Everything Announced at Interrupt

LangChain unveiled multiple new products for agent development, infrastructure, and governance at the Interrupt event.

LangSmith Engine is an autonomous agent that automatically analyzes production traces, clusters failures, and then auto-generates PRs including code fixes and eval coverage. Cogent and Campfire have used it to resolve thousands of trace issues, and it is now available in public beta.

SmithDB is a database purpose-built for agent observability, built on Rust-based Apache DataFusion and Vortex. It delivers up to 15x faster performance on core workloads (P50 trace tree load 92ms, single run load 71ms), with a stateless architecture on object storage for scalability.

Managed Deep Agents is an API-first hosted runtime for deep agents. Key features:

• Durable threads, streaming execution, checkpointing, human-in-the-loop workflows
• Support for AGENTS.md, skills/, subagents/, tools.json
• Memory and context management via Context Hub
• Sandbox-based code execution

LangSmith Sandboxes has launched as GA. It's a secure code execution environment running in hardware-virtualized microVMs, with key features including:

• Copy-on-write based snapshots and forking
• Reusable base environments via Blueprints
• Automatic pause when idle
• Sandbox CLI and Auth Proxy (network-layer credential injection)

Context Hub is a tool for centrally managing files that define agent behavior, such as AGENTS.md, skills, and policies. It offers version control, tags (dev/staging/prod), and collaborative commenting, enabling agent context management outside of GitHub.

LangSmith LLM Gateway is a runtime governance layer between agents and LLM providers. It provides hard spend limits set at the organization/workspace/user/API key level, real-time detection and redaction of PII and secrets in requests/responses, and full audit logging. All policy events are sent directly to LangSmith along with traces.

LangSmith Fleet has added Sandbox access (public beta) and 5 pre-built agents (a coding agent, GTM agent, X content manager, executive assistant, and competitor researcher). Each agent is customized to the user's context through an onboarding flow.