A one-hour course on building AI agents with Claude Opus 5.5 is being promoted on X by the account @0xCodez, which describes it as the work of Anthropic engineers. The post calls the model the best available for agentic systems and reverse engineering. Those claims come from the post; the course itself was not reviewed for this article, and Anthropic has not been confirmed as its publisher.
According to the post’s chapter list, the course starts with an introduction to Claude Managed Agents, Anthropic’s hosted agent platform. From there it moves to building a reasoning core on Opus 5.5 and designing the surrounding architecture. Later segments cover reusable /skills and /loops, along with memory graphs. The final sections address what the post calls “agent dreaming,” a background process, and orchestration, in which Opus 5.5 coordinates other agents. The course closes with reverse engineering using Claude agents.
The topics reflect problems that engineers face when moving agents beyond prototypes. Memory is the most consequential: the difficulty lies less in storing information than in deciding what an agent retrieves and discards at each step. Reusable skills raise a design question about where one capability ends and another begins. Orchestration brings its own issues, including error propagation, token costs, and whether results from sub-agents agree with one another.
https://x.com/0xCodez/status/2109653301021069686/video/1