trailofbits/coop
Isolated VM environment for running Claude Code and Codex
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SDKs, agent skills, IDE extensions, and reference pipelines from Backblaze Labs. All open source.
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Where it stands
Rank, growth pace and release cadence relative to everything GStars tracks.
5 releases in the last 90 days, the latest 1 day ago, with 14 contributors on GitHub.
Use Cases & Benefits
- Manages isolated, disposable virtual machines to safely run Claude Code, Codex, and Grok Build with full tool access.
- Provides reproducible, cheap-to-create VM environments that protect the host machine from risk while enabling complex toolchains.
- Use for securely running AI code generation tools like Claude Code and Codex without exposing your host system.
- Use for creating reproducible build environments with Grok Build that include Docker, git, and compilers isolated from the host.
- Use for developers needing disposable, isolated VMs on macOS or Linux to test or develop software with full tool access.
Should you depend on it?
License terms, project hygiene and risks, from GitHub metadata and GStars' snapshots.
License
Apache 2.0
Permissive: commercial use, modification and redistribution are allowed with attribution; includes an explicit patent grant from contributors.
Community files
- README: present
- Contributing guide: present
Watch-outs
No watch-outs from GStars' checks.
General guidance from repository metadata, not legal advice. How we score
From the README
Isolated VM environments for running Claude Code, Codex, and Grok Build.
Pronunciation: "coop" (/kuːp/) — one syllable, rhymes with "loop", like the thing you keep chickens in. Not "co-op".
coop is a Rust CLI that manages disposable virtual machines where Claude Code, Codex, and Grok Build have full tool access: Docker, git, compilers, package managers, all without risk to your host machine. Each VM is isolated, reproducible, and cheap to create and destroy.
Or build from source (requires Rust and CMake):
With Nix, run
nix buildto build both binaries inresult/bin, ornix run . -- --helpto run the CLI. See Nix builds for installation and updates, and Nix development for the development shell.On Linux,
coop setupalso installs Firecracker and fetches a guest kernel. On macOS, install Lima first (brew install lima) — setup fails without it. coop is tested on macOS arm64 (Apple Silicon) and Linux x86_64; Linux arm64 builds are available but untested. Each backend has its own host requirements — see Prerequisites.See
coop updateand theupdatesconfig section.
Daily snapshots
Stars gained per day, and how forks and open issues moved, from GStars' daily snapshots
+133 stars over 36 days across 8 snapshot days; best day +24 on Sep 27.
Forks
44+14
Open issues
57+13
Compared with peers in CLI
Fastest-growing repositories GStars tracks in this cohort for the week of Nov 1, by 7-day star growth
| Repository | Stars | +7d | Health | Last release |
|---|---|---|---|---|
| vercel-labs/agent-desktop | 17.0K | +13.3K | 33 | today |
| mattpocock/skills | 315.4K | +8.7K | 35 | 7 days ago |
| stablyai/orca | 116.8K | +6.6K | 40 | today |
| obra/superpowers | 313.1K | +4.5K | 53 | 2 days ago |
| Panniantong/Agent-Reach | 109.3K | +3.0K | 60 | 4 days ago |
| trailofbits/coop | 803 | — | 56 | 1 day ago |
| Category median | 116.8K | +6.6K | 40 | — |
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