Why: The user asked to bring proven external skills for document
beautification and content enrichment into the system. Surveying GitHub,
skills.sh and ClawHub found the popular document-editing skills are
proprietary (Anthropic document skills forbid extraction and derivatives),
so the compliant picks are the permissively-licensed leaders: frontend-
design (Apache-2.0, 985.7K installs), canvas-design (Apache-2.0, official
example skill with bundled OFL fonts), copywriting and copy-editing (MIT,
54.7K stars).
Evidence: Seed-time open-spec validation passes for all four vendored
SKILL.md frontmatters (dogfooded by the existing seed tests); anthropic
skill bodies verified byte-identical to the pinned upstream snapshot
(dbd4588f); marketing skills trimmed only of unvendored sibling pointers
and eval artifacts, recorded in per-skill UPSTREAM.md with pinned SHAs;
new provenance test guards license files.
Impact: Built-in skills grow from four to eight and the binary embeds
about 6 MB of font assets; prompt library base.deliverables v9 exposes
the entry points. House-style stays authoritative for Office themes; the
new skills add visual direction, poster/infographic rendering and
copywriting craft. Seeds upgrade existing deployments on next start.
Refs: Dev task feature/vendor-popular-skills
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Why
用户要求从外部生态（GitHub/skills.sh/ClawHub）引入热门、完善的文档生成/排版美化/内容充实类 skills。调研结论：anthropic 文档四件套（docx/pdf/pptx/xlsx）LICENSE.txt 为专有条款（禁止服务外留存副本、禁止衍生与分发），不可 vendor；合规的热门解为下列四项（全部 MIT/Apache-2.0）。
What
vendor 四个技能进
internal/skills/recipes/（经既有 go:embed 种子机制生效，无运行时代码变更）：每包带 UPSTREAM.md（来源、上游固定 SHA、许可证、适配说明）；anthropic 包附上游 LICENSE.txt 原文。
base.deliverablesv9 技能与路径新增入口；house-style 对 Office 主题的权威不变。Evidence
TestNames更新为 8 项；新增TestVendoredSkillsCarryProvenance守护溯源/许可文件。make test+make build双绿（逐条收据见 Dev 任务卡证据表）。Impact
Refs