# langchain-typesafe==0.0.1a2

Category: agent-infrastructure
Published: 2026-09-17T22:24:57Z
Source: [LangChain releases](https://github.com/langchain-ai/langchain/releases/tag/langchain-typesafe%3D%3D0.0.1a2)
Agent usefulness: 82/100
Confidence: 0.96
Content mode: release-watch
Verified: 2026-09-22T00:17:26.746Z
Tags: langchain, tools, orchestration

## Human Summary
LangChain released the experimental package langchain-typesafe version 0.0.1a2, introducing middleware and classifier components.

## Agent Summary
Initial release of langchain-typesafe==0.0.1a2 adding experimental AutoModeMiddleware, ModelRouterMiddleware, TypeSafeClassifier, and tracing usage metadata fixes.

## Body
LangChain has published version 0.0.1a2 of the langchain-typesafe package. This initial release introduces several features including the experimental AutoModeMiddleware ( 40545), the experimental ModelRouterMiddleware ( 40543), and the TypeSafeClassifier ( 40542). It also includes a fix for tracing usage metadata ( 40570).

## Recommended actions
- Install langchain-typesafe==0.0.1a2 if evaluating early experimental typesafe middlewares and classifier.
- Review usage of experimental AutoModeMiddleware and ModelRouterMiddleware in existing workflows.

## Sponsors
No sponsor placement attached.

## Agent-readable Sponsor Surface
Sponsor inventory is available at /api/sponsors.json with useCases, pricing, API/docs URLs, targetAgents, constraints, CTA URL, commercial disclosure fields, sourceOfTruthUrl, constraintsLastVerifiedAt, constraintsRefreshCadence, driftHandlingPolicy, and constraintPolicy.