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Joan Winter

As seen in: DEV Community, medRxiv
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Articles

Why Google keeps disapproving your Shopping products — and how to spot it in 10 seconds

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By Joan Winter
| DEV Community
If you run Google Shopping ads for a Shopify or WooCommerce store, you've seen it: products quietly marked Disapproved in Merchant Center, silently cutting your reach and wasting spend. The frustrating part is that the causes are almost never interesting — they're boring data problems in your product feed. Here are the ones that bite most often in 2026, and a free tool I built to find them instantly. The usual suspects 1. Invalid GTIN.
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Stop prompting, start encoding: turning engineering discipline into Claude Code skills

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By Joan Winter
| DEV Community
Claude Code is remarkably capable. But out of the box it does what you prompt — and most prompts quietly skip the checks a senior engineer would never skip. Ask it to "fix the slow endpoint" and it will happily eager-load a relation and call it done, without ever proving the slowness was an N+1 or measuring the result. The capability is there. The discipline is not — because you did not ask for it. The fix is not a bigger prompt. It is encoding the workflow as a skill.
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Cannabidiol for treatment of Irritability and Aggressive Behavior in Children and Adolescents with ASD: Background and Methods of the CAnnabidiol Study in Children with Autism Spectrum DisordEr (CASCADE) Study

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By Rebecca Rochowiak, Elise Sannar, Joan Winter, Ronda Franke
| medRxiv
The authors have declared no competing interest. NCT04520685 This study was funded by the Colorado Department of Public Health and Environment (CDPHE) with the investigational product (Epidiolex) provided by Jazz Pharmaceuticals. CDPHE and Jazz Pharmaceuticals are not involved in the study design, collection, analysis, and interpretation of data, writing of the report, or in the decision to submit the article for publication.
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