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Complete pattern and technique catalog
Use cases, implementation guidance, and interactive demos
For builders who want expert architecture guidance plus the complete learning, evaluation, audit, and workshop workflow.
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AI Engineering Expert for architecture, implementation, and current research
Learning journeys without the daily action cap
Progress, XP, streaks, and achievements
Model Advisor comparisons with the sizing math to defend the choice
Prompt Optimizer and Eval Lab
Guided code challenges with editable examples and feedback
Guided red-team audits saved to your account
Workshop creation and live-session tools
Narrated audio for 285 patterns
Connect your agent over MCP to the news hub and your own reading list, with no daily call cap
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Every arXiv citation on this site is machine-verified by CI, and the July 2026 audit executed all 855 code samples then in the catalog: 855/855 passed.
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A free account reads the whole catalog and includes 10 sandboxed code runs, 20 learning actions, and 20 agent (MCP) calls per day. AI answers and recorded audio come with Pro. Pro also removes the code, learning and agent caps; the exact daily requests and monthly model-cost budget are shown on the plan card above. You can also use your own Anthropic or OpenRouter key, and requests on your key never draw on the plan allowance.
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