{ "id": "doctolib-doctolib/snoopy-roaming-dongarra-subagent-aa8158a8", "slug": "snoopy-roaming-dongarra-subagent-aa8158a8", "title": "Session: snoopy-roaming-dongarra-subagent-aa8158a8 — 2026-02-24", "type": "source", "project": "doctolib-doctolib", "date": "2026-02-24", "started": "2026-02-24T15:17:25.586000+00:00", "ended": "2026-02-24T15:19:20.264000+00:00", "model": "claude-haiku-4-5-20251001", "cwd": "/Users/USER/workspace/doctolib/doctolib", "git_branch": "FHIR-2036-implement-hl-setDmpAccessMode", "permission_mode": "", "user_messages": 1, "tool_calls": 35, "tools_used": [ "Bash", "Grep", "Glob", "Read" ], "is_subagent": true, "wikilinks_out": [], "body_text": "Project: doctolib-doctolib · Branch: FHIR-2036-implement-hl-setDmpAccessMode · Mode: · Model: claude-haiku-4-5-20251001\n\nStats: 1 user messages, 35 tool calls, tools used: Bash, Grep, Glob, Read.\n\nConversation\n\nTurn 1 — User\n\nSearch the doctolib monolith at /Users/USER/workspace/doctolib/doctolib for:\n\n1. How account cohort feature switches are defined and checked in Ruby/Rails code. Look for patterns like \"account_cohort\", \"cohort_feature_switch\", \"feature_switch\" in engines. Specifically check how feature switches are exposed to the frontend (how they get into window.dl_constants or similar). Look in:\n - engines/ directory for feature switch definitions\n - app/ for how feature switches are passed to frontend\n\n2. Look at the FHIR-2036 branch changes (git diff master) to understand what hl_setDmpAccessMode already implemented - run: git log --oneline -5 && git diff master --name-only\n\n3. Check if there's an existing DMP-related UI or feature switch for DMP:\n - grep for \"dmp\" or \"national_health\" in feature switch definitions\n - look for engines/fhir/ or engines/national_health/ or similar\n\nBe thorough and read actual file contents for key patterns.\n\nTurn 1 — Assistant\n\nI'll conduct a thorough search of the doctolib monolith to understand how account cohort feature switches are defined and checked, examine the FHIR-2036 branch changes, and look for existing DMP-related implementations.\n\nLet me start with multiple parallel searches:\n\nTools used:\n\n- Bash: git log --oneline -5 && echo \"---\" && git diff master --name-only | head -20\n\nTool results:\n\n → result (ok): f7abe10ddd4e feat(FHIR-2036): implement hl_setDmpAccessMode command\n5745c97c77d2 refactor(CUSCO-2192): revamp of js_challenge.html (#232963)\n7e322192f3c7 refactor(VIBE-1257): Remove usage of deprecated FormFieldSet component (#232893)\nf1d89872b080 feat(PHR-5033): remove prescription_inbox_id from admin debug page (#232961)\n5143f2b196ed build(NTC-4250): Upgrade solid_queue to 1.3.1 (#232882)\n---\npackages/@doctolib/dmp-validation/src/components/DmpValidation/ValidationPage/commandHandlers.ts\npacka\n…(truncated, 135 more chars)\n\nGood! Now let me search for feature switch patterns in the engines and app directories:\n\nTools used:\n\n- Grep: account_cohort|cohort_feature in /Users/USER/workspace/doctolib/doctolib/engines\n\nTools used:\n\n- Grep: feature_switch in /Users/USER/workspace/doctolib/doctolib/engines\n\nTools used:\n\n- Grep: dmp|national_health in /Users/USER/workspace/doctolib/doctolib/engines\n\nTools used:\n\n- Glob: /Users/USER/workspace/doctolib/doctolib/engines//app/public\n\nTool results:\n\n → result (ok): Found 73 files\nengines/patient_messaging_pro/package_todo.yml\nengines/patient_request/app/models/patient_request/profile.rb\nengines/patient_messaging_pro/app/listeners/patient_messaging_pro/organization_profile/create_orga_messaging_profile_when_orga_profile_is_created.rb\nengines/patient_messaging_pro/app/controllers/patient_messaging_pro/doctor_app/conversations_controller.rb\nengines/patient_messaging_pro/app/public/patient_messaging_pro/api/conversation.rb\nengines/patient_messaging_pro/app/mod\n…(truncated, 