{
  "id": "doctolib-doctolib/you-are-a-senior-functional-ullman-subagent-aebafa2c",
  "slug": "you-are-a-senior-functional-ullman-subagent-aebafa2c",
  "title": "Session: you-are-a-senior-functional-ullman-subagent-aebafa2c — 2026-04-22",
  "type": "source",
  "project": "doctolib-doctolib",
  "date": "2026-04-22",
  "started": "2026-04-22T10:05:52.502000+00:00",
  "ended": "2026-04-22T10:06:48.039000+00:00",
  "model": "claude-haiku-4-5-20251001",
  "cwd": "/Users/USER/workspace/doctolib/doctolib",
  "git_branch": ".invalid",
  "permission_mode": "",
  "user_messages": 1,
  "tool_calls": 14,
  "tools_used": [
    "Bash",
    "Read"
  ],
  "is_subagent": true,
  "wikilinks_out": [],
  "body_text": "Project: doctolib-doctolib · Branch: .invalid · Mode:  · Model: claude-haiku-4-5-20251001\n\nStats: 1 user messages, 14 tool calls, tools used: Bash, Read.\n\nConversation\n\nTurn 1 — User\n\nI'm designing a typed DmpApiError class for the @doctolib/dmp package at /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/. The DMP API returns structured error payloads like:\n\n{\n  \"i_apiErrorCode\": 1,\n  \"i_apiErrorType\": 6000,\n  \"s_apiErrorContext\": \"DmpConnect-JS2 server\",\n  \"s_apiErrorDescription\": \"Technical software error\",\n  \"s_apiErrorExtendedInformations\": \"Operation timed out.\",\n  \"s_apiErrorTypeDescription\": \"Software error\",\n  \"s_status\": \"ERROR\"\n}\n\nPlease investigate:\n\n1. Existing error classes: Are there any custom Error subclasses in packages/@doctolib/dmp/src/? Search for class.Error, extends Error, BusinessError. Find BusinessError specifically — where is it defined, what fields does it have?\n\n2. DmpApi.ts context — read the full find() private method (around lines 585–612 in packages/@doctolib/dmp/src/business/DmpApi.ts) to see the exact current code and how errors are currently thrown.\n\n3. FrDmpTypes.ts — read the DmpResponse interface (around line 192) and FindDocumentsResponse (around line 407) to see all current fields.\n\n4. Package exports — what does packages/@doctolib/dmp/src/index.ts export? I need to know if a new error class would be exported from the package.\n\n5. How BusinessError is caught upstream — in packages/@doctolib/national-health-records/src/hooks/useSearchDocuments.ts, how are errors currently handled? Read the full file.\n\nReport the exact code found for each point, with file paths and line numbers.\n\nTurn 1 — Assistant\n\nI'll help you investigate the error handling architecture in the DMP package. Let me search for all the information you need.\n\nTools used:\n\n- Bash: find /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src -type f -name \".ts\" | head -20\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/index.ts\n/Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/test-index.ts\n/Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/types/FrDmpTypes.ts\n/Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/types/DmpApi.ts\n/Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/business/frDmpPayloadBuilders.ts\n/Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/busine\n…(truncated, 1381 more chars)\n\nNow let me search for error classes and BusinessError:\n\nTools used:\n\n- Bash: grep -r \"class.Error\" /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src --include=\".ts\" | grep -v \".test.ts\"\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/api/auth-types.ts:export class DmpAuthError extends Error {\n\nTools used:\n\n- Bash: grep -r \"extends Error\" /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src --include=\".ts\" | grep -v \".test.ts\"\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/api/auth-types.ts:export class DmpAuthError extends Error {\n\nTools used:\n\n- Bash: grep -r \"BusinessError\" /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src --include=\".ts\"\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/business/CallDmpDelegate.test.ts:import { DmpAction, BusinessError } from '@doctolib/tpf-french-teleservices'\n/Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/business/CallDmpDelegate.test.ts:    it('should throw BusinessError when s_status is not