A sandbox is provisioned as a tool only when the agent needs to execute code or work with files. TrueFoundry says that reduces unnecessary compute.

TrueFoundry open sourced TrueForge, an agent harness aimed at Claude Managed Agents. Its published benchmark shows 30% to 75% savings, not the advertised 50% TCO cut.

Analysts say TrueForge could make the most sense for high-volume workloads and regulated industries, where model flexibility can lower token costs, while managed services may…