Question library
Explained questions for the decisions developers make.
How do I secure it?
Map every trust boundary: UI, uploads, parser, retrieval, memory, provider, tools, business APIs, caches, and traces. Minimize information and authority, enforce tenant/object/action checks, constrain egress, validate schemas and rules, and test adversarial…
How much does it cost?
Count every model/tool call, embedding/reranking, infrastructure, retries, and review workload. Optimize cost per successful task subject to quality and privacy constraints. Use context selection, templates, smaller models, caching, batching, and strict agent…
Stable concepts, framework concepts, and changing APIs
Stable concepts, framework concepts, and changing APIs
Core vocabulary
Use this after studying the full explanations. Spend 10 minutes on vocabulary, 10 on RAG and agents, 10 on security/workflows/evaluation, and 10–30 on the insurance design and scenario answers.
RAG revision
Ingestion: approved source → secure parse/OCR → coherent chunks + metadata → embeddings → complete published index.
Cost, multimodal, and deployment
Cost formula: input tokens × input rate + output tokens × output rate + tools/retrieval/embedding/infrastructure/review, with applicable caching and provider accounting. Prices must be checked for the real provider/model/account.
.NET DSA fundamentals
Common .NET collections
Reusable Engine vs. Application
Another useful architectural distinction is between a workflow engine and the application that uses it.
Challenges and Practical Lessons
Keep the LLM's responsibility narrow
A Practical Implementation Checklist
Understand the architecture, its boundaries, and the practical engineering trade-offs.
Difficulty is an editorial estimate. Completion means you chose to mark a question as understood.