Volume I $39

MCP in Production

The practitioner's guide to building and running Model Context Protocol servers in production. Twelve chapters drawn from shipping fourteen @yawlabs/* servers - protocol, transport, schema design, auth, error handling, testing, hosting, security, and four case studies.

Volume II $39

Claude Code in Production

The power user's guide to shipping production software with Claude Code. Twelve chapters of operator-side discipline - the CLAUDE.md contract, the harness, subagents, memory, capacity, scope, the seven hazards, and what survives across teams.

Volume III $39

Semantic Search in Production

The practitioner's guide to shipping retrieval after the v0. Twelve chapters on hybrid search, eval discipline, drift, and re-embedding - the work nobody warned you about.

Volume IVEARLY ACCESS $39

A2A in Production

The discipline guide to running multi-agent systems after the v0. Twelve chapters on orchestration, auth across agent boundaries, federated memory, and partial failure - four readable today, eight as drafts complete. Free updates through v1.0 and beyond.