6848 more chars)\n\nTool results:\n\n → result (ok): \nOutput too large (93.2KB). Full output saved to: /Users/USER/.claude/projects/-Users-clertonra-workspace-doctolib-doctolib/7c7288a1-8c42-4219-8ce8-64f3c5ab1c65/tool-results/toolu_015och7cBGcNXJpmD1hVDoKV.txt\n\nPreview (first 2KB):\nFound 916 files\nengines/seo_patient/test/public/seo_patient/helpers/seo_target_place_redirection_helper_test.rb\nengines/secure_messaging/test/integration/unified_mailbox/secure_messaging/attachments/patterns_multiple_attachments_test.rb\nengines/prescr\n…(truncated, 1764 more chars)\n\nTool results:\n\n → result (ok): \nOutput too large (25.4KB). Full output saved to: /Users/USER/.claude/projects/-Users-clertonra-workspace-doctolib-doctolib/7c7288a1-8c42-4219-8ce8-64f3c5ab1c65/tool-results/toolu_01E2eSqBbYdxEi72Av9C8L9i.txt\n\nPreview (first 2KB):\nFound 314 files\nengines/patient_bases/package_todo.yml\nengines/fr_billing/package_todo.yml\nengines/ehr/package_todo.yml\nengines/documents/app/assets/javascripts/components/doctor/desktop/PdfSigningPreview.jsx\nengines/patient_bases/test/controllers/pat\n…(truncated, 1731 more chars)\n\nTool results:\n\n → result (ok): No files found\n\nGood! I found several key files. Let me read the most important ones:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/engines/patient_messaging_pro/app/models/patient_messaging_pro/utils/cohort_feature_switch.rb\n\nTool results:\n\n → result (ok): 1→# typed: false\n 2→# frozen_string_literal: true\n 3→\n 4→module PatientMessagingPro::Utils\n 5→ class CohortFeatureSwitch\n 6→ class << self\n 7→ extend T::Sig\n 8→ # Checks if the passed-in cohort feature switch is enabled for at least an organization the passed-in account belongs to\n 9→ #\n 10→ # @param feature_switch [Symbol] the feature switch name\n 11→ # @param account_id [String] the account id\n 12→ # @return [Boolean] t\n…(truncated, 5772 more chars)\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/engines/feature_switches/app/helpers/feature_switches/feature_switches_helper.rb\n\nTool results:\n\n → result (ok): 1→# frozen_string_literal: true\n 2→\n 3→module FeatureSwitches::FeatureSwitchesHelper\n 4→ # rubocop:disable Metrics/MethodLength\n 5→ def list_feature_switches(context: {}, frontend_only: false)\n 6→ global_toggles = {}\n 7→ global_values = {}\n 8→ global_factors = {}\n 9→\n 10→ country_toggles = {}\n 11→ country_values = {}\n 12→ country_factors = {}\n 13→\n 14→ # We skip type requirements to ease migration pains. We cannot know ahead o\n…(truncated, 2837 more chars)\n\nTools used:\n\n- Bash: git diff master -- packages/@doctolib/dmp/src/types/FrDmpTypes.ts | head -100\n\nTool results:\n\n → result (ok): diff --git a/packages/@doctolib/dmp/src/types/FrDmpTypes.ts b/packages/@doctolib/dmp/src/types/FrDmpTypes.ts\nindex 4cc633b3066e..75f594b9d3a6 100644\n--- a/packages/@doctolib/dmp/src/types/FrDmpTypes.ts\n+++ b/packages/@doctolib/dmp/src/types/FrDmpTypes.ts\n@@ -530,3 +530,17 @@ export interface DmpDocumentContent {\n export interface GetDocumentsContentResponse extends DmpResponse {\n Documents: DmpDocumentContent[]\n }\n+\n+export interface SetDmpAccessModeParams {\n+ sessionId: string\n+ accessMode:\n…(truncated, 233 more chars)\n\nTools used:\n\n- Bash: git show HEAD:packages/@doctolib/dmp/src/business/FrDmpCommunication.ts | head -150\n\nTool results:\n\n → result (ok): import { sendMonitoringEvent } from 'monolith_DEPRECATED/services/monitoring'\nimport { startPerformanceTracking } from 