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Drop
Rootless Linux sandbox modelled on virtualenv: disposable environments that reuse your existing distro, hide your real home and secrets, and block localhost services, with optional gVisor.
droprun.sh/Active
v0.3.1 released 2026-10-09; repo pushed 2026-10-23. Show HN 2026 (193 points). (checked 2026-10-25)
In Agent guardrails
Where it stands apart
- How is it mainly sustained? individual side project, no revenue (25% of 20 others)
- Which shared standard or format does it mainly build on? OS sandbox primitives (Seatbelt, bubblewrap, Linux namespaces, seccomp) (14% of 21 others)
- Does it control the agent's outbound network access? yes, but open by default or optional (25% of 16 others)
What it shares with most of the community
- Is it actively maintained? active (81% of 21 others)
- How is the main thing licensed? permissive open source (MIT/Apache/BSD) (67% of 21 others)
- Can it run entirely on your own device or infrastructure, without the maker's servers? yes (76% of 21 others)
- Do you need an account to use it? no account (67% of 21 others)
- Who is it for? developers (90% of 21 others)
- What mainly decides whether an action is allowed? rules, policy, or boundaries written in advance (57% of 21 others)
- If the guard itself breaks, is missing, or cannot decide, what happens by default? fails closed: the action does not run (71% of 17 others)
- Which agents does it work with? any agent or process (not limited to a named list) (71% of 21 others)
- What is the main thing it protects? the developer's machine and files (52% of 21 others)
- Is enforcement kept out of the agent's reach? yes, enforced in code or infrastructure the agent cannot change (95% of 21 others)
Nearest neighbors
- Plimsoll 80% of 15 shared answers match
- OpenAI Codex sandbox 75% of 16 shared answers match
- E2B 71% of 17 shared answers match
Every answer
| Question | Answer | Source |
|---|---|---|
| Is it actively maintained? | active | source 2026-10-25 |
| How is the main thing licensed? | permissive open source (MIT/Apache/BSD) Apache-2.0 | source 2026-10-25 |
| How is it mainly sustained? | stands apart individual side project, no revenue Copyright Jan Wrobel; free Apache-2.0 tool; no pricing, sponsors or company found. | source 2026-10-26 |
| Can it run entirely on your own device or infrastructure, without the maker's servers? | yes | source 2026-10-25 |
| Do you need an account to use it? | no account Local rootless Linux tool installed and run on your machine; no account mentioned. | source 2026-10-26 |
| Who is it for? | developers | source 2026-10-25 |
| Which shared standard or format does it mainly build on? | stands apart OS sandbox primitives (Seatbelt, bubblewrap, Linux namespaces, seccomp) Rootless Linux namespaces (optional gVisor); own TOML config. | source 2026-10-26 |
| Where does it mainly step in? | at the OS or VM boundary (sandbox, container, syscall supervisor) | source 2026-10-25 |
| What mainly decides whether an action is allowed? | rules, policy, or boundaries written in advance TOML config of exposed files, dirs and local services. | source 2026-10-25 |
| If the guard itself breaks, is missing, or cannot decide, what happens by default? | fails closed: the action does not run The agent is started inside the sandbox; nothing outside it to bypass. | source 2026-10-25 |
| Which agents does it work with? | any agent or process (not limited to a named list) | source 2026-10-25 |
| In the default setup, where does the agent's work actually execute? | in a local VM, container, or OS sandbox | source 2026-10-25 |
| What is the main thing it protects? | the developer's machine and files 'A hallucinated rm -rf ~ doesn't touch your actual home dir.' | source 2026-10-25 |
| Does it keep a record of agent actions? | no, or not a focus | source 2026-10-25 |
| Does it control the agent's outbound network access? | stands apart yes, but open by default or optional Blocks localhost services by default; public internet stays reachable. | source 2026-10-25 |
| What is it mainly for? | letting agents run with fewer approvals, safely 'Run agents with --dangerously-skip-permissions and let Drop enforce permissions at the OS level.' | source 2026-10-25 |
| Is enforcement kept out of the agent's reach? | yes, enforced in code or infrastructure the agent cannot change | source 2026-10-25 |
Sources
This page was derived from:
- GitHub · github.com/wrr/drop · read 2026-10-25
- Web page · droprun.sh/ · read 2026-10-25
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