Review ledger
Per-folder review tracker, regenerated by python _tools/gen_ledger.py.
Existing Status values are preserved across regenerations - edit them as you
review, and they will survive.
1067 files - 207,028 lines - 0 files off-style - 0 stubs.
Status values: todo - in progress - done - pruned. Phase numbers refer to PLAN.md.
| Folder | Files | Lines | Interview-angle | Off-style | Flags | Phase | Status |
|---|---|---|---|---|---|---|---|
ai_ml/ |
1 | 33 | 0 | 0 | - | 3 | todo |
ai_ml/00_math_foundations/ |
5 | 504 | 4 | 0 | - | 3 | todo |
ai_ml/01_ml_foundations/ |
7 | 685 | 6 | 0 | - | 3 | todo |
ai_ml/02_classical_ml/ |
10 | 1,140 | 9 | 0 | - | 3 | todo |
ai_ml/03_feature_engineering/ |
7 | 847 | 6 | 0 | - | 3 | todo |
ai_ml/04_model_evaluation/ |
7 | 701 | 6 | 0 | - | 3 | todo |
ai_ml/05_deep_learning/ |
8 | 825 | 7 | 0 | - | 3 | todo |
ai_ml/06_transformers_llm/ |
11 | 1,606 | 10 | 0 | - | 3 | todo |
ai_ml/07_training_finetuning/ |
6 | 732 | 5 | 0 | - | 3 | todo |
ai_ml/08_inference_serving/ |
5 | 676 | 4 | 0 | - | 3 | todo |
ai_ml/09_rag_embeddings/ |
9 | 3,287 | 9 | 0 | - | 3 | todo |
ai_ml/10_agents_orchestration/ |
14 | 2,846 | 13 | 0 | - | 3 | todo |
ai_ml/11_mcp/ |
5 | 453 | 4 | 0 | - | 3 | todo |
ai_ml/12_context_engineering/ |
2 | 378 | 2 | 0 | - | 3 | todo |
ai_ml/13_evaluation/ |
5 | 449 | 4 | 0 | - | 3 | todo |
ai_ml/14_guardrails_safety/ |
4 | 348 | 3 | 0 | - | 3 | todo |
ai_ml/15_mlops_llmops/ |
4 | 350 | 3 | 0 | - | 3 | todo |
ai_ml/16_ml_frameworks/ |
7 | 1,332 | 6 | 0 | - | 3 | todo |
ai_ml/17_ml_system_design/ |
4 | 357 | 3 | 0 | - | 3 | todo |
ai_ml/18_speech_and_realtime/ |
3 | 166 | 2 | 0 | - | 3 | todo |
backend/ |
1 | 22 | 0 | 0 | - | 5 | todo |
backend/01_theory_foundations/ |
7 | 2,475 | 7 | 0 | - | 4 | todo |
backend/02_python_core/ |
35 | 4,709 | 35 | 0 | - | 4 | todo |
backend/02_python_core/packaging/ |
4 | 467 | 4 | 0 | - | 4 | todo |
backend/02_python_core/performance/ |
6 | 837 | 6 | 0 | - | 4 | todo |
backend/02_python_core/stdlib/ |
8 | 1,393 | 8 | 0 | - | 4 | todo |
backend/02_python_core/tricky_questions/ |
48 | 5,283 | 48 | 0 | - | 4 | todo |
backend/02_python_core/typing/ |
7 | 766 | 7 | 0 | - | 4 | todo |
backend/03_python_oop/ |
10 | 5,048 | 10 | 0 | - | 4 | todo |
backend/04_async_concurrency/ |
18 | 4,190 | 17 | 0 | - | 4 | todo |
backend/05_testing/integration/ |
1 | 114 | 1 | 0 | - | 4 | todo |
backend/05_testing/pytest/ |
10 | 1,460 | 9 | 0 | - | 4 | todo |
backend/05_testing/qa_engineering/ |
3 | 211 | 2 | 0 | - | 4 | todo |
backend/05_testing/strategy/ |
4 | 421 | 4 | 0 | - | 4 | todo |
backend/06_web_frameworks/ |
1 | 189 | 1 | 0 | - | 5 | todo |
backend/06_web_frameworks/aiohttp/ |
4 | 981 | 4 | 0 | - | 5 | todo |
backend/06_web_frameworks/django/ |
14 | 4,434 | 13 | 0 | - | 5 | todo |
backend/06_web_frameworks/django/django_orm/ |
3 | 2,138 | 3 | 0 | - | 5 | todo |
backend/06_web_frameworks/django/drf/ |
16 | 2,618 | 16 | 0 | - | 5 | todo |
backend/06_web_frameworks/fastapi/ |
16 | 6,391 | 16 | 0 | - | 5 | todo |
backend/06_web_frameworks/flask/ |
1 | 108 | 1 | 0 | - | 5 | todo |
backend/06_web_frameworks/litestar/ |
1 | 64 | 1 | 0 | - | 5 | todo |
backend/06_web_frameworks/pydantic/ |
3 | 303 | 3 | 0 | - | 5 | todo |
backend/06_web_frameworks/streamlit/ |
9 | 1,766 | 9 | 0 | - | 5 | todo |
