agent-sandbox vs coven
Local environments for AI coding agents compared
agent-sandbox and coven both help developers run AI coding agents within project boundaries. agent-sandbox focuses on container isolation and controlled network access, while coven provides a shared runtime for managing and observing sessions across supported agent tools.
agent-sandbox: Run Coding Agents in a Locked-Down Environment
Agent Sandbox runs AI coding agents in Docker containers with restricted workspace access and default-deny network controls. It suits developers who want to limit an agent’s access to local files, network services, and credentials while retaining CLI or IDE workflows.
coven: Run Project-Scoped AI Coding-Agent Sessions
Coven is a local-first Rust runtime for running coding-agent tools within project boundaries. It provides shared session management, durable event storage, and a local API for developers coordinating work across supported harnesses.
| agent-sandbox | coven | |
|---|---|---|
| Language | Python | Rust |
| License | MIT | MIT |
| Stars | 207 | 66 |
| Forks | 19 | 27 |
| Last analyzed | Oct 3, 2026 | Oct 4, 2026 |
Key differences
- agent-sandbox uses Docker containers, a proxy, and firewall rules to restrict workspace and network access; coven runs harnesses in project-scoped sessions through a local Rust daemon.
- agent-sandbox supports CLI and devcontainer workflows; coven offers CLI and interactive terminal UI workflows, plus a local IPC API for clients and integrations.
- agent-sandbox is written in Python and uses a Debian container with pinned dependencies; coven is written in Rust and stores session state in SQLite.
- agent-sandbox supports proxy-side secret injection; coven records session events, and its README warns that logs can capture secrets in harness output.
- Both projects are MIT licensed and early-stage; agent-sandbox describes its controls as best-effort, while coven describes itself as an early MVP and cautions against untrusted harnesses or prompts in sensitive repositories.
Choose agent-sandbox if you…
- need to restrict an agent's access to host files and outbound network destinations.
- want proxy-side credential injection or supported devcontainer workflows.
- prefer a container-based setup and can configure explicit network rules for required services.
Choose coven if you…
- want to manage sessions for Codex, Claude Code, or GitHub Copilot CLI through one runtime.
- need durable local session records and tools to observe or attach to running agent work.
- are building a client or integration around a local API for project-scoped sessions.
Compare the numbers side by side, or add more projects
This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.