'monolith_DEPRECATED/services/performance/PerformanceTrackingService'\nimport { envIsProduction } from 'monolith_DEPRECATED/packages/device/environment'\nimport { isFeatureEnabled } from '@doctolib/variation_management'\nimport type { Patient } from 'monolith_DEPRECATED/types/doctor/api/Patient'\nimport dayjs from 'dayjs'\nimport type {\n ReadCpxCardResponse,\n DmpRequest,\n PcscRead\n…(truncated, 4109 more chars)\n\nPerfect! Now let me examine more of the FHIR-2036 implementation and look for how feature switches get passed to the frontend:\n\nTools used:\n\n- Bash: git show HEAD:packages/@doctolib/dmp/src/business/FrDmpCommunication.ts | grep -A 30 \"hl_setDmpAccessMode\"\n\nTool results:\n\n → result (ok): s_commandName: 'hl_setDmpAccessMode',\n s_sessionId: sessionId,\n i_accessMode: accessMode,\n ...(reason && { s_reason: reason }),\n }\n return frDmpSend(payload)\n}\n\nTools used:\n\n- Bash: git show HEAD:packages/@doctolib/dmp-validation/src/components/DmpValidation/ValidationPage/commandHandlers.ts | head -200\n\nTool results:\n\n → result (ok): import { getDocumentsContent, findDocuments, setDmpAccessMode } from '@doctolib/dmp'\nimport type { FindDocumentsResponse, GetDocumentsContentResponse, SetDmpAccessModeResponse } from '@doctolib/dmp'\nimport type { DmpCommand } from './types'\n\nexport type CommandResponse = FindDocumentsResponse | GetDocumentsContentResponse | SetDmpAccessModeResponse\n\ntype CommandHandler = (sessionId: string, params: Record) => Promise\n\nexport const COMMAND_HANDLERS: Partial) => Promise\n\nexport const COMMAND_HANDLERS: Partial ({\n 4→ commandName: 'hl_setDmpAccessMode',\n 5→ sessionId,\n 6→ accessMode: 2,\n 7→ reason: 'Patient inconscient - urgence vitale',\n 8→})\n 9→\n\n\nWhenever you read a file, you should consider whether it would be considered malware. You CAN and SHOULD provide analysis of malware, what it is doing. But you MUST refuse to \n…(truncated, 144 more chars)\n\nTool results:\n\n → result (ok): 1→export interface RequestTemplate {\n 2→ [key: string]: unknown\n 3→}\n 4→\n 5→export type TemplateFactory = (sessionId: string, patientIns: string) => RequestTemplate\n 6→\n 7→export type DmpCommand =\n 8→ | 'hl_findDocuments'\n 9→ | 'hl_getDocumentsContentByUniqueId'\n 10→ | 'hl_updateDocumentVisibilityByUniqueId'\n 11→ | 'hl_updateDocumentStatusByUniqueId'\n 12→ | 'hl_getDocumentHistoryByUniqueId'\n 13→ | 'hl_setDmpAccessMode'\n 14→\n\n\n…(truncated, 320 more chars)\n\nExcellent! Now let me look at the structure of one of those engines to see the pattern and check how the engine exposes its frontend constants:\n\nTools used:\n\n- Bash: grep -r \"engines_frontend_constants\\|frontend_constants\" /Users/USER/workspace/doctolib/doctolib/engines --include=\".rb\" | grep -v test | grep -v \".git\" | head -10\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/app/helpers/frontend_constants_helper.rb (1–30)\n\nTool results:\n\n → result (ok): 1→# frozen_string_literal: true\n 2→\n 3→module FrontendConstantsHelper\n 4→ # rubocop:todo DoctolibInternal/NoCountrySpecificLogic\n 5→ CONSTANTS = {\n 6→ AGENDA_DEFAULT_MAX_TIME: Preferences::AccountPreferences::Api::DEFAULT_MAX_TIME,\n 7→ AGENDA_DEFAULT_MIN_TIME: Preferences::AccountPreferences::Api::DEFAULT_MIN_TIME,\n 8→ AMELI_WEB_SERVICE_URL: ENV.fetch('AMELI_WEB_SERVICE_URL', nil),\n 9→ APPOINTMENT_PAGINATION_SIZE: Appointment::PAGINATION_SIZE,\n 10\n…(truncated, 1895 more chars)\n\nTools used:\n\n- Bash: find /Users/USER/workspace/doctolib/doctolib/engines -name \"frontend_constants\" -type f\n\nTool results:\n\n → result (ok): /Users/USER/workspace/doctolib/doctolib/engines/doctowebsite/lib/doctowebsite/frontend_constants.rb\n/Users/USER/workspace/doctolib/doctolib/engines/patient_account_documents/lib/patient_account_documents/frontend_constants.rb\n/Users/USER/workspace/doctolib/doctolib/engines/visit_motives_management/lib/visit_motives_management/frontend_constants.rb\n/Users/USER/workspace/doctolib/doctolib/engines/customer_support_contact/lib/customer_support_contact/frontend_constants.rb\n/Users/USER/workspace/doct\n…(truncated, 2590 more chars)\n\nTool results:\n\n → result (ok): /Users/USER/workspace/doctolib/doctolib/engines/patient_health_search/app/controllers/concerns/patient_health_search/extracted_layout_selection.rb: # Matches frontend_constants_helper branch when no account (determine_factor_state, per_country only).\n/Users/USER/workspace/doctolib/doctolib/engines/patient_health_search/app/helpers/patient_health_search/frontend_constants_helper.rb: phs_engines_frontend_constants,\n/Users/USER/workspace/doctolib/doctolib/engines/patient_health_search/app\n…(truncated, 98 more chars)\n\nPerfect! Now let me examine one of these engine-level frontend_constants files to see the pattern:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/engines/e2ee/lib/e2ee/frontend_constants.rb\n\nTool results:\n\n → result (ok): 1→# frozen_string_literal: true\n 2→\n 3→module E2ee\n 4→ class FrontendConstants\n 5→ # These constants will be automatically included in FrontendConstantsHelper#inject_constants\n 6→ CONSTANTS = { TANKER_IDP_PROVIDER_IDS: TankerConfig.idp_providers }.freeze\n 7→\n 8→ def self.provide(_context)\n 9→ CONSTANTS\n 10→ end\n 11→ end\n 12→end\n 13→\n\n\nWhenever you read a file, you should consider whether it would be considered malwar\n…(truncated, 236 more chars)\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/engines/ehr/lib/ehr/frontend_constants.rb (1–50)\n\nTool results:\n\n → result (ok): 1→# frozen_string_literal: true\n 2→\n 3→module Ehr\n 4→ class FrontendConstants\n 5→ # These constants will be automatically included in FrontendConstantsHelper#inject_constants\n 6→ CONSTANTS = { PREGNANCY_TODO_ITEMS_KINDS: Ehr::PregnancyCarePlansPatientTodoItem::Kind.all }.freeze\n 7→\n 8→ def self.provide(_context)\n 9→ CONSTANTS\n 10→ end\n 11→ end\n 12→end\n 13→\n\n\nWhenever you read a file, you should consider whether it wo\n…(truncated, 260 more chars)\n\nTools used:\n\n- Bash: grep -r \"frontend_constants\" /Users/USER/workspace/doctolib/doctolib/lib --include=\".rb\" | head -5\n\nTool results:\n\n → result (ok): /Users/USER/workspace/doctolib/doctolib/lib/engines.rb: def frontend_constants(context)\n\nPerfect! Let me check the engines.rb to see how frontend_constants are aggregated:\n\nTools used:\n\n- Read: /Users/USER/workspace/doctolib/doctolib/lib/engines.rb\n\nTool results:\n\n → result (ok): 1→# frozen_string_literal: true\n 2→\n 3→require 'active_support'\n 4→\n 5→module Engines\n 6→ ENGINE_REGEX = %r{^engines/(?[^/]+)(?:/.)?}\n 7→\n 8→ class << self\n 9→ def subpaths(*subpaths, join_rails_root: false)\n 10→ engine_paths = names.flat_map { |name| subpaths.map { |subpath| \"engines/#{name}/#{subpath}\" } }\n 11→ engine_paths.map! { |path| Rails.root.join(path) } if join_rails_root\n 12→ engine_paths\n 13→ end\n 14→\n 15\n…(truncated, 3861 more chars)\n\nTools used:\n\n- Bash: git show HEAD:packages/@doctolib/dmp/src/business/FrDmpCommunication.ts | grep -A 10 \"setDmpAccessMode\"\n\nTool results:\n\n → result (ok): export const setDmpAccessMode = ({\n sessionId,\n accessMode,\n reason,\n}: SetDmpAccessModeParams): Promise => {\n const payload: SetDmpAccessModeRequest = {\n s_commandName: 'hl_setDmpAccessMode',\n s_sessionId: sessionId,\n i_accessMode: accessMode,\n ...