Scion by Google
Ranked 4 of 26 agent orchestrators by recommenders
Free open-source Google testbed that sets up containers, auth and git worktrees for coding agents. Critics say it suits only very large organizations.
Free open-source Google testbed that sets up containers, auth and git worktrees for coding agents. Critics say it suits only very large organizations.
60 people gave an opinion
- recommend it
- 28
- criticize it
- 32
- approval share
- 47%
Recommended in 8 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: recommended
- February 2026: not recommended
- March 2026: recommended
- April 2026: recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: not recommended
- August 2026: recommended
- September 2026: recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it doesn’t carry the badge
- 28 people recommend itNeeds 10 or more, met.
- 0.8 recommenders for every criticNeeds 2 to 1 or better, not met.
- Recommended in 8 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Free and open source
“Google has a free, open source take on what you are building, looks more mature as well”
Comment from 10 Apr 2026 on Hacker News “free, open source take on what you are building, looks more mature as well”
Comment from 10 Apr 2026 on Hacker News “it's open source and fairly well documented with a large community”
Comment from 7 Apr 2026 in “Google Open Sources Experimental Agent Orchestration Testbed Scion” Well-designed concepts and scaling
“The Scion project seems like a great example of identifying and addressing scaling issues”
Comment from 13 Oct 2026 in “Redesigning source control at Anthropic” “I think Scion (Google's) does a decent job defining these concepts”
Comment from 15 Oct 2026 in “OpenCode 2.0” “the Scion design is quite good”
Comment from 15 Oct 2026 in “Anthropic's Scion is heavily inspired by Mononoke” Works with existing tools
“I really enjoy how Scion operates with existing tools really well.”
Comment from 20 Sep 2026 in “AX – Google’s Open Agentic Orchestrator” “What's nice about Scion is that it runs existing systems.”
Comment from 21 Sep 2026 in “AX – Google’s Open Agentic Orchestrator”
What people warn about
Each mark is one comment
Single vendor, patent-restricted protocol
“No open standard, no IETF, no open source implementation, and its single commercial exploiter has patents on the technology”
Comment from 18 Mar 2026 in “Switzerland Built an Alternative to BGP” “They want to sell a technically brillant protocol that is single vendor propriety/patent restricted.”
Comment from 18 Mar 2026 in “Switzerland Built an Alternative to BGP” “SCION is practically speaking proprietary, and has 1 and maybe a half implementations.”
Comment from 1 Apr 2026 in “Is BGP Safe Yet? No. Test Your ISP” Questioned need and design
“I think this is the wrong way to solve problems and goes the wrong way toward solving real problems.”
Comment from 13 Oct 2026 in “Redesigning source control at Anthropic” “I don't expect Scion's design to be very good, and the implementation is likely pretty bad”
Comment from 15 Oct 2026 in “Anthropic's Scion is heavily inspired by Mononoke” “I remain unconvinced that they even need a new VCS to achieve what they want to.”
Comment from 14 Oct 2026 in “Anthropic's Scion is heavily inspired by Mononoke” Limited production use so far
“I know there are networks listed there that aren't running scion in a production capacity”
Comment from 1 Apr 2026 in “Is BGP Safe Yet? No. Test Your ISP” “Six months from now half of these abstractions will have been renamed or removed”
Comment from 7 Apr 2026 in “Google Open Sources Experimental Agent Orchestration Testbed Scion”
Other agent orchestrators people recommend
The four most recommended other agent orchestrators, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Gas Town | 95 | 212 | 31% | 10 | 1 mo3 owners | — |
| Conductor | 58 | 25 | 70% | 11 | — | Approved |
| Superset | 33 | 16 | 67% | 8 | 2 mo4 owners | Approved |
| Scion by GoogleThis page | 28 | 32 | 47% | 8 | — | — |
| Agent Swarm | 16 | 3 | 84% | 6 | 8 mo3 owners | Approved |
What people said
40 of the 79 comments that mention it, newest first. Each links to the original comment.
“the Scion design is quite good”
“I don't expect Scion's design to be very good, and the implementation is likely pretty bad”
“I think Scion (Google's) does a decent job defining these concepts”
“I remain unconvinced that they even need a new VCS to achieve what they want to.”
“It could totally be helpful to both new startups as well as individual hobbyists working on greenfield projects.”
“Truly impressive, given the scale of Anthropic.”
“it works fundamentally differently and does not have a clear one-to-one mapping”
“The Scion project seems like a great example of identifying and addressing scaling issues”
“There is a major benefit here and Scion does have some extra features not listed in this blog post”
“Scion was so much faster, we are able to write more code”
“It's a good sign they are on the right track.”
“they optimized for orders of magnitude more throughput and less latency”
“Most interesting thing about Scion is how quickly it was deployed.”
“I think this is the wrong way to solve problems and goes the wrong way toward solving real problems.”
“Scion is still very much meant for teams of people to interact with teams of agents.”
“What's nice about Scion is that it runs existing systems.”
“I really enjoy how Scion operates with existing tools really well.”
“I personally like the way Scion breaks it down into”
“The sandboxing part looks nice to me, and I like that there is some message-bus-ish thing between agents.”
“Scion handles all the messiness of setting up a container with auth, git worktree, and tmux”
“This is what https://github.com/GoogleCloudPlatform/scion does”
“two agent runtimes designed for scaling out, that are both kind of neat”
“I've been using and taking inspiration from Scion”
“free, open source take on what you are building, looks more mature as well”
“Google has a free, open source take on what you are building, looks more mature as well”
“compiling everything from source all the time isn't really appealing”
“ADK lacks the ability to run any agent tool, but you can build most of this projects controlplane on top of it”
“Google's solutions are amazing , but they're also built for an organization as large and complex as Google.”
“Scion's support for long running agents and inter-container communication looks really interesting”
“it's open source and fairly well documented with a large community”
“Six months from now half of these abstractions will have been renamed or removed”
“a technology needs a certain level of matureness”
“I know there are networks listed there that aren't running scion in a production capacity”
“so at least some level of workable technology has to be there”
“SCION is practically speaking proprietary, and has 1 and maybe a half implementations.”
“They want to sell a technically brillant protocol that is single vendor propriety/patent restricted.”
“No open standard, no IETF, no open source implementation, and its single commercial exploiter has patents on the technology”
“the fact neither quagga nor frr nor bird SCION patches are available by googling 5 seconds”
“getting real-world traction, especially from a security standpoint”
“It's here to provide a more secure and more reliable way of interconnecting ASes”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.