null;
    stdout: string;
    stderr: string;
}
/**
 * Run a tool and capture its output.
 *
 * A non-zero status is not an exception: a validator rejecting the source is
 * the normal case, and its complaints are diagnostics. Only a binary that could
 * not be run at all is an error, because that means the user asked for a tool
 * MEMO cannot honour — and rule 2 says never downgrade to a different provider
 * in silence.
 */
export declare function captureToolInvocation(invocation: ToolInvocation, cwd: string): CaptureResult;
/** First line of `<command> --version`, or undefined when it will not say. */
export declare function probeVersion(command: string, args?: readonly string[]): string | undefined;
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