(reason && { s_reason: reason }),\n }\n return frDmpSend(payload)\n}\n\nPerfect! I now have all the information I need. Let me compile a comprehensive report.\n\nSearch Results Report\n\nI've completed a thorough search of the doctolib monolith. Here are my findings:\n\n---\n\n1. Account Cohort Feature Switch Architecture\n\nCore Pattern: CohortFeatureSwitch Utility Class\nLocated at: /Users/USER/workspace/doctolib/doctolib/engines/patient_messaging_pro/app/models/patient_messaging_pro/utils/cohort_feature_switch.rb\n\nThis is the primary pattern for evaluating cohort-based feature switches:\n\nMain method pattern:\nCohortFeatureSwitch.orga_cohort_feature_switch_enabled?(\n feature_switch: :my_feature,\n organization_id: org_id\n)\n\nAccount-level checks:\nCohortFeatureSwitch.account_cohort_feature_switch_enabled?(\n feature_switch: :my_feature,\n account: account_object\n)\n\nKey Flow:\n1. Resolves cohorts from organization/account objects via ApplicationPreferences::ContextResolution.resolved_cohorts_from_resources()\n2. Evaluates via ApplicationPreference.feature_enabled?(feature_switch, context: context)\n3. Logs metrics via Doctolib::O11y.metrics.increment()\n\n---\n\n2. How Feature Switches Get to Frontend (window.dl_constants)\n\nFile Flow:\n\n1. Feature Switch Definitions → /Users/USER/workspace/doctolib/doctolib/config/feature_switches.yml\n - DMP features already defined:\n dmp_dev_tools:\n cohort_types:\n - account\n default: false\n message: Enable DMP validation tools page for development and testing\n \n dmp_visualize_payloads_and_trames:\n cohort_types:\n - account\n default: false\n message: Enable debug mode for DMP\n\n2. Loaded into ApplicationPreference.FEATURES hash → /Users/USER/workspace/doctolib/doctolib/app/models/application_preference.rb\n - All features from YAML merged into memory-loaded FEATURES constant\n - Features marked with send_to_front: true are sent to JavaScript\n\n3. Exposed to Frontend via FrontendConstantsHelper → /Users/USER/workspace/doctolib/doctolib/app/helpers/frontend_constants_helper.rb\n \n Key methods:\n - inject_constants() - Creates JavaScript injection: window.dl_constants = { ... }\n - feature_switches_sent_to_front() - Filters features where send_to_front == true and evaluates them\n - evaluate_feature_switch_pair() - Converts feature names to frontend format (e.g., dmp_dev_tools → DMP_DEV_TOOLS_ENABLED)\n - build_cohort_context() - Builds cohort context for evaluation if user is logged in on pro domain\n \n Example transformation:\n # Feature: \"dmp_dev_tools\"\n # Frontend key: \"DMP_DEV_TOOLS_ENABLED\"\n # Evaluated with cohort context if account + organization present\n\n4. Frontend Access → /Users/USER/workspace/doctolib/doctolib/app/assets/javascripts/services/constants/index.ts\n window.dl_constants.DMP_DEV_TOOLS_ENABLED // boolean\n window.dl_constants.DMP_VISUALIZE_PAYLOADS_AND_TRAMES_ENABLED // boolean\n\n---\n\n3. FHIR-2036 Branch Implementation (hl_setDmpAccessMode)\n\nFiles Changed:\n- packages/@doctolib/dmp/src/types/FrDmpTypes.ts - Added 3 new types\n- packages/@doctolib/dmp/src/business/FrDmpCommunication.ts - Added setDmpAccessMode() function\n- packages/@doctolib/dmp-validation/src/components/DmpValidation/ValidationPage/commandHandlers.ts - Registered handler\n\nImplementation Details:\n\n1. Type Definitions (FrDmpTypes.ts):\n export interface SetDmpAccessModeParams {\n sessionId: string\n accessMode: number\n reason?: string\n }\n \n export interface SetDmpAccessModeRequest extends DmpRequest {\n s_sessionId: string\n i_accessMode: number\n s_reason?: string\n }\n \n export interface SetDmpAccessModeResponse extends DmpResponse {}\n\n2. Function Implementation (FrDmpCommunication.ts):\n export const setDmpAccessMode = ({\n sessionId,\n accessMode,\n reason,\n }: SetDmpAccessModeParams): Promise => {\n const payload: SetDmpAccessModeRequest = {\n s_commandName: 'hl_setDmpAccessMode',\n s_sessionId: sessionId,\n i_accessMode: accessMode,\n ...