/**
 * User prompt templating — simple template layer for augmenting per-agent
 * prompts with user-defined content.
 *
 * Supports {{variable}} substitution with explicit input fields.
 * No heavy templating engine — intentionally simple and predictable.
 */
import type { Logger } from '../types';
export interface TemplateContext {
    /** Current working directory. */
    cwd: string;
    /** Project ID. */
    projectId: string;
    /** Agent display name. */
    agentName: string;
    /** Current session ID. */
    sessionId?: string;
    /** Current date/time in ISO format. */
    datetime: string;
    /** Any custom key/value pairs. */
    [key: string]: string | undefined;
}
export declare class UserPromptTemplate {
    private logger;
    constructor(logger: Logger);
    /**
     * Render a template string by replacing {{variable}} placeholders
     * with values from the context.
     *
     * Unknown variables are left as-is with a warning logged.
     */
    render(template: string, context: TemplateContext): string;
    /**
     * Build the default template context from runtime values.
     */
    buildContext(params: {
        cwd: string;
        projectId: string;
        agentName: string;
        sessionId?: string;
        extra?: Record<string, string>;
    }): TemplateContext;
    /**
     * Extract all variable names used in a template string.
     */
    extractVariables(template: string): string[];
    /**
     * Validate a template string — returns warnings for unknown variables.
     */
    validate(template: string, knownExtra?: string[]): string[];
}
//# sourceMappingURL=user-prompt-template.d.ts.map