backend/07_rest_apis/ |
9 | 1,454 | 9 | 0 | - | 5 | todo |
backend/08_databases/ |
2 | 235 | 2 | 0 | - | 5 | todo |
backend/08_databases/nosql/ |
2 | 131 | 1 | 0 | - | 5 | todo |
backend/08_databases/nosql/cassandra/ |
1 | 211 | 1 | 0 | - | 5 | todo |
backend/08_databases/nosql/elasticsearch/ |
6 | 1,528 | 6 | 0 | - | 5 | todo |
backend/08_databases/nosql/mongodb/ |
6 | 1,362 | 6 | 0 | - | 5 | todo |
backend/08_databases/sql/ |
23 | 3,455 | 23 | 0 | - | 5 | todo |
backend/08_databases/sql/sqlalchemy/ |
15 | 3,650 | 14 | 0 | - | 5 | todo |
backend/09_caching/redis/ |
4 | 1,501 | 3 | 0 | - | 5 | todo |
backend/09_caching/valkey/ |
1 | 55 | 1 | 0 | - | 5 | todo |
backend/10_message_queues/ |
1 | 91 | 1 | 0 | - | 5 | todo |
backend/10_message_queues/celery/ |
8 | 1,859 | 7 | 0 | - | 5 | todo |
backend/10_message_queues/ibm_mq/ |
1 | 259 | 1 | 0 | - | 5 | todo |
backend/10_message_queues/kafka/ |
5 | 1,278 | 4 | 0 | - | 5 | todo |
backend/10_message_queues/rabbitmq/ |
5 | 769 | 4 | 0 | - | 5 | todo |
backend/10_message_queues/rq/ |
1 | 88 | 1 | 0 | - | 5 | todo |
backend/10_message_queues/stream_processing/ |
1 | 226 | 1 | 0 | - | 5 | todo |
backend/10_message_queues/temporal/ |
4 | 834 | 4 | 0 | - | 5 | todo |
backend/11_authentication/ |
3 | 560 | 3 | 0 | - | 5 | todo |
backend/11_authentication/jwt/ |
9 | 1,905 | 8 | 0 | - | 5 | todo |
backend/11_authentication/sso/ |
13 | 3,228 | 12 | 0 | - | 5 | todo |
backend/12_protocols/ |
1 | 126 | 1 | 0 | - | 5 | todo |
backend/12_protocols/graphql/ |
8 | 2,356 | 8 | 0 | - | 5 | todo |
backend/12_protocols/grpc/ |
8 | 2,184 | 8 | 0 | - | 5 | todo |
backend/12_protocols/http/ |
3 | 298 | 3 | 0 | - | 5 | todo |
backend/12_protocols/nginx/ |
14 | 3,482 | 14 | 0 | - | 5 | todo |
backend/12_protocols/soap/ |
6 | 1,247 | 5 | 0 | - | 5 | todo |
backend/12_protocols/sse/ |
1 | 258 | 1 | 0 | - | 5 | todo |
backend/12_protocols/websockets/ |
8 | 2,068 | 7 | 0 | - | 5 | todo |
backend/13_architecture_design/ |
20 | 3,782 | 20 | 0 | - | 5 | todo |
backend/14_microservices/ |
10 | 1,458 | 9 | 0 | - | 5 | todo |
backend/15_observability/ |
13 | 2,984 | 13 | 0 | - | 6 | todo |
backend/16_docker/ |
9 | 3,608 | 9 | 0 | - | 6 | todo |
backend/17_kubernetes/ |
9 | 1,595 | 8 | 0 | - | 6 | todo |
backend/18_iac/ |
2 | 161 | 2 | 0 | - | 6 | todo |
backend/18_iac/terraform/ |
7 | 698 | 6 | 0 | - | 6 | todo |
backend/19_cloud_aws/ |
1 | 203 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Analytics/ |
1 | 12 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Analytics/01_Glue_ETL_Service/ |
1 | 96 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Analytics/01_Redshift_Data_Warehouse/ |
1 | 86 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Analytics/02_Amazon_Kinesis/ |
1 | 104 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Analytics/03_Amazon_Athena/ |
1 | 106 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Application_Integration/ |
1 | 12 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Application_Integration/01_SNS_Simple_Notification_Service/ |
1 | 1,073 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Application_Integration/02_SQS_Simple_Queue_Service/ |
2 | 335 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Application_Integration/03_Amazon_EventBridge/ |
