# Agentic Design > Source: > Published: 2026-07-29 22:13:46+00:00 ### Choose an architecture Start from the problem, then compare patterns, trade-offs, implementation techniques and concrete use cases. [Explore the catalog](/patterns) A free architecture catalog for AI builders Move from an architecture question to an implementation plan with a connected library of agent patterns, techniques, use cases and interactive examples. Go Pro when you need guided practice and compute-backed tools. No account or payment details required to browse the catalog. A practical path From constraint to design Frame the requirement Reliability, latency, cost or safety Compare relevant patterns Mechanism, trade-offs and use cases Inspect implementation options Techniques and interactive examples Practice and evaluate Learning paths and Pro labs when needed These counts are generated from the current product data and rounded down. 280+ Patterns 280+ Techniques 900+ Use cases 280+ Interactive demos Built for the work around the model Useful for AI engineers, architects and technical leads choosing how an agent should reason, use tools and fail safely. Start from the problem, then compare patterns, trade-offs, implementation techniques and concrete use cases. Follow structured learning journeys with theory, quizzes and practical challenges. Each journey has a free opening chapter. Use the Prompt Optimizer, Eval Lab and guided red-team workflow to examine behavior beyond the happy path. The core catalog remains available without a subscription. Pro adds the structured practice and compute-backed workflows used to go deeper. Free Pro Search the free catalog for the constraint you are working through, or compare plans before creating an account.