feat: agent skills + migration guide improvements#725
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sean-brydon merged 13 commits intomainfrom Mar 23, 2026
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- Rename all 45 primitive dirs to match name fields (e.g. dialog/ -> coss-dialog/) - Write unique, trigger-optimized descriptions for all primitives - Replace user-invocable with compatibility field and metadata block - Add 'When NOT to use' sections to 19 confusable primitives - Convert rule files to proper skill dirs with SKILL.md frontmatter - Split base-vs-radix.md into concise skill + references/component-index.md - Add component registry index reference (references/component-registry.md) - Move cli.md to references/ directory - Update root SKILL.md with updated paths, component discovery section, metadata Co-Authored-By: pasquale <pasqualevitiello@gmail.com>
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The skills already live under apps/ui/skills/coss/, so the coss- prefix on each directory/name was redundant. Reverts to simple names like dialog/, select/, styling/, migration/, etc. Co-Authored-By: pasquale <pasqualevitiello@gmail.com>
sean-brydon
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Mar 23, 2026
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Summary
Adds a comprehensive set of agent skills for coss UI following the agentskills.io specification, plus improvements to the Radix migration guide and component docs.
Changes recap:
Agent Skills (
apps/ui/skills/coss/)primitives/*/SKILL.md— each with unique trigger-optimized descriptions,compatibilityfield,metadatablock (author/version), and spec-compliantname↔directory naming.mdto proper skill directories with SKILL.md frontmatter:styling,forms,composition,migrationbase-vs-radix.md→ concisemigration/SKILL.md+references/component-index.md(30-component index loaded on demand)references/component-registry.md) for fast agent-driven primitive discoverycli.mdmoved toreferences/directoryMigration Guide & Docs
<SelectValue placeholder="..." />instead of null-value itemsDialogCreateHandleandDrawerCreateHandledocsasChild→renderpattern scopeReview & Testing Checklist for Human
p-select-1throughp-select-11— verify placeholder text renders correctly now that null-value items are removed (behavioral change). This is the highest-risk change since it modifies runtime behavior.placeholderonSelectValueandalignItemWithTriggeronSelectPopup)SKILL.mdcross-references resolve correctly (e.g. root →primitives/dialog/SKILL.md, migration →references/component-index.md)Recommended test plan: Run the dev server, navigate to the Select component particles page, and confirm all Select examples display properly with placeholder text instead of a selectable null-value option.
Notes
dialog/,select/,styling/) since they already live underapps/ui/skills/coss/Link to Devin session: https://app.devin.ai/sessions/d69512ae40264e9287a699d91a24f4ba
Requested by: @pasqualevitiello