/**
 * Quality scoring for CLEO BRAIN memory entries.
 *
 * Computes a 0.0–1.0 quality score at insert time for each typed brain table entry.
 * Entries with a score below the minimum threshold are excluded from search results.
 *
 * Score formula per CA1 spec Section 3: source reliability * content richness * recency signals.
 * Each helper clamps the result to [0.0, 1.0].
 *
 * T549 Wave 1-B: source confidence multipliers and memory tier bonuses are applied
 * on top of the existing base formulas. The base formulas are unchanged; the
 * multiplier and tier bonus are additive final transforms.
 *
 * Exported for use in backfill (T530) and future scoring hooks.
 *
 * @task T531 T549
 * @epic T523
 */
import type { BrainMemoryTier, BrainSourceConfidence } from '../store/schema/memory-schema.js';
/** Minimum quality score for inclusion in search results. */
export declare const QUALITY_SCORE_THRESHOLD = 0.3;
/**
 * Apply the source confidence multiplier and optional memory tier bonus.
 *
 * This is the final transform in every compute function. It multiplies the
 * raw content-richness score by the source multiplier, then adds the tier
 * bonus, then clamps to [0.0, 1.0].
 *
 * @param rawScore - Score from the base content-richness formula
 * @param sourceConfidence - Source reliability level (defaults to 'agent')
 * @param memoryTier - Memory retention tier (defaults to 'short' = no bonus)
 */
export declare function applySourceMultiplier(rawScore: number, sourceConfidence?: BrainSourceConfidence, memoryTier?: BrainMemoryTier): number;
/** Input shape for pattern quality computation — mirrors StorePatternParams. */
export interface PatternQualityInput {
    type: string;
    pattern: string;
    context?: string | null;
    examples_json?: string | null;
    /** T549: source reliability level — applies multiplier on top of base score. */
    sourceConfidence?: BrainSourceConfidence;
    /** T549: memory retention tier — applies tier bonus on top of multiplied score. */
    memoryTier?: BrainMemoryTier;
}
/**
 * Compute quality score for a brain_patterns row.
 *
 * Base: 0.4 (auto-generated patterns start lower).
 * Bonuses:
 *   +0.10 for 'workflow' type (structured operational knowledge)
 *   +0.05 for 'success' type (validated positive pattern)
 *   +0.10 if pattern text exceeds 100 chars (richer description)
 *   +0.10 if context exceeds 50 chars (contextual detail present)
 *   +0.10 if examples_json contains more than 3 items (empirically validated)
 *
 * T549 Wave 1-B: raw score is then multiplied by the source confidence multiplier
 * and the memory tier bonus is added. Result clamped to [0.0, 1.0].
 */
export declare function computePatternQuality(params: PatternQualityInput): number;
/** Input shape for learning quality computation — mirrors StoreLearningParams. */
export interface LearningQualityInput {
    confidence: number;
    actionable?: boolean | null;
    insight: string;
    application?: string | null;
    /** T549: source reliability level — applies multiplier on top of base score. */
    sourceConfidence?: BrainSourceConfidence;
    /** T549: memory retention tier — applies tier bonus on top of multiplied score. */
    memoryTier?: BrainMemoryTier;
}
/**
 * Compute quality score for a brain_learnings row.
 *
 * Base: confidence value (already 0.0–1.0, caller-provided).
 * Bonuses:
 *   +0.10 if actionable (directly applicable guidance)
 *   +0.10 if insight text exceeds 100 chars (detailed insight)
 *   +0.10 if application exceeds 20 chars (concrete application context)
 *
 * T549 Wave 1-B: raw score is then multiplied by the source confidence multiplier
 * and the memory tier bonus is added. Result clamped to [0.0, 1.0].
 */
export declare function computeLearningQuality(params: LearningQualityInput): number;
/** Input shape for decision quality computation — mirrors StoreDecisionParams. */
export interface DecisionQualityInput {
    confidence: 'low' | 'medium' | 'high';
    rationale?: string | null;
    contextTaskId?: string | null;
    /** T549: source reliability level — applies multiplier on top of base score. */
    sourceConfidence?: BrainSourceConfidence;
    /** T549: memory retention tier — applies tier bonus on top of multiplied score. */
    memoryTier?: BrainMemoryTier;
}
/**
 * Compute quality score for a brain_decisions row.
 *
 * Base: mapped from confidence level (high=0.9, medium=0.7, low=0.5).
 * Bonuses:
 *   +0.10 if rationale exceeds 50 chars (substantiated reasoning)
 *   +0.05 if linked to a specific task (anchored in real work)
 *
 * T549 Wave 1-B: raw score is then multiplied by the source confidence multiplier
 * and the memory tier bonus is added. Result clamped to [0.0, 1.0].
 */
export declare function computeDecisionQuality(params: DecisionQualityInput): number;
/** Input shape for observation quality computation — mirrors ObserveBrainParams. */
export interface ObservationQualityInput {
    text: string;
    title?: string | null;
    /** T549: source reliability level — applies multiplier on top of base score. */
    sourceConfidence?: BrainSourceConfidence;
    /** T549: memory retention tier — applies tier bonus on top of multiplied score. */
    memoryTier?: BrainMemoryTier;
}
/**
 * Compute quality score for a brain_observations row.
 *
 * Base: 0.6 (manual observations start higher than auto-extracted entries).
 * Bonuses:
 *   +0.10 if text exceeds 200 chars (rich narrative)
 *   +0.05 if title exceeds 10 chars (meaningful label)
 *
 * T549 Wave 1-B: raw score is then multiplied by the source confidence multiplier
 * and the memory tier bonus is added. Result clamped to [0.0, 1.0].
 */
export declare function computeObservationQuality(params: ObservationQualityInput): number;
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