1 | 223 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Application_Integration/04_AWS_Step_Functions/ |
1 | 205 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Cloud_Financial_Management/ |
1 | 9 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Cloud_Financial_Management/03_AWS_Cost_Explorer/ |
1 | 1,094 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Compute/ |
1 | 12 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Compute/01_Compare_AWS_Compute_Services/ |
1 | 113 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Compute/02_Amazon_EC2/ |
1 | 89 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Compute/10_AWS_Fargate/ |
1 | 170 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Compute/11_AWS_Lambda/ |
1 | 252 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Containers/ |
1 | 11 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Containers/01_Amazon_Elastic_Container_Registry/ |
1 | 200 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Containers/02_Amazon_Elastic_Container_Service/ |
2 | 388 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Containers/03_Amazon_Elastic_Kubernetes_Service/ |
1 | 177 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Databases/ |
1 | 12 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Databases/01_Amazon_Aurora/ |
2 | 228 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Databases/02_Amazon_DynamoDB/ |
1 | 234 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Databases/03_Amazon_ElastiCache/ |
2 | 299 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Databases/04_Amazon_Relational_Database_Service/ |
1 | 133 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Developer_Tools/ |
1 | 9 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Developer_Tools/03_AWS_CodeBuild/ |
1 | 98 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Management_and_Governance/ |
1 | 12 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Management_and_Governance/01_AWS_Auto_Scaling/ |
1 | 266 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Management_and_Governance/02_AWS_CloudFormation/ |
1 | 291 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Management_and_Governance/03_Amazon_CloudWatch/ |
2 | 497 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Management_and_Governance/04_AWS_Systems_Manager_Parameter_Store/ |
1 | 142 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Networking_and_Content_Delivery/ |
1 | 13 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Networking_and_Content_Delivery/01_Amazon_API_Gateway/ |
2 | 692 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Networking_and_Content_Delivery/02_Amazon_CloudFront/ |
1 | 361 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Networking_and_Content_Delivery/03_Amazon_VPC/ |
2 | 503 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Networking_and_Content_Delivery/04_Elastic_Load_Balancing/ |
1 | 396 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Networking_and_Content_Delivery/05_Amazon_Route_53/ |
1 | 102 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Security_Identity_and_Compliance/ |
1 | 12 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Security_Identity_and_Compliance/01_Amazon_Cognito/ |
