@genkit-ai/anthropic/lib/runner/converters/citations.mjs.map

Genkit AI framework plugin for Anthropic APIs.

{"version":3,"sources":["../../../src/runner/converters/citations.ts"],"sourcesContent":["/**\n * Copyright 2025 Google LLC\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n *     http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * Citation conversion utilities for Anthropic API responses.\n * Handles validation and conversion of citations from Anthropic's format to Genkit format.\n */\n\nimport { z } from 'genkit';\nimport type { AnthropicCitation } from '../../types.mjs';\n\n/** Structural type for Anthropic citations (works with both stable and beta APIs). */\nexport interface AnthropicCitationInput {\n  type: string;\n  cited_text: string;\n  // document_index is optional since web search citations don't have it\n  document_index?: number;\n  document_title?: string | null;\n  file_id?: string | null;\n  start_char_index?: number;\n  end_char_index?: number;\n  start_page_number?: number;\n  end_page_number?: number;\n  start_block_index?: number;\n  end_block_index?: number;\n}\n\n// --- Citation validation schemas ---\n\n/**\n * Base citation schema with common fields shared across all citation types.\n */\nconst baseCitationSchema = z.object({\n  cited_text: z.string(),\n  document_index: z.number(),\n  document_title: z.string().nullable().optional(),\n  file_id: z.string().nullable().optional(),\n});\n\n/**\n * Schema for character location citations (plain text documents).\n */\nconst charLocationCitationSchema = baseCitationSchema.extend({\n  type: z.literal('char_location'),\n  start_char_index: z.number(),\n  end_char_index: z.number(),\n});\n\n/**\n * Schema for page location citations (PDF documents).\n */\nconst pageLocationCitationSchema = baseCitationSchema.extend({\n  type: z.literal('page_location'),\n  start_page_number: z.number(),\n  end_page_number: z.number(),\n});\n\n/**\n * Schema for content block location citations (custom content documents).\n */\nconst contentBlockLocationCitationSchema = baseCitationSchema.extend({\n  type: z.literal('content_block_location'),\n  start_block_index: z.number(),\n  end_block_index: z.number(),\n});\n\n/**\n * Discriminated union schema for all supported citation types.\n */\nconst citationSchema = z.discriminatedUnion('type', [\n  charLocationCitationSchema,\n  pageLocationCitationSchema,\n  contentBlockLocationCitationSchema,\n]);\n\n/**\n * Converts Anthropic's citation format (snake_case) to genkit format (camelCase).\n * Only handles document-based citations (char_location, page_location, content_block_location).\n * Skips web search and other citation types that don't reference documents.\n */\nexport function fromAnthropicCitation(\n  citation: AnthropicCitationInput\n): AnthropicCitation | undefined {\n  // Skip citations without document_index (e.g., web search results)\n  if (citation.document_index === undefined) {\n    return undefined;\n  }\n\n  // Validate and parse citation with Zod\n  const result = citationSchema.safeParse(citation);\n  if (!result.success) {\n    // Invalid citation structure, skip it gracefully\n    return undefined;\n  }\n\n  const parsed = result.data;\n\n  // Convert validated citation to Genkit format\n  switch (parsed.type) {\n    case 'char_location':\n      return {\n        type: 'char_location',\n        citedText: parsed.cited_text,\n        documentIndex: parsed.document_index,\n        documentTitle: parsed.document_title ?? 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