OK', () => {\n/Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/business/CallDmpDelegate.test.ts:      expect(() => delegate.buildResponse(rawResponse)\n…(truncated, 2129 more chars)\n\nGood! BusinessError is from an external package. Now let me read the key files:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/business/DmpApi.ts\n\nTool results:\n\n  → result (ok): 1\t/ eslint-disable @typescript-eslint/no-non-null-assertion /\n2\timport type { Patient } from 'monolith_DEPRECATED/types/doctor/api/Patient'\n3\timport type { MedicalFolder } from '@doctolib/ehr-core'\n4\timport { blobToBase64 } from 'monolith_DEPRECATED/shared/BlobHelper'\n5\timport { getLoincCode, titlesByTypeAndKind } from 'monolith_DEPRECATED/models/document/document'\n6\timport { isMinor } from 'monolith_DEPRECATED/models/patient/patient'\n7\timport { isMedicalSynthesis } from 'monolith_DEPRECATED/c\n…(truncated, 34479 more chars)\n\nNow let me read the other key files in parallel:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/types/FrDmpTypes.ts (1–450)\n\nTool results:\n\n  → result (ok): 1\timport type { MedicalFolder } from '@doctolib/ehr-core'\n2\timport type { DmpResult } from '@doctolib/tpf-french-teleservices'\n3\timport type { Patient } from 'monolith_DEPRECATED/types/doctor/api/Patient'\n4\timport type { DmpDocumentToAdd, FrDmpDocument } from '../business/FrDmpConfig'\n5\t\n6\texport interface FrDmpSessionStorage {\n7\t  sessionId: string\n8\t  practiceIndex: number\n9\t  healthcareSettings: string\n10\t  createdAt: Date\n11\t}\n12\t\n13\t// DMP Requests\n14\texport interface DmpRequest {\n15\t  s_co\n…(truncated, 15477 more chars)\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/index.ts\n\nTool results:\n\n  → result (ok): 1\texport {\n2\t  type DmpDocumentItem,\n3\t  type DmpDocumentToAdd,\n4\t  type DmpDocumentToDelete,\n5\t  type FrDmpDocument,\n6\t  ItemType,\n7\t  type UploadedDmpDocumentItem,\n8\t} from './business/FrDmpConfig'\n9\texport { getErrorMessage, getWarningMessage } from './business/DmpI18nMessage'\n10\texport type {\n11\t  DmpApi,\n12\t  DmpAuthor,\n13\t  DmpDocument,\n14\t  DmpDocumentContent,\n15\t  DmpSetUpProps,\n16\t  ShareProps,\n17\t  UnshareProps,\n18\t  SearchProps,\n19\t  SearchResult,\n20\t  DocumentStatusUpdateProps,\n21\t} \n…(truncated, 5765 more chars)\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/api/auth-types.ts\n\nTool results:\n\n  → result (ok): 1\texport type DmpConnection = {\n2\t  sessionId: string\n3\t  healthcareSettings: string\n4\t}\n5\t\n6\texport type PinValidationResult = { success: true } | { success: false; blocked: boolean; remainingAttempts?: number }\n7\t\n8\texport type DmpAuthErrorCode =\n9\t  | 'PIN_CANCELLED'\n10\t  | 'PIN_BLOCKED'\n11\t  | 'NO_CPX_READER'\n12\t  | 'NO_LOCATION'\n13\t  | 'NO_SITUATION'\n14\t  | 'NO_LOCATION_MATCH'\n15\t  | 'INCOMPLETE_CPX'\n16\t  | 'SESSION_ERROR'\n17\t  | 'CPX_CARD_ERROR'\n18\t  | 'READER_ERROR'\n19\t  | 'CPX_READ_ERROR\n…(truncated, 586 more chars)\n\nNow let me check the upstream error handling in the useSearchDocuments hook:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/national-health-records/src/hooks/useSearchDocuments.ts\n\nTool results:\n\n  → result (ok): 1\timport { useQueryClient } from '@tanstack/react-query-v5'\n2\timport type { Patient } from 'monolith_DEPRECATED/types/doctor/api/Patient'\n3\timport { isFeatureEnabled } from '@doctolib/variation_management'\n4\timport type { NhrDocumentListVariant, MapFiltersToSearchDocumentsParams, ServerFilters } from '../variants/types'\n5\timport { useNationalHealthRecords } from './useNationalHealthRecords'\n6\timport { generateNhrDocuments } from '../mocks/generateNhrDocuments'\n7\timport { filterMockedDocuments } \n…(truncated, 2782 more chars)\n\nPerfect! Now let me search for where BusinessError is imported from to verify it's external:\n\nTools used:\n\n- Bash: grep -r \"BusinessError\" /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/tpf-french-teleservices 2>/dev/null | head -5\n\nTool results:\n\n  → result (ok): (Bash completed with no output)\n\nLet me check if that package exists:\n\nTools used:\n\n- Bash: find /Users/USER/workspace/doctolib/doctolib -name \"tpf-french-teleservices\" -o -name \"teleservices\" 2>/dev/null | head -10\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/doctolib/node_modules/@doctolib/tpf-french-teleservices\n/Users/USER/workspace/doctolib/doctolib/.claude/worktrees/crazy-volhard/packages/@doctolib/secure_messaging_core/src/services/fr/mssanteICanopee/types/french-teleservices-layer.ts\n\nTools used:\n\n- Bash: grep -r \"export class BusinessError\" /Users/USER/workspace/doctolib/doctolib/node_modules/@doctolib/tpf-french-teleservices 2>/dev/null | head -3\n\nTool results:\n\n  → result (ok): /Users/USER/workspace/doctolib/doctolib/node_modules/@doctolib/tpf-french-teleservices/dist/core/auth-errors.js:export class BusinessError extends FrenchTeleserviceError {\n/Users/USER/workspace/doctolib/doctolib/node_modules/@doctolib/tpf-french-teleservices/src/core/auth-errors.ts:export class BusinessError extends FrenchTeleserviceError {\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/node_modules/@doctolib/tpf-french-teleservices/src/core/auth-errors.ts\n\nTool results:\n\n  → result (ok): 1\timport { FrenchTeleserviceError } from './errors'\n2\t\n3\texport class TransportError extends FrenchTeleserviceError {\n4\t  constructor(serviceName: string, message?: string) {\n5\t    super(message ?? 'A transport error occurred', 'TRANSPORT_ERROR', serviceName)\n6\t    this.name = 'TransportError'\n7\t  }\n8\t}\n9\t\n10\texport class CpsAuthError extends FrenchTeleserviceError {\n11\t  constructor(serviceName: string, message?: string) {\n12\t    super(message ?? 'CPS card authentication failed', 'CPS_AUTH_ERRO\n…(truncated, 1025 more chars)\n\nPerfect! Now let me look at the CallDmpDelegate to see how errors are currently thrown:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/business/CallDmpDelegate.ts\n\nTool results:\n\n  → result (ok): 1\timport type { ServiceDelegate, AuthContext, DmpPayload, DmpResult } from '@doctolib/tpf-french-teleservices'\n2\timport { DmpAction, BusinessError } from '@doctolib/tpf-french-teleservices'\n3\timport { STATUS_OK } from './FrDmpConstants'\n4\timport { mapCpsToPscPayload } from './mapCpsToPscPayload'\n5\t\n6\tconst ACTION_TO_COMMAND: Record<string, string> = {\n7\t  [DmpAction.GetStatus]: 'hl_getDirectAuthenticationDMPStatus',\n8\t  [DmpAction.FindDocuments]: 'hl_findDocuments',\n9\t  [DmpAction.SendDocument]:\n…(truncated, 2570 more chars)\n\nExcellent! Now I have all the information needed. Let me provide a comprehensive report.\n\nInvestigation Summary\n\nI've thoroughly explored the DMP package error handling architecture. Here are my findings:\n\n---\n\n1. Existing Error Classes\n\nDmpAuthError (Custom)\nFile: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/api/auth-types.ts (lines 21-29)\n\nexport class DmpAuthError extends Error {\n  code: DmpAuthErrorCode\n\n  constructor(code: DmpAuthErrorCode, message?: string) {\n    super(message ?? code)\n    this.name = 'DmpAuthError'\n    this.code = code\n  }\n}\n\nFields:\n- code: DmpAuthErrorCode (e.g., 'PIN_CANCELLED', 'PIN_BLOCKED', 'NO_CPX_READER')\n- Inherits message from Error\n\nBusinessError (External - from @doctolib/tpf-french-teleservices)\nSource: /Users/USER/workspace/doctolib/doctolib/node_modules/@doctolib/tpf-french-teleservices/src/core/auth-errors.ts (lines 24-29)\n\nexport class BusinessError extends FrenchTeleserviceError {\n  constructor(serviceName: string, message?: string) {\n    super(message ?? 'The teleservice returned a business error', 'BUSINESS_ERROR', serviceName)\n    this.name = 'BusinessError'\n  }\n}\n\nFields:\n- serviceName: Domain identifier (e.g., 'dmp')\n- message: Error description\n- Inherits from FrenchTeleserviceError (base class for teleservice errors)\n\n---\n\n2. DmpApi.ts - find() Private Method\n\nFile: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/business/DmpApi.ts (lines 585-612)\n\nprivate async find(props: SearchProps): Promise<SearchResult> {\n  if (this.dmpService) {\n    const payload = buildFindDocumentsPayload(props)\n\n    try {\n      const response = await this.dmpService.call<FindDocumentsResponse>(DmpAction.FindDocuments, payload)\n      return this.toSearchResult(response)\n    } catch (e) {\n      if (e instanceof BusinessError) {\n        // Legacy does not throw on FindDocuments errors — it returns\n        // the response as-is and toSearchResult handles empty Documents.