{"slug":"antigravity-cli-validate-a-plugin-before-its-skills-load","title":"Validate an Antigravity plugin before its skills load","summary":"Antigravity CLI handles this as a draft: Release 1.4.1, published 17 Oct 2026, extends agy plugin validate so it also checks a plugin's skills, subagents, and rules. You read the errors before you install.","agent":"Antigravity CLI","agentSlug":"antigravity-cli","category":"Coding","categorySlug":"coding","roles":["Software engineer"],"roleSlugs":["software-engineer"],"industries":["Software"],"industrySlugs":["software"],"jobs":["code-review"],"topic":"Dev & Coding","topicSlug":"dev-and-coding","score":18,"difficulty":"medium","estCost":"Antigravity CLI 1.4.1 or later. The 17 Oct 2026 release notes do not list a price.","costTier":"low","timeSaved":"Finding a broken skill or rule before the CLI loads the plugin. An estimate, not a measurement.","prompt":"Validate this Antigravity plugin. Run agy plugin validate on the plugin directory I name. Do not install it. Do not enable it. Do not change its files unless I ask for a patch after I have read the report.\n\nReport errors and warnings separately. From release 1.4.1, the check covers skills, subagents, and rules. Include the file and the problem for each line. If a skill body is over the 24 KB limit, or a rule was cut to fit 24 KB, say so. If the command is missing in this install, stop.\n\nDo not treat a warning as an install approval. I decide whether to install.","steps":[{"title":"Install Antigravity CLI 1.4.1 or later","detail":"The GitHub release 1.4.1 was published 17 Oct 2026. It says agy plugin validate now also checks a plugin's skills, subagents, and rules."},{"title":"Run the validator and read every error","detail":"The notes say skills error on a SKILL.md with missing or invalid frontmatter, and warn when name or description is missing, when name does not match the folder, when the body is over 24 KB, or when a skill is skipped because an earlier skill has the same name. Subagents error on invalid frontmatter, a missing name or description, an unparseable agent.json, or a name reserved for a built-in agent. Rules error on invalid frontmatter or a missing valid trigger. A README.md in rules/ without frontmatter is skipped."},{"title":"Stop","detail":"You install the plugin after you accept the report. The validator does not install it."}],"sourceUrl":"https://github.com/google-antigravity/antigravity-cli/releases/tag/1.4.1","sourceNote":"GitHub release 1.4.1 of google-antigravity/antigravity-cli, published 17 Oct 2026 by haofan. The page returned HTTP 200 on 18 Oct 2026. The notes describe the agy plugin validate checks for skills, subagents, and rules, including the 24 KB limits. Prompt and stop rules are an AI Playbook Gems adaptation, not a vendor quote; unverified.","date":"2026-10-18","verified":false,"status":"unverified","sponsorUrl":"","metrics":[{"label":"Hands-on time","value":"Reading the validator output before install"},{"label":"You still approve","value":"Installing the plugin"}],"faq":[{"question":"Has this Antigravity CLI playbook been re-run for the catalog?","answer":"No. Status is unverified. The 1.4.1 release page was checked on 18 Oct 2026. The prompt is an adaptation."},{"question":"What stays human?","answer":"The install. The release describes a validator. It does not say a clean report installs the plugin by itself."}],"url":"https://aiplaybookgems.com/usecases/antigravity-cli-validate-a-plugin-before-its-skills-load","jsonUrl":"https://aiplaybookgems.com/api/usecases/antigravity-cli-validate-a-plugin-before-its-skills-load"}