No written verdict yet. Here is what commenters said.

5recommend
4warn against
Jan 12, 2026first mention
Oct 16, 2026latest mention
Nov 25 – Oct 26
Used foragent orchestrationagent harness conceptsagent orchestration on kubernetesscaling agentic workloadsmulti-agent harness configurationmulti-agent orchestration

Why people recommend it

“Scion was the tool I'd been using for this”

“I really enjoy how Scion operates with existing tools really well.”

Show 3 more

“I personally like the way Scion breaks it down into”

“I have high interest in scion too! I love the robust platform underneath.”

Caveats and dissent

“in a way that some people would classify as cheating / plagiarism / insert-your-criticism-here”

“Well, SCION might not be open. No open standard, no IETF, no open source implementation”

Show 1 more

“SCION OSS border router performance reached a ceiling of around 400k-500k packets per second”

Often compared with

From the makers not counted in the ranking

“We were inspired by many things while building Scion”

“SCION right now provides the backbone for the Swiss financial network”

has worked on SCION-based projectson “Is BGP Safe Yet? No. Test Your ISP”

All comments 23

“in a way that some people would classify as cheating / plagiarism / insert-your-criticism-here”

“I think Scion (Google's) does a decent job defining these concepts”

“Scion was the tool I'd been using for this”

The project that ax builds on top of does have that disclaimer, and sits on a non-google organisation https://github.com/agent-substrate/substrate

“another very related Google project (one employee)”

“Scion wraps the harnesses (9x) we all use every day and is closer to OpenClaw on Kubernetes”

“I really enjoy how Scion operates with existing tools really well.”

“I personally like the way Scion breaks it down into”

“I have high interest in scion too! I love the robust platform underneath.”

“This is what https://github.com/GoogleCloudPlatform/scion does”

“I've been using Scion [1] lately to put my agents in the background”

“looks more mature as well”

I made one similar harness, mine does lightweight sandboxing with Seatbelt on Mac and Bubblewrap on Linux. I initially used Docker too, but abandoned it. I like how these 2 sandboxes allow me to make all the file system r/o except the project folder which is r/w (and a few other config folders). This means my code runs inside the sandbox like outside, same paths hold, same file system. The .git folder is also r/o ins

“They kinda buried the code deep in their docs”

“that patent looks like it is for an optimization, not a necessary component of SCiON.”

“Well, SCION might not be open. No open standard, no IETF, no open source implementation”

“Check out https://www.scion.org/”

“SCION gives you path authenticity that BGP simply can't provide.”

“SCION OSS border router performance reached a ceiling of around 400k-500k packets per second”

Threads where it came up

Also written as SCION. Data: scion.json. Quotes are verbatim; the verdict and theme labels are written by a model from these comments, and every clause links to its sources.

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