@mastra/core

Mastra Core Framework by Mastra

Mastra Core Framework package.

Live Registry Versionv1.79.0Previous: v0.0.0-doctor-retest-20261023184401Published 2026-10-21

Stability Grade

C+ (70/100)

90-Day Velocity

63 releases

High release cadence

Dependencies

30 direct

NPM manifest

License

Apache-2.0

Verified on NPM

Recommended Exact Pin: npm install @mastra/core@1.79.0

NPM Registry ->GitHub Repo ->

TL;DR Verdict & Quick Citation Summary (2026-10-24)Source: AgentBreakWatch Live NPM Index

Mastra Core Framework (@mastra/core) is currently at v1.79.0 on NPM (published 2026-10-21), with a 90-day stability score of 70/100 (C+) and HIGH schema drift risk across 63 releases in the past 90 days. Rapid v1.x cadence updates Agent memory thread scoping, createTool inputSchema validation, and workflow step execution context. Production teams should pin npm install @mastra/core@1.79.0 rather than using unpinned @latest tags.

Breaking Changes & Tool Schema Drift Analysis

Rapid v1.x cadence updates Agent memory thread scoping, createTool inputSchema validation, and workflow step execution context.

Watched Exports / MCP Tool Signatures:

MastraAgentcreateToolcreateWorkflow

Before (Deprecated / Unpinned Pattern)

const agent = new Agent({ name: "helper", llm: { provider: "OPEN_AI", name: "gpt-4o" } });

After (Verified v1.79.0 Pattern)

const agent = new Agent({ id: "helper", name: "helper", model: openai("gpt-5") });

Frequently Asked Questions: @mastra/core

What is the latest version of @mastra/core on NPM?

As of 2026-10-24, the latest stable version of @mastra/core (Mastra Core Framework by Mastra) on NPM is v1.79.0, published on 2026-10-21. It has shipped 63 releases in the last 90 days.

Does @mastra/core v1.79.0 have breaking changes or MCP schema drift risk?

@mastra/core currently carries a HIGH schema drift risk rating with a Stability Score of 70/100 (Grade C+). Rapid v1.x cadence updates Agent memory thread scoping, createTool inputSchema validation, and workflow step execution context.

How do I safely pin @mastra/core in production?

Avoid unpinned @latest tags in production agent configs. Pin the exact verified version using `npm install @mastra/core@1.79.0` and monitor Mastra, Agent, createTool, createWorkflow for parameter or schema changes.

30-Min Registry & Schema Poller