1 | 378 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Security_Identity_and_Compliance/02_AWS_Identity_and_Access_Management/ |
2 | 561 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Security_Identity_and_Compliance/03_AWS_Secrets_Manager/ |
2 | 510 | 2 | 0 | - | 6 | todo |
backend/19_cloud_aws/Security_Identity_and_Compliance/04_AWS_Key_Management_Service/ |
1 | 153 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Storage/ |
1 | 14 | 0 | 0 | - | 6 | todo |
backend/19_cloud_aws/Storage/01_AWS_Backup/ |
1 | 389 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Storage/02_Amazon_Elastic_Block_Store/ |
1 | 372 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Storage/03_Amazon_Elastic_File_System/ |
1 | 375 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Storage/04_Amazon_File_Cache/ |
1 | 374 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Storage/05_Amazon_Simple_Storage_Service/ |
1 | 238 | 1 | 0 | - | 6 | todo |
backend/19_cloud_aws/Storage/06_AWS_Storage_Gateway/ |
1 | 375 | 1 | 0 | - | 6 | todo |
backend/20_cloud_azure/ |
1 | 68 | 1 | 0 | - | 6 | todo |
backend/21_cloud_gcp/ |
3 | 196 | 2 | 0 | - | 6 | todo |
backend/22_git/ |
15 | 2,624 | 15 | 0 | - | 6 | todo |
backend/23_linux_bash/ |
15 | 3,592 | 15 | 0 | - | 6 | todo |
backend/24_dsa/ |
2 | 275 | 1 | 0 | - | 5 | todo |
backend/24_dsa/01_arrays_strings/ |
3 | 360 | 3 | 0 | - | 5 | todo |
backend/24_dsa/02_hashmaps_sets/ |
1 | 141 | 1 | 0 | - | 5 | todo |
backend/24_dsa/03_linked_lists/ |
1 | 171 | 1 | 0 | - | 5 | todo |
backend/24_dsa/04_trees/ |
2 | 378 | 2 | 0 | - | 5 | todo |
backend/24_dsa/05_graphs/ |
2 | 406 | 2 | 0 | - | 5 | todo |
backend/24_dsa/06_dp/ |
2 | 352 | 2 | 0 | - | 5 | todo |
backend/24_dsa/07_recursion_backtracking/ |
1 | 229 | 1 | 0 | - | 5 | todo |
backend/24_dsa/08_sorting_searching/ |
1 | 173 | 1 | 0 | - | 5 | todo |
backend/24_dsa/09_python_specific/ |
1 | 245 | 1 | 0 | - | 5 | todo |
backend/24_dsa/10_stacks_queues/ |
1 | 129 | 1 | 0 | - | 5 | todo |
backend/24_dsa/11_intervals/ |
1 | 124 | 1 | 0 | - | 5 | todo |
backend/24_dsa/12_greedy_and_bits/ |
1 | 140 | 1 | 0 | - | 5 | todo |
backend/25_security/ |
10 | 1,963 | 10 | 0 | - | 5 | todo |
backend/26_code_quality/ |
6 | 605 | 6 | 0 | - | 6 | todo |
backend/27_cicd/ |
8 | 2,680 | 8 | 0 | - | 6 | todo |
backend/28_networking/ |
17 | 2,304 | 16 | 0 | - | 5 | todo |
backend/29_data_engineering/01_spark_databricks/ |
2 | 614 | 2 | 0 | - | 5 | todo |
backend/29_data_engineering/02_pandas/ |
3 | 684 | 3 | 0 | - | 5 | todo |
backend/29_data_engineering/03_polars/ |
1 | 266 | 1 | 0 | - | 5 | todo |
backend/29_data_engineering/04_parquet/ |
1 | 239 | 1 | 0 | - | 5 | todo |
backend/29_data_engineering/05_delta_lake/ |
1 | 268 | 1 | 0 | - | 5 | todo |
backend/29_data_engineering/06_data_architecture/ |
4 | 254 | 3 | 0 | - | 5 | todo |
backend/30_quant_fintech/ |
9 | 659 | 8 | 0 | - | 5 | todo |
backend/31_healthcare_regulated/ |
5 | 365 | 4 | 0 | - | 5 | todo |
behavioral/ |
16 | 1,164 | 16 | 0 | - | 8 | todo |
claude_certification/ |
1 | 49 | 0 | 0 | - | 8 | todo |
claude_certification/01_agentic_architecture_orchestration/ |
1 | 55 | 1 | 0 | - | 8 | todo |
claude_certification/02_tool_design_and_mcp/ |
1 | 72 | 1 | 0 | - | 8 | todo |
claude_certification/03_claude_code_config_workflows/ |
1 | 77 | 1 | 0 | - | 8 | todo |
