/**
 * SDDStrategy - Spec-Driven Development output format
 *
 * Generates three interconnected documents that form a complete development specification:
 * - spec.md: Requirements, constraints, acceptance criteria
 * - plan.md: Implementation phases, timeline, dependencies
 * - tasks.md: Task breakdown with Mermaid dependency graph
 *
 * @module strategies/sdd-strategy
 * @see {@link https://github.com/Anselmoo/mcp-ai-agent-guidelines/blob/development/plan-v0.13.x/specs/SPEC-001-output-strategy-layer.md SPEC-001} §4.4
 */
import type { SessionState } from "../domain/design/types.js";
import type { PromptResult } from "../domain/prompting/types.js";
import type { OutputArtifacts, RenderOptions } from "./output-strategy.js";
import { OutputApproach } from "./output-strategy.js";
import { BaseStrategy } from "./shared/base-strategy.js";
import type { ValidationResult } from "./shared/types.js";
/**
 * SDDStrategy implements Spec-Driven Development output format.
 *
 * Supports rendering:
 * - SessionState: Complete design session state into spec/plan/tasks
 * - PromptResult: Prompt configuration into SDD format
 *
 * @extends {BaseStrategy<SessionState | PromptResult, OutputArtifacts>}
 */
export declare class SDDStrategy extends BaseStrategy<SessionState | PromptResult, OutputArtifacts> {
    protected readonly name = "sdd";
    protected readonly version = "2.0.0";
    /** The output approach this strategy implements */
    readonly approach = OutputApproach.SDD;
    /**
     * Validate that the input is a SessionState or PromptResult.
     *
     * @param input - Input to validate
     * @returns Validation result
     */
    validate(input: SessionState | PromptResult): ValidationResult;
    /**
     * Execute the SDD rendering strategy.
     *
     * @param input - The domain result to render (SessionState or PromptResult)
     * @returns Output artifacts with primary spec.md and secondary plan.md, tasks.md
     */
    execute(input: SessionState | PromptResult, _options?: Partial<RenderOptions>): Promise<OutputArtifacts>;
    /**
     * Check if this strategy supports rendering a specific domain type.
     *
     * @param domainType - The domain type identifier
     * @returns True if this strategy can render the domain type
     */
    supports(domainType: string): boolean;
    /**
     * Render a SessionState to SDD artifacts.
     *
     * @param result - The session state to render
     * @param options - Optional rendering options
     * @returns Output artifacts with spec, plan, and tasks documents
     * @private
     */
    private renderSession;
    /**
     * Render a PromptResult to SDD artifacts.
     *
     * @param result - The prompt result to render
     * @param options - Optional rendering options
     * @returns Output artifacts with spec, plan, and tasks documents
     * @private
     */
    private renderPrompt;
    /**
     * Generate spec.md from SessionState.
     *
     * @param result - The session state
     * @returns Specification document
     * @private
     */
    private generateSpec;
    /**
     * Generate plan.md from SessionState.
     *
     * @param result - The session state
     * @returns Implementation plan document
     * @private
     */
    private generatePlan;
    /**
     * Generate tasks.md from SessionState.
     *
     * @param result - The session state
     * @returns Task breakdown document with Mermaid diagram
     * @private
     */
    private generateTasks;
    /**
     * Generate spec.md from PromptResult.
     *
     * @param result - The prompt result
     * @returns Specification document
     * @private
     */
    private generateSpecFromPrompt;
    /**
     * Generate plan.md from PromptResult.
     *
     * @param result - The prompt result
     * @returns Implementation plan document
     * @private
     */
    private generatePlanFromPrompt;
    /**
     * Generate tasks.md from PromptResult.
     *
     * @param result - The prompt result
     * @returns Task breakdown document
     * @private
     */
    private generateTasksFromPrompt;
    /**
     * Extract title from SessionState.
     *
     * @param result - The session state
     * @returns Title string
     * @private
     */
    private extractTitle;
    /**
     * Extract overview from SessionState.
     *
     * @param result - The session state
     * @returns Overview text
     * @private
     */
    private extractOverview;
    /**
     * Extract functional requirements from SessionState.
     *
     * @param result - The session state
     * @returns Formatted requirements list
     * @private
     */
    private extractFunctionalRequirements;
    /**
     * Extract non-functional requirements from SessionState.
     *
     * @param result - The session state
     * @returns Formatted non-functional requirements
     * @private
     */
    private extractNonFunctionalRequirements;
    /**
     * Extract constraints from SessionState.
     *
     * @param result - The session state
     * @returns Formatted constraints list
     * @private
     */
    private extractConstraints;
    /**
     * Extract success criteria from SessionState.
     *
     * @param result - The session state
     * @returns Formatted success criteria
     * @private
     */
    private extractSuccessCriteria;
    /**
     * Extract phases from SessionState.
     *
     * @param result - The session state
     * @returns Formatted phases description
     * @private
     */
    private extractPhases;
    /**
     * Extract timeline from SessionState.
     *
     * @param result - The session state
     * @returns Formatted timeline
     * @private
     */
    private extractTimeline;
    /**
     * Extract dependencies from SessionState.
     *
     * @param result - The session state
     * @returns Formatted dependencies
     * @private
     */
    private extractDependencies;
    /**
     * Extract risks from SessionState.
     *
     * @param result - The session state
     * @returns Formatted risks
     * @private
     */
    private extractRisks;
    /**
     * Extract tasks from SessionState.
     *
     * @param result - The session state
     * @returns Formatted task list
     * @private
     */
    private extractTasks;
    /**
     * Generate Mermaid dependency graph from SessionState.
     *
     * @param result - The session state
     * @returns Mermaid diagram syntax
     * @private
     */
    private generateDependencyGraph;
    /**
     * Type guard for SessionState.
     *
     * @param result - The value to check
     * @returns True if result is a SessionState
     * @private
     */
    private isSessionState;
    /**
     * Type guard for PromptResult.
     *
     * @param result - The value to check
     * @returns True if result is a PromptResult
     * @private
     */
    private isPromptResult;
}
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