Mysten Labs is changing who runs the company, and the interesting part is who is not leaving the building. Per The Defiant, Kevin Boon succeeds Evan Cheng as CEO. Cheng stays on as CTO and will personally lead a new AI business unit building agent infrastructure tied to Sui and Walrus. The CEO seat moves. The founder-engineer moves toward agents.
Our take: a founder stepping off the top job to personally run an agent unit is a stronger signal than a blog post saying "we're excited about AI." It is a staffing decision, and staffing is where intent shows up first.
One caveat up front. The Defiant's article body did not load for us, so what we can cite from it is the headline and the subhead. We have no quotes, no timeline and no product detail from that piece. Everything below that goes beyond it comes from other linked sources, and where we don't know something, we say so.
What the report says
- ▸Kevin Boon is the new CEO of Mysten Labs, succeeding Evan Cheng.
- ▸Cheng remains CTO.
- ▸Cheng personally leads a new AI business unit.
- ▸The unit's remit is agent infrastructure tied to Sui and Walrus.
That is the whole claimed surface. There is no named product, no launch date and no pricing in what we could read. "Agent infrastructure" is a category, not a spec.
Who Boon is
This is not an outside hire. Mysten's own announcement, dated January 9, 2025, named Boon President. He had been Chief Legal Officer. In that earlier role he oversaw legal, business development, corporate development and strategic communications. As President he took on parts of company strategy and operations, plus a cross-functional role in expanding Mysten's infrastructure suite and first-party products.
Mysten's post lists his earlier roles as general counsel at Picsart, a legal leadership role at Block covering product, regulatory, commercial and international teams, and lead counsel for several Amazon retail teams. That is a deal-and-operations résumé, not a protocol-research one. Read the split as it is: operator on the company, engineer on the new bet.
The CTO seat, and what we can't tell you
In August 2026, Cointelegraph reported that Sam Blackshear, Mysten co-founder and chief technology officer, would step down to work on defensive security research at Anthropic. The same report says Cheng would set Mysten's technical vision going forward. It did not say whether Cheng would take the CTO title or whether a new CTO would be named.
The Defiant's subhead now has Cheng as CTO. We haven't seen a source that states when that happened, so we won't guess at the sequence. What the sources do support: two months after the co-founder CTO's departure was reported, the CEO is handing off the CEO role and keeping the technical one.
Why builders should care
Sui and Walrus are the two pieces Mysten has pointed at this unit. Walrus is Mysten's decentralized storage protocol for large binary files. Agents produce and consume plenty of those: model artifacts, datasets, logs, memory. So the pairing is plausible on its face.
Plausible is not shipped. Nothing we found says what the unit will release, whether it will be open source, or how it will connect to the agent tooling people already use: wallets, payment rails, MCP servers, skills. Until there is a repo or a spec, this is a claim about direction.
The pattern is worth noting. L1 teams keep creating agent-specific units, because "where do agents keep state and settle payments" is now a platform question. Each of them will publish an agent story. The ones that matter will ship a stack a builder can install and test.
What to watch
- ▸A named product or repo. The first artifact from the AI unit tells you more than any announcement. Look for docs, an SDK, or an MCP server you can run.
- ▸Walrus in the agent loop. Whether agent memory or artifacts get a documented path to Walrus, or this stays a diagram.
- ▸Wallet and payment controls. Agent infrastructure that touches funds needs spend limits and permissions spelled out, not implied.
- ▸The primary announcement. If Mysten publishes its own post on the leadership change, it will have the dates and details this report's summary lacks. We will update when it does.
Build with it
If you are building an agent on Sui today, start from the stack that exists, not the unit that was just announced. The Sato library maps the skills, MCPs, wallets and payment rails you can use now, with the Sato Score showing how open and active each one is. That is a transparency and liveness signal, not a safety or quality grade. Describe the agent at satohub.ai/build and see what maps.