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GreyhavenHQ
greywall
Go2026–2026
GreyhavenHQ / greywall

greywall

Container-free, deny-by-default sandbox for AI coding agents. Kernel-enforced filesystem, network, and syscall isolation for Linux and macOS

3Distinct people
4Mentions
0Explicit recommenders
315GitHub stars
REPOSITORY AT A GLANCE

What to know before exploring

What it is

Container-free, deny-by-default sandbox for AI coding agents. Kernel-enforced filesystem, network, and syscall isolation for Linux and macOS

GitHub

Where it is used

No documented product use has been verified yet.

What people are saying

No recommendation phrase was found in the indexed comments.

No classified warning is attached to this page. Read the discussions before treating silence as approval.

Also in these discussions

No other repository is repeatedly linked in the same discussions.

This week on Hacker News

Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 5:04:57 PM UTC.

No direct repository links were found in the indexed HN discussions over the past seven days. Older discussions are available below.

Mentions over time

HN mentions by week4 dated mentions

Observed mentions: 2026-03-09 16:47:59 UTC to 2026-07-13 04:14:12 UTC. Weeks start Monday, UTC.

012026-03-09 00:00:00 UTC to 2026-03-16 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsMar 92026-03-16 00:00:00 UTC to 2026-03-23 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-03-23 00:00:00 UTC to 2026-03-30 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-03-30 00:00:00 UTC to 2026-04-06 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-04-06 00:00:00 UTC to 2026-04-13 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-04-13 00:00:00 UTC to 2026-04-20 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 comments2026-04-20 00:00:00 UTC to 2026-04-27 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-04-27 00:00:00 UTC to 2026-05-04 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-05-04 00:00:00 UTC to 2026-05-11 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-05-11 00:00:00 UTC to 2026-05-18 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 commentsMay 112026-05-18 00:00:00 UTC to 2026-05-25 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-05-25 00:00:00 UTC to 2026-06-01 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-06-01 00:00:00 UTC to 2026-06-08 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-06-08 00:00:00 UTC to 2026-06-15 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-06-15 00:00:00 UTC to 2026-06-22 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-06-22 00:00:00 UTC to 2026-06-29 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-06-29 00:00:00 UTC to 2026-07-06 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-07-06 00:00:00 UTC to 2026-07-13 00:00:00 UTC (exclusive): 0 mentions; 0 submissions, 0 comments2026-07-13 00:00:00 UTC to 2026-07-20 00:00:00 UTC (exclusive): 1 mentions; 0 submissions, 1 commentsJul 13

Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.

View mention counts and date ranges
UTC ranges include their start and exclude their end. Select a period to filter the source evidence.
PeriodStart (UTC)End (exclusive, UTC)MentionsSubmissionsComments
Mar 92026-03-09 00:00:00 UTC2026-03-16 00:00:00 UTC101
Mar 162026-03-16 00:00:00 UTC2026-03-23 00:00:00 UTC000
Mar 232026-03-23 00:00:00 UTC2026-03-30 00:00:00 UTC000
Mar 302026-03-30 00:00:00 UTC2026-04-06 00:00:00 UTC101
Apr 62026-04-06 00:00:00 UTC2026-04-13 00:00:00 UTC000
Apr 132026-04-13 00:00:00 UTC2026-04-20 00:00:00 UTC101
Apr 202026-04-20 00:00:00 UTC2026-04-27 00:00:00 UTC000
Apr 272026-04-27 00:00:00 UTC2026-05-04 00:00:00 UTC000
May 42026-05-04 00:00:00 UTC2026-05-11 00:00:00 UTC000
May 112026-05-11 00:00:00 UTC2026-05-18 00:00:00 UTC000
May 182026-05-18 00:00:00 UTC2026-05-25 00:00:00 UTC000
May 252026-05-25 00:00:00 UTC2026-06-01 00:00:00 UTC000
Jun 12026-06-01 00:00:00 UTC2026-06-08 00:00:00 UTC000
Jun 82026-06-08 00:00:00 UTC2026-06-15 00:00:00 UTC000
Jun 152026-06-15 00:00:00 UTC2026-06-22 00:00:00 UTC000
Jun 222026-06-22 00:00:00 UTC2026-06-29 00:00:00 UTC000
Jun 292026-06-29 00:00:00 UTC2026-07-06 00:00:00 UTC000
Jul 62026-07-06 00:00:00 UTC2026-07-13 00:00:00 UTC000
Jul 132026-07-13 00:00:00 UTC2026-07-20 00:00:00 UTC101

What Hacker News says

4 sources
We're working on that! Many sandboxes exist, including our own, Greywall. It integrates with our proxy, Greyproxy, which handles TLS interception and reconstructing LLM conversations, plus features like credential swapping. We currently have a PR for middlewares we can test; things like intent classification to catch conversation derails, PII redaction, etc. It's open source, check out greywall.io // github.com/greyhavenhq/greyproxy // github.com/greyhavenhq/greywall
In Ask HN: How are you handling runtime security for your AI agents?
This is awesome! I think this is one of the most important technical hurdles in deploying agent applications right now. I'm involved with a project building something very similar, which we literally open sourced an alpha version of last week: https://github.com/GreyhavenHQ/greywall It's a bit different in that: - We started with Linux - It is a binary that wraps the agent runtime - It runs alongside a proxy which captures all traffic to provide a visibility layer - Rules can be changed dynamically at runtime I am so happy this problem is getting the attention it deserves!
In Agent Safehouse – macOS-native sandboxing for local agents

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