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Agents2026-09-05 · source-backed
Released September 4. @mastra/evals/vitest exposes runEvals as Vitest tests with expectEvals/expectEval and a per-test score reporter, so agent quality checks run in the same pipeline as unit tests. It also adds reusable sandbox template APIs so a workspace-backed coding agent boots from a pre-cloned, pre-built repo image with background rebuilds. Two breaking changes: @mastra/factory's sandbox config becomes a callback and drops the fleet/reattach model, and playground-ui collapses Chip, ChipsGroup and StatusBadge into one Badge (GitHub).
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The TypeScript framework added a v1 ToolProvider runtime for managing OAuth-backed connections, @mastra/mysql as a first-class storage backend, and a VercelMicroVMSandbox built on ephemeral Firecracker microVMs (GitHub). The MicroVM sandbox is the standout. Per-session isolate...
3,364 stars since its August 17 creation. Every action against a computer, file, MCP server or UI component routes through a single gateway that resolves the target, decides it against policy, writes an audit row, then acts or refuses while naming the rule. Each bot gets its o...
@mastra/[redacted], released August 26, adds an optional SandboxComputer capability to workspaces covering screenshots, mouse and keyboard control, display info and wait tools, with providers in @mastra/daytona and a new @mastra/e2b-desktop package bundling E2B command, proces...
Also: stored agents from the Agents API can run with durable: true with no redeploy, @mastra/rag gained serialize()/GraphRAG.deserialize() so knowledge graphs survive restarts, and sandboxes advertise supportsCheckpoints with filesystem-backed snapshots. (GitHub) A day earlier...
@mastra/core 1.59.0 shipped yesterday with two breaking changes: Factory automatic agent runs now default to off via autoRunEnabled, with rule-proposed runs parked as "proposed" decisions until approved, and CostGuardProcessor becomes TokenCostControl with warnAtPercent, per-r...
Mastra (26.6k stars) announced a system where specialized agents triage issues, write and validate code, cut releases, update docs and monitor production, connected to GitHub, Linear and Slack. Install is npm create factory. Adopt it or don't, but the design point transfers: e...
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