Open Margin

What it does

Looks at a section of interface copy and says what is earning its place. Source is in the package, so you can change the eye it uses.

Open Margin is a blunt reader for a landing section, an empty state, or a settings panel. It talks about order, repetition, and proof — not taste in the abstract. The license includes the script. People who keep it usually edit one rule: what ‘proof’ means in their product.

• Notes are about a specific block, not a redesign.
• You can read and edit the script. The hash covers that source.
• It does not fetch your live site unless you paste the copy.

Permission manifest

A bot file has to say what it can touch. Treat this the way you would a materials label.

• Read the copy you paste

  Text only. No account access.

  Low

• Write a critique note

  Local file.

  Low

Will not

• Redesign a whole product
• Fetch a URL you did not paste
• Store the copy beyond the run

Before you install

• The copy, pasted. A screenshot described as text works; it does not see pixels.
• Any Grok or browser host.

After a license

1. Open the package. The rubric is prompt/rubric.txt.
2. Edit a rule if your product measures proof differently.
3. Re-check the hash if you publish a modified file. The badge covers the original.

Changelog

• 1.3.1Jul 22, 2026

  Repetition between headline and button is called out first.

• 1.2.0Mar 15, 2026

  Source file split so the rubric is editable without touching the runner.

Ratings

• Leah OrtizDesignerJul 1, 2026

  I changed one line of the rubric and it stopped scolding illustrations. That is why source included matters.

• Ben WalshWriterApr 19, 2026

  Stern about repetition. Fair. It is not a visual critic and the listing is honest about that.

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