chore: migrate repository to standard knowledge base layout

skills/auto-skill/references/index.md

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+# Auto Skill Reference Index
+
+This directory contains long-form documentation that supports the `auto-skill` meta-skill.
+
+## Start Here
+
+- [`../SKILL.md`](../SKILL.md): the meta-skill entrypoint (workflow, quality gate, tooling)
+
+## Local Reference Docs (This Repo)
+
+- [`skill-spec.md`](skill-spec.md): normative spec (MUST/SHOULD/NEVER) for a production-grade Skill in this repo
+- [`quality-checklist.md`](quality-checklist.md): quality gate checklist + scoring rubric
+- [`anti-patterns.md`](anti-patterns.md): common failure modes and how to fix them
+- [`skill-seekers.md`](skill-seekers.md): linked Skill Seekers tool integration (workflow + commands)
+
+## Upstream / Official Reference
+
+- [`README.md`](README.md): upstream overview of Claude Skills (what skills are, usage, examples)
+
+## External Links (Official)
+
+- What are skills? https://support.claude.com/en/articles/12512176-what-are-skills
+- Using skills in Claude https://support.claude.com/en/articles/12512180-using-skills-in-claude
+- Creating custom skills https://support.claude.com/en/articles/12512198-creating-custom-skills
+- Skills API Quickstart https://docs.claude.com/en/api/skills-guide
+- Anthropic Skills GitHub https://github.com/anthropics/skills
+- Engineering blog: Agent Skills https://anthropic.com/engineering/equipping-agents-for-the-real-world-with-agent-skills