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fec-drawio-studio skill: editable draw.io / diagrams.net workflow for technical diagrams, including official shape lookup, brand symbols, Graphviz auto-layout, code structure maps (TS / JS / Go / Python / Rust), validation, export fallback, and an XML / Mermaid / CSV URL handoff (diagram-url --create) with self-hosted baseUrl, lightbox, dark and Windows .url shortcut support.
fec-image-generation skill: diagrams, charts, posters, UI mockups, infographics, and image-edit workflows, plus scripts/png-qa.mjs for PNG visual QA with bounded self-repair (registered in typecheck:skill-scripts).
fec-backend-requirements-handoff skill: frontend-to-backend handoff for UI data needs, user actions, states, permissions, business rules, uncertainties, and backend discussion points — without dictating implementation.
fec-web-video-presentation skill: recordable 16:9 step-driven web presentations from articles, scripts, lessons, and demos, with compact references, starter theme data, and a cross-platform Vite/React scaffold helper.
Modular reference docs: split several monolithic reference files into focused modules — fec-e2e-testing (e2e-ci-reporting / e2e-special-scenarios / e2e-visual-regression), fec-legacy-to-modern-migration (migration-execution-checklist / migration-strategy-and-mapping), fec-performance-optimization (framework-performance-patterns), fec-react-project-standard (react-project-structure / react-runtime-patterns / react-quality-patterns / react-performance-patterns), and fec-vue3-project-standard (vue3-project-structure / vue3-composables-routing / vue3-state-api-quality / vue3-performance-patterns). Each SKILL.md now points at the new focused references.
Install coverage for the new skills:tests/install/image-generation-skill.test.ts, tests/install/drawio-studio-skill.test.ts, expanded tests/install/ui-design-intelligence.test.ts (designRead, designDials, page-intent dial behavior) and tests/install/end-to-end.test.ts (new skill ids, taxonomy, relations).
Changed
BREAKING — fec-typescript-type-safety renamed to fec-typescript-project-standard: the skill directory, id, and metadata entry are renamed; type-safety content is preserved as references/type-safety.md inside the new skill, and a top-level SKILL.md covers TypeScript project standards (config, public API types, declarations, DTOs, generics). agents/fec-typescript-reviewer.md and all skills/metadata.json / skills/relations.json references were updated. Migration: replace every fec-typescript-type-safety reference (in agent / skill frontmatter, relations.json, eval queries, custom docs) with fec-typescript-project-standard.
Skill taxonomy — new project-standard category: the project-standard taxonomy was already declared in 2.6.0 metadata; this release populates it with the renamed TypeScript skill and aligns README skill tables across all 5 locales. fec-monorepo-project-standard remains in project-evolution/standard mix; the existing 7 categories are unchanged.
Skill count: 41 → 45 across README locales (en / zh-CN / zh-TW / ja-JP / ko-KR), skills/metadata.json, .claude-plugin/marketplace.json description, and skills/eval_queries.json trigger queries. README wording, project-structure docs, and example-prompts tables were re-tagged to label every capability entry by type (skill / agent / cmd).
fec-ui-design enhancements: added product-context reading, design dials (visualTension, motionIntensity, informationDensity, mediaAuthenticity, contentPersuasion), anti-generic UI guidance, and a visual-references strategy. design-system.mjs script, style-archetypes.json, ux-quality-rules.json, design-intelligence.md, and pre-delivery-checklist.md data were extended; multi-locale READMEs and project-structure docs were updated.
fec-drawio-studio lint hardening:diagram-lint now forbids XML comments, unescaped ampersands and angle brackets, self-closing edge cells, missing root / layer cells, and warns when vertex labels contain HTML without the html=1 style. New install tests cover diagram-url and diagram-lint.
fec-legacy-to-modern-migration, fec-tailwind-design-system, fec-responsive-layout: added Playwright-equivalent validation guidance so migration and visual-sensitive tasks build a before/after behavior checklist and pick the validation layer (Playwright / visual diff / typecheck / unit) matched to the change risk.
Shared rules slim-down:templates/shared/rules/fec-*.md were condensed to standing project-resident hard constraints. Productized guidance for UI design, Tailwind design systems, responsive layout, TypeScript modeling, error-handling framework internals, and rendering patterns now lives in their dedicated skills instead of being inlined into rules; fec-i18n.md, fec-responsive-design.md, fec-typescript.md, fec-state-management.md, fec-design-system.md, fec-rendering-patterns.md, fec-error-handling.md, fec-ci-cd.md, and fec-refactoring.md were all trimmed.
Multilingual README sync: the new "XML/Mermaid/CSV URL handoff" description for fec-drawio-studio and the new design-dial framing for fec-ui-design are reflected in all 5 locales. Old references to the removed /fec-build-fix slash command and fec-build-fixer agent were replaced with the real /fec-debug command and fec-debugger agent. docs/example-prompts.md (and its zh-CN mirror) now covers all 45 skills.
Marketplace metadata:marketplace.json description and package.json keywords updated to reflect the 45-skill surface; re-indented to the repository's prettier configuration.
fec-doc-sync scope: the doc-sync workflow continues to cover env notes, scripts, API / route notes, and deploy facts in addition to user-facing docs; example prompts, the /fec-doc-sync command doc, and skills/metadata.json align.
Removed
fec-typescript-type-safety skill directory: the legacy directory was removed; its content lives in fec-typescript-project-standard (references/type-safety.md). Update any custom rules, agents, or skills that referenced the old id.
Chore
JSON metadata reformat:marketplace.json and skills/metadata.json indentation / trailing-newline conventions normalized.
Project-structure docs:docs/project-structure.md and its zh-CN mirror updated to enumerate the new skills and reorganized reference modules.
Install test coverage: added tests/install/image-generation-skill.test.ts and tests/install/drawio-studio-skill.test.ts; existing end-to-end and metadata-consistency tests updated to assert the new skill ids, taxonomy, and relations.
Skill-script typecheck:typecheck:skill-scripts now also covers skills/fec-image-generation/scripts/png-qa.mjs.