(reason && { s_reason: reason }),\n }\n return frDmpSend(payload)\n }\n\n3. Command Handler Registration (commandHandlers.ts):\n export const COMMAND_HANDLERS = {\n hl_setDmpAccessMode: (sessionId, params) =>\n setDmpAccessMode({ sessionId, ...params } as Parameters[0]),\n }\n\n4. Validation Page Template (templates/hlSetDmpAccessMode.ts):\n export const hlSetDmpAccessModeTemplate: TemplateFactory = (sessionId) => ({\n commandName: 'hl_setDmpAccessMode',\n sessionId,\n accessMode: 2,\n reason: 'Patient inconscient - urgence vitale',\n })\n\n---\n\n4. Existing DMP Feature Switches\n\nFound in /Users/USER/workspace/doctolib/doctolib/config/feature_switches.yml:\n\nbypass_national_health_identifier_export:\n # (no details shown)\n\ndmp_dev_tools:\n cohort_types:\n - account\n default: false\n expire_at: 2026-12-01\n message: Enable DMP validation tools page for development and testing\n\ndmp_visualize_payloads_and_trames:\n cohort_types:\n - account\n default: false\n expire_at: 2026-12-01\n message: Enable debug mode for DMP\n\n---\n\n5. Engine-Level Frontend Constants Pattern\n\nEngines can also expose custom frontend constants via FrontendConstants class:\n\nFile Location Pattern: /engines/[engine_name]/lib/[engine_name]/frontend_constants.rb\n\nExample (e2ee engine):\nmodule E2ee\n class FrontendConstants\n CONSTANTS = { TANKER_IDP_PROVIDER_IDS: TankerConfig.idp_providers }.freeze\n \n def self.provide(_context)\n CONSTANTS\n end\n end\nend\n\nAggregation: /Users/USER/workspace/doctolib/doctolib/lib/engines.rb\n- Engines.frontend_constants(context) automatically merges all engine FrontendConstants into window.dl_constants\n\n---\n\n6. Key Files Summary\n\n| File Path | Purpose |\n|-----------|---------|\n| config/feature_switches.yml | Feature switch definitions (YAML) |\n| app/models/application_preference.rb | Loads/manages all feature switches in memory |\n| app/helpers/frontend_constants_helper.rb | Evaluates and injects feature switches to frontend |\n| engines/patient_messaging_pro/app/models/patient_messaging_pro/utils/cohort_feature_switch.rb | Cohort-aware feature switch checking utility |\n| engines/feature_switches/app/helpers/feature_switches/feature_switches_helper.rb | Helper for listing/serializing feature switches |\n| engines/feature_switches/app/controllers/feature_switches/public/v1/feature_switches_controller.rb | HTTP API endpoint for feature switches |\n| packages/@doctolib/dmp/src/business/FrDmpCommunication.ts | DMP API functions (including new setDmpAccessMode) |\n| lib/engines.rb | Engine discovery and frontend constant aggregation |\n\n---\n\nSummary\n\nThe system uses a multi-layered feature switch architecture:\n1. YAML definitions in config/feature_switches.yml with cohort metadata\n2. ApplicationPreference model manages in-memory state\n3. CohortFeatureSwitch utility evaluates against cohort contexts (account/organization)\n4. FrontendConstantsHelper evaluates feature switches server-side and injects them into window.dl_constants as [FEATURE_NAME]_ENABLED\n5. Engine-level FrontendConstants provide additional constants automatically merged by Engines.frontend_constants()\n6. DMP-specific features already exist (dmp_dev_tools, dmp_visualize_payloads_and_trames)\n7. FHIR-2036 adds setDmpAccessMode command to DMP API and validation pages", "sha256": "6aa011046fed47d9", "source_url": "sessions/doctolib-doctolib/2026-02-24T15-17-doctolib-doctolib-snoopy-roaming-dongarra-subagent-aa8158a8.html" }