claude_certification/04_prompt_engineering_structured_output/ |
1 | 76 | 1 | 0 | - | 8 | todo |
claude_certification/05_context_management_reliability/ |
1 | 64 | 1 | 0 | - | 8 | todo |
claude_certification/06_scenarios/ |
1 | 64 | 1 | 0 | - | 8 | todo |
claude_certification/07_resources/ |
1 | 76 | 1 | 0 | - | 8 | todo |
frontend/ |
1 | 30 | 0 | 0 | - | 7 | todo |
frontend/01_html/ |
4 | 764 | 4 | 0 | - | 7 | todo |
frontend/02_css/ |
5 | 1,230 | 5 | 0 | - | 7 | todo |
frontend/03_javascript_core/ |
14 | 5,797 | 13 | 0 | - | 7 | todo |
frontend/03_javascript_core/async_js/ |
3 | 508 | 3 | 0 | - | 7 | todo |
frontend/04_typescript/ |
11 | 1,875 | 10 | 0 | - | 7 | todo |
frontend/05_react/ |
30 | 13,465 | 29 | 0 | - | 7 | todo |
frontend/06_vue/ |
25 | 3,704 | 24 | 0 | - | 7 | todo |
frontend/07_state_managers/ |
5 | 401 | 4 | 0 | - | 7 | todo |
frontend/07_state_managers/mobx/ |
1 | 95 | 1 | 0 | - | 7 | todo |
frontend/07_state_managers/redux/ |
11 | 1,549 | 11 | 0 | - | 7 | todo |
frontend/08_component_libraries/ |
5 | 340 | 4 | 0 | - | 7 | todo |
frontend/08_component_libraries/MaterialUI/ |
3 | 1,807 | 3 | 0 | - | 7 | todo |
frontend/08_component_libraries/Tailwind/ |
2 | 1,046 | 2 | 0 | - | 7 | todo |
frontend/09_build_tools/ |
9 | 1,470 | 8 | 0 | - | 7 | todo |
frontend/10_testing/ |
11 | 2,235 | 10 | 0 | - | 7 | todo |
frontend/11_apis_data_fetching/ |
10 | 1,508 | 10 | 0 | - | 7 | todo |
frontend/12_project_structure/ |
7 | 1,420 | 6 | 0 | - | 7 | todo |
frontend/13_es_features/ |
9 | 1,773 | 8 | 0 | - | 7 | todo |
frontend/14_frontend_system_design/ |
10 | 1,662 | 9 | 0 | - | 7 | todo |
frontend/15_performance/ |
11 | 2,035 | 10 | 0 | - | 7 | todo |
frontend/16_accessibility/ |
8 | 598 | 7 | 0 | - | 7 | todo |
frontend/17_security/ |
9 | 1,650 | 8 | 0 | - | 7 | todo |
frontend/18_browser_internals/ |
10 | 2,292 | 9 | 0 | - | 7 | todo |
frontend/19_rendering_modes/ |
8 | 1,509 | 7 | 0 | - | 7 | todo |
methodologies/ |
9 | 1,351 | 8 | 0 | - | 8 | todo |
practical_cases/ |
3 | 508 | 3 | 0 | - | 8 | todo |
system_design/ |
1 | 26 | 0 | 0 | - | 8 | todo |
system_design/01_api_integrations/ |
4 | 714 | 4 | 0 | - | 8 | todo |
system_design/01_api_integrations/_answer_examples/ |
1 | 113 | 1 | 0 | - | 8 | todo |
system_design/01_api_integrations/_int_format/ |
2 | 201 | 2 | 0 | - | 8 | todo |
system_design/02_resilience/ |
5 | 530 | 4 | 0 | - | 8 | todo |
system_design/03_async_patterns/ |
1 | 134 | 1 | 0 | - | 8 | todo |
system_design/04_secrets_config/ |
1 | 111 | 1 | 0 | - | 8 | todo |
system_design/05_observability/ |
1 | 113 | 1 | 0 | - | 8 | todo |
system_design/06_design_framework/ |
3 | 398 | 3 | 0 | - | 8 | todo |
system_design/07_worked_designs/ |
8 | 874 | 8 | 0 | - | 8 | todo |
system_design/08_scaling_building_blocks/ |
3 | 230 | 2 | 0 | - | 8 | todo |
techcheck/ |
3 | 384 | 0 | 0 | - | - | todo |
techcheck/mint_tech_check/ |
2 | 281 | 0 | 0 | - | - | todo |
Column meanings
- Interview-angle - files containing an
## Interview anglesection, the senior-style marker. Should equal Files when the folder is done. - Off-style - files still using legacy
**Answer:**Q&A blocks or emoji headers. Should be 0 when the folder is done. - Flags - what needs attention: stubs to fill or delete, style to rewrite.
- Phase - which PLAN.md phase covers this folder.