# PR Quality grades on every merged change

_Published June 10, 2026_

**By [Eugenio Sanchez](https://mesmer.co/resources/author/eugenio)**

**Section:** Feature release

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Every merged PR in Mesmer now gets a quality grade from 0 to 100.
Each tagged with a severity (critical, high, medium, low).

[Video](/blog/pr-quality.mp4#t=0.001)

A few things worth knowing:

- Grades only appear after a PR is merged.
- Alongside the absolute grade, we show how each PR sits against your
  team's 90-day baseline: above, on, or below average.
- The PR detail page has a "Why this grade" breakdown with points
  deducted, the size factor, and every finding linked to its diff line.

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Canonical: https://mesmer.co/resources/pr-quality