Mecatl: Stacklok's cloud-native harness bet

Stacklok's pivot from software supply chain security to Kubernetes-based agentic solutions is led by two people who helped create Kubernetes at Google: Craig McLuckie and Joe Beda. The company raised a $17.5 million Series A back in 2023 from Accel, Madrona and Bain Capital. Its earlier open source product, ToolHive, started as a way to manage MCP servers running in Docker containers on the desktop, then expanded into a Kubernetes-based gateway, registry and operator helper.

Mecatl's design follows the same reasoning behind Kubernetes control loops, which keep applications running, recover from failures and scale when needed. The pair argue that container orchestration in the early 2010s faced similar challenges around reliability and isolation. McLuckie frames the goal as running in a cloud decoupled from the specifics of the cloud provider, echoing what the team did in the Kubernetes era. Beda claims many agent tools were designed for individuals or small startup teams, and McLuckie says most Stacklok customers are banks, semiconductor companies and telcos in relatively regulated industries.

The stakes appear to hinge on whether enterprises will pay for a central control plane rather than accept the harnesses that arrive bundled with frontier lab tools. ToolHive and Mecatl are intended to be independently useful, so the open source projects are easy for a small team to run; Beda says scaling them out to multiple clusters and multiple clouds surfaces new problems. It remains an open question how quickly regulated enterprises move agent workloads onto Kubernetes, and whether Stacklok's commercial spine becomes the standard for doing so.