Reading list

Official docs first. Add new links with a date and one line on why.

Official docs

• LangChain Agents
• create_agent reference
• v1.0 release blog
• Chat model integrations
• LangGraph persistence
• LangGraph memory
• MCP in LangChain
• Deep Agents overview
• LangSmith observability
• LangSmith evaluation

Repos

• deepagents
• langchain-mcp-adapters
• langgraph-supervisor
• langgraph-swarm

Background

• The Anatomy of an Agent Harness

My finds

• 2026-07-01 — Introducing Rubrics for Deep Agents. New RubricMiddleware makes an agent grade and fix its own work — useful for tasks with clear pass/fail rules.
• 2026-07-01 — Deep Agents: programmatic subagents. Launch subagents from code to fan out and merge work.
• 2026-07-01 — June 2026 LangChain newsletter. Round-up of new LangSmith/Fleet features (on-call copilot, computer use, voice traces).
• 2026-07-01 — Course: Introduction to LangSmith Deployment. Free course on deploying and running agents at scale.