Harness buys Augment Code's Cosmos and Auggie CLI

Harness, a company that sells software for shipping code to production, has bought the main products of the AI coding startup Augment Code. The October 8, 2026 deal covers Cosmos, a platform that runs teams of AI coding agents, plus the Auggie command-line tool and Augment's Code Context Engine. Augment's team is joining Harness. Neither company disclosed a price.

The deal matters because it joins two halves of a developer's job that are usually sold separately. Augment built tools that turn an idea into code. Harness builds tools that test, secure and deploy that code. Harness wants one set of AI agents to handle the whole trip.

What Harness bought

Harness bought "select" assets, not the whole company, according to a post by Harness co-founder and CEO Jyoti Bansal. The list:

Asset	What it is
Cosmos	A cloud platform that coordinates several AI coding agents
Auggie CLI	Augment's command-line coding tools
Code Context Engine	Augment's code context technology
Related technology	Not itemized

Cosmos gets a new name, the Harness Cosmos Software Factory Agent. Bansal's post says it is available now at its existing Augment address.

Augment co-founder and CTO Igor Ostrovsky is among those joining Harness, SiliconANGLE reports. Augment CEO Matt McClernan wrote that Harness's platform could deliver these tools more effectively than Augment could build them alone, according to Unite.AI.

How Cosmos works

Cosmos starts work when something happens: a new ticket, a bug report, a pull request, an alert, a webhook or a timer, Unite.AI reports. Its agents then plan a change, write the code and tests, open a pull request, and fix review comments and failed checks.

Each agent runs in its own isolated virtual machine, a sealed-off computer in the cloud. That keeps one agent's work from touching another's. Cosmos calls in a human engineer at set checkpoints where a judgment call is needed.

Cosmos ships with prebuilt agents Harness calls "Experts." Bansal's post names four: PR Author, Deep Reviewer, Risk Analyzer and Verifier. Teams can customize them.

Ostrovsky described the goal to SiliconANGLE as "engineers stepping in only where judgment really matters."

Where it fits in Harness

Harness already sells agents for later stages of the job: software delivery, security testing, runtime protection and cost management. Bansal frames the deal around that gap.

"Turning an idea into code and taking that code to production are two separate jobs," he told SiliconANGLE. His post adds a limit on the automation: "Autonomy should reduce repetitive work, not accountability."

Harness plans to connect Augment's Code Context Engine to its own Software Delivery Knowledge Graph, which tracks builds, deployments and infrastructure. Bansal lists that as future work, not a shipped feature. Harness says its existing controls, including policy-as-code, access rules, approvals and audit trails, will govern what the agents can do.

What this means for developers

If your team uses Augment's tools, the products now have a new owner and a new roadmap. The announcements we read do not say what happens to Augment's other products or its pricing. Ask your account contact before your next renewal.

Harness says customers will not be forced to switch. "They can keep using their preferred coding tools, adopt Harness Cosmos, or use both," Bansal told SiliconANGLE.

For teams evaluating AI agents, three things to check:

• Where the agent runs. Isolated virtual machines per agent are a sensible default. Ask any vendor how its agents are sandboxed.
• Where humans step in. Cosmos makes approval checkpoints explicit. Map them to your own review rules before turning it on.
• Whether context survives handoffs. The promised link between the code context and the delivery graph is the part that would make one platform better than two tools. It has not shipped yet.

This is an asset sale, not a classic acquisition. Augment Code the company was not bought outright, so watch what it does with what remains.