/**
 * Symbol represents a node in a GCF payload.
 */
export interface Symbol {
    /** Fully qualified identifier (e.g., "pkg/auth.Middleware") */
    qualifiedName: string;
    /** Node type: "function", "type", "method", etc. */
    kind: string;
    /** Relevance score (0.0 to 1.0) */
    score: number;
    /** Discovery method: "lsp_resolved", "ast_inferred", etc. */
    provenance: string;
    /** Hops from query center (0=target, 1=related, 2+=extended) */
    distance: number;
    /** Optional: function/method signature */
    signature?: string;
    /** Optional: score breakdown */
    components?: Components;
}
/**
 * Components holds the score breakdown for a symbol.
 */
export interface Components {
    blastRadius: number;
    confidence: number;
    recency: number;
    distance: number;
}
/**
 * Edge represents a directed relationship in a GCF payload.
 */
export interface Edge {
    /** Qualified name of source symbol */
    source: string;
    /** Qualified name of target symbol */
    target: string;
    /** Relationship type (e.g., "calls", "imports", "implements") */
    edgeType: string;
    /** Optional: "added", "removed", "unchanged" (for diff responses) */
    status?: string;
}
/**
 * Payload is the input/output structure for GCF encoding/decoding.
 */
export interface Payload {
    /** Producing tool name (e.g., "context_for_task") */
    tool: string;
    /** Token budget requested by the consumer */
    tokenBudget: number;
    /** Actual tokens consumed by this payload */
    tokensUsed: number;
    /** Content-addressed identity (hex SHA-256), enables delta encoding */
    packRoot?: string;
    /** Ordered by score descending within each distance group */
    symbols: Symbol[];
    /** Directed relationships between symbols */
    edges: Edge[];
}
/**
 * DeltaPayload represents the diff between a prior context pack and the
 * current result. Used for incremental context delivery.
 */
export interface DeltaPayload {
    tool: string;
    /** pack_root the consumer has */
    baseRoot: string;
    /** pack_root of the current result */
    newRoot: string;
    removed: Symbol[];
    added: Symbol[];
    removedEdges: Edge[];
    addedEdges: Edge[];
    deltaTokens: number;
    fullTokens: number;
}
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