# Tessl Code Review

Tessl's engineering team runs a software factory on one monorepo, producing over 1,200 agent-written pull requests a week, and review had become its largest variable cost. The team encoded its own coding conventions, design system and AI code review policy into Tessl Code Review and set the review policy itself, so about 75% of PRs merged without a human correcting the agent or discussing the engineering. In a one-week side-by-side run over more than 600 PRs, 91% of its findings were real defects against 68% for the previous AI reviewer, with 1.56 versus 0.75 author-fixed bugs per PR and about 35% lower review cost per PR.

Tessl's engineering team runs a software factory on one monorepo, producing over 1,200 agent-written pull requests a week, and review had become its largest variable cost. The team encoded its own coding conventions, design system and AI code review policy into Tessl Code Review and set the review policy itself, so about 75% of PRs merged without a human correcting the agent or discussing the engineering. In a one-week side-by-side run over more than 600 PRs, 91% of its findings were real defects against 68% for the previous AI reviewer, with 1.56 versus 0.75 author-fixed bugs per PR and about 35% lower review cost per PR.