\n        return this.toSearchResult({ Documents: [] } as FindDocumentsResponse)\n      }\n\n      throw e\n    }\n  }\n\n  const cachedSession = await getCachedDmpSession()\n\n  if (!cachedSession) {\n    throw new Error('No DMP session found')\n  }\n\n  const { sessionId } = cachedSession\n  const findDocumentsResponse = await findDocuments({ sessionId, ...props })\n  return this.toSearchResult(findDocumentsResponse)\n}\n\nKey Pattern: BusinessError is caught and returns empty { Documents: [] } rather than propagating. This is intentional legacy behavior.\n\n---\n\n3. FrDmpTypes.ts - Key Response Interfaces\n\nFile: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/types/FrDmpTypes.ts\n\nDmpResponse (line 192-197)\nexport interface DmpResponse extends DmpResult {\n  // Value \"OK\" for success.\n  s_status?: string\n  i_apiErrorCode?: string\n  i_apiErrorType?: string\n}\n\nFindDocumentsResponse (line 407-412)\nexport interface FindDocumentsResponse extends DmpResponse {\n  / Array of document metadata matching the search criteria /\n  Documents: DocumentMetadata[]\n  / Optional error message. Consider using i_apiErrorCode and i_apiErrorType from DmpResponse. /\n  errorMessage?: string\n}\n\nField Mapping from Your JSON Example:\n- i_apiErrorCode → i_apiErrorCode (mapped)\n- i_apiErrorType → i_apiErrorType (mapped)\n- s_apiErrorContext → NOT currently in interface\n- s_apiErrorDescription → NOT currently in interface\n- s_apiErrorExtendedInformations → NOT currently in interface\n- s_apiErrorTypeDescription → NOT currently in interface\n- s_status → s_status (mapped)\n\n---\n\n4. Package Exports\n\nFile: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/index.ts (lines 1-192)\n\nCurrently Exported:\n- DmpAuthError (line 77) ✓\n- DmpApiImpl (line 22)\n- Various types and functions\n\nNOT Exported:\n- BusinessError (from external package)\n- Any custom DMP API error class\n\nImplication: A new DmpApiError class would need to be explicitly exported (line 77 area would be appropriate).\n\n---\n\n5. Upstream Error Handling\n\nFile: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/national-health-records/src/hooks/useSearchDocuments.ts (full file, 63 lines)\n\nCurrent Error Handling (lines 53-56):\nretry: (failureCount, error) => {\n  if (error?.message?.includes('DMPAccessDeniedByExcededThreshold')) return false\n  return failureCount < DMP_DOCUMENTS_MAX_RETRIES\n}\n\nKey Pattern: \n- Errors are caught by React Query's retry mechanism\n- Only checks error.message string for 'DMPAccessDeniedByExcededThreshold'\n- Uses generic retry strategy (3 max retries by default)\n- No typed error handling — relies on string matching in error messages\n\n---\n\n6. How BusinessError is Currently Thrown\n\nFile: /Users/USER/workspace/doctolib/doctolib/packages/@doctolib/dmp/src/business/CallDmpDelegate.ts (line 64)\n\nif (response.s_status && response.s_status !== STATUS_OK) {\n  throw new BusinessError('dmp', response.s_apiErrorDmpErrorCode ?? response.i_apiErrorCode ?? response.s_status)\n}\n\nThis is the delegate validation layer — it throws BusinessError when the API response indicates an error.\n\n---\n\nSummary for Your Design\n\nYou have two error patterns in the codebase:\n\n1. AuthError Pattern (DmpAuthError): Domain-specific, extends Error, has typed error codes\n2. Generic BusinessError (external): Generic message-only pattern, used when delegate validates responses\n\nFor a typed DmpApiError class, you should:\n- Follow the DmpAuthError pattern (typed codes in a union type)\n- Include structured fields matching the API response (the full error context your JSON shows)\n- Make it exportable via index.ts\n- Update CallDmpDelegate.buildResponse() to throw it instead of generic BusinessError\n- Update upstream retry logic in useSearchDocuments.ts to check instanceof DmpApiError with typed codes",
  "sha256": "10eef6680f150440",
  "source_url": "sessions/doctolib-doctolib/2026-04-22T10-05-doctolib-doctolib-you-are-a-senior-functional-ullman-subagent-aebafa2c.html"
}