Mastra Ships Knowledge, MCP Events, Span Queries

This is less a single feature drop than a platform-hardening cycle, and that’s strategically important for teams moving agents beyond demos.

• –Mastra Knowledge gives agents persistent, company-wide context through a self-hosted knowledge graph.
• –MCP events let agents react to external changes through push, polling, or webhooks instead of repeatedly calling tools.
• –Span queries make observability actionable by isolating failed, slow, or costly tool calls across traces.
• –Observational Memory’s BEAM scores are impressive at 100K and 1M tokens, though the comparison is vendor-reported and performance drops at 10M.
• –Broader vector-store support reduces infrastructure lock-in, but developers should still test provider-specific filtering and indexing behavior.