# How much of Rohlik Group's code is written by AI agents?

> Rohlik Group, an online grocer in five countries, describes its engineering organization as "agent-mostly." Cognition reports about 90% of code is agent-generated, with agents in planning, code generation, code review, and incident response.

- **Evidence grade:** B — Named organization with a quantified outcome, from the vendor or the organization's own announcement.
- **Organization:** Rohlik Group (online grocery company)
- **Industry:** Consumer Products & Retail — Online grocery (Europe)
- **Roles:** Software Engineering
- **Tools:** Devin (Cognition)
- **Status:** production · **Agent pattern:** multi-agent · **Autonomy:** 3/4
- **Last verified:** 2026-10-17

## Reported outcomes
- agent-generated code: about 90% [1] (self-reported)

## How it works
1. Agents operate in every SDLC step: planning, coding, review, incident response.
2. Engineers supervise agents.

## Risks & compliance
- Agent-written code requires human review and testing
- Vendor-published results; not independently audited

## Sources
1. Cognition (Devin), "Rohlik Group and Devin" (undated; accessed 2026-10-17) <https://devin.ai/customers/rohlikgroup>
   > "About 90% of code is agent-generated, and agents operate in every step of the SDLC: planning, code generation, code review, and incident response."

Canonical: https://agentcasefile.com/cases/rohlik-group-agent-mostly-engineering/ · License: CC BY 4.0 (summary) · Source: Agent Casefile