/**
 * Context Injection — stage-aware architecture constraint injection.
 *
 * Reads project docs (spec, arc42, ADRs) and extracts relevant sections
 * based on the current pipeline stage, producing a text block that can be
 * injected into a sub-agent's task prompt.
 */
export type PipelineStage = 'specify' | 'plan' | 'implement' | 'review';
export declare const PIPELINE_STAGES: readonly PipelineStage[];
export declare class ContextInjector {
    /**
     * Build a context injection string for a given project and pipeline stage.
     *
     * @param projectPath - Absolute path to the project root (must contain docs/).
     * @param stage - Current pipeline stage.
     * @returns Plain text string ready to be appended to a task prompt.
     */
    buildInjection(projectPath: string, stage: PipelineStage): string;
    private buildSpecifyContext;
    private buildPlanContext;
    private buildImplementContext;
    private buildReviewContext;
}
//# sourceMappingURL=context-injector.d.ts.map