Previous value: -"New author photo URL, shown beside the byline and as the author's image in structured data. Like CoverImageURL, omit and empty differ: omit to leave the photo as it is, send a URL upload_post_image returned for this workspace to replace it, or send an explicit empty string to clear it. A JSON null behaves the same as omitting the field - it does NOT clear the photo; use an empty string for that. Changing Author to a different person? Replace or clear the photo too, or the previous author's face stays beside the new name."New value: +"New author photo URL, shown beside the byline and as the author's image in structured data. Like CoverImageURL, omit and empty differ: omit to leave the photo as it is, send a URL upload_post_image returned for this workspace to replace it, or send an explicit empty string to clear it. A JSON null behaves the same as omitting the field - it does NOT clear the photo; use an empty string for that. Changing Author alone keeps the previous author's photo beside the new name."

Previous value: -"Replaces the existing categories WHOLESALE when non-empty, and cannot clear them - an empty array leaves them unchanged. Send the complete set, not just additions. Broad sections reused across the whole blog; reuse what list_posts shows before inventing one."New value: +"Replaces the existing categories WHOLESALE when non-empty, and cannot clear them - an empty array leaves them unchanged. Send the complete set, not just additions. Broad sections shared across the whole blog; list_posts shows the categories already in use."

Previous value: -"New alt text for the cover: what the picture SHOWS, for a reader who cannot see it; one sentence, never a repeat of the title. Leave it empty when the cover only decorates the title (that renders alt=\"\"). Like CoverImageURL, omit and empty differ: omit to leave it as it is, send text to replace it, send an explicit empty string to clear it (a JSON null behaves as omitted). Sending a new CoverImageURL without restating CoverImageAlt clears the alt text — send both to change the picture and keep its description."New value: +"New text alternative for the cover image. An empty value marks a purely decorative cover (alt=\"\"). Like CoverImageURL, omit and empty differ: omit to leave it as it is, send text to replace it, send an explicit empty string to clear it (a JSON null behaves as omitted). Sending a new CoverImageURL without restating CoverImageAlt clears the alt text — send both to change the picture and keep its description."

Previous value: -"New search/social description override: the meta description, OG/Twitter description and JSON-LD description. Never rendered on the page, so it must stand alone. Omit to leave it unchanged, send text to replace it, or send an explicit empty string to clear it and resume the existing word-aware Summary fallback capped at 160 characters, never body text. Aim for 120-160 characters."New value: +"New search/social description override: the meta description, OG/Twitter description and JSON-LD description. Never rendered on the page. Omit to leave it unchanged, send text to replace it, or send an explicit empty string to clear it and resume the existing word-aware Summary fallback capped at 160 characters, never body text."

Previous value: -"New independent search/social title override. Omit to leave it unchanged, send text to replace it, or send an explicit empty string to clear it and resume the Title fallback. Aim for about 50-60 characters; 255 is the hard limit."New value: +"New independent search/social title override. Omit to leave it unchanged, send text to replace it, or send an explicit empty string to clear it and resume the Title fallback. Maximum 255 characters."

Previous value: -"New URL slug. Changing it on a PUBLISHED post breaks every existing link to that post and its search ranking - change it only when the current slug is genuinely wrong and the post is still a draft. Lowercase words joined by hyphens."New value: +"New URL slug. Changing it on a published post breaks existing links to that post and affects its search ranking. Format: lowercase words joined by hyphens."

Previous value: -"New HUMAN line: the lede under the title, the blog index card, the RSS entry and the post's line in llms.txt. Written for a reader who has already arrived, continuing from the title rather than restating it. One or two sentences, aim for up to 300 characters. Must not repeat the Description sentence."New value: +"New lede under the title, the blog index card, the RSS entry and the post's line in llms.txt."

Previous value: -"Replaces the existing tags WHOLESALE when non-empty, and cannot clear them - an empty array leaves them unchanged. To add one tag, send every existing tag plus the new one, or the rest are deleted; list_posts and get_post return the current tags. Reuse terms already used on this blog rather than coining near-duplicates: each distinct term generates its own public index page."New value: +"Replaces the existing tags WHOLESALE when non-empty, and cannot clear them - an empty array leaves them unchanged. To add one tag, send every existing tag plus the new one, or the rest are deleted; list_posts and get_post return the current tags. Each distinct term generates its own public index page, so a near-duplicate of a term already used on this blog splits one topic across two pages."

Previous value: -"New visible headline: the page heading, index-card/RSS title and newsletter fallback subject. It is also the search/social title only when SEO Title is empty. A specific claim, not a topic label; 255 is the hard limit. Changing this does NOT change the slug, so a published URL stays stable. Omit or send an empty string to leave it unchanged."New value: +"New visible headline: the page heading, index-card/RSS title and newsletter fallback subject. It is also the search/social title only when SEO Title is empty. Maximum 255 characters. Changing this does NOT change the slug, so a published URL stays stable. Omit or send an empty string to leave it unchanged."