Tencent Cloud's CubeSandbox is a 12,497-star Go agent sandbox that does not carry a recognized open source license
GitHub Trending·medium signal
TencentCloud/CubeSandbox pitches instant, concurrent, lightweight isolation for AI agents, cut v0.7.1 on 2026-09-11, and gained 295 stars on the Go trending board today against 1,122 forks. GitHub's license field resolves to NOASSERTION, meaning the LICENSE file is not one of the recognized SPDX identifiers, which matters more for sandbox infrastructure than for a skills catalog. Read the license text before you put it in a commercial deployment path.